/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-lit/fkp2013-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 18:41:25,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 18:41:25,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 18:41:25,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 18:41:25,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 18:41:25,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 18:41:25,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 18:41:25,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 18:41:25,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 18:41:25,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 18:41:25,886 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 18:41:25,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 18:41:25,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 18:41:25,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 18:41:25,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 18:41:25,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 18:41:25,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 18:41:25,898 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 18:41:25,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 18:41:25,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 18:41:25,910 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 18:41:25,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 18:41:25,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 18:41:25,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 18:41:25,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 18:41:25,919 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 18:41:25,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 18:41:25,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 18:41:25,923 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 18:41:25,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 18:41:25,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 18:41:25,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 18:41:25,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 18:41:25,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 18:41:25,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 18:41:25,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 18:41:25,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 18:41:25,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 18:41:25,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 18:41:25,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 18:41:25,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 18:41:25,932 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 18:41:25,975 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 18:41:25,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 18:41:25,977 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 18:41:25,977 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 18:41:25,977 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 18:41:25,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 18:41:25,978 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 18:41:25,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 18:41:25,978 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 18:41:25,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 18:41:25,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 18:41:25,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 18:41:25,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 18:41:25,981 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 18:41:25,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 18:41:25,981 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 18:41:25,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 18:41:25,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 18:41:25,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 18:41:25,982 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 18:41:25,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 18:41:25,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:41:25,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 18:41:25,982 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 18:41:25,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 18:41:25,983 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 18:41:25,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 18:41:25,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 18:41:25,983 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 18:41:25,984 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 18:41:26,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 18:41:26,278 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 18:41:26,281 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 18:41:26,282 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 18:41:26,283 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 18:41:26,283 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2013-1.i [2020-10-15 18:41:26,343 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2c9eb552/ef71110bc63a451f88d0fda4f0162002/FLAGc418571a5 [2020-10-15 18:41:26,812 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 18:41:26,813 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013-1.i [2020-10-15 18:41:26,826 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2c9eb552/ef71110bc63a451f88d0fda4f0162002/FLAGc418571a5 [2020-10-15 18:41:27,133 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2c9eb552/ef71110bc63a451f88d0fda4f0162002 [2020-10-15 18:41:27,141 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 18:41:27,143 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 18:41:27,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 18:41:27,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 18:41:27,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 18:41:27,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:41:27" (1/1) ... [2020-10-15 18:41:27,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50c49929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:41:27, skipping insertion in model container [2020-10-15 18:41:27,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:41:27" (1/1) ... [2020-10-15 18:41:27,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 18:41:27,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 18:41:27,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:41:27,652 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 18:41:27,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:41:27,817 INFO L208 MainTranslator]: Completed translation [2020-10-15 18:41:27,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:41:27 WrapperNode [2020-10-15 18:41:27,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 18:41:27,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 18:41:27,820 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 18:41:27,820 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 18:41:27,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:41:27" (1/1) ... [2020-10-15 18:41:27,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:41:27" (1/1) ... [2020-10-15 18:41:27,889 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 18:41:27,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 18:41:27,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 18:41:27,889 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 18:41:27,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:41:27" (1/1) ... [2020-10-15 18:41:27,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:41:27" (1/1) ... [2020-10-15 18:41:27,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:41:27" (1/1) ... [2020-10-15 18:41:27,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:41:27" (1/1) ... [2020-10-15 18:41:27,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:41:27" (1/1) ... [2020-10-15 18:41:27,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:41:27" (1/1) ... [2020-10-15 18:41:27,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:41:27" (1/1) ... [2020-10-15 18:41:27,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 18:41:27,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 18:41:27,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 18:41:27,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 18:41:27,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:41:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:41:27,980 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-10-15 18:41:27,980 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-10-15 18:41:27,981 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-15 18:41:27,981 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-15 18:41:27,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 18:41:27,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 18:41:27,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 18:41:27,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 18:41:27,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 18:41:27,983 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 18:41:28,336 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 18:41:28,336 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-10-15 18:41:28,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:41:28 BoogieIcfgContainer [2020-10-15 18:41:28,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 18:41:28,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 18:41:28,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 18:41:28,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 18:41:28,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:41:27" (1/3) ... [2020-10-15 18:41:28,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@321f83b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:41:28, skipping insertion in model container [2020-10-15 18:41:28,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:41:27" (2/3) ... [2020-10-15 18:41:28,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@321f83b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:41:28, skipping insertion in model container [2020-10-15 18:41:28,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:41:28" (3/3) ... [2020-10-15 18:41:28,346 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2013-1.i [2020-10-15 18:41:28,358 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 18:41:28,359 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 18:41:28,366 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 18:41:28,367 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 18:41:28,394 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,394 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,394 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,395 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,395 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,395 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,396 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,396 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,396 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,398 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,399 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,399 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,399 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,399 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,400 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,400 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,403 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,404 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,406 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,406 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,406 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,416 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,416 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,416 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,417 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,417 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,417 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:28,433 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 18:41:28,451 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:41:28,451 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:41:28,451 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:41:28,451 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:41:28,451 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:41:28,452 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:41:28,452 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:41:28,452 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:41:28,464 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:41:28,467 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 51 transitions, 112 flow [2020-10-15 18:41:28,470 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 51 transitions, 112 flow [2020-10-15 18:41:28,472 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 55 places, 51 transitions, 112 flow [2020-10-15 18:41:28,510 INFO L129 PetriNetUnfolder]: 3/61 cut-off events. [2020-10-15 18:41:28,510 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 18:41:28,516 INFO L80 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 61 events. 3/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 100 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 49. Up to 4 conditions per place. [2020-10-15 18:41:28,518 INFO L117 LiptonReduction]: Number of co-enabled transitions 692 [2020-10-15 18:41:29,610 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2020-10-15 18:41:29,669 INFO L132 LiptonReduction]: Checked pairs total: 670 [2020-10-15 18:41:29,669 INFO L134 LiptonReduction]: Total number of compositions: 47 [2020-10-15 18:41:29,676 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 12 transitions, 34 flow [2020-10-15 18:41:29,687 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 44 states. [2020-10-15 18:41:29,689 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-10-15 18:41:29,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-15 18:41:29,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:29,697 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-15 18:41:29,698 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 18:41:29,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:29,704 INFO L82 PathProgramCache]: Analyzing trace with hash 208056, now seen corresponding path program 1 times [2020-10-15 18:41:29,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:29,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148881864] [2020-10-15 18:41:29,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:29,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:29,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:29,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148881864] [2020-10-15 18:41:29,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:29,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:41:29,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193670663] [2020-10-15 18:41:29,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:41:29,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:29,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:41:29,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:41:29,930 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2020-10-15 18:41:29,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:29,958 INFO L93 Difference]: Finished difference Result 35 states and 59 transitions. [2020-10-15 18:41:29,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:41:29,960 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-15 18:41:29,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:29,971 INFO L225 Difference]: With dead ends: 35 [2020-10-15 18:41:29,972 INFO L226 Difference]: Without dead ends: 31 [2020-10-15 18:41:29,973 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:41:29,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-15 18:41:30,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-15 18:41:30,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-15 18:41:30,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2020-10-15 18:41:30,013 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 3 [2020-10-15 18:41:30,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:30,014 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2020-10-15 18:41:30,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:41:30,014 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2020-10-15 18:41:30,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-15 18:41:30,015 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:30,015 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:30,015 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 18:41:30,015 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 18:41:30,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:30,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1139052385, now seen corresponding path program 1 times [2020-10-15 18:41:30,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:30,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960429678] [2020-10-15 18:41:30,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:30,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:30,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:30,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960429678] [2020-10-15 18:41:30,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:30,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:41:30,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266752292] [2020-10-15 18:41:30,084 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:41:30,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:30,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:41:30,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:41:30,086 INFO L87 Difference]: Start difference. First operand 31 states and 51 transitions. Second operand 4 states. [2020-10-15 18:41:30,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:30,107 INFO L93 Difference]: Finished difference Result 26 states and 42 transitions. [2020-10-15 18:41:30,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:41:30,108 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-15 18:41:30,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:30,109 INFO L225 Difference]: With dead ends: 26 [2020-10-15 18:41:30,109 INFO L226 Difference]: Without dead ends: 24 [2020-10-15 18:41:30,110 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:41:30,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-15 18:41:30,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-15 18:41:30,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-15 18:41:30,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 39 transitions. [2020-10-15 18:41:30,115 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 39 transitions. Word has length 7 [2020-10-15 18:41:30,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:30,115 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 39 transitions. [2020-10-15 18:41:30,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:41:30,115 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2020-10-15 18:41:30,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 18:41:30,116 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:30,116 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:30,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 18:41:30,117 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 18:41:30,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:30,117 INFO L82 PathProgramCache]: Analyzing trace with hash -950894116, now seen corresponding path program 1 times [2020-10-15 18:41:30,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:30,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305486545] [2020-10-15 18:41:30,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:30,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 18:41:30,141 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 18:41:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 18:41:30,155 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 18:41:30,188 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 18:41:30,188 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 18:41:30,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 18:41:30,190 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 18:41:30,191 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-15 18:41:30,207 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,208 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,208 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,208 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,208 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,209 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,209 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,209 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,209 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,210 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,210 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,210 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,210 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,212 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,212 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,212 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,213 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,213 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,213 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,214 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,214 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,214 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,214 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,214 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,217 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,217 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,219 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,219 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,219 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,219 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,220 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,220 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,220 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,220 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,221 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,221 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,221 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,222 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,222 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,222 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,225 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,226 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,226 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,227 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,227 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,227 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,227 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,230 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,231 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,231 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,231 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,231 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,235 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,236 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,236 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,236 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,236 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,237 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,238 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,239 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,239 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,239 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,239 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,239 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:30,241 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 18:41:30,241 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:41:30,241 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:41:30,242 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:41:30,242 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:41:30,242 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:41:30,242 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:41:30,242 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:41:30,242 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:41:30,245 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:41:30,245 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 69 transitions, 162 flow [2020-10-15 18:41:30,246 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 69 transitions, 162 flow [2020-10-15 18:41:30,246 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 69 transitions, 162 flow [2020-10-15 18:41:30,265 INFO L129 PetriNetUnfolder]: 4/83 cut-off events. [2020-10-15 18:41:30,265 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-15 18:41:30,267 INFO L80 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 83 events. 4/83 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 141 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 92. Up to 6 conditions per place. [2020-10-15 18:41:30,269 INFO L117 LiptonReduction]: Number of co-enabled transitions 1108 [2020-10-15 18:41:31,320 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-15 18:41:31,393 INFO L132 LiptonReduction]: Checked pairs total: 1240 [2020-10-15 18:41:31,393 INFO L134 LiptonReduction]: Total number of compositions: 62 [2020-10-15 18:41:31,394 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 66 flow [2020-10-15 18:41:31,413 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 224 states. [2020-10-15 18:41:31,413 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-10-15 18:41:31,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-15 18:41:31,413 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:31,413 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-15 18:41:31,413 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:31,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:31,414 INFO L82 PathProgramCache]: Analyzing trace with hash 354555, now seen corresponding path program 1 times [2020-10-15 18:41:31,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:31,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795032374] [2020-10-15 18:41:31,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:31,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:31,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:31,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795032374] [2020-10-15 18:41:31,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:31,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:41:31,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857346573] [2020-10-15 18:41:31,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:41:31,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:31,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:41:31,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:41:31,453 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 3 states. [2020-10-15 18:41:31,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:31,477 INFO L93 Difference]: Finished difference Result 185 states and 459 transitions. [2020-10-15 18:41:31,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:41:31,478 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-15 18:41:31,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:31,483 INFO L225 Difference]: With dead ends: 185 [2020-10-15 18:41:31,484 INFO L226 Difference]: Without dead ends: 171 [2020-10-15 18:41:31,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:41:31,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-15 18:41:31,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2020-10-15 18:41:31,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-10-15 18:41:31,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 418 transitions. [2020-10-15 18:41:31,512 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 418 transitions. Word has length 3 [2020-10-15 18:41:31,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:31,515 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 418 transitions. [2020-10-15 18:41:31,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:41:31,515 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 418 transitions. [2020-10-15 18:41:31,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 18:41:31,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:31,515 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:31,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 18:41:31,516 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:31,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:31,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1106209149, now seen corresponding path program 1 times [2020-10-15 18:41:31,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:31,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241812410] [2020-10-15 18:41:31,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:31,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:31,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:31,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241812410] [2020-10-15 18:41:31,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:31,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:41:31,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229565462] [2020-10-15 18:41:31,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:41:31,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:31,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:41:31,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:41:31,565 INFO L87 Difference]: Start difference. First operand 171 states and 418 transitions. Second operand 5 states. [2020-10-15 18:41:31,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:31,625 INFO L93 Difference]: Finished difference Result 205 states and 460 transitions. [2020-10-15 18:41:31,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:41:31,625 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-15 18:41:31,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:31,628 INFO L225 Difference]: With dead ends: 205 [2020-10-15 18:41:31,629 INFO L226 Difference]: Without dead ends: 201 [2020-10-15 18:41:31,629 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:41:31,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-10-15 18:41:31,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 162. [2020-10-15 18:41:31,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-15 18:41:31,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 399 transitions. [2020-10-15 18:41:31,664 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 399 transitions. Word has length 9 [2020-10-15 18:41:31,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:31,664 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 399 transitions. [2020-10-15 18:41:31,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:41:31,664 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 399 transitions. [2020-10-15 18:41:31,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:41:31,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:31,666 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:31,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 18:41:31,666 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:31,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:31,667 INFO L82 PathProgramCache]: Analyzing trace with hash 583411714, now seen corresponding path program 1 times [2020-10-15 18:41:31,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:31,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753017062] [2020-10-15 18:41:31,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:31,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:31,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 18:41:31,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753017062] [2020-10-15 18:41:31,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:31,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:41:31,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960630669] [2020-10-15 18:41:31,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:41:31,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:31,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:41:31,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:41:31,755 INFO L87 Difference]: Start difference. First operand 162 states and 399 transitions. Second operand 5 states. [2020-10-15 18:41:31,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:31,823 INFO L93 Difference]: Finished difference Result 189 states and 423 transitions. [2020-10-15 18:41:31,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:41:31,824 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 18:41:31,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:31,826 INFO L225 Difference]: With dead ends: 189 [2020-10-15 18:41:31,827 INFO L226 Difference]: Without dead ends: 185 [2020-10-15 18:41:31,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:41:31,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-10-15 18:41:31,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 153. [2020-10-15 18:41:31,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-10-15 18:41:31,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 367 transitions. [2020-10-15 18:41:31,843 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 367 transitions. Word has length 13 [2020-10-15 18:41:31,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:31,844 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 367 transitions. [2020-10-15 18:41:31,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:41:31,844 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 367 transitions. [2020-10-15 18:41:31,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 18:41:31,846 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:31,846 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:31,846 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 18:41:31,846 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:31,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:31,847 INFO L82 PathProgramCache]: Analyzing trace with hash 903154619, now seen corresponding path program 1 times [2020-10-15 18:41:31,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:31,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150183768] [2020-10-15 18:41:31,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 18:41:31,863 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 18:41:31,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 18:41:31,875 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 18:41:31,882 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 18:41:31,882 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 18:41:31,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 18:41:31,895 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 18:41:31,897 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-15 18:41:31,907 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,907 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,907 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,908 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,908 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,908 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,908 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,908 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,909 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,909 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,909 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,909 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,909 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,909 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,910 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,910 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,910 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,910 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,910 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,911 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,911 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,911 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,911 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,911 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,911 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,912 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,912 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,912 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,912 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,912 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,913 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,913 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,913 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,913 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,913 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,913 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,914 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,914 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,914 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,914 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,914 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,914 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,915 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,915 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,915 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,915 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,915 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,915 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,916 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,916 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,916 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,916 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,916 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,916 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,917 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,917 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,917 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,917 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,917 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,918 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,918 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,919 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,919 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,919 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,919 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,920 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,922 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,923 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,923 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,923 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,923 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,925 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,926 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,926 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,926 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,926 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,928 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,929 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,929 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,929 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,929 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,929 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,931 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,932 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,932 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,932 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,932 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,933 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,934 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,935 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,935 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,935 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,935 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,935 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:31,937 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-15 18:41:31,938 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:41:31,938 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:41:31,938 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:41:31,938 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:41:31,938 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:41:31,938 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:41:31,938 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:41:31,939 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:41:31,941 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:41:31,941 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 87 transitions, 216 flow [2020-10-15 18:41:31,941 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 87 transitions, 216 flow [2020-10-15 18:41:31,941 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 87 transitions, 216 flow [2020-10-15 18:41:31,960 INFO L129 PetriNetUnfolder]: 5/105 cut-off events. [2020-10-15 18:41:31,961 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-15 18:41:31,962 INFO L80 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 105 events. 5/105 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 187 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 119. Up to 8 conditions per place. [2020-10-15 18:41:31,966 INFO L117 LiptonReduction]: Number of co-enabled transitions 1608 [2020-10-15 18:41:33,282 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-10-15 18:41:33,444 INFO L132 LiptonReduction]: Checked pairs total: 2157 [2020-10-15 18:41:33,444 INFO L134 LiptonReduction]: Total number of compositions: 77 [2020-10-15 18:41:33,444 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 27 transitions, 96 flow [2020-10-15 18:41:33,471 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 683 states. [2020-10-15 18:41:33,471 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states. [2020-10-15 18:41:33,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-15 18:41:33,471 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:33,472 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-15 18:41:33,472 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:33,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:33,472 INFO L82 PathProgramCache]: Analyzing trace with hash 535749, now seen corresponding path program 1 times [2020-10-15 18:41:33,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:33,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950694794] [2020-10-15 18:41:33,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:33,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:33,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:33,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950694794] [2020-10-15 18:41:33,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:33,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:41:33,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173587754] [2020-10-15 18:41:33,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:41:33,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:33,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:41:33,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:41:33,504 INFO L87 Difference]: Start difference. First operand 683 states. Second operand 3 states. [2020-10-15 18:41:33,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:33,535 INFO L93 Difference]: Finished difference Result 600 states and 1886 transitions. [2020-10-15 18:41:33,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:41:33,536 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-15 18:41:33,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:33,542 INFO L225 Difference]: With dead ends: 600 [2020-10-15 18:41:33,542 INFO L226 Difference]: Without dead ends: 559 [2020-10-15 18:41:33,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:41:33,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2020-10-15 18:41:33,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2020-10-15 18:41:33,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-10-15 18:41:33,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 1737 transitions. [2020-10-15 18:41:33,586 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 1737 transitions. Word has length 3 [2020-10-15 18:41:33,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:33,586 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 1737 transitions. [2020-10-15 18:41:33,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:41:33,586 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 1737 transitions. [2020-10-15 18:41:33,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 18:41:33,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:33,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:33,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 18:41:33,587 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:33,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:33,588 INFO L82 PathProgramCache]: Analyzing trace with hash -404806880, now seen corresponding path program 1 times [2020-10-15 18:41:33,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:33,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036578955] [2020-10-15 18:41:33,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:33,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:33,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036578955] [2020-10-15 18:41:33,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:33,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:41:33,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330077127] [2020-10-15 18:41:33,633 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:41:33,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:33,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:41:33,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:41:33,634 INFO L87 Difference]: Start difference. First operand 559 states and 1737 transitions. Second operand 5 states. [2020-10-15 18:41:33,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:33,704 INFO L93 Difference]: Finished difference Result 817 states and 2317 transitions. [2020-10-15 18:41:33,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:41:33,704 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-15 18:41:33,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:33,711 INFO L225 Difference]: With dead ends: 817 [2020-10-15 18:41:33,711 INFO L226 Difference]: Without dead ends: 812 [2020-10-15 18:41:33,712 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:41:33,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2020-10-15 18:41:33,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 585. [2020-10-15 18:41:33,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-10-15 18:41:33,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 1832 transitions. [2020-10-15 18:41:33,740 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 1832 transitions. Word has length 9 [2020-10-15 18:41:33,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:33,741 INFO L481 AbstractCegarLoop]: Abstraction has 585 states and 1832 transitions. [2020-10-15 18:41:33,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:41:33,741 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 1832 transitions. [2020-10-15 18:41:33,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:41:33,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:33,742 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:33,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 18:41:33,743 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:33,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:33,743 INFO L82 PathProgramCache]: Analyzing trace with hash -669323978, now seen corresponding path program 1 times [2020-10-15 18:41:33,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:33,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494118656] [2020-10-15 18:41:33,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:33,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:33,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 18:41:33,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494118656] [2020-10-15 18:41:33,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:33,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:41:33,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100557516] [2020-10-15 18:41:33,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:41:33,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:33,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:41:33,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:41:33,788 INFO L87 Difference]: Start difference. First operand 585 states and 1832 transitions. Second operand 5 states. [2020-10-15 18:41:33,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:33,875 INFO L93 Difference]: Finished difference Result 843 states and 2406 transitions. [2020-10-15 18:41:33,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:41:33,875 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 18:41:33,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:33,882 INFO L225 Difference]: With dead ends: 843 [2020-10-15 18:41:33,882 INFO L226 Difference]: Without dead ends: 836 [2020-10-15 18:41:33,884 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:41:33,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2020-10-15 18:41:33,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 611. [2020-10-15 18:41:33,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-10-15 18:41:33,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1906 transitions. [2020-10-15 18:41:33,914 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1906 transitions. Word has length 13 [2020-10-15 18:41:33,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:33,914 INFO L481 AbstractCegarLoop]: Abstraction has 611 states and 1906 transitions. [2020-10-15 18:41:33,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:41:33,915 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1906 transitions. [2020-10-15 18:41:33,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:41:33,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:33,919 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:33,919 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 18:41:33,919 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:33,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:33,920 INFO L82 PathProgramCache]: Analyzing trace with hash -56737855, now seen corresponding path program 1 times [2020-10-15 18:41:33,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:33,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733547709] [2020-10-15 18:41:33,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:34,023 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:34,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733547709] [2020-10-15 18:41:34,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173626334] [2020-10-15 18:41:34,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:41:34,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:34,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 18:41:34,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:41:34,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:34,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:41:34,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 18:41:34,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807568952] [2020-10-15 18:41:34,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:41:34,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:34,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:41:34,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:41:34,138 INFO L87 Difference]: Start difference. First operand 611 states and 1906 transitions. Second operand 9 states. [2020-10-15 18:41:34,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:34,315 INFO L93 Difference]: Finished difference Result 1059 states and 2818 transitions. [2020-10-15 18:41:34,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:41:34,315 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-10-15 18:41:34,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:34,323 INFO L225 Difference]: With dead ends: 1059 [2020-10-15 18:41:34,323 INFO L226 Difference]: Without dead ends: 1052 [2020-10-15 18:41:34,323 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 18:41:34,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2020-10-15 18:41:34,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 591. [2020-10-15 18:41:34,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-10-15 18:41:34,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1840 transitions. [2020-10-15 18:41:34,351 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1840 transitions. Word has length 15 [2020-10-15 18:41:34,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:34,352 INFO L481 AbstractCegarLoop]: Abstraction has 591 states and 1840 transitions. [2020-10-15 18:41:34,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:41:34,352 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1840 transitions. [2020-10-15 18:41:34,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:41:34,353 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:34,353 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:34,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-10-15 18:41:34,560 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:34,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:34,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1024744543, now seen corresponding path program 2 times [2020-10-15 18:41:34,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:34,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823304346] [2020-10-15 18:41:34,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:34,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:34,624 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 18:41:34,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823304346] [2020-10-15 18:41:34,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:34,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:41:34,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706658980] [2020-10-15 18:41:34,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:41:34,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:34,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:41:34,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:41:34,627 INFO L87 Difference]: Start difference. First operand 591 states and 1840 transitions. Second operand 7 states. [2020-10-15 18:41:34,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:34,819 INFO L93 Difference]: Finished difference Result 1053 states and 2807 transitions. [2020-10-15 18:41:34,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:41:34,820 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-15 18:41:34,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:34,827 INFO L225 Difference]: With dead ends: 1053 [2020-10-15 18:41:34,827 INFO L226 Difference]: Without dead ends: 1045 [2020-10-15 18:41:34,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:41:34,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2020-10-15 18:41:34,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 536. [2020-10-15 18:41:34,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2020-10-15 18:41:34,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1688 transitions. [2020-10-15 18:41:34,875 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1688 transitions. Word has length 15 [2020-10-15 18:41:34,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:34,875 INFO L481 AbstractCegarLoop]: Abstraction has 536 states and 1688 transitions. [2020-10-15 18:41:34,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:41:34,875 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1688 transitions. [2020-10-15 18:41:34,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 18:41:34,876 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:34,876 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:34,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 18:41:34,876 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:34,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:34,877 INFO L82 PathProgramCache]: Analyzing trace with hash 68174732, now seen corresponding path program 1 times [2020-10-15 18:41:34,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:34,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928739800] [2020-10-15 18:41:34,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:34,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:34,945 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:41:34,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928739800] [2020-10-15 18:41:34,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:34,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:41:34,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796862385] [2020-10-15 18:41:34,947 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:41:34,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:34,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:41:34,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:41:34,949 INFO L87 Difference]: Start difference. First operand 536 states and 1688 transitions. Second operand 5 states. [2020-10-15 18:41:35,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:35,030 INFO L93 Difference]: Finished difference Result 736 states and 2123 transitions. [2020-10-15 18:41:35,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:41:35,031 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-15 18:41:35,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:35,036 INFO L225 Difference]: With dead ends: 736 [2020-10-15 18:41:35,036 INFO L226 Difference]: Without dead ends: 728 [2020-10-15 18:41:35,037 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:41:35,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2020-10-15 18:41:35,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 549. [2020-10-15 18:41:35,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 549 states. [2020-10-15 18:41:35,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 1684 transitions. [2020-10-15 18:41:35,058 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 1684 transitions. Word has length 17 [2020-10-15 18:41:35,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:35,059 INFO L481 AbstractCegarLoop]: Abstraction has 549 states and 1684 transitions. [2020-10-15 18:41:35,059 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:41:35,059 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 1684 transitions. [2020-10-15 18:41:35,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 18:41:35,060 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:35,060 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:35,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 18:41:35,060 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:35,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:35,061 INFO L82 PathProgramCache]: Analyzing trace with hash 2109628021, now seen corresponding path program 1 times [2020-10-15 18:41:35,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:35,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755660210] [2020-10-15 18:41:35,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 18:41:35,082 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 18:41:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 18:41:35,095 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 18:41:35,109 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 18:41:35,109 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 18:41:35,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 18:41:35,110 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 18:41:35,111 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-15 18:41:35,128 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,128 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,128 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,128 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,129 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,129 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,129 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,129 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,129 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,130 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,130 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,130 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,131 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,131 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,131 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,131 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,131 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,131 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,132 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,132 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,132 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,132 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,132 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,132 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,133 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,133 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,133 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,133 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,133 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,133 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,133 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,133 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,134 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,134 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,134 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,134 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,135 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,135 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,135 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,135 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,135 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,135 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,135 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,136 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,136 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,136 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,136 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,136 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,136 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,137 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,137 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,137 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,137 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,137 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,137 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,137 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,138 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,138 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,138 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,138 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,138 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,138 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,138 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,139 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,139 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,139 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,139 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,139 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,139 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,139 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,140 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,140 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,140 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,140 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,140 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,140 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,140 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,141 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,141 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,141 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,141 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,141 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,141 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,141 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,142 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,142 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,142 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,142 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,142 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,144 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,144 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,145 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,145 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,145 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,146 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,146 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,147 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,147 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,147 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,148 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,149 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,149 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,149 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,149 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,151 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,151 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,151 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,151 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,152 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,152 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,153 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,153 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,153 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,154 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,154 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,154 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,155 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,156 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,156 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,156 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,157 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,157 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,158 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,159 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,159 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,159 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,159 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,159 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:35,162 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-15 18:41:35,162 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:41:35,162 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:41:35,162 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:41:35,162 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:41:35,162 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:41:35,163 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:41:35,163 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:41:35,163 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:41:35,164 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:41:35,165 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 105 transitions, 274 flow [2020-10-15 18:41:35,165 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 118 places, 105 transitions, 274 flow [2020-10-15 18:41:35,166 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 118 places, 105 transitions, 274 flow [2020-10-15 18:41:35,202 INFO L129 PetriNetUnfolder]: 6/127 cut-off events. [2020-10-15 18:41:35,202 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-15 18:41:35,206 INFO L80 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 127 events. 6/127 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 211 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 147. Up to 10 conditions per place. [2020-10-15 18:41:35,211 INFO L117 LiptonReduction]: Number of co-enabled transitions 2192 [2020-10-15 18:41:36,832 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-15 18:41:36,892 INFO L132 LiptonReduction]: Checked pairs total: 2978 [2020-10-15 18:41:36,893 INFO L134 LiptonReduction]: Total number of compositions: 97 [2020-10-15 18:41:36,893 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 33 transitions, 130 flow [2020-10-15 18:41:37,013 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2060 states. [2020-10-15 18:41:37,014 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states. [2020-10-15 18:41:37,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-15 18:41:37,014 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:37,014 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-15 18:41:37,015 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 18:41:37,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:37,015 INFO L82 PathProgramCache]: Analyzing trace with hash 753552, now seen corresponding path program 1 times [2020-10-15 18:41:37,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:37,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419822080] [2020-10-15 18:41:37,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:37,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:37,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:37,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419822080] [2020-10-15 18:41:37,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:37,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:41:37,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654991293] [2020-10-15 18:41:37,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:41:37,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:37,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:41:37,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:41:37,032 INFO L87 Difference]: Start difference. First operand 2060 states. Second operand 3 states. [2020-10-15 18:41:37,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:37,066 INFO L93 Difference]: Finished difference Result 1889 states and 7217 transitions. [2020-10-15 18:41:37,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:41:37,066 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-15 18:41:37,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:37,082 INFO L225 Difference]: With dead ends: 1889 [2020-10-15 18:41:37,083 INFO L226 Difference]: Without dead ends: 1767 [2020-10-15 18:41:37,083 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:41:37,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2020-10-15 18:41:37,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1767. [2020-10-15 18:41:37,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1767 states. [2020-10-15 18:41:37,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 6690 transitions. [2020-10-15 18:41:37,167 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 6690 transitions. Word has length 3 [2020-10-15 18:41:37,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:37,167 INFO L481 AbstractCegarLoop]: Abstraction has 1767 states and 6690 transitions. [2020-10-15 18:41:37,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:41:37,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 6690 transitions. [2020-10-15 18:41:37,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 18:41:37,168 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:37,168 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:37,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 18:41:37,169 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 18:41:37,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:37,169 INFO L82 PathProgramCache]: Analyzing trace with hash -260829075, now seen corresponding path program 1 times [2020-10-15 18:41:37,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:37,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868058237] [2020-10-15 18:41:37,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:37,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:37,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:37,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868058237] [2020-10-15 18:41:37,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:37,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:41:37,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030476183] [2020-10-15 18:41:37,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:41:37,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:37,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:41:37,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:41:37,197 INFO L87 Difference]: Start difference. First operand 1767 states and 6690 transitions. Second operand 5 states. [2020-10-15 18:41:37,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:37,273 INFO L93 Difference]: Finished difference Result 2905 states and 10138 transitions. [2020-10-15 18:41:37,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:41:37,273 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-15 18:41:37,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:37,296 INFO L225 Difference]: With dead ends: 2905 [2020-10-15 18:41:37,297 INFO L226 Difference]: Without dead ends: 2899 [2020-10-15 18:41:37,297 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:41:37,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2020-10-15 18:41:37,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 1966. [2020-10-15 18:41:37,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1966 states. [2020-10-15 18:41:37,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 7503 transitions. [2020-10-15 18:41:37,399 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 7503 transitions. Word has length 9 [2020-10-15 18:41:37,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:37,399 INFO L481 AbstractCegarLoop]: Abstraction has 1966 states and 7503 transitions. [2020-10-15 18:41:37,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:41:37,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 7503 transitions. [2020-10-15 18:41:37,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:41:37,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:37,400 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:37,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 18:41:37,400 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 18:41:37,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:37,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1408743431, now seen corresponding path program 1 times [2020-10-15 18:41:37,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:37,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375132777] [2020-10-15 18:41:37,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:37,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:37,428 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 18:41:37,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375132777] [2020-10-15 18:41:37,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:37,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:41:37,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800356669] [2020-10-15 18:41:37,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:41:37,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:37,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:41:37,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:41:37,430 INFO L87 Difference]: Start difference. First operand 1966 states and 7503 transitions. Second operand 5 states. [2020-10-15 18:41:37,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:37,513 INFO L93 Difference]: Finished difference Result 3204 states and 11312 transitions. [2020-10-15 18:41:37,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:41:37,513 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 18:41:37,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:37,539 INFO L225 Difference]: With dead ends: 3204 [2020-10-15 18:41:37,539 INFO L226 Difference]: Without dead ends: 3194 [2020-10-15 18:41:37,539 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:41:37,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3194 states. [2020-10-15 18:41:37,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3194 to 2200. [2020-10-15 18:41:37,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2200 states. [2020-10-15 18:41:37,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2200 states to 2200 states and 8453 transitions. [2020-10-15 18:41:37,690 INFO L78 Accepts]: Start accepts. Automaton has 2200 states and 8453 transitions. Word has length 13 [2020-10-15 18:41:37,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:37,690 INFO L481 AbstractCegarLoop]: Abstraction has 2200 states and 8453 transitions. [2020-10-15 18:41:37,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:41:37,691 INFO L276 IsEmpty]: Start isEmpty. Operand 2200 states and 8453 transitions. [2020-10-15 18:41:37,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:41:37,691 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:37,691 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:37,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 18:41:37,692 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 18:41:37,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:37,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1555768808, now seen corresponding path program 1 times [2020-10-15 18:41:37,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:37,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968706264] [2020-10-15 18:41:37,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:37,740 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:37,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968706264] [2020-10-15 18:41:37,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720186297] [2020-10-15 18:41:37,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:41:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:37,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 18:41:37,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:41:37,822 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:37,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:41:37,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 18:41:37,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616612159] [2020-10-15 18:41:37,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:41:37,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:37,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:41:37,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:41:37,824 INFO L87 Difference]: Start difference. First operand 2200 states and 8453 transitions. Second operand 9 states. [2020-10-15 18:41:38,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:38,054 INFO L93 Difference]: Finished difference Result 4556 states and 14911 transitions. [2020-10-15 18:41:38,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:41:38,054 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-10-15 18:41:38,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:38,088 INFO L225 Difference]: With dead ends: 4556 [2020-10-15 18:41:38,088 INFO L226 Difference]: Without dead ends: 4546 [2020-10-15 18:41:38,088 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 18:41:38,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4546 states. [2020-10-15 18:41:38,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4546 to 2157. [2020-10-15 18:41:38,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2157 states. [2020-10-15 18:41:38,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2157 states to 2157 states and 8278 transitions. [2020-10-15 18:41:38,198 INFO L78 Accepts]: Start accepts. Automaton has 2157 states and 8278 transitions. Word has length 15 [2020-10-15 18:41:38,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:38,198 INFO L481 AbstractCegarLoop]: Abstraction has 2157 states and 8278 transitions. [2020-10-15 18:41:38,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:41:38,198 INFO L276 IsEmpty]: Start isEmpty. Operand 2157 states and 8278 transitions. [2020-10-15 18:41:38,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:41:38,199 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:38,199 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:38,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-10-15 18:41:38,415 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 18:41:38,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:38,415 INFO L82 PathProgramCache]: Analyzing trace with hash -887756896, now seen corresponding path program 2 times [2020-10-15 18:41:38,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:38,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859598962] [2020-10-15 18:41:38,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:38,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:38,455 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 18:41:38,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859598962] [2020-10-15 18:41:38,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:38,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:41:38,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033700672] [2020-10-15 18:41:38,456 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:41:38,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:38,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:41:38,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:41:38,457 INFO L87 Difference]: Start difference. First operand 2157 states and 8278 transitions. Second operand 7 states. [2020-10-15 18:41:38,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:38,654 INFO L93 Difference]: Finished difference Result 4612 states and 15111 transitions. [2020-10-15 18:41:38,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:41:38,655 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-15 18:41:38,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:38,672 INFO L225 Difference]: With dead ends: 4612 [2020-10-15 18:41:38,672 INFO L226 Difference]: Without dead ends: 4601 [2020-10-15 18:41:38,673 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:41:38,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4601 states. [2020-10-15 18:41:38,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4601 to 2035. [2020-10-15 18:41:38,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2035 states. [2020-10-15 18:41:38,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2035 states to 2035 states and 7845 transitions. [2020-10-15 18:41:38,775 INFO L78 Accepts]: Start accepts. Automaton has 2035 states and 7845 transitions. Word has length 15 [2020-10-15 18:41:38,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:38,776 INFO L481 AbstractCegarLoop]: Abstraction has 2035 states and 7845 transitions. [2020-10-15 18:41:38,776 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:41:38,776 INFO L276 IsEmpty]: Start isEmpty. Operand 2035 states and 7845 transitions. [2020-10-15 18:41:38,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 18:41:38,777 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:38,777 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:38,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 18:41:38,777 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 18:41:38,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:38,778 INFO L82 PathProgramCache]: Analyzing trace with hash 695111130, now seen corresponding path program 1 times [2020-10-15 18:41:38,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:38,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286546079] [2020-10-15 18:41:38,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:38,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:38,828 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:41:38,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286546079] [2020-10-15 18:41:38,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:38,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:41:38,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014484855] [2020-10-15 18:41:38,829 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:41:38,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:38,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:41:38,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:41:38,830 INFO L87 Difference]: Start difference. First operand 2035 states and 7845 transitions. Second operand 5 states. [2020-10-15 18:41:38,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:38,904 INFO L93 Difference]: Finished difference Result 3265 states and 11681 transitions. [2020-10-15 18:41:38,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:41:38,904 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-15 18:41:38,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:38,919 INFO L225 Difference]: With dead ends: 3265 [2020-10-15 18:41:38,919 INFO L226 Difference]: Without dead ends: 3250 [2020-10-15 18:41:38,919 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:41:38,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3250 states. [2020-10-15 18:41:39,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3250 to 2281. [2020-10-15 18:41:39,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2281 states. [2020-10-15 18:41:39,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 8755 transitions. [2020-10-15 18:41:39,024 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 8755 transitions. Word has length 17 [2020-10-15 18:41:39,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:39,025 INFO L481 AbstractCegarLoop]: Abstraction has 2281 states and 8755 transitions. [2020-10-15 18:41:39,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:41:39,025 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 8755 transitions. [2020-10-15 18:41:39,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 18:41:39,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:39,027 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:39,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-15 18:41:39,027 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 18:41:39,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:39,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1754455113, now seen corresponding path program 1 times [2020-10-15 18:41:39,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:39,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765247445] [2020-10-15 18:41:39,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:39,103 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 18:41:39,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765247445] [2020-10-15 18:41:39,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375730093] [2020-10-15 18:41:39,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:41:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:39,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 18:41:39,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:41:39,262 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 18:41:39,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:41:39,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 18:41:39,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650592780] [2020-10-15 18:41:39,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:41:39,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:39,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:41:39,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:41:39,264 INFO L87 Difference]: Start difference. First operand 2281 states and 8755 transitions. Second operand 9 states. [2020-10-15 18:41:39,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:39,483 INFO L93 Difference]: Finished difference Result 4825 states and 15986 transitions. [2020-10-15 18:41:39,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:41:39,483 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-10-15 18:41:39,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:39,499 INFO L225 Difference]: With dead ends: 4825 [2020-10-15 18:41:39,499 INFO L226 Difference]: Without dead ends: 4813 [2020-10-15 18:41:39,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 18:41:39,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4813 states. [2020-10-15 18:41:39,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4813 to 2305. [2020-10-15 18:41:39,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2305 states. [2020-10-15 18:41:39,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 8815 transitions. [2020-10-15 18:41:39,604 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 8815 transitions. Word has length 19 [2020-10-15 18:41:39,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:39,604 INFO L481 AbstractCegarLoop]: Abstraction has 2305 states and 8815 transitions. [2020-10-15 18:41:39,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:41:39,605 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 8815 transitions. [2020-10-15 18:41:39,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 18:41:39,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:39,606 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:39,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:41:39,812 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 18:41:39,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:39,812 INFO L82 PathProgramCache]: Analyzing trace with hash -131464925, now seen corresponding path program 1 times [2020-10-15 18:41:39,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:39,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114232145] [2020-10-15 18:41:39,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:39,856 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 18:41:39,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114232145] [2020-10-15 18:41:39,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258264982] [2020-10-15 18:41:39,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:41:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:39,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 18:41:39,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:41:39,981 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 18:41:39,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:41:39,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 18:41:39,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717233470] [2020-10-15 18:41:39,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:41:39,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:39,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:41:39,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:41:39,984 INFO L87 Difference]: Start difference. First operand 2305 states and 8815 transitions. Second operand 9 states. [2020-10-15 18:41:40,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:40,233 INFO L93 Difference]: Finished difference Result 4942 states and 16410 transitions. [2020-10-15 18:41:40,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:41:40,234 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-10-15 18:41:40,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:40,250 INFO L225 Difference]: With dead ends: 4942 [2020-10-15 18:41:40,250 INFO L226 Difference]: Without dead ends: 4925 [2020-10-15 18:41:40,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 18:41:40,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4925 states. [2020-10-15 18:41:40,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4925 to 2299. [2020-10-15 18:41:40,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2299 states. [2020-10-15 18:41:40,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 8782 transitions. [2020-10-15 18:41:40,355 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 8782 transitions. Word has length 19 [2020-10-15 18:41:40,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:40,356 INFO L481 AbstractCegarLoop]: Abstraction has 2299 states and 8782 transitions. [2020-10-15 18:41:40,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:41:40,356 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 8782 transitions. [2020-10-15 18:41:40,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 18:41:40,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:40,357 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:40,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:41:40,572 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 18:41:40,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:40,572 INFO L82 PathProgramCache]: Analyzing trace with hash -2013120191, now seen corresponding path program 2 times [2020-10-15 18:41:40,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:40,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173922511] [2020-10-15 18:41:40,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:40,626 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:41:40,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173922511] [2020-10-15 18:41:40,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:40,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:41:40,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208847504] [2020-10-15 18:41:40,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:41:40,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:40,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:41:40,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:41:40,628 INFO L87 Difference]: Start difference. First operand 2299 states and 8782 transitions. Second operand 7 states. [2020-10-15 18:41:40,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:40,837 INFO L93 Difference]: Finished difference Result 4934 states and 16393 transitions. [2020-10-15 18:41:40,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:41:40,837 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 18:41:40,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:40,854 INFO L225 Difference]: With dead ends: 4934 [2020-10-15 18:41:40,854 INFO L226 Difference]: Without dead ends: 4917 [2020-10-15 18:41:40,855 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:41:40,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4917 states. [2020-10-15 18:41:41,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4917 to 2216. [2020-10-15 18:41:41,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2216 states. [2020-10-15 18:41:41,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2216 states to 2216 states and 8477 transitions. [2020-10-15 18:41:41,029 INFO L78 Accepts]: Start accepts. Automaton has 2216 states and 8477 transitions. Word has length 19 [2020-10-15 18:41:41,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:41,030 INFO L481 AbstractCegarLoop]: Abstraction has 2216 states and 8477 transitions. [2020-10-15 18:41:41,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:41:41,030 INFO L276 IsEmpty]: Start isEmpty. Operand 2216 states and 8477 transitions. [2020-10-15 18:41:41,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 18:41:41,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:41,032 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:41,032 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-15 18:41:41,032 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 18:41:41,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:41,033 INFO L82 PathProgramCache]: Analyzing trace with hash -2013113743, now seen corresponding path program 2 times [2020-10-15 18:41:41,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:41,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150049619] [2020-10-15 18:41:41,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:41,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:41,098 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:41:41,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150049619] [2020-10-15 18:41:41,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:41,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:41:41,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649047639] [2020-10-15 18:41:41,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:41:41,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:41,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:41:41,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:41:41,100 INFO L87 Difference]: Start difference. First operand 2216 states and 8477 transitions. Second operand 7 states. [2020-10-15 18:41:41,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:41,281 INFO L93 Difference]: Finished difference Result 4774 states and 15828 transitions. [2020-10-15 18:41:41,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:41:41,281 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 18:41:41,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:41,296 INFO L225 Difference]: With dead ends: 4774 [2020-10-15 18:41:41,296 INFO L226 Difference]: Without dead ends: 4757 [2020-10-15 18:41:41,297 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:41:41,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4757 states. [2020-10-15 18:41:41,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4757 to 2150. [2020-10-15 18:41:41,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2150 states. [2020-10-15 18:41:41,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 8243 transitions. [2020-10-15 18:41:41,384 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 8243 transitions. Word has length 19 [2020-10-15 18:41:41,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:41,384 INFO L481 AbstractCegarLoop]: Abstraction has 2150 states and 8243 transitions. [2020-10-15 18:41:41,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:41:41,385 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 8243 transitions. [2020-10-15 18:41:41,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 18:41:41,386 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:41,386 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:41,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-15 18:41:41,386 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 18:41:41,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:41,387 INFO L82 PathProgramCache]: Analyzing trace with hash -9146414, now seen corresponding path program 1 times [2020-10-15 18:41:41,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:41,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958620253] [2020-10-15 18:41:41,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:41,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:41,454 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:41,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958620253] [2020-10-15 18:41:41,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621404195] [2020-10-15 18:41:41,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:41:41,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:41,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:41:41,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:41:41,541 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:41,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:41:41,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:41:41,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838599985] [2020-10-15 18:41:41,542 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:41:41,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:41,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:41:41,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:41:41,543 INFO L87 Difference]: Start difference. First operand 2150 states and 8243 transitions. Second operand 11 states. [2020-10-15 18:41:42,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:42,086 INFO L93 Difference]: Finished difference Result 6025 states and 18746 transitions. [2020-10-15 18:41:42,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:41:42,086 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 18:41:42,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:42,104 INFO L225 Difference]: With dead ends: 6025 [2020-10-15 18:41:42,104 INFO L226 Difference]: Without dead ends: 6017 [2020-10-15 18:41:42,105 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:41:42,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6017 states. [2020-10-15 18:41:42,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6017 to 2117. [2020-10-15 18:41:42,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2117 states. [2020-10-15 18:41:42,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 8106 transitions. [2020-10-15 18:41:42,205 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 8106 transitions. Word has length 21 [2020-10-15 18:41:42,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:42,206 INFO L481 AbstractCegarLoop]: Abstraction has 2117 states and 8106 transitions. [2020-10-15 18:41:42,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:41:42,206 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 8106 transitions. [2020-10-15 18:41:42,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 18:41:42,207 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:42,208 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:42,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-10-15 18:41:42,422 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 18:41:42,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:42,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1890795232, now seen corresponding path program 2 times [2020-10-15 18:41:42,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:42,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082369142] [2020-10-15 18:41:42,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:42,480 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 18:41:42,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082369142] [2020-10-15 18:41:42,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366306234] [2020-10-15 18:41:42,481 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:41:42,648 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 18:41:42,649 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:41:42,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:41:42,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:41:42,686 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 18:41:42,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:41:42,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:41:42,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459152454] [2020-10-15 18:41:42,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:41:42,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:42,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:41:42,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:41:42,689 INFO L87 Difference]: Start difference. First operand 2117 states and 8106 transitions. Second operand 11 states. [2020-10-15 18:41:43,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:43,270 INFO L93 Difference]: Finished difference Result 5914 states and 18384 transitions. [2020-10-15 18:41:43,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:41:43,271 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 18:41:43,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:43,285 INFO L225 Difference]: With dead ends: 5914 [2020-10-15 18:41:43,285 INFO L226 Difference]: Without dead ends: 5903 [2020-10-15 18:41:43,286 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:41:43,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5903 states. [2020-10-15 18:41:43,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5903 to 2085. [2020-10-15 18:41:43,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2085 states. [2020-10-15 18:41:43,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 7975 transitions. [2020-10-15 18:41:43,386 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 7975 transitions. Word has length 21 [2020-10-15 18:41:43,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:43,386 INFO L481 AbstractCegarLoop]: Abstraction has 2085 states and 7975 transitions. [2020-10-15 18:41:43,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:41:43,386 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 7975 transitions. [2020-10-15 18:41:43,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 18:41:43,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:43,388 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:43,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:41:43,603 INFO L429 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 18:41:43,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:43,603 INFO L82 PathProgramCache]: Analyzing trace with hash 180724060, now seen corresponding path program 3 times [2020-10-15 18:41:43,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:43,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141013331] [2020-10-15 18:41:43,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:43,658 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 18:41:43,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141013331] [2020-10-15 18:41:43,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945792647] [2020-10-15 18:41:43,659 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:41:43,743 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-15 18:41:43,743 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:41:43,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:41:43,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:41:43,770 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 18:41:43,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:41:43,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:41:43,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921892498] [2020-10-15 18:41:43,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:41:43,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:43,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:41:43,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:41:43,772 INFO L87 Difference]: Start difference. First operand 2085 states and 7975 transitions. Second operand 11 states. [2020-10-15 18:41:44,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:44,288 INFO L93 Difference]: Finished difference Result 5907 states and 18375 transitions. [2020-10-15 18:41:44,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:41:44,288 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 18:41:44,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:44,298 INFO L225 Difference]: With dead ends: 5907 [2020-10-15 18:41:44,298 INFO L226 Difference]: Without dead ends: 5899 [2020-10-15 18:41:44,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:41:44,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5899 states. [2020-10-15 18:41:44,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5899 to 2008. [2020-10-15 18:41:44,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2008 states. [2020-10-15 18:41:44,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 7698 transitions. [2020-10-15 18:41:44,390 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 7698 transitions. Word has length 21 [2020-10-15 18:41:44,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:44,390 INFO L481 AbstractCegarLoop]: Abstraction has 2008 states and 7698 transitions. [2020-10-15 18:41:44,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:41:44,391 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 7698 transitions. [2020-10-15 18:41:44,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 18:41:44,392 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:44,392 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:44,606 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-10-15 18:41:44,607 INFO L429 AbstractCegarLoop]: === Iteration 14 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 18:41:44,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:44,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1783759286, now seen corresponding path program 4 times [2020-10-15 18:41:44,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:44,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998590650] [2020-10-15 18:41:44,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:44,685 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 18:41:44,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998590650] [2020-10-15 18:41:44,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638242185] [2020-10-15 18:41:44,686 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:41:44,828 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 18:41:44,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:41:44,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:41:44,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:41:44,859 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 18:41:44,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:41:44,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:41:44,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360266915] [2020-10-15 18:41:44,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:41:44,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:44,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:41:44,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:41:44,862 INFO L87 Difference]: Start difference. First operand 2008 states and 7698 transitions. Second operand 11 states. [2020-10-15 18:41:45,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:45,416 INFO L93 Difference]: Finished difference Result 5835 states and 18155 transitions. [2020-10-15 18:41:45,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:41:45,417 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 18:41:45,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:45,426 INFO L225 Difference]: With dead ends: 5835 [2020-10-15 18:41:45,426 INFO L226 Difference]: Without dead ends: 5824 [2020-10-15 18:41:45,426 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:41:45,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5824 states. [2020-10-15 18:41:45,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5824 to 1976. [2020-10-15 18:41:45,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1976 states. [2020-10-15 18:41:45,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 7567 transitions. [2020-10-15 18:41:45,508 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 7567 transitions. Word has length 21 [2020-10-15 18:41:45,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:45,508 INFO L481 AbstractCegarLoop]: Abstraction has 1976 states and 7567 transitions. [2020-10-15 18:41:45,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:41:45,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 7567 transitions. [2020-10-15 18:41:45,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 18:41:45,511 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:45,511 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:45,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-10-15 18:41:45,724 INFO L429 AbstractCegarLoop]: === Iteration 15 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 18:41:45,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:45,725 INFO L82 PathProgramCache]: Analyzing trace with hash -964809789, now seen corresponding path program 1 times [2020-10-15 18:41:45,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:45,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991773450] [2020-10-15 18:41:45,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:45,762 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:41:45,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991773450] [2020-10-15 18:41:45,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:45,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:41:45,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673332349] [2020-10-15 18:41:45,763 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:41:45,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:45,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:41:45,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:41:45,764 INFO L87 Difference]: Start difference. First operand 1976 states and 7567 transitions. Second operand 5 states. [2020-10-15 18:41:45,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:45,833 INFO L93 Difference]: Finished difference Result 3016 states and 10840 transitions. [2020-10-15 18:41:45,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:41:45,833 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-15 18:41:45,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:45,837 INFO L225 Difference]: With dead ends: 3016 [2020-10-15 18:41:45,838 INFO L226 Difference]: Without dead ends: 3000 [2020-10-15 18:41:45,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:41:45,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states. [2020-10-15 18:41:45,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 2183. [2020-10-15 18:41:45,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2183 states. [2020-10-15 18:41:45,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2183 states to 2183 states and 8210 transitions. [2020-10-15 18:41:45,884 INFO L78 Accepts]: Start accepts. Automaton has 2183 states and 8210 transitions. Word has length 21 [2020-10-15 18:41:45,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:45,885 INFO L481 AbstractCegarLoop]: Abstraction has 2183 states and 8210 transitions. [2020-10-15 18:41:45,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:41:45,885 INFO L276 IsEmpty]: Start isEmpty. Operand 2183 states and 8210 transitions. [2020-10-15 18:41:45,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 18:41:45,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:45,887 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:45,887 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-15 18:41:45,887 INFO L429 AbstractCegarLoop]: === Iteration 16 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 18:41:45,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:45,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1873231848, now seen corresponding path program 5 times [2020-10-15 18:41:45,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:45,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620421242] [2020-10-15 18:41:45,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:45,951 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:41:45,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620421242] [2020-10-15 18:41:45,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:45,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:41:45,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877428353] [2020-10-15 18:41:45,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:41:45,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:45,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:41:45,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:41:45,953 INFO L87 Difference]: Start difference. First operand 2183 states and 8210 transitions. Second operand 9 states. [2020-10-15 18:41:46,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:46,435 INFO L93 Difference]: Finished difference Result 6150 states and 19247 transitions. [2020-10-15 18:41:46,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:41:46,436 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-15 18:41:46,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:46,446 INFO L225 Difference]: With dead ends: 6150 [2020-10-15 18:41:46,446 INFO L226 Difference]: Without dead ends: 6139 [2020-10-15 18:41:46,447 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:41:46,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6139 states. [2020-10-15 18:41:46,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6139 to 2096. [2020-10-15 18:41:46,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2096 states. [2020-10-15 18:41:46,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2096 states to 2096 states and 7876 transitions. [2020-10-15 18:41:46,538 INFO L78 Accepts]: Start accepts. Automaton has 2096 states and 7876 transitions. Word has length 21 [2020-10-15 18:41:46,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:46,539 INFO L481 AbstractCegarLoop]: Abstraction has 2096 states and 7876 transitions. [2020-10-15 18:41:46,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:41:46,539 INFO L276 IsEmpty]: Start isEmpty. Operand 2096 states and 7876 transitions. [2020-10-15 18:41:46,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 18:41:46,541 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:46,541 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:46,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-15 18:41:46,541 INFO L429 AbstractCegarLoop]: === Iteration 17 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 18:41:46,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:46,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1867041768, now seen corresponding path program 6 times [2020-10-15 18:41:46,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:46,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910991062] [2020-10-15 18:41:46,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:46,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:46,596 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:41:46,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910991062] [2020-10-15 18:41:46,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:46,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:41:46,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892004131] [2020-10-15 18:41:46,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:41:46,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:46,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:41:46,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:41:46,597 INFO L87 Difference]: Start difference. First operand 2096 states and 7876 transitions. Second operand 9 states. [2020-10-15 18:41:47,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:47,179 INFO L93 Difference]: Finished difference Result 6017 states and 18791 transitions. [2020-10-15 18:41:47,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:41:47,179 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-15 18:41:47,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:47,188 INFO L225 Difference]: With dead ends: 6017 [2020-10-15 18:41:47,189 INFO L226 Difference]: Without dead ends: 6002 [2020-10-15 18:41:47,189 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:41:47,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6002 states. [2020-10-15 18:41:47,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6002 to 1965. [2020-10-15 18:41:47,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1965 states. [2020-10-15 18:41:47,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 7429 transitions. [2020-10-15 18:41:47,275 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 7429 transitions. Word has length 21 [2020-10-15 18:41:47,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:47,275 INFO L481 AbstractCegarLoop]: Abstraction has 1965 states and 7429 transitions. [2020-10-15 18:41:47,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:41:47,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 7429 transitions. [2020-10-15 18:41:47,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-15 18:41:47,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:47,277 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:47,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-15 18:41:47,278 INFO L429 AbstractCegarLoop]: === Iteration 18 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 18:41:47,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:47,278 INFO L82 PathProgramCache]: Analyzing trace with hash 150840888, now seen corresponding path program 1 times [2020-10-15 18:41:47,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:47,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904676394] [2020-10-15 18:41:47,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 18:41:47,286 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 18:41:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 18:41:47,293 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 18:41:47,300 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 18:41:47,300 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 18:41:47,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-15 18:41:47,301 WARN L371 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 18:41:47,301 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-10-15 18:41:47,314 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,314 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,315 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,315 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,315 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,315 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,315 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,315 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,315 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,316 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,316 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,316 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,316 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,316 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,316 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,317 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,317 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,317 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,317 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,317 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,317 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,317 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,318 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,318 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,318 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,318 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,318 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,318 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,318 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,319 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,319 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,319 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,319 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,319 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,319 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,319 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,320 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,320 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,320 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,320 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,320 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,320 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,320 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,321 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,321 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,321 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,321 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,321 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,321 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,321 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,322 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,322 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,322 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,322 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,322 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,322 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,323 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,323 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,323 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,323 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,323 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,323 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,323 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,324 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,324 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,324 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,324 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,324 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,324 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,325 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,325 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,325 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,325 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,325 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,325 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,325 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,326 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,326 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,326 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,326 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,326 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,326 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,326 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,327 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,327 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,327 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,327 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,327 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,327 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,327 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,328 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,328 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,328 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,328 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,328 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,328 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,329 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,329 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,329 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,329 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,329 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,329 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,329 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,330 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,330 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,330 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,330 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,330 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,330 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,331 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,332 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,332 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,332 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,332 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,332 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,333 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,334 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,334 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,334 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,334 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,335 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,335 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,335 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,336 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,336 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,337 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,337 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,337 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,337 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,337 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,339 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,339 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,339 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,339 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,339 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,339 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,340 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,341 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,341 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,341 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,341 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,341 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,342 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,343 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,343 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,343 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,343 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,343 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,344 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,345 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,345 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,345 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,345 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,345 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,346 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,346 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,347 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,347 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,347 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,347 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:47,348 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-15 18:41:47,348 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:41:47,349 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:41:47,349 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:41:47,349 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:41:47,349 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:41:47,349 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:41:47,349 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:41:47,349 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:41:47,352 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:41:47,352 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 123 transitions, 336 flow [2020-10-15 18:41:47,352 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 123 transitions, 336 flow [2020-10-15 18:41:47,352 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 139 places, 123 transitions, 336 flow [2020-10-15 18:41:47,402 INFO L129 PetriNetUnfolder]: 7/149 cut-off events. [2020-10-15 18:41:47,403 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-15 18:41:47,405 INFO L80 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 149 events. 7/149 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 256 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 176. Up to 12 conditions per place. [2020-10-15 18:41:47,412 INFO L117 LiptonReduction]: Number of co-enabled transitions 2860 [2020-10-15 18:41:49,177 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-15 18:41:49,245 INFO L132 LiptonReduction]: Checked pairs total: 4168 [2020-10-15 18:41:49,245 INFO L134 LiptonReduction]: Total number of compositions: 121 [2020-10-15 18:41:49,246 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 39 transitions, 168 flow [2020-10-15 18:41:49,636 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6191 states. [2020-10-15 18:41:49,636 INFO L276 IsEmpty]: Start isEmpty. Operand 6191 states. [2020-10-15 18:41:49,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-15 18:41:49,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:49,637 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-15 18:41:49,637 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:49,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:49,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1011964, now seen corresponding path program 1 times [2020-10-15 18:41:49,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:49,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712206144] [2020-10-15 18:41:49,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:49,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:49,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:49,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712206144] [2020-10-15 18:41:49,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:49,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:41:49,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619744102] [2020-10-15 18:41:49,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:41:49,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:49,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:41:49,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:41:49,678 INFO L87 Difference]: Start difference. First operand 6191 states. Second operand 3 states. [2020-10-15 18:41:49,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:49,742 INFO L93 Difference]: Finished difference Result 5844 states and 26316 transitions. [2020-10-15 18:41:49,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:41:49,742 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-15 18:41:49,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:49,755 INFO L225 Difference]: With dead ends: 5844 [2020-10-15 18:41:49,755 INFO L226 Difference]: Without dead ends: 5479 [2020-10-15 18:41:49,755 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:41:49,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5479 states. [2020-10-15 18:41:49,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5479 to 5479. [2020-10-15 18:41:49,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-10-15 18:41:49,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 24493 transitions. [2020-10-15 18:41:49,899 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 24493 transitions. Word has length 3 [2020-10-15 18:41:49,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:49,899 INFO L481 AbstractCegarLoop]: Abstraction has 5479 states and 24493 transitions. [2020-10-15 18:41:49,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:41:49,900 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 24493 transitions. [2020-10-15 18:41:49,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 18:41:49,900 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:49,900 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:49,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-15 18:41:49,900 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:49,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:49,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1084774388, now seen corresponding path program 1 times [2020-10-15 18:41:49,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:49,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123260988] [2020-10-15 18:41:49,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:49,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:49,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:49,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123260988] [2020-10-15 18:41:49,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:49,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:41:49,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035277879] [2020-10-15 18:41:49,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:41:49,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:49,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:41:49,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:41:49,926 INFO L87 Difference]: Start difference. First operand 5479 states and 24493 transitions. Second operand 5 states. [2020-10-15 18:41:50,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:50,034 INFO L93 Difference]: Finished difference Result 9673 states and 40333 transitions. [2020-10-15 18:41:50,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:41:50,034 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-15 18:41:50,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:50,055 INFO L225 Difference]: With dead ends: 9673 [2020-10-15 18:41:50,056 INFO L226 Difference]: Without dead ends: 9666 [2020-10-15 18:41:50,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:41:50,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9666 states. [2020-10-15 18:41:50,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9666 to 6331. [2020-10-15 18:41:50,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6331 states. [2020-10-15 18:41:50,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6331 states to 6331 states and 28544 transitions. [2020-10-15 18:41:50,258 INFO L78 Accepts]: Start accepts. Automaton has 6331 states and 28544 transitions. Word has length 9 [2020-10-15 18:41:50,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:50,258 INFO L481 AbstractCegarLoop]: Abstraction has 6331 states and 28544 transitions. [2020-10-15 18:41:50,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:41:50,259 INFO L276 IsEmpty]: Start isEmpty. Operand 6331 states and 28544 transitions. [2020-10-15 18:41:50,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:41:50,259 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:50,259 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:50,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-15 18:41:50,259 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:50,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:50,260 INFO L82 PathProgramCache]: Analyzing trace with hash 2112403116, now seen corresponding path program 1 times [2020-10-15 18:41:50,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:50,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548768339] [2020-10-15 18:41:50,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:50,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:50,288 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 18:41:50,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548768339] [2020-10-15 18:41:50,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:50,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:41:50,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248244422] [2020-10-15 18:41:50,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:41:50,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:50,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:41:50,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:41:50,290 INFO L87 Difference]: Start difference. First operand 6331 states and 28544 transitions. Second operand 5 states. [2020-10-15 18:41:50,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:50,429 INFO L93 Difference]: Finished difference Result 11081 states and 46826 transitions. [2020-10-15 18:41:50,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:41:50,429 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 18:41:50,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:50,467 INFO L225 Difference]: With dead ends: 11081 [2020-10-15 18:41:50,467 INFO L226 Difference]: Without dead ends: 11068 [2020-10-15 18:41:50,467 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:41:50,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11068 states. [2020-10-15 18:41:50,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11068 to 7391. [2020-10-15 18:41:50,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7391 states. [2020-10-15 18:41:50,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7391 states to 7391 states and 33694 transitions. [2020-10-15 18:41:50,864 INFO L78 Accepts]: Start accepts. Automaton has 7391 states and 33694 transitions. Word has length 13 [2020-10-15 18:41:50,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:50,865 INFO L481 AbstractCegarLoop]: Abstraction has 7391 states and 33694 transitions. [2020-10-15 18:41:50,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:41:50,865 INFO L276 IsEmpty]: Start isEmpty. Operand 7391 states and 33694 transitions. [2020-10-15 18:41:50,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:41:50,865 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:50,866 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:50,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-15 18:41:50,866 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:50,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:50,866 INFO L82 PathProgramCache]: Analyzing trace with hash -28983895, now seen corresponding path program 1 times [2020-10-15 18:41:50,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:50,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901446745] [2020-10-15 18:41:50,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:50,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:50,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901446745] [2020-10-15 18:41:50,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430513572] [2020-10-15 18:41:50,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:41:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:50,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 18:41:50,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:41:50,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:50,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:41:50,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 18:41:50,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310035342] [2020-10-15 18:41:50,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:41:50,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:50,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:41:50,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:41:50,988 INFO L87 Difference]: Start difference. First operand 7391 states and 33694 transitions. Second operand 9 states. [2020-10-15 18:41:51,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:51,258 INFO L93 Difference]: Finished difference Result 16749 states and 66010 transitions. [2020-10-15 18:41:51,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:41:51,259 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-10-15 18:41:51,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:51,296 INFO L225 Difference]: With dead ends: 16749 [2020-10-15 18:41:51,297 INFO L226 Difference]: Without dead ends: 16736 [2020-10-15 18:41:51,297 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 18:41:51,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16736 states. [2020-10-15 18:41:51,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16736 to 7303. [2020-10-15 18:41:51,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7303 states. [2020-10-15 18:41:51,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7303 states to 7303 states and 33260 transitions. [2020-10-15 18:41:51,581 INFO L78 Accepts]: Start accepts. Automaton has 7303 states and 33260 transitions. Word has length 15 [2020-10-15 18:41:51,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:51,582 INFO L481 AbstractCegarLoop]: Abstraction has 7303 states and 33260 transitions. [2020-10-15 18:41:51,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:41:51,582 INFO L276 IsEmpty]: Start isEmpty. Operand 7303 states and 33260 transitions. [2020-10-15 18:41:51,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:41:51,582 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:51,582 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:51,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:41:51,794 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:51,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:51,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1500121559, now seen corresponding path program 2 times [2020-10-15 18:41:51,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:51,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285359185] [2020-10-15 18:41:51,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:51,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 18:41:51,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285359185] [2020-10-15 18:41:51,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:51,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:41:51,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222277810] [2020-10-15 18:41:51,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:41:51,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:51,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:41:51,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:41:51,837 INFO L87 Difference]: Start difference. First operand 7303 states and 33260 transitions. Second operand 7 states. [2020-10-15 18:41:52,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:52,096 INFO L93 Difference]: Finished difference Result 17085 states and 67393 transitions. [2020-10-15 18:41:52,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:41:52,096 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-15 18:41:52,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:52,134 INFO L225 Difference]: With dead ends: 17085 [2020-10-15 18:41:52,135 INFO L226 Difference]: Without dead ends: 17071 [2020-10-15 18:41:52,135 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:41:52,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17071 states. [2020-10-15 18:41:52,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17071 to 7048. [2020-10-15 18:41:52,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7048 states. [2020-10-15 18:41:52,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7048 states to 7048 states and 32136 transitions. [2020-10-15 18:41:52,597 INFO L78 Accepts]: Start accepts. Automaton has 7048 states and 32136 transitions. Word has length 15 [2020-10-15 18:41:52,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:52,597 INFO L481 AbstractCegarLoop]: Abstraction has 7048 states and 32136 transitions. [2020-10-15 18:41:52,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:41:52,598 INFO L276 IsEmpty]: Start isEmpty. Operand 7048 states and 32136 transitions. [2020-10-15 18:41:52,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 18:41:52,598 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:52,599 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:52,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-15 18:41:52,599 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:52,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:52,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1891696605, now seen corresponding path program 1 times [2020-10-15 18:41:52,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:52,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025144495] [2020-10-15 18:41:52,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:52,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:52,622 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:41:52,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025144495] [2020-10-15 18:41:52,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:52,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:41:52,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618040576] [2020-10-15 18:41:52,623 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:41:52,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:52,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:41:52,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:41:52,623 INFO L87 Difference]: Start difference. First operand 7048 states and 32136 transitions. Second operand 5 states. [2020-10-15 18:41:52,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:52,768 INFO L93 Difference]: Finished difference Result 12234 states and 52488 transitions. [2020-10-15 18:41:52,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:41:52,769 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-15 18:41:52,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:52,796 INFO L225 Difference]: With dead ends: 12234 [2020-10-15 18:41:52,796 INFO L226 Difference]: Without dead ends: 12212 [2020-10-15 18:41:52,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:41:52,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12212 states. [2020-10-15 18:41:53,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12212 to 8342. [2020-10-15 18:41:53,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8342 states. [2020-10-15 18:41:53,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8342 states to 8342 states and 38278 transitions. [2020-10-15 18:41:53,035 INFO L78 Accepts]: Start accepts. Automaton has 8342 states and 38278 transitions. Word has length 17 [2020-10-15 18:41:53,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:53,036 INFO L481 AbstractCegarLoop]: Abstraction has 8342 states and 38278 transitions. [2020-10-15 18:41:53,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:41:53,036 INFO L276 IsEmpty]: Start isEmpty. Operand 8342 states and 38278 transitions. [2020-10-15 18:41:53,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 18:41:53,038 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:53,038 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:53,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-15 18:41:53,038 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:53,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:53,039 INFO L82 PathProgramCache]: Analyzing trace with hash -74039136, now seen corresponding path program 1 times [2020-10-15 18:41:53,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:53,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124742750] [2020-10-15 18:41:53,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:53,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:53,070 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 18:41:53,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124742750] [2020-10-15 18:41:53,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501872599] [2020-10-15 18:41:53,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:41:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:53,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 18:41:53,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:41:53,163 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 18:41:53,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:41:53,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 18:41:53,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062333323] [2020-10-15 18:41:53,164 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:41:53,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:53,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:41:53,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:41:53,165 INFO L87 Difference]: Start difference. First operand 8342 states and 38278 transitions. Second operand 9 states. [2020-10-15 18:41:53,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:53,422 INFO L93 Difference]: Finished difference Result 19016 states and 76191 transitions. [2020-10-15 18:41:53,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:41:53,423 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-10-15 18:41:53,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:53,463 INFO L225 Difference]: With dead ends: 19016 [2020-10-15 18:41:53,464 INFO L226 Difference]: Without dead ends: 18998 [2020-10-15 18:41:53,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 18:41:53,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18998 states. [2020-10-15 18:41:53,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18998 to 8452. [2020-10-15 18:41:53,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8452 states. [2020-10-15 18:41:54,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8452 states to 8452 states and 38704 transitions. [2020-10-15 18:41:54,862 INFO L78 Accepts]: Start accepts. Automaton has 8452 states and 38704 transitions. Word has length 19 [2020-10-15 18:41:54,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:54,862 INFO L481 AbstractCegarLoop]: Abstraction has 8452 states and 38704 transitions. [2020-10-15 18:41:54,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:41:54,862 INFO L276 IsEmpty]: Start isEmpty. Operand 8452 states and 38704 transitions. [2020-10-15 18:41:54,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 18:41:54,863 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:54,863 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:55,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2020-10-15 18:41:55,076 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:55,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:55,077 INFO L82 PathProgramCache]: Analyzing trace with hash -274460668, now seen corresponding path program 1 times [2020-10-15 18:41:55,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:55,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828898443] [2020-10-15 18:41:55,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:55,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:55,117 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 18:41:55,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828898443] [2020-10-15 18:41:55,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033920974] [2020-10-15 18:41:55,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:41:55,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:55,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 18:41:55,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:41:55,209 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 18:41:55,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:41:55,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 18:41:55,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112751635] [2020-10-15 18:41:55,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:41:55,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:55,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:41:55,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:41:55,210 INFO L87 Difference]: Start difference. First operand 8452 states and 38704 transitions. Second operand 9 states. [2020-10-15 18:41:55,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:55,537 INFO L93 Difference]: Finished difference Result 19670 states and 79028 transitions. [2020-10-15 18:41:55,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:41:55,538 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-10-15 18:41:55,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:55,611 INFO L225 Difference]: With dead ends: 19670 [2020-10-15 18:41:55,612 INFO L226 Difference]: Without dead ends: 19645 [2020-10-15 18:41:55,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 18:41:55,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19645 states. [2020-10-15 18:41:56,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19645 to 8480. [2020-10-15 18:41:56,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8480 states. [2020-10-15 18:41:56,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8480 states to 8480 states and 38825 transitions. [2020-10-15 18:41:56,111 INFO L78 Accepts]: Start accepts. Automaton has 8480 states and 38825 transitions. Word has length 19 [2020-10-15 18:41:56,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:56,112 INFO L481 AbstractCegarLoop]: Abstraction has 8480 states and 38825 transitions. [2020-10-15 18:41:56,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:41:56,112 INFO L276 IsEmpty]: Start isEmpty. Operand 8480 states and 38825 transitions. [2020-10-15 18:41:56,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 18:41:56,113 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:56,114 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:56,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2020-10-15 18:41:56,327 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:56,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:56,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1149256224, now seen corresponding path program 2 times [2020-10-15 18:41:56,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:56,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947621131] [2020-10-15 18:41:56,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:56,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:56,371 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:41:56,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947621131] [2020-10-15 18:41:56,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:56,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:41:56,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129353761] [2020-10-15 18:41:56,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:41:56,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:56,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:41:56,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:41:56,373 INFO L87 Difference]: Start difference. First operand 8480 states and 38825 transitions. Second operand 7 states. [2020-10-15 18:41:56,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:56,663 INFO L93 Difference]: Finished difference Result 19852 states and 79846 transitions. [2020-10-15 18:41:56,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:41:56,663 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 18:41:56,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:56,732 INFO L225 Difference]: With dead ends: 19852 [2020-10-15 18:41:56,733 INFO L226 Difference]: Without dead ends: 19827 [2020-10-15 18:41:56,735 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:41:56,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19827 states. [2020-10-15 18:41:57,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19827 to 8379. [2020-10-15 18:41:57,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8379 states. [2020-10-15 18:41:57,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8379 states to 8379 states and 38406 transitions. [2020-10-15 18:41:57,316 INFO L78 Accepts]: Start accepts. Automaton has 8379 states and 38406 transitions. Word has length 19 [2020-10-15 18:41:57,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:57,316 INFO L481 AbstractCegarLoop]: Abstraction has 8379 states and 38406 transitions. [2020-10-15 18:41:57,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:41:57,317 INFO L276 IsEmpty]: Start isEmpty. Operand 8379 states and 38406 transitions. [2020-10-15 18:41:57,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 18:41:57,317 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:57,317 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:57,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-15 18:41:57,318 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:57,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:57,318 INFO L82 PathProgramCache]: Analyzing trace with hash -1149271290, now seen corresponding path program 2 times [2020-10-15 18:41:57,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:57,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362701953] [2020-10-15 18:41:57,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:57,361 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:41:57,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362701953] [2020-10-15 18:41:57,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:57,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:41:57,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50838529] [2020-10-15 18:41:57,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:41:57,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:57,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:41:57,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:41:57,363 INFO L87 Difference]: Start difference. First operand 8379 states and 38406 transitions. Second operand 7 states. [2020-10-15 18:41:57,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:57,623 INFO L93 Difference]: Finished difference Result 19555 states and 78564 transitions. [2020-10-15 18:41:57,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:41:57,624 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 18:41:57,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:57,664 INFO L225 Difference]: With dead ends: 19555 [2020-10-15 18:41:57,664 INFO L226 Difference]: Without dead ends: 19530 [2020-10-15 18:41:57,664 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:41:57,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19530 states. [2020-10-15 18:41:57,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19530 to 8317. [2020-10-15 18:41:57,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8317 states. [2020-10-15 18:41:57,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8317 states to 8317 states and 38184 transitions. [2020-10-15 18:41:57,990 INFO L78 Accepts]: Start accepts. Automaton has 8317 states and 38184 transitions. Word has length 19 [2020-10-15 18:41:57,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:57,990 INFO L481 AbstractCegarLoop]: Abstraction has 8317 states and 38184 transitions. [2020-10-15 18:41:57,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:41:57,990 INFO L276 IsEmpty]: Start isEmpty. Operand 8317 states and 38184 transitions. [2020-10-15 18:41:57,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 18:41:57,992 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:57,992 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:57,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-15 18:41:57,992 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:57,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:57,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1557322431, now seen corresponding path program 1 times [2020-10-15 18:41:57,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:57,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926820354] [2020-10-15 18:41:57,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:58,040 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:58,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926820354] [2020-10-15 18:41:58,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003959310] [2020-10-15 18:41:58,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:41:58,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:58,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:41:58,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:41:58,140 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:58,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:41:58,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:41:58,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286479367] [2020-10-15 18:41:58,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:41:58,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:58,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:41:58,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:41:58,142 INFO L87 Difference]: Start difference. First operand 8317 states and 38184 transitions. Second operand 11 states. [2020-10-15 18:41:58,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:58,782 INFO L93 Difference]: Finished difference Result 26969 states and 101544 transitions. [2020-10-15 18:41:58,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:41:58,782 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 18:41:58,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:58,841 INFO L225 Difference]: With dead ends: 26969 [2020-10-15 18:41:58,841 INFO L226 Difference]: Without dead ends: 26957 [2020-10-15 18:41:58,841 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:41:58,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26957 states. [2020-10-15 18:41:59,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26957 to 8204. [2020-10-15 18:41:59,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8204 states. [2020-10-15 18:41:59,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8204 states to 8204 states and 37628 transitions. [2020-10-15 18:41:59,217 INFO L78 Accepts]: Start accepts. Automaton has 8204 states and 37628 transitions. Word has length 21 [2020-10-15 18:41:59,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:59,217 INFO L481 AbstractCegarLoop]: Abstraction has 8204 states and 37628 transitions. [2020-10-15 18:41:59,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:41:59,217 INFO L276 IsEmpty]: Start isEmpty. Operand 8204 states and 37628 transitions. [2020-10-15 18:41:59,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 18:41:59,224 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:59,224 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:59,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:41:59,439 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:59,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:59,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1862834243, now seen corresponding path program 2 times [2020-10-15 18:41:59,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:59,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749525533] [2020-10-15 18:41:59,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:59,489 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 18:41:59,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749525533] [2020-10-15 18:41:59,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484208583] [2020-10-15 18:41:59,490 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:41:59,704 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 18:41:59,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:41:59,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:41:59,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:41:59,730 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 18:41:59,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:41:59,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:41:59,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740563782] [2020-10-15 18:41:59,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:41:59,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:59,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:41:59,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:41:59,736 INFO L87 Difference]: Start difference. First operand 8204 states and 37628 transitions. Second operand 11 states. [2020-10-15 18:42:00,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:00,516 INFO L93 Difference]: Finished difference Result 26661 states and 100277 transitions. [2020-10-15 18:42:00,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:42:00,517 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 18:42:00,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:00,617 INFO L225 Difference]: With dead ends: 26661 [2020-10-15 18:42:00,617 INFO L226 Difference]: Without dead ends: 26645 [2020-10-15 18:42:00,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:42:00,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26645 states. [2020-10-15 18:42:01,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26645 to 8091. [2020-10-15 18:42:01,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8091 states. [2020-10-15 18:42:01,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8091 states to 8091 states and 37076 transitions. [2020-10-15 18:42:01,064 INFO L78 Accepts]: Start accepts. Automaton has 8091 states and 37076 transitions. Word has length 21 [2020-10-15 18:42:01,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:01,064 INFO L481 AbstractCegarLoop]: Abstraction has 8091 states and 37076 transitions. [2020-10-15 18:42:01,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:42:01,064 INFO L276 IsEmpty]: Start isEmpty. Operand 8091 states and 37076 transitions. [2020-10-15 18:42:01,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 18:42:01,066 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:01,066 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:01,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2020-10-15 18:42:01,267 INFO L429 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:01,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:01,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1769991039, now seen corresponding path program 3 times [2020-10-15 18:42:01,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:01,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372966195] [2020-10-15 18:42:01,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:01,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:01,319 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 18:42:01,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372966195] [2020-10-15 18:42:01,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488925422] [2020-10-15 18:42:01,319 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:42:01,395 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-15 18:42:01,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:42:01,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:42:01,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:42:01,438 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 18:42:01,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:42:01,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:42:01,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419799448] [2020-10-15 18:42:01,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:42:01,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:01,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:42:01,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:42:01,442 INFO L87 Difference]: Start difference. First operand 8091 states and 37076 transitions. Second operand 11 states. [2020-10-15 18:42:02,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:02,097 INFO L93 Difference]: Finished difference Result 26686 states and 100402 transitions. [2020-10-15 18:42:02,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:42:02,097 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 18:42:02,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:02,165 INFO L225 Difference]: With dead ends: 26686 [2020-10-15 18:42:02,165 INFO L226 Difference]: Without dead ends: 26674 [2020-10-15 18:42:02,165 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:42:02,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26674 states. [2020-10-15 18:42:02,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26674 to 7861. [2020-10-15 18:42:02,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7861 states. [2020-10-15 18:42:02,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7861 states to 7861 states and 36066 transitions. [2020-10-15 18:42:02,699 INFO L78 Accepts]: Start accepts. Automaton has 7861 states and 36066 transitions. Word has length 21 [2020-10-15 18:42:02,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:02,700 INFO L481 AbstractCegarLoop]: Abstraction has 7861 states and 36066 transitions. [2020-10-15 18:42:02,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:42:02,700 INFO L276 IsEmpty]: Start isEmpty. Operand 7861 states and 36066 transitions. [2020-10-15 18:42:02,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 18:42:02,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:02,701 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:02,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:42:02,902 INFO L429 AbstractCegarLoop]: === Iteration 14 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:02,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:02,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1763681919, now seen corresponding path program 4 times [2020-10-15 18:42:02,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:02,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476623683] [2020-10-15 18:42:02,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:02,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:02,954 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 18:42:02,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476623683] [2020-10-15 18:42:02,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673366736] [2020-10-15 18:42:02,955 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:42:03,034 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 18:42:03,034 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:42:03,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:42:03,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:42:03,058 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 18:42:03,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:42:03,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:42:03,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271953225] [2020-10-15 18:42:03,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:42:03,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:03,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:42:03,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:42:03,059 INFO L87 Difference]: Start difference. First operand 7861 states and 36066 transitions. Second operand 11 states. [2020-10-15 18:42:03,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:03,699 INFO L93 Difference]: Finished difference Result 26489 states and 99650 transitions. [2020-10-15 18:42:03,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:42:03,700 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 18:42:03,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:03,766 INFO L225 Difference]: With dead ends: 26489 [2020-10-15 18:42:03,767 INFO L226 Difference]: Without dead ends: 26473 [2020-10-15 18:42:03,767 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:42:03,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26473 states. [2020-10-15 18:42:04,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26473 to 7748. [2020-10-15 18:42:04,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7748 states. [2020-10-15 18:42:04,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7748 states to 7748 states and 35514 transitions. [2020-10-15 18:42:04,116 INFO L78 Accepts]: Start accepts. Automaton has 7748 states and 35514 transitions. Word has length 21 [2020-10-15 18:42:04,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:04,116 INFO L481 AbstractCegarLoop]: Abstraction has 7748 states and 35514 transitions. [2020-10-15 18:42:04,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:42:04,116 INFO L276 IsEmpty]: Start isEmpty. Operand 7748 states and 35514 transitions. [2020-10-15 18:42:04,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 18:42:04,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:04,117 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:04,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2020-10-15 18:42:04,318 INFO L429 AbstractCegarLoop]: === Iteration 15 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:04,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:04,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1774143127, now seen corresponding path program 1 times [2020-10-15 18:42:04,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:04,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792061777] [2020-10-15 18:42:04,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:04,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:04,348 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:42:04,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792061777] [2020-10-15 18:42:04,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:42:04,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:42:04,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746870002] [2020-10-15 18:42:04,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:42:04,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:04,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:42:04,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:42:04,350 INFO L87 Difference]: Start difference. First operand 7748 states and 35514 transitions. Second operand 5 states. [2020-10-15 18:42:04,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:04,474 INFO L93 Difference]: Finished difference Result 13251 states and 57501 transitions. [2020-10-15 18:42:04,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:42:04,475 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-15 18:42:04,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:04,505 INFO L225 Difference]: With dead ends: 13251 [2020-10-15 18:42:04,506 INFO L226 Difference]: Without dead ends: 13220 [2020-10-15 18:42:04,506 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:42:04,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13220 states. [2020-10-15 18:42:04,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13220 to 9255. [2020-10-15 18:42:04,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9255 states. [2020-10-15 18:42:04,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9255 states to 9255 states and 42368 transitions. [2020-10-15 18:42:04,768 INFO L78 Accepts]: Start accepts. Automaton has 9255 states and 42368 transitions. Word has length 21 [2020-10-15 18:42:04,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:04,768 INFO L481 AbstractCegarLoop]: Abstraction has 9255 states and 42368 transitions. [2020-10-15 18:42:04,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:42:04,769 INFO L276 IsEmpty]: Start isEmpty. Operand 9255 states and 42368 transitions. [2020-10-15 18:42:04,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 18:42:04,769 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:04,770 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:04,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-15 18:42:04,770 INFO L429 AbstractCegarLoop]: === Iteration 16 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:04,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:04,770 INFO L82 PathProgramCache]: Analyzing trace with hash -628636285, now seen corresponding path program 5 times [2020-10-15 18:42:04,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:04,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985147777] [2020-10-15 18:42:04,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:04,818 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:42:04,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985147777] [2020-10-15 18:42:04,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:42:04,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:42:04,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472035395] [2020-10-15 18:42:04,819 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:42:04,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:04,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:42:04,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:42:04,820 INFO L87 Difference]: Start difference. First operand 9255 states and 42368 transitions. Second operand 9 states. [2020-10-15 18:42:05,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:05,483 INFO L93 Difference]: Finished difference Result 29788 states and 113841 transitions. [2020-10-15 18:42:05,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:42:05,484 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-15 18:42:05,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:05,581 INFO L225 Difference]: With dead ends: 29788 [2020-10-15 18:42:05,581 INFO L226 Difference]: Without dead ends: 29770 [2020-10-15 18:42:05,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:42:05,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29770 states. [2020-10-15 18:42:06,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29770 to 8964. [2020-10-15 18:42:06,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8964 states. [2020-10-15 18:42:06,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8964 states to 8964 states and 41031 transitions. [2020-10-15 18:42:06,162 INFO L78 Accepts]: Start accepts. Automaton has 8964 states and 41031 transitions. Word has length 21 [2020-10-15 18:42:06,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:06,163 INFO L481 AbstractCegarLoop]: Abstraction has 8964 states and 41031 transitions. [2020-10-15 18:42:06,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:42:06,163 INFO L276 IsEmpty]: Start isEmpty. Operand 8964 states and 41031 transitions. [2020-10-15 18:42:06,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 18:42:06,164 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:06,164 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:06,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-15 18:42:06,165 INFO L429 AbstractCegarLoop]: === Iteration 17 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:06,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:06,165 INFO L82 PathProgramCache]: Analyzing trace with hash -643099645, now seen corresponding path program 6 times [2020-10-15 18:42:06,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:06,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036075767] [2020-10-15 18:42:06,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:06,219 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:42:06,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036075767] [2020-10-15 18:42:06,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:42:06,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:42:06,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663229846] [2020-10-15 18:42:06,221 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:42:06,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:06,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:42:06,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:42:06,222 INFO L87 Difference]: Start difference. First operand 8964 states and 41031 transitions. Second operand 9 states. [2020-10-15 18:42:06,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:06,890 INFO L93 Difference]: Finished difference Result 29379 states and 112099 transitions. [2020-10-15 18:42:06,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:42:06,891 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-15 18:42:06,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:06,953 INFO L225 Difference]: With dead ends: 29379 [2020-10-15 18:42:06,953 INFO L226 Difference]: Without dead ends: 29356 [2020-10-15 18:42:06,954 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:42:07,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29356 states. [2020-10-15 18:42:07,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29356 to 8573. [2020-10-15 18:42:07,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8573 states. [2020-10-15 18:42:07,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8573 states to 8573 states and 39353 transitions. [2020-10-15 18:42:07,386 INFO L78 Accepts]: Start accepts. Automaton has 8573 states and 39353 transitions. Word has length 21 [2020-10-15 18:42:07,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:07,386 INFO L481 AbstractCegarLoop]: Abstraction has 8573 states and 39353 transitions. [2020-10-15 18:42:07,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:42:07,387 INFO L276 IsEmpty]: Start isEmpty. Operand 8573 states and 39353 transitions. [2020-10-15 18:42:07,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 18:42:07,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:07,388 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:07,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-15 18:42:07,388 INFO L429 AbstractCegarLoop]: === Iteration 18 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:07,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:07,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1599602836, now seen corresponding path program 1 times [2020-10-15 18:42:07,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:07,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168865620] [2020-10-15 18:42:07,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:07,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:07,424 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:42:07,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168865620] [2020-10-15 18:42:07,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949238290] [2020-10-15 18:42:07,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:42:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:07,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 18:42:07,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:42:07,523 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:42:07,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:42:07,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 18:42:07,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515711619] [2020-10-15 18:42:07,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:42:07,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:07,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:42:07,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:42:07,524 INFO L87 Difference]: Start difference. First operand 8573 states and 39353 transitions. Second operand 9 states. [2020-10-15 18:42:07,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:07,831 INFO L93 Difference]: Finished difference Result 19727 states and 80274 transitions. [2020-10-15 18:42:07,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:42:07,832 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-15 18:42:07,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:07,873 INFO L225 Difference]: With dead ends: 19727 [2020-10-15 18:42:07,873 INFO L226 Difference]: Without dead ends: 19703 [2020-10-15 18:42:07,874 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 18:42:07,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19703 states. [2020-10-15 18:42:08,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19703 to 8847. [2020-10-15 18:42:08,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8847 states. [2020-10-15 18:42:08,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8847 states to 8847 states and 40495 transitions. [2020-10-15 18:42:08,183 INFO L78 Accepts]: Start accepts. Automaton has 8847 states and 40495 transitions. Word has length 23 [2020-10-15 18:42:08,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:08,183 INFO L481 AbstractCegarLoop]: Abstraction has 8847 states and 40495 transitions. [2020-10-15 18:42:08,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:42:08,183 INFO L276 IsEmpty]: Start isEmpty. Operand 8847 states and 40495 transitions. [2020-10-15 18:42:08,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 18:42:08,185 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:08,185 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:08,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2020-10-15 18:42:08,394 INFO L429 AbstractCegarLoop]: === Iteration 19 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:08,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:08,395 INFO L82 PathProgramCache]: Analyzing trace with hash 72758744, now seen corresponding path program 1 times [2020-10-15 18:42:08,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:08,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856348222] [2020-10-15 18:42:08,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:08,431 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-15 18:42:08,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856348222] [2020-10-15 18:42:08,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865272505] [2020-10-15 18:42:08,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:42:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:08,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 18:42:08,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:42:08,522 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-15 18:42:08,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:42:08,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 18:42:08,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281581280] [2020-10-15 18:42:08,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:42:08,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:08,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:42:08,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:42:08,524 INFO L87 Difference]: Start difference. First operand 8847 states and 40495 transitions. Second operand 9 states. [2020-10-15 18:42:08,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:08,890 INFO L93 Difference]: Finished difference Result 20694 states and 84261 transitions. [2020-10-15 18:42:08,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:42:08,891 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-15 18:42:08,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:08,935 INFO L225 Difference]: With dead ends: 20694 [2020-10-15 18:42:08,935 INFO L226 Difference]: Without dead ends: 20666 [2020-10-15 18:42:08,935 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 18:42:09,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20666 states. [2020-10-15 18:42:09,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20666 to 9115. [2020-10-15 18:42:09,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9115 states. [2020-10-15 18:42:09,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9115 states to 9115 states and 41679 transitions. [2020-10-15 18:42:09,258 INFO L78 Accepts]: Start accepts. Automaton has 9115 states and 41679 transitions. Word has length 23 [2020-10-15 18:42:09,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:09,258 INFO L481 AbstractCegarLoop]: Abstraction has 9115 states and 41679 transitions. [2020-10-15 18:42:09,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:42:09,258 INFO L276 IsEmpty]: Start isEmpty. Operand 9115 states and 41679 transitions. [2020-10-15 18:42:09,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 18:42:09,260 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:09,260 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:09,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:42:09,461 INFO L429 AbstractCegarLoop]: === Iteration 20 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:09,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:09,461 INFO L82 PathProgramCache]: Analyzing trace with hash -328675496, now seen corresponding path program 1 times [2020-10-15 18:42:09,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:09,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940787326] [2020-10-15 18:42:09,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:09,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:09,498 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 18:42:09,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940787326] [2020-10-15 18:42:09,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842357650] [2020-10-15 18:42:09,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:42:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:09,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 18:42:09,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:42:09,611 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 18:42:09,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:42:09,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 18:42:09,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235076542] [2020-10-15 18:42:09,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:42:09,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:09,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:42:09,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:42:09,614 INFO L87 Difference]: Start difference. First operand 9115 states and 41679 transitions. Second operand 9 states. [2020-10-15 18:42:09,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:09,913 INFO L93 Difference]: Finished difference Result 21396 states and 87360 transitions. [2020-10-15 18:42:09,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:42:09,914 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-15 18:42:09,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:09,959 INFO L225 Difference]: With dead ends: 21396 [2020-10-15 18:42:09,960 INFO L226 Difference]: Without dead ends: 21359 [2020-10-15 18:42:09,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 18:42:10,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21359 states. [2020-10-15 18:42:10,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21359 to 9320. [2020-10-15 18:42:10,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9320 states. [2020-10-15 18:42:10,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9320 states to 9320 states and 42648 transitions. [2020-10-15 18:42:10,311 INFO L78 Accepts]: Start accepts. Automaton has 9320 states and 42648 transitions. Word has length 23 [2020-10-15 18:42:10,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:10,311 INFO L481 AbstractCegarLoop]: Abstraction has 9320 states and 42648 transitions. [2020-10-15 18:42:10,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:42:10,312 INFO L276 IsEmpty]: Start isEmpty. Operand 9320 states and 42648 transitions. [2020-10-15 18:42:10,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 18:42:10,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:10,314 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:10,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2020-10-15 18:42:10,524 INFO L429 AbstractCegarLoop]: === Iteration 21 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:10,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:10,524 INFO L82 PathProgramCache]: Analyzing trace with hash -150456492, now seen corresponding path program 2 times [2020-10-15 18:42:10,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:10,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18650088] [2020-10-15 18:42:10,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:10,573 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:42:10,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18650088] [2020-10-15 18:42:10,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:42:10,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:42:10,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361793571] [2020-10-15 18:42:10,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:42:10,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:10,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:42:10,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:42:10,575 INFO L87 Difference]: Start difference. First operand 9320 states and 42648 transitions. Second operand 7 states. [2020-10-15 18:42:10,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:10,845 INFO L93 Difference]: Finished difference Result 21489 states and 87752 transitions. [2020-10-15 18:42:10,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:42:10,845 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-15 18:42:10,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:10,891 INFO L225 Difference]: With dead ends: 21489 [2020-10-15 18:42:10,891 INFO L226 Difference]: Without dead ends: 21452 [2020-10-15 18:42:10,891 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:42:11,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21452 states. [2020-10-15 18:42:11,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21452 to 9401. [2020-10-15 18:42:11,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9401 states. [2020-10-15 18:42:11,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9401 states to 9401 states and 43010 transitions. [2020-10-15 18:42:11,225 INFO L78 Accepts]: Start accepts. Automaton has 9401 states and 43010 transitions. Word has length 23 [2020-10-15 18:42:11,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:11,225 INFO L481 AbstractCegarLoop]: Abstraction has 9401 states and 43010 transitions. [2020-10-15 18:42:11,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:42:11,226 INFO L276 IsEmpty]: Start isEmpty. Operand 9401 states and 43010 transitions. [2020-10-15 18:42:11,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 18:42:11,228 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:11,228 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:11,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2020-10-15 18:42:11,228 INFO L429 AbstractCegarLoop]: === Iteration 22 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:11,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:11,228 INFO L82 PathProgramCache]: Analyzing trace with hash -150471558, now seen corresponding path program 2 times [2020-10-15 18:42:11,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:11,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596561470] [2020-10-15 18:42:11,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:11,261 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:42:11,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596561470] [2020-10-15 18:42:11,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:42:11,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:42:11,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387554628] [2020-10-15 18:42:11,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:42:11,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:11,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:42:11,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:42:11,263 INFO L87 Difference]: Start difference. First operand 9401 states and 43010 transitions. Second operand 7 states. [2020-10-15 18:42:11,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:11,528 INFO L93 Difference]: Finished difference Result 21218 states and 86469 transitions. [2020-10-15 18:42:11,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:42:11,528 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-15 18:42:11,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:11,573 INFO L225 Difference]: With dead ends: 21218 [2020-10-15 18:42:11,573 INFO L226 Difference]: Without dead ends: 21181 [2020-10-15 18:42:11,574 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:42:11,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21181 states. [2020-10-15 18:42:11,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21181 to 9396. [2020-10-15 18:42:11,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9396 states. [2020-10-15 18:42:12,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9396 states to 9396 states and 42985 transitions. [2020-10-15 18:42:12,134 INFO L78 Accepts]: Start accepts. Automaton has 9396 states and 42985 transitions. Word has length 23 [2020-10-15 18:42:12,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:12,134 INFO L481 AbstractCegarLoop]: Abstraction has 9396 states and 42985 transitions. [2020-10-15 18:42:12,134 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:42:12,135 INFO L276 IsEmpty]: Start isEmpty. Operand 9396 states and 42985 transitions. [2020-10-15 18:42:12,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 18:42:12,137 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:12,137 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:12,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2020-10-15 18:42:12,137 INFO L429 AbstractCegarLoop]: === Iteration 23 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:12,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:12,137 INFO L82 PathProgramCache]: Analyzing trace with hash -150449920, now seen corresponding path program 2 times [2020-10-15 18:42:12,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:12,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018933586] [2020-10-15 18:42:12,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:12,175 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:42:12,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018933586] [2020-10-15 18:42:12,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:42:12,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:42:12,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336263018] [2020-10-15 18:42:12,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:42:12,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:12,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:42:12,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:42:12,176 INFO L87 Difference]: Start difference. First operand 9396 states and 42985 transitions. Second operand 7 states. [2020-10-15 18:42:12,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:12,472 INFO L93 Difference]: Finished difference Result 21047 states and 85702 transitions. [2020-10-15 18:42:12,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:42:12,473 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-15 18:42:12,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:12,522 INFO L225 Difference]: With dead ends: 21047 [2020-10-15 18:42:12,522 INFO L226 Difference]: Without dead ends: 21010 [2020-10-15 18:42:12,522 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:42:12,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21010 states. [2020-10-15 18:42:12,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21010 to 9426. [2020-10-15 18:42:12,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9426 states. [2020-10-15 18:42:12,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9426 states to 9426 states and 43057 transitions. [2020-10-15 18:42:12,844 INFO L78 Accepts]: Start accepts. Automaton has 9426 states and 43057 transitions. Word has length 23 [2020-10-15 18:42:12,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:12,846 INFO L481 AbstractCegarLoop]: Abstraction has 9426 states and 43057 transitions. [2020-10-15 18:42:12,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:42:12,846 INFO L276 IsEmpty]: Start isEmpty. Operand 9426 states and 43057 transitions. [2020-10-15 18:42:12,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:42:12,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:12,849 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:12,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2020-10-15 18:42:12,849 INFO L429 AbstractCegarLoop]: === Iteration 24 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:12,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:12,849 INFO L82 PathProgramCache]: Analyzing trace with hash -156736363, now seen corresponding path program 1 times [2020-10-15 18:42:12,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:12,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101452565] [2020-10-15 18:42:12,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:12,905 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 18:42:12,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101452565] [2020-10-15 18:42:12,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677922149] [2020-10-15 18:42:12,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:42:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:12,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:42:12,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:42:13,005 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 18:42:13,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:42:13,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:42:13,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064690990] [2020-10-15 18:42:13,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:42:13,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:13,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:42:13,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:42:13,006 INFO L87 Difference]: Start difference. First operand 9426 states and 43057 transitions. Second operand 11 states. [2020-10-15 18:42:13,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:13,730 INFO L93 Difference]: Finished difference Result 30145 states and 115754 transitions. [2020-10-15 18:42:13,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:42:13,731 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 18:42:13,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:13,797 INFO L225 Difference]: With dead ends: 30145 [2020-10-15 18:42:13,797 INFO L226 Difference]: Without dead ends: 30125 [2020-10-15 18:42:13,797 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:42:13,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30125 states. [2020-10-15 18:42:14,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30125 to 9338. [2020-10-15 18:42:14,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9338 states. [2020-10-15 18:42:14,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9338 states to 9338 states and 42582 transitions. [2020-10-15 18:42:14,214 INFO L78 Accepts]: Start accepts. Automaton has 9338 states and 42582 transitions. Word has length 25 [2020-10-15 18:42:14,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:14,214 INFO L481 AbstractCegarLoop]: Abstraction has 9338 states and 42582 transitions. [2020-10-15 18:42:14,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:42:14,214 INFO L276 IsEmpty]: Start isEmpty. Operand 9338 states and 42582 transitions. [2020-10-15 18:42:14,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:42:14,217 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:14,217 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:14,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2020-10-15 18:42:14,418 INFO L429 AbstractCegarLoop]: === Iteration 25 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:14,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:14,418 INFO L82 PathProgramCache]: Analyzing trace with hash -558170603, now seen corresponding path program 1 times [2020-10-15 18:42:14,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:14,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9456677] [2020-10-15 18:42:14,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:14,466 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-15 18:42:14,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9456677] [2020-10-15 18:42:14,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890646878] [2020-10-15 18:42:14,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:42:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:14,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:42:14,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:42:14,566 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-15 18:42:14,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:42:14,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:42:14,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622547647] [2020-10-15 18:42:14,567 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:42:14,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:14,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:42:14,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:42:14,568 INFO L87 Difference]: Start difference. First operand 9338 states and 42582 transitions. Second operand 11 states. [2020-10-15 18:42:15,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:15,281 INFO L93 Difference]: Finished difference Result 29696 states and 113916 transitions. [2020-10-15 18:42:15,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:42:15,282 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 18:42:15,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:15,351 INFO L225 Difference]: With dead ends: 29696 [2020-10-15 18:42:15,351 INFO L226 Difference]: Without dead ends: 29676 [2020-10-15 18:42:15,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:42:15,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29676 states. [2020-10-15 18:42:15,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29676 to 9291. [2020-10-15 18:42:15,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9291 states. [2020-10-15 18:42:15,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9291 states to 9291 states and 42295 transitions. [2020-10-15 18:42:15,958 INFO L78 Accepts]: Start accepts. Automaton has 9291 states and 42295 transitions. Word has length 25 [2020-10-15 18:42:15,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:15,958 INFO L481 AbstractCegarLoop]: Abstraction has 9291 states and 42295 transitions. [2020-10-15 18:42:15,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:42:15,959 INFO L276 IsEmpty]: Start isEmpty. Operand 9291 states and 42295 transitions. [2020-10-15 18:42:15,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:42:15,961 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:15,962 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:16,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2020-10-15 18:42:16,162 INFO L429 AbstractCegarLoop]: === Iteration 26 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:16,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:16,163 INFO L82 PathProgramCache]: Analyzing trace with hash -379966665, now seen corresponding path program 2 times [2020-10-15 18:42:16,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:16,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070989605] [2020-10-15 18:42:16,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:16,208 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:42:16,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070989605] [2020-10-15 18:42:16,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435802435] [2020-10-15 18:42:16,209 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:42:16,286 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 18:42:16,287 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:42:16,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:42:16,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:42:16,308 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:42:16,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:42:16,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:42:16,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495186931] [2020-10-15 18:42:16,309 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:42:16,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:16,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:42:16,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:42:16,309 INFO L87 Difference]: Start difference. First operand 9291 states and 42295 transitions. Second operand 11 states. [2020-10-15 18:42:16,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:16,963 INFO L93 Difference]: Finished difference Result 29267 states and 112142 transitions. [2020-10-15 18:42:16,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:42:16,963 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 18:42:16,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:17,031 INFO L225 Difference]: With dead ends: 29267 [2020-10-15 18:42:17,031 INFO L226 Difference]: Without dead ends: 29245 [2020-10-15 18:42:17,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:42:17,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29245 states. [2020-10-15 18:42:17,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29245 to 9288. [2020-10-15 18:42:17,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9288 states. [2020-10-15 18:42:17,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9288 states to 9288 states and 42242 transitions. [2020-10-15 18:42:17,456 INFO L78 Accepts]: Start accepts. Automaton has 9288 states and 42242 transitions. Word has length 25 [2020-10-15 18:42:17,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:17,456 INFO L481 AbstractCegarLoop]: Abstraction has 9288 states and 42242 transitions. [2020-10-15 18:42:17,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:42:17,457 INFO L276 IsEmpty]: Start isEmpty. Operand 9288 states and 42242 transitions. [2020-10-15 18:42:17,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:42:17,459 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:17,459 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:17,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2020-10-15 18:42:17,660 INFO L429 AbstractCegarLoop]: === Iteration 27 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:17,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:17,661 INFO L82 PathProgramCache]: Analyzing trace with hash -379945027, now seen corresponding path program 2 times [2020-10-15 18:42:17,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:17,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735609123] [2020-10-15 18:42:17,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:17,707 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:42:17,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735609123] [2020-10-15 18:42:17,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136795537] [2020-10-15 18:42:17,707 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:42:17,783 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 18:42:17,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:42:17,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:42:17,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:42:17,806 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:42:17,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:42:17,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:42:17,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508190162] [2020-10-15 18:42:17,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:42:17,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:17,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:42:17,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:42:17,807 INFO L87 Difference]: Start difference. First operand 9288 states and 42242 transitions. Second operand 11 states. [2020-10-15 18:42:18,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:18,484 INFO L93 Difference]: Finished difference Result 28920 states and 110796 transitions. [2020-10-15 18:42:18,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:42:18,485 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 18:42:18,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:18,543 INFO L225 Difference]: With dead ends: 28920 [2020-10-15 18:42:18,543 INFO L226 Difference]: Without dead ends: 28898 [2020-10-15 18:42:18,544 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:42:18,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28898 states. [2020-10-15 18:42:18,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28898 to 9176. [2020-10-15 18:42:18,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9176 states. [2020-10-15 18:42:18,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9176 states to 9176 states and 41695 transitions. [2020-10-15 18:42:18,937 INFO L78 Accepts]: Start accepts. Automaton has 9176 states and 41695 transitions. Word has length 25 [2020-10-15 18:42:18,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:18,937 INFO L481 AbstractCegarLoop]: Abstraction has 9176 states and 41695 transitions. [2020-10-15 18:42:18,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:42:18,937 INFO L276 IsEmpty]: Start isEmpty. Operand 9176 states and 41695 transitions. [2020-10-15 18:42:18,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:42:18,941 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:18,941 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:19,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:42:19,144 INFO L429 AbstractCegarLoop]: === Iteration 28 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:19,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:19,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1211690581, now seen corresponding path program 3 times [2020-10-15 18:42:19,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:19,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559602539] [2020-10-15 18:42:19,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:19,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:19,196 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-15 18:42:19,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559602539] [2020-10-15 18:42:19,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606301115] [2020-10-15 18:42:19,197 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:42:19,275 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-15 18:42:19,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:42:19,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:42:19,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:42:19,297 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-15 18:42:19,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:42:19,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:42:19,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142505358] [2020-10-15 18:42:19,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:42:19,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:19,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:42:19,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:42:19,298 INFO L87 Difference]: Start difference. First operand 9176 states and 41695 transitions. Second operand 11 states. [2020-10-15 18:42:19,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:19,965 INFO L93 Difference]: Finished difference Result 29038 states and 111216 transitions. [2020-10-15 18:42:19,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:42:19,966 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 18:42:19,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:20,028 INFO L225 Difference]: With dead ends: 29038 [2020-10-15 18:42:20,028 INFO L226 Difference]: Without dead ends: 29018 [2020-10-15 18:42:20,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:42:20,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29018 states. [2020-10-15 18:42:20,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29018 to 9000. [2020-10-15 18:42:20,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9000 states. [2020-10-15 18:42:20,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 40897 transitions. [2020-10-15 18:42:20,705 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 40897 transitions. Word has length 25 [2020-10-15 18:42:20,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:20,705 INFO L481 AbstractCegarLoop]: Abstraction has 9000 states and 40897 transitions. [2020-10-15 18:42:20,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:42:20,705 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 40897 transitions. [2020-10-15 18:42:20,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:42:20,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:20,709 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:20,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2020-10-15 18:42:20,910 INFO L429 AbstractCegarLoop]: === Iteration 29 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:20,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:20,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1201691221, now seen corresponding path program 4 times [2020-10-15 18:42:20,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:20,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452082119] [2020-10-15 18:42:20,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:20,960 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-15 18:42:20,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452082119] [2020-10-15 18:42:20,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011692650] [2020-10-15 18:42:20,961 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:42:21,042 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 18:42:21,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:42:21,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:42:21,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:42:21,059 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-15 18:42:21,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:42:21,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:42:21,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646786681] [2020-10-15 18:42:21,060 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:42:21,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:21,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:42:21,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:42:21,061 INFO L87 Difference]: Start difference. First operand 9000 states and 40897 transitions. Second operand 11 states. [2020-10-15 18:42:21,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:21,755 INFO L93 Difference]: Finished difference Result 29283 states and 112236 transitions. [2020-10-15 18:42:21,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:42:21,756 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 18:42:21,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:21,818 INFO L225 Difference]: With dead ends: 29283 [2020-10-15 18:42:21,818 INFO L226 Difference]: Without dead ends: 29261 [2020-10-15 18:42:21,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:42:21,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29261 states. [2020-10-15 18:42:22,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29261 to 8997. [2020-10-15 18:42:22,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8997 states. [2020-10-15 18:42:22,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8997 states to 8997 states and 40842 transitions. [2020-10-15 18:42:22,234 INFO L78 Accepts]: Start accepts. Automaton has 8997 states and 40842 transitions. Word has length 25 [2020-10-15 18:42:22,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:22,234 INFO L481 AbstractCegarLoop]: Abstraction has 8997 states and 40842 transitions. [2020-10-15 18:42:22,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:42:22,234 INFO L276 IsEmpty]: Start isEmpty. Operand 8997 states and 40842 transitions. [2020-10-15 18:42:22,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:42:22,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:22,238 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:22,438 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:42:22,439 INFO L429 AbstractCegarLoop]: === Iteration 30 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:22,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:22,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1201697793, now seen corresponding path program 1 times [2020-10-15 18:42:22,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:22,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620238005] [2020-10-15 18:42:22,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:22,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:22,489 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-15 18:42:22,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620238005] [2020-10-15 18:42:22,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021863687] [2020-10-15 18:42:22,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:42:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:22,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:42:22,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:42:22,589 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-15 18:42:22,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:42:22,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:42:22,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873012122] [2020-10-15 18:42:22,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:42:22,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:22,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:42:22,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:42:22,591 INFO L87 Difference]: Start difference. First operand 8997 states and 40842 transitions. Second operand 11 states. [2020-10-15 18:42:23,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:23,338 INFO L93 Difference]: Finished difference Result 29105 states and 111801 transitions. [2020-10-15 18:42:23,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:42:23,338 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 18:42:23,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:23,397 INFO L225 Difference]: With dead ends: 29105 [2020-10-15 18:42:23,397 INFO L226 Difference]: Without dead ends: 29085 [2020-10-15 18:42:23,398 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:42:23,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29085 states. [2020-10-15 18:42:23,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29085 to 8955. [2020-10-15 18:42:23,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8955 states. [2020-10-15 18:42:23,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8955 states to 8955 states and 40593 transitions. [2020-10-15 18:42:23,785 INFO L78 Accepts]: Start accepts. Automaton has 8955 states and 40593 transitions. Word has length 25 [2020-10-15 18:42:23,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:23,786 INFO L481 AbstractCegarLoop]: Abstraction has 8955 states and 40593 transitions. [2020-10-15 18:42:23,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:42:23,786 INFO L276 IsEmpty]: Start isEmpty. Operand 8955 states and 40593 transitions. [2020-10-15 18:42:23,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:42:23,789 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:23,789 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:23,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2020-10-15 18:42:23,990 INFO L429 AbstractCegarLoop]: === Iteration 31 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:23,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:23,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1218006273, now seen corresponding path program 2 times [2020-10-15 18:42:23,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:23,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123087870] [2020-10-15 18:42:23,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:23,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:24,035 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-15 18:42:24,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123087870] [2020-10-15 18:42:24,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288639910] [2020-10-15 18:42:24,036 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:42:24,107 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 18:42:24,108 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:42:24,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:42:24,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:42:24,132 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-15 18:42:24,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:42:24,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:42:24,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215244731] [2020-10-15 18:42:24,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:42:24,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:24,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:42:24,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:42:24,133 INFO L87 Difference]: Start difference. First operand 8955 states and 40593 transitions. Second operand 11 states. [2020-10-15 18:42:24,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:24,826 INFO L93 Difference]: Finished difference Result 28806 states and 110558 transitions. [2020-10-15 18:42:24,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:42:24,827 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 18:42:24,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:24,889 INFO L225 Difference]: With dead ends: 28806 [2020-10-15 18:42:24,889 INFO L226 Difference]: Without dead ends: 28779 [2020-10-15 18:42:24,889 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:42:25,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28779 states. [2020-10-15 18:42:25,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28779 to 8841. [2020-10-15 18:42:25,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8841 states. [2020-10-15 18:42:25,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8841 states to 8841 states and 40062 transitions. [2020-10-15 18:42:25,293 INFO L78 Accepts]: Start accepts. Automaton has 8841 states and 40062 transitions. Word has length 25 [2020-10-15 18:42:25,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:25,293 INFO L481 AbstractCegarLoop]: Abstraction has 8841 states and 40062 transitions. [2020-10-15 18:42:25,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:42:25,293 INFO L276 IsEmpty]: Start isEmpty. Operand 8841 states and 40062 transitions. [2020-10-15 18:42:25,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:42:25,297 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:25,298 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:25,504 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:42:25,505 INFO L429 AbstractCegarLoop]: === Iteration 32 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:25,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:25,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1980442581, now seen corresponding path program 3 times [2020-10-15 18:42:25,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:25,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775282374] [2020-10-15 18:42:25,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:25,561 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 18:42:25,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775282374] [2020-10-15 18:42:25,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263997294] [2020-10-15 18:42:25,562 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:42:25,760 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-15 18:42:25,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:42:25,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:42:25,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:42:25,783 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 18:42:25,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:42:25,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:42:25,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019925291] [2020-10-15 18:42:25,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:42:25,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:25,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:42:25,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:42:25,784 INFO L87 Difference]: Start difference. First operand 8841 states and 40062 transitions. Second operand 11 states. [2020-10-15 18:42:26,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:26,509 INFO L93 Difference]: Finished difference Result 28636 states and 109852 transitions. [2020-10-15 18:42:26,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:42:26,510 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 18:42:26,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:26,577 INFO L225 Difference]: With dead ends: 28636 [2020-10-15 18:42:26,577 INFO L226 Difference]: Without dead ends: 28616 [2020-10-15 18:42:26,578 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:42:26,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28616 states. [2020-10-15 18:42:26,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28616 to 8702. [2020-10-15 18:42:26,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8702 states. [2020-10-15 18:42:26,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8702 states to 8702 states and 39438 transitions. [2020-10-15 18:42:26,961 INFO L78 Accepts]: Start accepts. Automaton has 8702 states and 39438 transitions. Word has length 25 [2020-10-15 18:42:26,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:26,961 INFO L481 AbstractCegarLoop]: Abstraction has 8702 states and 39438 transitions. [2020-10-15 18:42:26,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:42:26,962 INFO L276 IsEmpty]: Start isEmpty. Operand 8702 states and 39438 transitions. [2020-10-15 18:42:26,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:42:26,964 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:26,964 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:27,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2020-10-15 18:42:27,165 INFO L429 AbstractCegarLoop]: === Iteration 33 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:27,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:27,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1965964155, now seen corresponding path program 3 times [2020-10-15 18:42:27,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:27,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401446626] [2020-10-15 18:42:27,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:27,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:27,212 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 18:42:27,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401446626] [2020-10-15 18:42:27,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544174415] [2020-10-15 18:42:27,213 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:42:27,306 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-15 18:42:27,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:42:27,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:42:27,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:42:27,334 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 18:42:27,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:42:27,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:42:27,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998848677] [2020-10-15 18:42:27,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:42:27,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:27,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:42:27,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:42:27,340 INFO L87 Difference]: Start difference. First operand 8702 states and 39438 transitions. Second operand 11 states. [2020-10-15 18:42:27,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:27,958 INFO L93 Difference]: Finished difference Result 28297 states and 108461 transitions. [2020-10-15 18:42:27,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:42:27,958 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 18:42:27,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:28,018 INFO L225 Difference]: With dead ends: 28297 [2020-10-15 18:42:28,018 INFO L226 Difference]: Without dead ends: 28277 [2020-10-15 18:42:28,018 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:42:28,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28277 states. [2020-10-15 18:42:28,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28277 to 8596. [2020-10-15 18:42:28,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8596 states. [2020-10-15 18:42:28,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8596 states to 8596 states and 38978 transitions. [2020-10-15 18:42:28,433 INFO L78 Accepts]: Start accepts. Automaton has 8596 states and 38978 transitions. Word has length 25 [2020-10-15 18:42:28,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:28,434 INFO L481 AbstractCegarLoop]: Abstraction has 8596 states and 38978 transitions. [2020-10-15 18:42:28,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:42:28,434 INFO L276 IsEmpty]: Start isEmpty. Operand 8596 states and 38978 transitions. [2020-10-15 18:42:28,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:42:28,438 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:28,438 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:28,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:42:28,638 INFO L429 AbstractCegarLoop]: === Iteration 34 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:28,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:28,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1970443221, now seen corresponding path program 4 times [2020-10-15 18:42:28,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:28,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701259420] [2020-10-15 18:42:28,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:28,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:28,687 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 18:42:28,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701259420] [2020-10-15 18:42:28,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985321482] [2020-10-15 18:42:28,688 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:42:28,794 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 18:42:28,794 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:42:28,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:42:28,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:42:28,823 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 18:42:28,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:42:28,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:42:28,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477212710] [2020-10-15 18:42:28,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:42:28,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:28,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:42:28,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:42:28,825 INFO L87 Difference]: Start difference. First operand 8596 states and 38978 transitions. Second operand 11 states. [2020-10-15 18:42:29,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:29,641 INFO L93 Difference]: Finished difference Result 28565 states and 109596 transitions. [2020-10-15 18:42:29,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:42:29,642 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 18:42:29,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:29,703 INFO L225 Difference]: With dead ends: 28565 [2020-10-15 18:42:29,704 INFO L226 Difference]: Without dead ends: 28538 [2020-10-15 18:42:29,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:42:29,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28538 states. [2020-10-15 18:42:30,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28538 to 8563. [2020-10-15 18:42:30,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8563 states. [2020-10-15 18:42:30,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8563 states to 8563 states and 38809 transitions. [2020-10-15 18:42:30,080 INFO L78 Accepts]: Start accepts. Automaton has 8563 states and 38809 transitions. Word has length 25 [2020-10-15 18:42:30,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:30,081 INFO L481 AbstractCegarLoop]: Abstraction has 8563 states and 38809 transitions. [2020-10-15 18:42:30,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:42:30,081 INFO L276 IsEmpty]: Start isEmpty. Operand 8563 states and 38809 transitions. [2020-10-15 18:42:30,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:42:30,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:30,084 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:30,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2020-10-15 18:42:30,284 INFO L429 AbstractCegarLoop]: === Iteration 35 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:30,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:30,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1970428155, now seen corresponding path program 4 times [2020-10-15 18:42:30,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:30,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26323593] [2020-10-15 18:42:30,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:30,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:30,331 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 18:42:30,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26323593] [2020-10-15 18:42:30,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352024127] [2020-10-15 18:42:30,331 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:42:30,401 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 18:42:30,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:42:30,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:42:30,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:42:30,426 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 18:42:30,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:42:30,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:42:30,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139693322] [2020-10-15 18:42:30,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:42:30,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:30,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:42:30,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:42:30,427 INFO L87 Difference]: Start difference. First operand 8563 states and 38809 transitions. Second operand 11 states. [2020-10-15 18:42:31,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:31,110 INFO L93 Difference]: Finished difference Result 28213 states and 108237 transitions. [2020-10-15 18:42:31,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:42:31,110 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 18:42:31,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:31,167 INFO L225 Difference]: With dead ends: 28213 [2020-10-15 18:42:31,167 INFO L226 Difference]: Without dead ends: 28186 [2020-10-15 18:42:31,167 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:42:31,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28186 states. [2020-10-15 18:42:31,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28186 to 8421. [2020-10-15 18:42:31,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8421 states. [2020-10-15 18:42:31,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8421 states to 8421 states and 38146 transitions. [2020-10-15 18:42:31,701 INFO L78 Accepts]: Start accepts. Automaton has 8421 states and 38146 transitions. Word has length 25 [2020-10-15 18:42:31,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:31,701 INFO L481 AbstractCegarLoop]: Abstraction has 8421 states and 38146 transitions. [2020-10-15 18:42:31,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:42:31,701 INFO L276 IsEmpty]: Start isEmpty. Operand 8421 states and 38146 transitions. [2020-10-15 18:42:31,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:42:31,704 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:31,704 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:31,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:42:31,905 INFO L429 AbstractCegarLoop]: === Iteration 36 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:31,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:31,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1943046054, now seen corresponding path program 1 times [2020-10-15 18:42:31,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:31,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384376040] [2020-10-15 18:42:31,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:31,930 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 18:42:31,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384376040] [2020-10-15 18:42:31,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:42:31,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:42:31,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829448728] [2020-10-15 18:42:31,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:42:31,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:31,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:42:31,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:42:31,931 INFO L87 Difference]: Start difference. First operand 8421 states and 38146 transitions. Second operand 5 states. [2020-10-15 18:42:32,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:32,113 INFO L93 Difference]: Finished difference Result 13647 states and 59401 transitions. [2020-10-15 18:42:32,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:42:32,114 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-15 18:42:32,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:32,173 INFO L225 Difference]: With dead ends: 13647 [2020-10-15 18:42:32,173 INFO L226 Difference]: Without dead ends: 13615 [2020-10-15 18:42:32,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:42:32,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13615 states. [2020-10-15 18:42:32,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13615 to 9928. [2020-10-15 18:42:32,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9928 states. [2020-10-15 18:42:32,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9928 states to 9928 states and 44651 transitions. [2020-10-15 18:42:32,729 INFO L78 Accepts]: Start accepts. Automaton has 9928 states and 44651 transitions. Word has length 25 [2020-10-15 18:42:32,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:32,731 INFO L481 AbstractCegarLoop]: Abstraction has 9928 states and 44651 transitions. [2020-10-15 18:42:32,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:42:32,731 INFO L276 IsEmpty]: Start isEmpty. Operand 9928 states and 44651 transitions. [2020-10-15 18:42:32,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:42:32,737 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:32,737 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:32,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2020-10-15 18:42:32,738 INFO L429 AbstractCegarLoop]: === Iteration 37 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:32,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:32,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1440199159, now seen corresponding path program 5 times [2020-10-15 18:42:32,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:32,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602884315] [2020-10-15 18:42:32,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:32,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:32,830 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:42:32,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602884315] [2020-10-15 18:42:32,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:42:32,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:42:32,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859019143] [2020-10-15 18:42:32,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:42:32,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:32,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:42:32,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:42:32,833 INFO L87 Difference]: Start difference. First operand 9928 states and 44651 transitions. Second operand 9 states. [2020-10-15 18:42:33,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:33,557 INFO L93 Difference]: Finished difference Result 31816 states and 123346 transitions. [2020-10-15 18:42:33,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:42:33,557 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 18:42:33,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:33,632 INFO L225 Difference]: With dead ends: 31816 [2020-10-15 18:42:33,632 INFO L226 Difference]: Without dead ends: 31790 [2020-10-15 18:42:33,632 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:42:33,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31790 states. [2020-10-15 18:42:34,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31790 to 9766. [2020-10-15 18:42:34,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9766 states. [2020-10-15 18:42:34,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9766 states to 9766 states and 43873 transitions. [2020-10-15 18:42:34,121 INFO L78 Accepts]: Start accepts. Automaton has 9766 states and 43873 transitions. Word has length 25 [2020-10-15 18:42:34,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:34,121 INFO L481 AbstractCegarLoop]: Abstraction has 9766 states and 43873 transitions. [2020-10-15 18:42:34,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:42:34,121 INFO L276 IsEmpty]: Start isEmpty. Operand 9766 states and 43873 transitions. [2020-10-15 18:42:34,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:42:34,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:34,124 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:34,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2020-10-15 18:42:34,125 INFO L429 AbstractCegarLoop]: === Iteration 38 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:34,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:34,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1440220797, now seen corresponding path program 5 times [2020-10-15 18:42:34,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:34,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012044333] [2020-10-15 18:42:34,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:34,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:34,173 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:42:34,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012044333] [2020-10-15 18:42:34,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:42:34,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:42:34,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936276096] [2020-10-15 18:42:34,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:42:34,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:34,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:42:34,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:42:34,175 INFO L87 Difference]: Start difference. First operand 9766 states and 43873 transitions. Second operand 9 states. [2020-10-15 18:42:34,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:34,815 INFO L93 Difference]: Finished difference Result 31277 states and 121098 transitions. [2020-10-15 18:42:34,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:42:34,815 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 18:42:34,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:34,883 INFO L225 Difference]: With dead ends: 31277 [2020-10-15 18:42:34,883 INFO L226 Difference]: Without dead ends: 31251 [2020-10-15 18:42:34,883 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:42:35,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31251 states. [2020-10-15 18:42:35,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31251 to 9592. [2020-10-15 18:42:35,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9592 states. [2020-10-15 18:42:35,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9592 states to 9592 states and 43051 transitions. [2020-10-15 18:42:35,326 INFO L78 Accepts]: Start accepts. Automaton has 9592 states and 43051 transitions. Word has length 25 [2020-10-15 18:42:35,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:35,327 INFO L481 AbstractCegarLoop]: Abstraction has 9592 states and 43051 transitions. [2020-10-15 18:42:35,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:42:35,327 INFO L276 IsEmpty]: Start isEmpty. Operand 9592 states and 43051 transitions. [2020-10-15 18:42:35,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:42:35,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:35,330 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:35,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2020-10-15 18:42:35,330 INFO L429 AbstractCegarLoop]: === Iteration 39 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:35,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:35,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1425735799, now seen corresponding path program 6 times [2020-10-15 18:42:35,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:35,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136162274] [2020-10-15 18:42:35,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:35,376 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:42:35,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136162274] [2020-10-15 18:42:35,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:42:35,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:42:35,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352291619] [2020-10-15 18:42:35,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:42:35,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:35,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:42:35,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:42:35,377 INFO L87 Difference]: Start difference. First operand 9592 states and 43051 transitions. Second operand 9 states. [2020-10-15 18:42:35,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:35,998 INFO L93 Difference]: Finished difference Result 30952 states and 119650 transitions. [2020-10-15 18:42:35,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:42:35,999 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 18:42:35,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:36,063 INFO L225 Difference]: With dead ends: 30952 [2020-10-15 18:42:36,063 INFO L226 Difference]: Without dead ends: 30919 [2020-10-15 18:42:36,064 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:42:36,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30919 states. [2020-10-15 18:42:36,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30919 to 9246. [2020-10-15 18:42:36,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9246 states. [2020-10-15 18:42:36,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9246 states to 9246 states and 41509 transitions. [2020-10-15 18:42:36,486 INFO L78 Accepts]: Start accepts. Automaton has 9246 states and 41509 transitions. Word has length 25 [2020-10-15 18:42:36,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:36,486 INFO L481 AbstractCegarLoop]: Abstraction has 9246 states and 41509 transitions. [2020-10-15 18:42:36,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:42:36,486 INFO L276 IsEmpty]: Start isEmpty. Operand 9246 states and 41509 transitions. [2020-10-15 18:42:36,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:42:36,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:36,489 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:36,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2020-10-15 18:42:36,489 INFO L429 AbstractCegarLoop]: === Iteration 40 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:36,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:36,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1425742371, now seen corresponding path program 5 times [2020-10-15 18:42:36,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:36,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464760907] [2020-10-15 18:42:36,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:36,534 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:42:36,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464760907] [2020-10-15 18:42:36,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:42:36,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:42:36,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091463534] [2020-10-15 18:42:36,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:42:36,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:36,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:42:36,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:42:36,536 INFO L87 Difference]: Start difference. First operand 9246 states and 41509 transitions. Second operand 9 states. [2020-10-15 18:42:37,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:37,311 INFO L93 Difference]: Finished difference Result 30541 states and 117947 transitions. [2020-10-15 18:42:37,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:42:37,312 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 18:42:37,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:37,382 INFO L225 Difference]: With dead ends: 30541 [2020-10-15 18:42:37,382 INFO L226 Difference]: Without dead ends: 30515 [2020-10-15 18:42:37,383 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:42:37,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30515 states. [2020-10-15 18:42:37,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30515 to 9136. [2020-10-15 18:42:37,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9136 states. [2020-10-15 18:42:37,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9136 states to 9136 states and 40999 transitions. [2020-10-15 18:42:37,828 INFO L78 Accepts]: Start accepts. Automaton has 9136 states and 40999 transitions. Word has length 25 [2020-10-15 18:42:37,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:37,828 INFO L481 AbstractCegarLoop]: Abstraction has 9136 states and 40999 transitions. [2020-10-15 18:42:37,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:42:37,828 INFO L276 IsEmpty]: Start isEmpty. Operand 9136 states and 40999 transitions. [2020-10-15 18:42:37,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:42:37,831 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:37,831 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:37,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2020-10-15 18:42:37,831 INFO L429 AbstractCegarLoop]: === Iteration 41 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:37,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:37,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1446529917, now seen corresponding path program 6 times [2020-10-15 18:42:37,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:37,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149710764] [2020-10-15 18:42:37,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:37,876 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:42:37,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149710764] [2020-10-15 18:42:37,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:42:37,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:42:37,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229118479] [2020-10-15 18:42:37,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:42:37,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:37,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:42:37,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:42:37,877 INFO L87 Difference]: Start difference. First operand 9136 states and 40999 transitions. Second operand 9 states. [2020-10-15 18:42:38,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:38,568 INFO L93 Difference]: Finished difference Result 30263 states and 116773 transitions. [2020-10-15 18:42:38,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:42:38,568 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 18:42:38,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:38,629 INFO L225 Difference]: With dead ends: 30263 [2020-10-15 18:42:38,630 INFO L226 Difference]: Without dead ends: 30230 [2020-10-15 18:42:38,630 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:42:38,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30230 states. [2020-10-15 18:42:39,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30230 to 8877. [2020-10-15 18:42:39,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8877 states. [2020-10-15 18:42:39,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 39872 transitions. [2020-10-15 18:42:39,039 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 39872 transitions. Word has length 25 [2020-10-15 18:42:39,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:39,039 INFO L481 AbstractCegarLoop]: Abstraction has 8877 states and 39872 transitions. [2020-10-15 18:42:39,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:42:39,039 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 39872 transitions. [2020-10-15 18:42:39,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:42:39,042 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:39,042 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:39,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2020-10-15 18:42:39,042 INFO L429 AbstractCegarLoop]: === Iteration 42 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:39,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:39,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1446514851, now seen corresponding path program 6 times [2020-10-15 18:42:39,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:39,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233895014] [2020-10-15 18:42:39,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:39,095 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:42:39,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233895014] [2020-10-15 18:42:39,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:42:39,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:42:39,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076347739] [2020-10-15 18:42:39,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:42:39,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:39,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:42:39,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:42:39,097 INFO L87 Difference]: Start difference. First operand 8877 states and 39872 transitions. Second operand 9 states. [2020-10-15 18:42:39,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:39,785 INFO L93 Difference]: Finished difference Result 29856 states and 115140 transitions. [2020-10-15 18:42:39,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:42:39,786 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 18:42:39,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:39,845 INFO L225 Difference]: With dead ends: 29856 [2020-10-15 18:42:39,846 INFO L226 Difference]: Without dead ends: 29823 [2020-10-15 18:42:39,846 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:42:39,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29823 states. [2020-10-15 18:42:40,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29823 to 8560. [2020-10-15 18:42:40,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8560 states. [2020-10-15 18:42:40,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 38495 transitions. [2020-10-15 18:42:40,235 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 38495 transitions. Word has length 25 [2020-10-15 18:42:40,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:40,235 INFO L481 AbstractCegarLoop]: Abstraction has 8560 states and 38495 transitions. [2020-10-15 18:42:40,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:42:40,235 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 38495 transitions. [2020-10-15 18:42:40,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-15 18:42:40,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:40,238 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:40,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2020-10-15 18:42:40,238 INFO L429 AbstractCegarLoop]: === Iteration 43 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:40,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:40,239 INFO L82 PathProgramCache]: Analyzing trace with hash -110415564, now seen corresponding path program 1 times [2020-10-15 18:42:40,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:40,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325245446] [2020-10-15 18:42:40,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 18:42:40,245 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 18:42:40,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 18:42:40,251 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 18:42:40,257 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 18:42:40,257 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 18:42:40,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2020-10-15 18:42:40,258 WARN L371 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 18:42:40,258 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2020-10-15 18:42:40,272 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,272 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,272 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,272 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,273 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,273 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,273 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,273 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,273 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,273 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,273 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,274 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,274 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,274 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,274 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,274 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,274 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,274 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,274 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,275 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,275 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,275 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,275 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,275 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,275 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,275 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,275 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,276 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,276 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,276 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,276 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,276 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,276 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,276 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,276 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,277 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,277 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,277 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,277 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,277 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,277 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,277 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,278 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,278 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,278 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,278 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,278 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,278 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,278 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,278 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,279 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,279 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,279 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,279 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,279 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,279 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,282 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,282 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,282 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,283 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,283 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,284 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,284 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,289 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,289 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,290 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,290 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,290 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,297 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,297 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,297 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,297 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,297 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,299 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,300 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,300 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,300 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,300 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,302 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,302 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,302 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,302 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,303 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,305 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,305 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,305 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,306 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,306 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,306 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,307 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,307 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,307 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,307 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,308 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,308 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,308 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,308 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,308 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,308 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,309 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,309 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,309 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,309 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,310 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,310 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,311 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,311 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,311 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,312 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,312 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,312 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,313 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,313 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,313 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,313 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,313 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,313 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,314 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,314 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,314 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,314 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,314 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,314 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,315 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,316 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,316 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,316 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,316 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,316 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:42:40,317 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-10-15 18:42:40,317 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:42:40,317 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:42:40,317 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:42:40,317 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:42:40,317 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:42:40,318 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:42:40,318 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:42:40,318 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:42:40,319 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:42:40,320 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 160 places, 141 transitions, 402 flow [2020-10-15 18:42:40,320 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 160 places, 141 transitions, 402 flow [2020-10-15 18:42:40,320 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 160 places, 141 transitions, 402 flow [2020-10-15 18:42:40,340 INFO L129 PetriNetUnfolder]: 8/171 cut-off events. [2020-10-15 18:42:40,340 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-10-15 18:42:40,342 INFO L80 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 171 events. 8/171 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 310 event pairs, 0 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 206. Up to 14 conditions per place. [2020-10-15 18:42:40,348 INFO L117 LiptonReduction]: Number of co-enabled transitions 3612 [2020-10-15 18:42:42,131 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-15 18:42:42,413 INFO L132 LiptonReduction]: Checked pairs total: 5372 [2020-10-15 18:42:42,414 INFO L134 LiptonReduction]: Total number of compositions: 134 [2020-10-15 18:42:42,414 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71 places, 45 transitions, 210 flow [2020-10-15 18:42:43,983 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 18584 states. [2020-10-15 18:42:43,983 INFO L276 IsEmpty]: Start isEmpty. Operand 18584 states. [2020-10-15 18:42:43,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-15 18:42:43,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:43,984 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-15 18:42:43,984 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:43,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:43,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1291919, now seen corresponding path program 1 times [2020-10-15 18:42:43,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:43,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498007983] [2020-10-15 18:42:43,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:43,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:43,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:42:43,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498007983] [2020-10-15 18:42:43,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:42:43,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:42:43,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717532280] [2020-10-15 18:42:43,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:42:43,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:43,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:42:43,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:42:43,993 INFO L87 Difference]: Start difference. First operand 18584 states. Second operand 3 states. [2020-10-15 18:42:44,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:44,102 INFO L93 Difference]: Finished difference Result 17885 states and 92755 transitions. [2020-10-15 18:42:44,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:42:44,103 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-15 18:42:44,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:44,150 INFO L225 Difference]: With dead ends: 17885 [2020-10-15 18:42:44,151 INFO L226 Difference]: Without dead ends: 16791 [2020-10-15 18:42:44,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:42:44,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16791 states. [2020-10-15 18:42:44,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16791 to 16791. [2020-10-15 18:42:44,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16791 states. [2020-10-15 18:42:44,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16791 states to 16791 states and 86558 transitions. [2020-10-15 18:42:44,910 INFO L78 Accepts]: Start accepts. Automaton has 16791 states and 86558 transitions. Word has length 3 [2020-10-15 18:42:44,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:44,910 INFO L481 AbstractCegarLoop]: Abstraction has 16791 states and 86558 transitions. [2020-10-15 18:42:44,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:42:44,910 INFO L276 IsEmpty]: Start isEmpty. Operand 16791 states and 86558 transitions. [2020-10-15 18:42:44,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 18:42:44,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:44,911 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:44,911 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2020-10-15 18:42:44,911 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:44,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:44,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1124534846, now seen corresponding path program 1 times [2020-10-15 18:42:44,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:44,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304669122] [2020-10-15 18:42:44,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:44,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:44,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:42:44,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304669122] [2020-10-15 18:42:44,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:42:44,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:42:44,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227894411] [2020-10-15 18:42:44,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:42:44,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:44,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:42:44,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:42:44,942 INFO L87 Difference]: Start difference. First operand 16791 states and 86558 transitions. Second operand 5 states. [2020-10-15 18:42:45,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:45,172 INFO L93 Difference]: Finished difference Result 30985 states and 150574 transitions. [2020-10-15 18:42:45,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:42:45,173 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-15 18:42:45,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:45,255 INFO L225 Difference]: With dead ends: 30985 [2020-10-15 18:42:45,255 INFO L226 Difference]: Without dead ends: 30977 [2020-10-15 18:42:45,255 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:42:45,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30977 states. [2020-10-15 18:42:46,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30977 to 19868. [2020-10-15 18:42:46,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19868 states. [2020-10-15 18:42:46,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19868 states to 19868 states and 103363 transitions. [2020-10-15 18:42:46,246 INFO L78 Accepts]: Start accepts. Automaton has 19868 states and 103363 transitions. Word has length 9 [2020-10-15 18:42:46,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:46,246 INFO L481 AbstractCegarLoop]: Abstraction has 19868 states and 103363 transitions. [2020-10-15 18:42:46,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:42:46,246 INFO L276 IsEmpty]: Start isEmpty. Operand 19868 states and 103363 transitions. [2020-10-15 18:42:46,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:42:46,247 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:46,247 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:46,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2020-10-15 18:42:46,248 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:46,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:46,248 INFO L82 PathProgramCache]: Analyzing trace with hash -696216523, now seen corresponding path program 1 times [2020-10-15 18:42:46,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:46,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852234397] [2020-10-15 18:42:46,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:46,267 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 18:42:46,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852234397] [2020-10-15 18:42:46,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:42:46,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:42:46,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257414371] [2020-10-15 18:42:46,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:42:46,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:46,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:42:46,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:42:46,268 INFO L87 Difference]: Start difference. First operand 19868 states and 103363 transitions. Second operand 5 states. [2020-10-15 18:42:46,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:46,520 INFO L93 Difference]: Finished difference Result 36296 states and 178836 transitions. [2020-10-15 18:42:46,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:42:46,520 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 18:42:46,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:46,622 INFO L225 Difference]: With dead ends: 36296 [2020-10-15 18:42:46,622 INFO L226 Difference]: Without dead ends: 36280 [2020-10-15 18:42:46,623 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:42:47,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36280 states. [2020-10-15 18:42:48,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36280 to 23806. [2020-10-15 18:42:48,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23806 states. [2020-10-15 18:42:48,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23806 states to 23806 states and 125455 transitions. [2020-10-15 18:42:48,202 INFO L78 Accepts]: Start accepts. Automaton has 23806 states and 125455 transitions. Word has length 13 [2020-10-15 18:42:48,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:48,202 INFO L481 AbstractCegarLoop]: Abstraction has 23806 states and 125455 transitions. [2020-10-15 18:42:48,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:42:48,203 INFO L276 IsEmpty]: Start isEmpty. Operand 23806 states and 125455 transitions. [2020-10-15 18:42:48,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:42:48,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:48,203 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:48,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2020-10-15 18:42:48,203 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:48,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:48,204 INFO L82 PathProgramCache]: Analyzing trace with hash -2123666531, now seen corresponding path program 1 times [2020-10-15 18:42:48,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:48,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124396010] [2020-10-15 18:42:48,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:48,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:42:48,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124396010] [2020-10-15 18:42:48,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838296443] [2020-10-15 18:42:48,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:42:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:48,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 18:42:48,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:42:48,345 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:42:48,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:42:48,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 18:42:48,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874807352] [2020-10-15 18:42:48,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:42:48,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:48,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:42:48,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:42:48,346 INFO L87 Difference]: Start difference. First operand 23806 states and 125455 transitions. Second operand 9 states. [2020-10-15 18:42:48,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:48,848 INFO L93 Difference]: Finished difference Result 56720 states and 262685 transitions. [2020-10-15 18:42:48,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:42:48,849 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-10-15 18:42:48,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:49,022 INFO L225 Difference]: With dead ends: 56720 [2020-10-15 18:42:49,022 INFO L226 Difference]: Without dead ends: 56704 [2020-10-15 18:42:49,022 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 18:42:49,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56704 states. [2020-10-15 18:42:50,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56704 to 23629. [2020-10-15 18:42:50,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23629 states. [2020-10-15 18:42:50,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23629 states to 23629 states and 124418 transitions. [2020-10-15 18:42:50,405 INFO L78 Accepts]: Start accepts. Automaton has 23629 states and 124418 transitions. Word has length 15 [2020-10-15 18:42:50,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:50,405 INFO L481 AbstractCegarLoop]: Abstraction has 23629 states and 124418 transitions. [2020-10-15 18:42:50,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:42:50,405 INFO L276 IsEmpty]: Start isEmpty. Operand 23629 states and 124418 transitions. [2020-10-15 18:42:50,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:42:50,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:50,405 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:50,606 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2020-10-15 18:42:50,606 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:50,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:50,607 INFO L82 PathProgramCache]: Analyzing trace with hash 950817645, now seen corresponding path program 2 times [2020-10-15 18:42:50,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:50,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792001981] [2020-10-15 18:42:50,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:50,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:50,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 18:42:50,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792001981] [2020-10-15 18:42:50,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:42:50,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:42:50,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603093177] [2020-10-15 18:42:50,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:42:50,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:50,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:42:50,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:42:50,640 INFO L87 Difference]: Start difference. First operand 23629 states and 124418 transitions. Second operand 7 states. [2020-10-15 18:42:51,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:51,121 INFO L93 Difference]: Finished difference Result 58078 states and 269185 transitions. [2020-10-15 18:42:51,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:42:51,121 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-15 18:42:51,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:51,281 INFO L225 Difference]: With dead ends: 58078 [2020-10-15 18:42:51,281 INFO L226 Difference]: Without dead ends: 58061 [2020-10-15 18:42:51,281 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:42:51,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58061 states. [2020-10-15 18:42:55,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58061 to 23109. [2020-10-15 18:42:55,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23109 states. [2020-10-15 18:42:55,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23109 states to 23109 states and 121651 transitions. [2020-10-15 18:42:55,104 INFO L78 Accepts]: Start accepts. Automaton has 23109 states and 121651 transitions. Word has length 15 [2020-10-15 18:42:55,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:55,104 INFO L481 AbstractCegarLoop]: Abstraction has 23109 states and 121651 transitions. [2020-10-15 18:42:55,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:42:55,104 INFO L276 IsEmpty]: Start isEmpty. Operand 23109 states and 121651 transitions. [2020-10-15 18:42:55,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 18:42:55,104 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:55,105 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:55,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2020-10-15 18:42:55,105 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:55,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:55,105 INFO L82 PathProgramCache]: Analyzing trace with hash -2120658652, now seen corresponding path program 1 times [2020-10-15 18:42:55,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:55,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162486140] [2020-10-15 18:42:55,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:55,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:55,126 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:42:55,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162486140] [2020-10-15 18:42:55,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:42:55,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:42:55,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967960108] [2020-10-15 18:42:55,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:42:55,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:55,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:42:55,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:42:55,128 INFO L87 Difference]: Start difference. First operand 23109 states and 121651 transitions. Second operand 5 states. [2020-10-15 18:42:55,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:55,422 INFO L93 Difference]: Finished difference Result 41885 states and 209629 transitions. [2020-10-15 18:42:55,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:42:55,423 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-15 18:42:55,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:55,542 INFO L225 Difference]: With dead ends: 41885 [2020-10-15 18:42:55,542 INFO L226 Difference]: Without dead ends: 41856 [2020-10-15 18:42:55,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:42:56,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41856 states. [2020-10-15 18:42:56,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41856 to 28237. [2020-10-15 18:42:56,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28237 states. [2020-10-15 18:42:56,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28237 states to 28237 states and 150261 transitions. [2020-10-15 18:42:56,862 INFO L78 Accepts]: Start accepts. Automaton has 28237 states and 150261 transitions. Word has length 17 [2020-10-15 18:42:56,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:42:56,863 INFO L481 AbstractCegarLoop]: Abstraction has 28237 states and 150261 transitions. [2020-10-15 18:42:56,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:42:56,863 INFO L276 IsEmpty]: Start isEmpty. Operand 28237 states and 150261 transitions. [2020-10-15 18:42:56,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 18:42:56,864 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:42:56,864 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:42:56,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2020-10-15 18:42:56,864 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:42:56,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:42:56,864 INFO L82 PathProgramCache]: Analyzing trace with hash 269605662, now seen corresponding path program 1 times [2020-10-15 18:42:56,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:42:56,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501087265] [2020-10-15 18:42:56,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:42:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:56,904 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 18:42:56,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501087265] [2020-10-15 18:42:56,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502278594] [2020-10-15 18:42:56,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:42:56,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:42:56,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 18:42:56,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:42:57,003 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 18:42:57,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:42:57,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 18:42:57,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877347446] [2020-10-15 18:42:57,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:42:57,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:42:57,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:42:57,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:42:57,004 INFO L87 Difference]: Start difference. First operand 28237 states and 150261 transitions. Second operand 9 states. [2020-10-15 18:42:57,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:42:57,558 INFO L93 Difference]: Finished difference Result 66831 states and 314874 transitions. [2020-10-15 18:42:57,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:42:57,559 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-10-15 18:42:57,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:42:57,751 INFO L225 Difference]: With dead ends: 66831 [2020-10-15 18:42:57,751 INFO L226 Difference]: Without dead ends: 66807 [2020-10-15 18:42:57,751 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 18:42:58,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66807 states. [2020-10-15 18:43:00,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66807 to 28673. [2020-10-15 18:43:00,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28673 states. [2020-10-15 18:43:00,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28673 states to 28673 states and 152375 transitions. [2020-10-15 18:43:00,203 INFO L78 Accepts]: Start accepts. Automaton has 28673 states and 152375 transitions. Word has length 19 [2020-10-15 18:43:00,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:43:00,204 INFO L481 AbstractCegarLoop]: Abstraction has 28673 states and 152375 transitions. [2020-10-15 18:43:00,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:43:00,204 INFO L276 IsEmpty]: Start isEmpty. Operand 28673 states and 152375 transitions. [2020-10-15 18:43:00,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 18:43:00,204 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:43:00,204 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:43:00,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable81 [2020-10-15 18:43:00,405 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:43:00,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:43:00,406 INFO L82 PathProgramCache]: Analyzing trace with hash -2138468196, now seen corresponding path program 2 times [2020-10-15 18:43:00,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:43:00,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46049635] [2020-10-15 18:43:00,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:43:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:43:00,437 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:43:00,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46049635] [2020-10-15 18:43:00,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:43:00,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:43:00,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220747459] [2020-10-15 18:43:00,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:43:00,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:43:00,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:43:00,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:43:00,439 INFO L87 Difference]: Start difference. First operand 28673 states and 152375 transitions. Second operand 7 states. [2020-10-15 18:43:00,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:43:00,985 INFO L93 Difference]: Finished difference Result 68538 states and 323189 transitions. [2020-10-15 18:43:00,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:43:00,986 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 18:43:00,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:43:01,199 INFO L225 Difference]: With dead ends: 68538 [2020-10-15 18:43:01,199 INFO L226 Difference]: Without dead ends: 68505 [2020-10-15 18:43:01,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:43:02,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68505 states. [2020-10-15 18:43:02,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68505 to 28061. [2020-10-15 18:43:02,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28061 states. [2020-10-15 18:43:02,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28061 states to 28061 states and 149307 transitions. [2020-10-15 18:43:02,935 INFO L78 Accepts]: Start accepts. Automaton has 28061 states and 149307 transitions. Word has length 19 [2020-10-15 18:43:02,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:43:02,935 INFO L481 AbstractCegarLoop]: Abstraction has 28061 states and 149307 transitions. [2020-10-15 18:43:02,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:43:02,935 INFO L276 IsEmpty]: Start isEmpty. Operand 28061 states and 149307 transitions. [2020-10-15 18:43:02,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 18:43:02,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:43:02,936 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:43:02,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2020-10-15 18:43:02,936 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:43:02,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:43:02,936 INFO L82 PathProgramCache]: Analyzing trace with hash -2138444729, now seen corresponding path program 1 times [2020-10-15 18:43:02,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:43:02,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871625951] [2020-10-15 18:43:02,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:43:02,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:43:02,965 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:43:02,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871625951] [2020-10-15 18:43:02,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:43:02,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:43:02,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540500483] [2020-10-15 18:43:02,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:43:02,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:43:02,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:43:02,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:43:02,967 INFO L87 Difference]: Start difference. First operand 28061 states and 149307 transitions. Second operand 7 states. [2020-10-15 18:43:03,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:43:03,502 INFO L93 Difference]: Finished difference Result 69070 states and 326154 transitions. [2020-10-15 18:43:03,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:43:03,503 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 18:43:03,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:43:03,702 INFO L225 Difference]: With dead ends: 69070 [2020-10-15 18:43:03,702 INFO L226 Difference]: Without dead ends: 69037 [2020-10-15 18:43:03,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:43:04,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69037 states. [2020-10-15 18:43:07,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69037 to 28938. [2020-10-15 18:43:07,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28938 states. [2020-10-15 18:43:07,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28938 states to 28938 states and 153909 transitions. [2020-10-15 18:43:07,994 INFO L78 Accepts]: Start accepts. Automaton has 28938 states and 153909 transitions. Word has length 19 [2020-10-15 18:43:07,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:43:07,994 INFO L481 AbstractCegarLoop]: Abstraction has 28938 states and 153909 transitions. [2020-10-15 18:43:07,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:43:07,994 INFO L276 IsEmpty]: Start isEmpty. Operand 28938 states and 153909 transitions. [2020-10-15 18:43:07,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 18:43:07,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:43:07,995 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:43:07,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2020-10-15 18:43:07,995 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:43:07,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:43:07,995 INFO L82 PathProgramCache]: Analyzing trace with hash -2117255609, now seen corresponding path program 2 times [2020-10-15 18:43:07,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:43:07,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225625064] [2020-10-15 18:43:07,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:43:07,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:43:08,025 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:43:08,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225625064] [2020-10-15 18:43:08,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:43:08,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:43:08,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517028649] [2020-10-15 18:43:08,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:43:08,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:43:08,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:43:08,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:43:08,027 INFO L87 Difference]: Start difference. First operand 28938 states and 153909 transitions. Second operand 7 states. [2020-10-15 18:43:08,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:43:08,547 INFO L93 Difference]: Finished difference Result 70096 states and 331298 transitions. [2020-10-15 18:43:08,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:43:08,547 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 18:43:08,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:43:08,738 INFO L225 Difference]: With dead ends: 70096 [2020-10-15 18:43:08,739 INFO L226 Difference]: Without dead ends: 70063 [2020-10-15 18:43:08,739 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:43:09,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70063 states. [2020-10-15 18:43:10,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70063 to 29094. [2020-10-15 18:43:10,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29094 states. [2020-10-15 18:43:10,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29094 states to 29094 states and 154883 transitions. [2020-10-15 18:43:10,380 INFO L78 Accepts]: Start accepts. Automaton has 29094 states and 154883 transitions. Word has length 19 [2020-10-15 18:43:10,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:43:10,380 INFO L481 AbstractCegarLoop]: Abstraction has 29094 states and 154883 transitions. [2020-10-15 18:43:10,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:43:10,380 INFO L276 IsEmpty]: Start isEmpty. Operand 29094 states and 154883 transitions. [2020-10-15 18:43:10,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 18:43:10,381 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:43:10,381 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:43:10,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2020-10-15 18:43:10,381 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:43:10,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:43:10,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1393024961, now seen corresponding path program 1 times [2020-10-15 18:43:10,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:43:10,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572426625] [2020-10-15 18:43:10,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:43:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:43:10,435 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 18:43:10,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572426625] [2020-10-15 18:43:10,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766932275] [2020-10-15 18:43:10,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:43:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:43:10,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:43:10,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:43:10,538 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 18:43:10,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:43:10,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:43:10,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794450866] [2020-10-15 18:43:10,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:43:10,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:43:10,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:43:10,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:43:10,539 INFO L87 Difference]: Start difference. First operand 29094 states and 154883 transitions. Second operand 11 states. [2020-10-15 18:43:11,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:43:11,577 INFO L93 Difference]: Finished difference Result 100731 states and 448596 transitions. [2020-10-15 18:43:11,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:43:11,578 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 18:43:11,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:43:11,851 INFO L225 Difference]: With dead ends: 100731 [2020-10-15 18:43:11,852 INFO L226 Difference]: Without dead ends: 100715 [2020-10-15 18:43:11,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:43:12,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100715 states. [2020-10-15 18:43:14,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100715 to 28723. [2020-10-15 18:43:14,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28723 states. [2020-10-15 18:43:14,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28723 states to 28723 states and 152772 transitions. [2020-10-15 18:43:14,741 INFO L78 Accepts]: Start accepts. Automaton has 28723 states and 152772 transitions. Word has length 21 [2020-10-15 18:43:14,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:43:14,741 INFO L481 AbstractCegarLoop]: Abstraction has 28723 states and 152772 transitions. [2020-10-15 18:43:14,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:43:14,741 INFO L276 IsEmpty]: Start isEmpty. Operand 28723 states and 152772 transitions. [2020-10-15 18:43:14,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 18:43:14,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:43:14,742 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:43:14,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:43:14,943 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:43:14,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:43:14,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1414214081, now seen corresponding path program 2 times [2020-10-15 18:43:14,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:43:14,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311865472] [2020-10-15 18:43:14,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:43:14,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:43:14,989 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 18:43:14,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311865472] [2020-10-15 18:43:14,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095542955] [2020-10-15 18:43:14,990 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:43:15,076 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 18:43:15,077 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:43:15,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:43:15,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:43:15,096 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 18:43:15,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:43:15,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:43:15,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751032316] [2020-10-15 18:43:15,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:43:15,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:43:15,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:43:15,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:43:15,097 INFO L87 Difference]: Start difference. First operand 28723 states and 152772 transitions. Second operand 11 states. [2020-10-15 18:43:16,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:43:16,172 INFO L93 Difference]: Finished difference Result 99884 states and 444368 transitions. [2020-10-15 18:43:16,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:43:16,172 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 18:43:16,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:43:16,477 INFO L225 Difference]: With dead ends: 99884 [2020-10-15 18:43:16,477 INFO L226 Difference]: Without dead ends: 99863 [2020-10-15 18:43:16,478 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:43:17,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99863 states. [2020-10-15 18:43:18,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99863 to 28343. [2020-10-15 18:43:18,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28343 states. [2020-10-15 18:43:18,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28343 states to 28343 states and 150639 transitions. [2020-10-15 18:43:18,637 INFO L78 Accepts]: Start accepts. Automaton has 28343 states and 150639 transitions. Word has length 21 [2020-10-15 18:43:18,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:43:18,637 INFO L481 AbstractCegarLoop]: Abstraction has 28343 states and 150639 transitions. [2020-10-15 18:43:18,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:43:18,637 INFO L276 IsEmpty]: Start isEmpty. Operand 28343 states and 150639 transitions. [2020-10-15 18:43:18,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 18:43:18,638 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:43:18,638 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:43:18,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2020-10-15 18:43:18,839 INFO L429 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:43:18,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:43:18,840 INFO L82 PathProgramCache]: Analyzing trace with hash -2073547329, now seen corresponding path program 3 times [2020-10-15 18:43:18,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:43:18,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140677603] [2020-10-15 18:43:18,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:43:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:43:18,885 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:43:18,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140677603] [2020-10-15 18:43:18,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:43:18,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:43:18,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311575525] [2020-10-15 18:43:18,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:43:18,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:43:18,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:43:18,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:43:18,887 INFO L87 Difference]: Start difference. First operand 28343 states and 150639 transitions. Second operand 9 states. [2020-10-15 18:43:19,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:43:19,928 INFO L93 Difference]: Finished difference Result 100063 states and 445271 transitions. [2020-10-15 18:43:19,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:43:19,928 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-15 18:43:19,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:43:20,873 INFO L225 Difference]: With dead ends: 100063 [2020-10-15 18:43:20,873 INFO L226 Difference]: Without dead ends: 100047 [2020-10-15 18:43:20,873 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:43:21,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100047 states. [2020-10-15 18:43:22,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100047 to 27662. [2020-10-15 18:43:22,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27662 states. [2020-10-15 18:43:22,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27662 states to 27662 states and 147100 transitions. [2020-10-15 18:43:22,958 INFO L78 Accepts]: Start accepts. Automaton has 27662 states and 147100 transitions. Word has length 21 [2020-10-15 18:43:22,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:43:22,959 INFO L481 AbstractCegarLoop]: Abstraction has 27662 states and 147100 transitions. [2020-10-15 18:43:22,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:43:22,959 INFO L276 IsEmpty]: Start isEmpty. Operand 27662 states and 147100 transitions. [2020-10-15 18:43:22,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 18:43:22,960 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:43:22,960 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:43:22,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2020-10-15 18:43:22,960 INFO L429 AbstractCegarLoop]: === Iteration 14 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:43:22,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:43:22,960 INFO L82 PathProgramCache]: Analyzing trace with hash -2051019009, now seen corresponding path program 4 times [2020-10-15 18:43:22,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:43:22,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154819385] [2020-10-15 18:43:22,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:43:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:43:23,008 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:43:23,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154819385] [2020-10-15 18:43:23,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:43:23,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:43:23,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375781933] [2020-10-15 18:43:23,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:43:23,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:43:23,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:43:23,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:43:23,010 INFO L87 Difference]: Start difference. First operand 27662 states and 147100 transitions. Second operand 9 states. [2020-10-15 18:43:24,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:43:24,029 INFO L93 Difference]: Finished difference Result 99531 states and 442783 transitions. [2020-10-15 18:43:24,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:43:24,030 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-15 18:43:24,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:43:24,307 INFO L225 Difference]: With dead ends: 99531 [2020-10-15 18:43:24,308 INFO L226 Difference]: Without dead ends: 99510 [2020-10-15 18:43:24,308 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:43:25,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99510 states. [2020-10-15 18:43:26,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99510 to 27286. [2020-10-15 18:43:26,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27286 states. [2020-10-15 18:43:26,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27286 states to 27286 states and 144979 transitions. [2020-10-15 18:43:26,445 INFO L78 Accepts]: Start accepts. Automaton has 27286 states and 144979 transitions. Word has length 21 [2020-10-15 18:43:26,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:43:26,445 INFO L481 AbstractCegarLoop]: Abstraction has 27286 states and 144979 transitions. [2020-10-15 18:43:26,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:43:26,445 INFO L276 IsEmpty]: Start isEmpty. Operand 27286 states and 144979 transitions. [2020-10-15 18:43:26,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 18:43:26,446 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:43:26,446 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:43:26,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2020-10-15 18:43:26,446 INFO L429 AbstractCegarLoop]: === Iteration 15 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:43:26,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:43:26,446 INFO L82 PathProgramCache]: Analyzing trace with hash 102150333, now seen corresponding path program 1 times [2020-10-15 18:43:26,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:43:26,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712178765] [2020-10-15 18:43:26,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:43:26,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:43:26,464 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:43:26,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712178765] [2020-10-15 18:43:26,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:43:26,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:43:26,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107991933] [2020-10-15 18:43:26,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:43:26,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:43:26,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:43:26,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:43:26,466 INFO L87 Difference]: Start difference. First operand 27286 states and 144979 transitions. Second operand 5 states. [2020-10-15 18:43:27,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:43:27,151 INFO L93 Difference]: Finished difference Result 49004 states and 248721 transitions. [2020-10-15 18:43:27,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:43:27,152 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-15 18:43:27,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:43:27,301 INFO L225 Difference]: With dead ends: 49004 [2020-10-15 18:43:27,301 INFO L226 Difference]: Without dead ends: 48958 [2020-10-15 18:43:27,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:43:27,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48958 states. [2020-10-15 18:43:28,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48958 to 33985. [2020-10-15 18:43:28,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33985 states. [2020-10-15 18:43:28,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33985 states to 33985 states and 181777 transitions. [2020-10-15 18:43:28,733 INFO L78 Accepts]: Start accepts. Automaton has 33985 states and 181777 transitions. Word has length 21 [2020-10-15 18:43:28,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:43:28,733 INFO L481 AbstractCegarLoop]: Abstraction has 33985 states and 181777 transitions. [2020-10-15 18:43:28,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:43:28,733 INFO L276 IsEmpty]: Start isEmpty. Operand 33985 states and 181777 transitions. [2020-10-15 18:43:28,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 18:43:28,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:43:28,734 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:43:28,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2020-10-15 18:43:28,734 INFO L429 AbstractCegarLoop]: === Iteration 16 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:43:28,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:43:28,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1130516927, now seen corresponding path program 5 times [2020-10-15 18:43:28,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:43:28,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845310444] [2020-10-15 18:43:28,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:43:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:43:28,774 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:43:28,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845310444] [2020-10-15 18:43:28,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:43:28,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:43:28,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014907172] [2020-10-15 18:43:28,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:43:28,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:43:28,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:43:28,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:43:28,776 INFO L87 Difference]: Start difference. First operand 33985 states and 181777 transitions. Second operand 9 states. [2020-10-15 18:43:29,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:43:29,906 INFO L93 Difference]: Finished difference Result 115592 states and 523747 transitions. [2020-10-15 18:43:29,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:43:29,906 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-15 18:43:29,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:43:30,240 INFO L225 Difference]: With dead ends: 115592 [2020-10-15 18:43:30,240 INFO L226 Difference]: Without dead ends: 115567 [2020-10-15 18:43:30,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:43:31,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115567 states. [2020-10-15 18:43:32,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115567 to 33074. [2020-10-15 18:43:32,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33074 states. [2020-10-15 18:43:32,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33074 states to 33074 states and 176935 transitions. [2020-10-15 18:43:32,833 INFO L78 Accepts]: Start accepts. Automaton has 33074 states and 176935 transitions. Word has length 21 [2020-10-15 18:43:32,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:43:32,833 INFO L481 AbstractCegarLoop]: Abstraction has 33074 states and 176935 transitions. [2020-10-15 18:43:32,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:43:32,834 INFO L276 IsEmpty]: Start isEmpty. Operand 33074 states and 176935 transitions. [2020-10-15 18:43:32,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 18:43:32,835 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:43:32,835 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:43:32,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2020-10-15 18:43:32,835 INFO L429 AbstractCegarLoop]: === Iteration 17 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:43:32,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:43:32,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1131856127, now seen corresponding path program 6 times [2020-10-15 18:43:32,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:43:32,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914986511] [2020-10-15 18:43:32,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:43:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:43:32,877 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:43:32,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914986511] [2020-10-15 18:43:32,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:43:32,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:43:32,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728041632] [2020-10-15 18:43:32,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:43:32,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:43:32,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:43:32,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:43:32,879 INFO L87 Difference]: Start difference. First operand 33074 states and 176935 transitions. Second operand 9 states. [2020-10-15 18:43:34,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:43:34,016 INFO L93 Difference]: Finished difference Result 114402 states and 517732 transitions. [2020-10-15 18:43:34,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:43:34,016 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-15 18:43:34,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:43:34,987 INFO L225 Difference]: With dead ends: 114402 [2020-10-15 18:43:34,987 INFO L226 Difference]: Without dead ends: 114371 [2020-10-15 18:43:34,988 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:43:36,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114371 states. [2020-10-15 18:43:37,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114371 to 31960. [2020-10-15 18:43:37,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31960 states. [2020-10-15 18:43:37,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31960 states to 31960 states and 171209 transitions. [2020-10-15 18:43:37,472 INFO L78 Accepts]: Start accepts. Automaton has 31960 states and 171209 transitions. Word has length 21 [2020-10-15 18:43:37,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:43:37,472 INFO L481 AbstractCegarLoop]: Abstraction has 31960 states and 171209 transitions. [2020-10-15 18:43:37,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:43:37,472 INFO L276 IsEmpty]: Start isEmpty. Operand 31960 states and 171209 transitions. [2020-10-15 18:43:37,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 18:43:37,474 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:43:37,474 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:43:37,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2020-10-15 18:43:37,474 INFO L429 AbstractCegarLoop]: === Iteration 18 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:43:37,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:43:37,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1106577557, now seen corresponding path program 1 times [2020-10-15 18:43:37,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:43:37,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070062035] [2020-10-15 18:43:37,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:43:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:43:37,513 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:43:37,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070062035] [2020-10-15 18:43:37,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689244557] [2020-10-15 18:43:37,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:43:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:43:37,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 18:43:37,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:43:37,628 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:43:37,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:43:37,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 18:43:37,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923221234] [2020-10-15 18:43:37,629 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:43:37,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:43:37,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:43:37,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:43:37,629 INFO L87 Difference]: Start difference. First operand 31960 states and 171209 transitions. Second operand 9 states. [2020-10-15 18:43:38,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:43:38,285 INFO L93 Difference]: Finished difference Result 75380 states and 361389 transitions. [2020-10-15 18:43:38,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:43:38,286 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-15 18:43:38,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:43:38,525 INFO L225 Difference]: With dead ends: 75380 [2020-10-15 18:43:38,525 INFO L226 Difference]: Without dead ends: 75344 [2020-10-15 18:43:38,526 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 18:43:39,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75344 states. [2020-10-15 18:43:40,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75344 to 32974. [2020-10-15 18:43:40,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32974 states. [2020-10-15 18:43:40,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32974 states to 32974 states and 176363 transitions. [2020-10-15 18:43:40,376 INFO L78 Accepts]: Start accepts. Automaton has 32974 states and 176363 transitions. Word has length 23 [2020-10-15 18:43:40,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:43:40,376 INFO L481 AbstractCegarLoop]: Abstraction has 32974 states and 176363 transitions. [2020-10-15 18:43:40,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:43:40,376 INFO L276 IsEmpty]: Start isEmpty. Operand 32974 states and 176363 transitions. [2020-10-15 18:43:40,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 18:43:40,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:43:40,378 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:43:40,578 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:43:40,579 INFO L429 AbstractCegarLoop]: === Iteration 19 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:43:40,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:43:40,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1026706248, now seen corresponding path program 1 times [2020-10-15 18:43:40,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:43:40,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551354601] [2020-10-15 18:43:40,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:43:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:43:40,611 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:43:40,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551354601] [2020-10-15 18:43:40,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340682082] [2020-10-15 18:43:40,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:43:40,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:43:40,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 18:43:40,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:43:40,711 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:43:40,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:43:40,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 18:43:40,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549049343] [2020-10-15 18:43:40,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:43:40,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:43:40,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:43:40,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:43:40,713 INFO L87 Difference]: Start difference. First operand 32974 states and 176363 transitions. Second operand 9 states. [2020-10-15 18:43:41,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:43:41,353 INFO L93 Difference]: Finished difference Result 79463 states and 381713 transitions. [2020-10-15 18:43:41,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:43:41,353 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-15 18:43:41,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:43:41,599 INFO L225 Difference]: With dead ends: 79463 [2020-10-15 18:43:41,599 INFO L226 Difference]: Without dead ends: 79421 [2020-10-15 18:43:41,600 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 18:43:43,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79421 states. [2020-10-15 18:43:43,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79421 to 33977. [2020-10-15 18:43:43,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33977 states. [2020-10-15 18:43:44,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33977 states to 33977 states and 181698 transitions. [2020-10-15 18:43:44,023 INFO L78 Accepts]: Start accepts. Automaton has 33977 states and 181698 transitions. Word has length 23 [2020-10-15 18:43:44,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:43:44,023 INFO L481 AbstractCegarLoop]: Abstraction has 33977 states and 181698 transitions. [2020-10-15 18:43:44,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:43:44,023 INFO L276 IsEmpty]: Start isEmpty. Operand 33977 states and 181698 transitions. [2020-10-15 18:43:44,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 18:43:44,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:43:44,025 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:43:44,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,37 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:43:44,226 INFO L429 AbstractCegarLoop]: === Iteration 20 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:43:44,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:43:44,226 INFO L82 PathProgramCache]: Analyzing trace with hash -617779723, now seen corresponding path program 2 times [2020-10-15 18:43:44,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:43:44,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304959390] [2020-10-15 18:43:44,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:43:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:43:44,258 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:43:44,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304959390] [2020-10-15 18:43:44,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:43:44,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:43:44,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943691497] [2020-10-15 18:43:44,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:43:44,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:43:44,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:43:44,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:43:44,260 INFO L87 Difference]: Start difference. First operand 33977 states and 181698 transitions. Second operand 7 states. [2020-10-15 18:43:44,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:43:44,869 INFO L93 Difference]: Finished difference Result 80867 states and 388763 transitions. [2020-10-15 18:43:44,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:43:44,870 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-15 18:43:44,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:43:45,093 INFO L225 Difference]: With dead ends: 80867 [2020-10-15 18:43:45,093 INFO L226 Difference]: Without dead ends: 80812 [2020-10-15 18:43:45,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:43:45,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80812 states. [2020-10-15 18:43:46,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80812 to 34223. [2020-10-15 18:43:46,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34223 states. [2020-10-15 18:43:46,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34223 states to 34223 states and 183033 transitions. [2020-10-15 18:43:46,961 INFO L78 Accepts]: Start accepts. Automaton has 34223 states and 183033 transitions. Word has length 23 [2020-10-15 18:43:46,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:43:46,961 INFO L481 AbstractCegarLoop]: Abstraction has 34223 states and 183033 transitions. [2020-10-15 18:43:46,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:43:46,962 INFO L276 IsEmpty]: Start isEmpty. Operand 34223 states and 183033 transitions. [2020-10-15 18:43:46,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 18:43:46,963 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:43:46,963 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:43:46,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2020-10-15 18:43:46,964 INFO L429 AbstractCegarLoop]: === Iteration 21 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:43:46,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:43:46,964 INFO L82 PathProgramCache]: Analyzing trace with hash -617778328, now seen corresponding path program 2 times [2020-10-15 18:43:46,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:43:46,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11296120] [2020-10-15 18:43:46,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:43:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:43:46,997 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:43:46,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11296120] [2020-10-15 18:43:46,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:43:46,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:43:46,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808662597] [2020-10-15 18:43:46,999 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:43:46,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:43:46,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:43:46,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:43:46,999 INFO L87 Difference]: Start difference. First operand 34223 states and 183033 transitions. Second operand 7 states. [2020-10-15 18:43:48,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:43:48,004 INFO L93 Difference]: Finished difference Result 80887 states and 388540 transitions. [2020-10-15 18:43:48,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:43:48,005 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-15 18:43:48,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:43:48,249 INFO L225 Difference]: With dead ends: 80887 [2020-10-15 18:43:48,249 INFO L226 Difference]: Without dead ends: 80832 [2020-10-15 18:43:48,249 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:43:49,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80832 states. [2020-10-15 18:43:50,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80832 to 34508. [2020-10-15 18:43:50,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34508 states. [2020-10-15 18:43:50,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34508 states to 34508 states and 184670 transitions. [2020-10-15 18:43:50,149 INFO L78 Accepts]: Start accepts. Automaton has 34508 states and 184670 transitions. Word has length 23 [2020-10-15 18:43:50,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:43:50,149 INFO L481 AbstractCegarLoop]: Abstraction has 34508 states and 184670 transitions. [2020-10-15 18:43:50,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:43:50,149 INFO L276 IsEmpty]: Start isEmpty. Operand 34508 states and 184670 transitions. [2020-10-15 18:43:50,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 18:43:50,151 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:43:50,151 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:43:50,151 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2020-10-15 18:43:50,151 INFO L429 AbstractCegarLoop]: === Iteration 22 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:43:50,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:43:50,151 INFO L82 PathProgramCache]: Analyzing trace with hash -617756256, now seen corresponding path program 1 times [2020-10-15 18:43:50,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:43:50,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044692181] [2020-10-15 18:43:50,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:43:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:43:50,667 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2020-10-15 18:43:50,687 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:43:50,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044692181] [2020-10-15 18:43:50,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:43:50,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:43:50,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331164105] [2020-10-15 18:43:50,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:43:50,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:43:50,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:43:50,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:43:50,689 INFO L87 Difference]: Start difference. First operand 34508 states and 184670 transitions. Second operand 7 states. [2020-10-15 18:43:51,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:43:51,329 INFO L93 Difference]: Finished difference Result 83313 states and 401031 transitions. [2020-10-15 18:43:51,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:43:51,329 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-15 18:43:51,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:43:51,570 INFO L225 Difference]: With dead ends: 83313 [2020-10-15 18:43:51,570 INFO L226 Difference]: Without dead ends: 83258 [2020-10-15 18:43:51,570 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:43:52,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83258 states. [2020-10-15 18:43:53,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83258 to 36258. [2020-10-15 18:43:53,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36258 states. [2020-10-15 18:43:53,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36258 states to 36258 states and 193887 transitions. [2020-10-15 18:43:53,614 INFO L78 Accepts]: Start accepts. Automaton has 36258 states and 193887 transitions. Word has length 23 [2020-10-15 18:43:53,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:43:53,614 INFO L481 AbstractCegarLoop]: Abstraction has 36258 states and 193887 transitions. [2020-10-15 18:43:53,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:43:53,614 INFO L276 IsEmpty]: Start isEmpty. Operand 36258 states and 193887 transitions. [2020-10-15 18:43:53,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 18:43:53,616 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:43:53,616 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:43:53,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2020-10-15 18:43:53,616 INFO L429 AbstractCegarLoop]: === Iteration 23 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:43:53,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:43:53,616 INFO L82 PathProgramCache]: Analyzing trace with hash -581716896, now seen corresponding path program 2 times [2020-10-15 18:43:53,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:43:53,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208447507] [2020-10-15 18:43:53,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:43:53,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:43:53,647 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:43:53,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208447507] [2020-10-15 18:43:53,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:43:53,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:43:53,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108478913] [2020-10-15 18:43:53,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:43:53,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:43:53,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:43:53,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:43:53,648 INFO L87 Difference]: Start difference. First operand 36258 states and 193887 transitions. Second operand 7 states. [2020-10-15 18:43:54,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:43:54,303 INFO L93 Difference]: Finished difference Result 84364 states and 406246 transitions. [2020-10-15 18:43:54,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:43:54,303 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-15 18:43:54,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:43:54,557 INFO L225 Difference]: With dead ends: 84364 [2020-10-15 18:43:54,557 INFO L226 Difference]: Without dead ends: 84309 [2020-10-15 18:43:54,558 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:43:55,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84309 states. [2020-10-15 18:43:56,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84309 to 37062. [2020-10-15 18:43:56,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37062 states. [2020-10-15 18:43:56,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37062 states to 37062 states and 198528 transitions. [2020-10-15 18:43:56,680 INFO L78 Accepts]: Start accepts. Automaton has 37062 states and 198528 transitions. Word has length 23 [2020-10-15 18:43:56,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:43:56,680 INFO L481 AbstractCegarLoop]: Abstraction has 37062 states and 198528 transitions. [2020-10-15 18:43:56,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:43:56,680 INFO L276 IsEmpty]: Start isEmpty. Operand 37062 states and 198528 transitions. [2020-10-15 18:43:56,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:43:56,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:43:56,683 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:43:56,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2020-10-15 18:43:56,683 INFO L429 AbstractCegarLoop]: === Iteration 24 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:43:56,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:43:56,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1745706838, now seen corresponding path program 1 times [2020-10-15 18:43:56,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:43:56,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693475972] [2020-10-15 18:43:56,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:43:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:43:56,734 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:43:56,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693475972] [2020-10-15 18:43:56,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336317988] [2020-10-15 18:43:56,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:43:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:43:56,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:43:56,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:43:56,858 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:43:56,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:43:56,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:43:56,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224380584] [2020-10-15 18:43:56,859 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:43:56,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:43:56,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:43:56,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:43:56,860 INFO L87 Difference]: Start difference. First operand 37062 states and 198528 transitions. Second operand 11 states. [2020-10-15 18:43:58,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:43:58,079 INFO L93 Difference]: Finished difference Result 122892 states and 561130 transitions. [2020-10-15 18:43:58,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:43:58,080 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 18:43:58,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:43:58,434 INFO L225 Difference]: With dead ends: 122892 [2020-10-15 18:43:58,434 INFO L226 Difference]: Without dead ends: 122862 [2020-10-15 18:43:58,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:44:00,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122862 states. [2020-10-15 18:44:01,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122862 to 36735. [2020-10-15 18:44:01,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36735 states. [2020-10-15 18:44:01,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36735 states to 36735 states and 196486 transitions. [2020-10-15 18:44:01,782 INFO L78 Accepts]: Start accepts. Automaton has 36735 states and 196486 transitions. Word has length 25 [2020-10-15 18:44:01,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:44:01,782 INFO L481 AbstractCegarLoop]: Abstraction has 36735 states and 196486 transitions. [2020-10-15 18:44:01,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:44:01,782 INFO L276 IsEmpty]: Start isEmpty. Operand 36735 states and 196486 transitions. [2020-10-15 18:44:01,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:44:01,785 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:44:01,785 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:44:01,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable98 [2020-10-15 18:44:01,992 INFO L429 AbstractCegarLoop]: === Iteration 25 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:44:01,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:44:01,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1730856598, now seen corresponding path program 2 times [2020-10-15 18:44:01,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:44:01,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234637349] [2020-10-15 18:44:01,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:44:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:44:02,040 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:44:02,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234637349] [2020-10-15 18:44:02,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009875447] [2020-10-15 18:44:02,041 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:44:02,126 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 18:44:02,127 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:44:02,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:44:02,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:44:02,148 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:44:02,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:44:02,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:44:02,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500752453] [2020-10-15 18:44:02,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:44:02,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:44:02,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:44:02,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:44:02,149 INFO L87 Difference]: Start difference. First operand 36735 states and 196486 transitions. Second operand 11 states. [2020-10-15 18:44:03,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:44:03,362 INFO L93 Difference]: Finished difference Result 121506 states and 554103 transitions. [2020-10-15 18:44:03,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:44:03,362 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 18:44:03,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:44:03,703 INFO L225 Difference]: With dead ends: 121506 [2020-10-15 18:44:03,704 INFO L226 Difference]: Without dead ends: 121473 [2020-10-15 18:44:03,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:44:04,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121473 states. [2020-10-15 18:44:06,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121473 to 36666. [2020-10-15 18:44:06,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36666 states. [2020-10-15 18:44:06,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36666 states to 36666 states and 195964 transitions. [2020-10-15 18:44:06,479 INFO L78 Accepts]: Start accepts. Automaton has 36666 states and 195964 transitions. Word has length 25 [2020-10-15 18:44:06,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:44:06,480 INFO L481 AbstractCegarLoop]: Abstraction has 36666 states and 195964 transitions. [2020-10-15 18:44:06,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:44:06,480 INFO L276 IsEmpty]: Start isEmpty. Operand 36666 states and 195964 transitions. [2020-10-15 18:44:06,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:44:06,484 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:44:06,484 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:44:06,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99,39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:44:06,685 INFO L429 AbstractCegarLoop]: === Iteration 26 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:44:06,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:44:06,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1730878670, now seen corresponding path program 1 times [2020-10-15 18:44:06,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:44:06,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906525781] [2020-10-15 18:44:06,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:44:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:44:06,734 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:44:06,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906525781] [2020-10-15 18:44:06,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736148180] [2020-10-15 18:44:06,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:44:06,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:44:06,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:44:06,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:44:06,840 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:44:06,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:44:06,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:44:06,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936933913] [2020-10-15 18:44:06,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:44:06,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:44:06,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:44:06,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:44:06,841 INFO L87 Difference]: Start difference. First operand 36666 states and 195964 transitions. Second operand 11 states. [2020-10-15 18:44:07,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:44:07,996 INFO L93 Difference]: Finished difference Result 120500 states and 549397 transitions. [2020-10-15 18:44:07,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:44:07,997 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 18:44:07,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:44:08,326 INFO L225 Difference]: With dead ends: 120500 [2020-10-15 18:44:08,327 INFO L226 Difference]: Without dead ends: 120470 [2020-10-15 18:44:08,327 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:44:10,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120470 states. [2020-10-15 18:44:11,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120470 to 36343. [2020-10-15 18:44:11,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36343 states. [2020-10-15 18:44:11,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36343 states to 36343 states and 194056 transitions. [2020-10-15 18:44:11,451 INFO L78 Accepts]: Start accepts. Automaton has 36343 states and 194056 transitions. Word has length 25 [2020-10-15 18:44:11,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:44:11,451 INFO L481 AbstractCegarLoop]: Abstraction has 36343 states and 194056 transitions. [2020-10-15 18:44:11,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:44:11,451 INFO L276 IsEmpty]: Start isEmpty. Operand 36343 states and 194056 transitions. [2020-10-15 18:44:11,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:44:11,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:44:11,454 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:44:11,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2020-10-15 18:44:11,654 INFO L429 AbstractCegarLoop]: === Iteration 27 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:44:11,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:44:11,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1766918030, now seen corresponding path program 2 times [2020-10-15 18:44:11,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:44:11,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312271085] [2020-10-15 18:44:11,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:44:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:44:11,701 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:44:11,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312271085] [2020-10-15 18:44:11,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031390886] [2020-10-15 18:44:11,701 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:44:11,786 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 18:44:11,786 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:44:11,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:44:11,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:44:11,814 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:44:11,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:44:11,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:44:11,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663918253] [2020-10-15 18:44:11,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:44:11,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:44:11,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:44:11,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:44:11,815 INFO L87 Difference]: Start difference. First operand 36343 states and 194056 transitions. Second operand 11 states. [2020-10-15 18:44:12,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:44:12,956 INFO L93 Difference]: Finished difference Result 119731 states and 545560 transitions. [2020-10-15 18:44:12,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:44:12,956 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 18:44:12,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:44:13,286 INFO L225 Difference]: With dead ends: 119731 [2020-10-15 18:44:13,287 INFO L226 Difference]: Without dead ends: 119698 [2020-10-15 18:44:13,287 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:44:14,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119698 states. [2020-10-15 18:44:15,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119698 to 36040. [2020-10-15 18:44:15,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36040 states. [2020-10-15 18:44:15,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36040 states to 36040 states and 192287 transitions. [2020-10-15 18:44:15,873 INFO L78 Accepts]: Start accepts. Automaton has 36040 states and 192287 transitions. Word has length 25 [2020-10-15 18:44:15,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:44:15,874 INFO L481 AbstractCegarLoop]: Abstraction has 36040 states and 192287 transitions. [2020-10-15 18:44:15,874 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:44:15,874 INFO L276 IsEmpty]: Start isEmpty. Operand 36040 states and 192287 transitions. [2020-10-15 18:44:15,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:44:15,876 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:44:15,876 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:44:16,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:44:16,077 INFO L429 AbstractCegarLoop]: === Iteration 28 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:44:16,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:44:16,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1849107924, now seen corresponding path program 3 times [2020-10-15 18:44:16,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:44:16,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774873612] [2020-10-15 18:44:16,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:44:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:44:16,125 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:44:16,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774873612] [2020-10-15 18:44:16,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081653479] [2020-10-15 18:44:16,125 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:44:16,208 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-15 18:44:16,208 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:44:16,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:44:16,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:44:16,227 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:44:16,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:44:16,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:44:16,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307708573] [2020-10-15 18:44:16,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:44:16,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:44:16,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:44:16,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:44:16,229 INFO L87 Difference]: Start difference. First operand 36040 states and 192287 transitions. Second operand 11 states. [2020-10-15 18:44:17,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:44:17,440 INFO L93 Difference]: Finished difference Result 119762 states and 545615 transitions. [2020-10-15 18:44:17,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:44:17,440 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 18:44:17,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:44:17,787 INFO L225 Difference]: With dead ends: 119762 [2020-10-15 18:44:17,787 INFO L226 Difference]: Without dead ends: 119732 [2020-10-15 18:44:17,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:44:19,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119732 states. [2020-10-15 18:44:20,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119732 to 35475. [2020-10-15 18:44:20,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35475 states. [2020-10-15 18:44:20,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35475 states to 35475 states and 189246 transitions. [2020-10-15 18:44:20,941 INFO L78 Accepts]: Start accepts. Automaton has 35475 states and 189246 transitions. Word has length 25 [2020-10-15 18:44:20,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:44:20,941 INFO L481 AbstractCegarLoop]: Abstraction has 35475 states and 189246 transitions. [2020-10-15 18:44:20,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:44:20,942 INFO L276 IsEmpty]: Start isEmpty. Operand 35475 states and 189246 transitions. [2020-10-15 18:44:20,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:44:20,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:44:20,944 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:44:21,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2020-10-15 18:44:21,145 INFO L429 AbstractCegarLoop]: === Iteration 29 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:44:21,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:44:21,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1177775680, now seen corresponding path program 4 times [2020-10-15 18:44:21,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:44:21,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168458857] [2020-10-15 18:44:21,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:44:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:44:21,195 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:44:21,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168458857] [2020-10-15 18:44:21,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674132223] [2020-10-15 18:44:21,196 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:44:21,282 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 18:44:21,282 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:44:21,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:44:21,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:44:21,302 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:44:21,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:44:21,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:44:21,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836252657] [2020-10-15 18:44:21,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:44:21,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:44:21,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:44:21,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:44:21,303 INFO L87 Difference]: Start difference. First operand 35475 states and 189246 transitions. Second operand 11 states. [2020-10-15 18:44:22,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:44:22,562 INFO L93 Difference]: Finished difference Result 120788 states and 550630 transitions. [2020-10-15 18:44:22,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:44:22,562 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 18:44:22,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:44:22,888 INFO L225 Difference]: With dead ends: 120788 [2020-10-15 18:44:22,889 INFO L226 Difference]: Without dead ends: 120755 [2020-10-15 18:44:22,889 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:44:24,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120755 states. [2020-10-15 18:44:25,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120755 to 35406. [2020-10-15 18:44:25,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35406 states. [2020-10-15 18:44:25,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35406 states to 35406 states and 188724 transitions. [2020-10-15 18:44:25,434 INFO L78 Accepts]: Start accepts. Automaton has 35406 states and 188724 transitions. Word has length 25 [2020-10-15 18:44:25,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:44:25,435 INFO L481 AbstractCegarLoop]: Abstraction has 35406 states and 188724 transitions. [2020-10-15 18:44:25,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:44:25,435 INFO L276 IsEmpty]: Start isEmpty. Operand 35406 states and 188724 transitions. [2020-10-15 18:44:25,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:44:25,437 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:44:25,437 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:44:25,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2020-10-15 18:44:25,639 INFO L429 AbstractCegarLoop]: === Iteration 30 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:44:25,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:44:25,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1177752213, now seen corresponding path program 1 times [2020-10-15 18:44:25,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:44:25,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88786449] [2020-10-15 18:44:25,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:44:25,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:44:25,687 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:44:25,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88786449] [2020-10-15 18:44:25,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601123788] [2020-10-15 18:44:25,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:44:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:44:25,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:44:25,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:44:25,795 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:44:25,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:44:25,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:44:25,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972360344] [2020-10-15 18:44:25,796 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:44:25,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:44:25,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:44:25,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:44:25,796 INFO L87 Difference]: Start difference. First operand 35406 states and 188724 transitions. Second operand 11 states. [2020-10-15 18:44:27,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:44:27,055 INFO L93 Difference]: Finished difference Result 120291 states and 549128 transitions. [2020-10-15 18:44:27,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:44:27,055 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 18:44:27,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:44:28,059 INFO L225 Difference]: With dead ends: 120291 [2020-10-15 18:44:28,059 INFO L226 Difference]: Without dead ends: 120261 [2020-10-15 18:44:28,060 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:44:29,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120261 states. [2020-10-15 18:44:30,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120261 to 35196. [2020-10-15 18:44:30,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35196 states. [2020-10-15 18:44:30,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35196 states to 35196 states and 187476 transitions. [2020-10-15 18:44:30,503 INFO L78 Accepts]: Start accepts. Automaton has 35196 states and 187476 transitions. Word has length 25 [2020-10-15 18:44:30,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:44:30,503 INFO L481 AbstractCegarLoop]: Abstraction has 35196 states and 187476 transitions. [2020-10-15 18:44:30,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:44:30,503 INFO L276 IsEmpty]: Start isEmpty. Operand 35196 states and 187476 transitions. [2020-10-15 18:44:30,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:44:30,506 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:44:30,506 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:44:30,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:44:30,706 INFO L429 AbstractCegarLoop]: === Iteration 31 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:44:30,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:44:30,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1141712853, now seen corresponding path program 2 times [2020-10-15 18:44:30,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:44:30,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303271653] [2020-10-15 18:44:30,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:44:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:44:30,757 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:44:30,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303271653] [2020-10-15 18:44:30,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214359792] [2020-10-15 18:44:30,758 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:44:30,842 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 18:44:30,842 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:44:30,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:44:30,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:44:30,864 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:44:30,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:44:30,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:44:30,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251023349] [2020-10-15 18:44:30,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:44:30,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:44:30,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:44:30,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:44:30,866 INFO L87 Difference]: Start difference. First operand 35196 states and 187476 transitions. Second operand 11 states. [2020-10-15 18:44:31,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:44:31,996 INFO L93 Difference]: Finished difference Result 119264 states and 544110 transitions. [2020-10-15 18:44:31,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:44:31,997 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 18:44:31,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:44:32,336 INFO L225 Difference]: With dead ends: 119264 [2020-10-15 18:44:32,336 INFO L226 Difference]: Without dead ends: 119224 [2020-10-15 18:44:32,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:44:33,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119224 states. [2020-10-15 18:44:34,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119224 to 34815. [2020-10-15 18:44:34,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34815 states. [2020-10-15 18:44:34,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34815 states to 34815 states and 185342 transitions. [2020-10-15 18:44:34,875 INFO L78 Accepts]: Start accepts. Automaton has 34815 states and 185342 transitions. Word has length 25 [2020-10-15 18:44:34,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:44:34,875 INFO L481 AbstractCegarLoop]: Abstraction has 34815 states and 185342 transitions. [2020-10-15 18:44:34,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:44:34,875 INFO L276 IsEmpty]: Start isEmpty. Operand 34815 states and 185342 transitions. [2020-10-15 18:44:34,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:44:34,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:44:34,878 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:44:35,085 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2020-10-15 18:44:35,086 INFO L429 AbstractCegarLoop]: === Iteration 32 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:44:35,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:44:35,086 INFO L82 PathProgramCache]: Analyzing trace with hash -980827488, now seen corresponding path program 5 times [2020-10-15 18:44:35,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:44:35,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925500089] [2020-10-15 18:44:35,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:44:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:44:35,135 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:44:35,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925500089] [2020-10-15 18:44:35,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:44:35,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:44:35,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445994360] [2020-10-15 18:44:35,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:44:35,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:44:35,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:44:35,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:44:35,137 INFO L87 Difference]: Start difference. First operand 34815 states and 185342 transitions. Second operand 9 states. [2020-10-15 18:44:36,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:44:36,268 INFO L93 Difference]: Finished difference Result 119116 states and 542590 transitions. [2020-10-15 18:44:36,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:44:36,269 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 18:44:36,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:44:36,634 INFO L225 Difference]: With dead ends: 119116 [2020-10-15 18:44:36,635 INFO L226 Difference]: Without dead ends: 119086 [2020-10-15 18:44:36,635 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:44:38,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119086 states. [2020-10-15 18:44:39,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119086 to 34044. [2020-10-15 18:44:39,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34044 states. [2020-10-15 18:44:39,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34044 states to 34044 states and 181257 transitions. [2020-10-15 18:44:39,717 INFO L78 Accepts]: Start accepts. Automaton has 34044 states and 181257 transitions. Word has length 25 [2020-10-15 18:44:39,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:44:39,717 INFO L481 AbstractCegarLoop]: Abstraction has 34044 states and 181257 transitions. [2020-10-15 18:44:39,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:44:39,718 INFO L276 IsEmpty]: Start isEmpty. Operand 34044 states and 181257 transitions. [2020-10-15 18:44:39,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:44:39,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:44:39,720 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:44:39,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2020-10-15 18:44:39,720 INFO L429 AbstractCegarLoop]: === Iteration 33 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:44:39,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:44:39,721 INFO L82 PathProgramCache]: Analyzing trace with hash -980805416, now seen corresponding path program 3 times [2020-10-15 18:44:39,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:44:39,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788049555] [2020-10-15 18:44:39,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:44:39,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:44:39,774 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:44:39,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788049555] [2020-10-15 18:44:39,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:44:39,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:44:39,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195609278] [2020-10-15 18:44:39,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:44:39,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:44:39,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:44:39,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:44:39,776 INFO L87 Difference]: Start difference. First operand 34044 states and 181257 transitions. Second operand 9 states. [2020-10-15 18:44:40,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:44:40,998 INFO L93 Difference]: Finished difference Result 118392 states and 539774 transitions. [2020-10-15 18:44:40,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:44:40,999 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 18:44:40,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:44:41,375 INFO L225 Difference]: With dead ends: 118392 [2020-10-15 18:44:41,375 INFO L226 Difference]: Without dead ends: 118362 [2020-10-15 18:44:41,375 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:44:42,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118362 states. [2020-10-15 18:44:43,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118362 to 33530. [2020-10-15 18:44:43,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33530 states. [2020-10-15 18:44:43,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33530 states to 33530 states and 178563 transitions. [2020-10-15 18:44:43,893 INFO L78 Accepts]: Start accepts. Automaton has 33530 states and 178563 transitions. Word has length 25 [2020-10-15 18:44:43,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:44:43,893 INFO L481 AbstractCegarLoop]: Abstraction has 33530 states and 178563 transitions. [2020-10-15 18:44:43,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:44:43,893 INFO L276 IsEmpty]: Start isEmpty. Operand 33530 states and 178563 transitions. [2020-10-15 18:44:43,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:44:43,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:44:43,896 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:44:43,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2020-10-15 18:44:43,896 INFO L429 AbstractCegarLoop]: === Iteration 34 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:44:43,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:44:43,896 INFO L82 PathProgramCache]: Analyzing trace with hash -979488288, now seen corresponding path program 6 times [2020-10-15 18:44:43,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:44:43,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229763296] [2020-10-15 18:44:43,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:44:43,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:44:43,953 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:44:43,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229763296] [2020-10-15 18:44:43,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:44:43,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:44:43,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034905790] [2020-10-15 18:44:43,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:44:43,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:44:43,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:44:43,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:44:43,955 INFO L87 Difference]: Start difference. First operand 33530 states and 178563 transitions. Second operand 9 states. [2020-10-15 18:44:45,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:44:45,058 INFO L93 Difference]: Finished difference Result 116966 states and 531912 transitions. [2020-10-15 18:44:45,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:44:45,058 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 18:44:45,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:44:45,389 INFO L225 Difference]: With dead ends: 116966 [2020-10-15 18:44:45,390 INFO L226 Difference]: Without dead ends: 116926 [2020-10-15 18:44:45,390 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:44:47,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116926 states. [2020-10-15 18:44:48,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116926 to 32557. [2020-10-15 18:44:48,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32557 states. [2020-10-15 18:44:48,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32557 states to 32557 states and 173592 transitions. [2020-10-15 18:44:48,327 INFO L78 Accepts]: Start accepts. Automaton has 32557 states and 173592 transitions. Word has length 25 [2020-10-15 18:44:48,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:44:48,327 INFO L481 AbstractCegarLoop]: Abstraction has 32557 states and 173592 transitions. [2020-10-15 18:44:48,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:44:48,327 INFO L276 IsEmpty]: Start isEmpty. Operand 32557 states and 173592 transitions. [2020-10-15 18:44:48,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:44:48,329 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:44:48,329 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:44:48,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2020-10-15 18:44:48,330 INFO L429 AbstractCegarLoop]: === Iteration 35 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:44:48,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:44:48,330 INFO L82 PathProgramCache]: Analyzing trace with hash -979464821, now seen corresponding path program 3 times [2020-10-15 18:44:48,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:44:48,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644695672] [2020-10-15 18:44:48,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:44:48,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:44:48,377 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:44:48,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644695672] [2020-10-15 18:44:48,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:44:48,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:44:48,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477146452] [2020-10-15 18:44:48,378 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:44:48,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:44:48,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:44:48,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:44:48,379 INFO L87 Difference]: Start difference. First operand 32557 states and 173592 transitions. Second operand 9 states. [2020-10-15 18:44:49,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:44:49,520 INFO L93 Difference]: Finished difference Result 116421 states and 530054 transitions. [2020-10-15 18:44:49,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:44:49,521 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 18:44:49,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:44:49,900 INFO L225 Difference]: With dead ends: 116421 [2020-10-15 18:44:49,900 INFO L226 Difference]: Without dead ends: 116391 [2020-10-15 18:44:49,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:44:51,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116391 states. [2020-10-15 18:44:52,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116391 to 32226. [2020-10-15 18:44:52,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32226 states. [2020-10-15 18:44:52,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32226 states to 32226 states and 171898 transitions. [2020-10-15 18:44:52,398 INFO L78 Accepts]: Start accepts. Automaton has 32226 states and 171898 transitions. Word has length 25 [2020-10-15 18:44:52,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:44:52,398 INFO L481 AbstractCegarLoop]: Abstraction has 32226 states and 171898 transitions. [2020-10-15 18:44:52,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:44:52,398 INFO L276 IsEmpty]: Start isEmpty. Operand 32226 states and 171898 transitions. [2020-10-15 18:44:52,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:44:52,401 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:44:52,401 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:44:52,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2020-10-15 18:44:52,401 INFO L429 AbstractCegarLoop]: === Iteration 36 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:44:52,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:44:52,401 INFO L82 PathProgramCache]: Analyzing trace with hash -958277096, now seen corresponding path program 4 times [2020-10-15 18:44:52,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:44:52,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103863958] [2020-10-15 18:44:52,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:44:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:44:52,446 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:44:52,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103863958] [2020-10-15 18:44:52,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:44:52,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:44:52,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142327736] [2020-10-15 18:44:52,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:44:52,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:44:52,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:44:52,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:44:52,447 INFO L87 Difference]: Start difference. First operand 32226 states and 171898 transitions. Second operand 9 states. [2020-10-15 18:44:53,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:44:53,612 INFO L93 Difference]: Finished difference Result 116502 states and 530595 transitions. [2020-10-15 18:44:53,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:44:53,612 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 18:44:53,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:44:53,942 INFO L225 Difference]: With dead ends: 116502 [2020-10-15 18:44:53,942 INFO L226 Difference]: Without dead ends: 116462 [2020-10-15 18:44:53,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:44:55,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116462 states. [2020-10-15 18:44:56,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116462 to 32188. [2020-10-15 18:44:56,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32188 states. [2020-10-15 18:44:56,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32188 states to 32188 states and 171558 transitions. [2020-10-15 18:44:56,939 INFO L78 Accepts]: Start accepts. Automaton has 32188 states and 171558 transitions. Word has length 25 [2020-10-15 18:44:56,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:44:56,939 INFO L481 AbstractCegarLoop]: Abstraction has 32188 states and 171558 transitions. [2020-10-15 18:44:56,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:44:56,939 INFO L276 IsEmpty]: Start isEmpty. Operand 32188 states and 171558 transitions. [2020-10-15 18:44:56,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:44:56,942 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:44:56,942 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:44:56,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2020-10-15 18:44:56,942 INFO L429 AbstractCegarLoop]: === Iteration 37 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:44:56,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:44:56,942 INFO L82 PathProgramCache]: Analyzing trace with hash -958275701, now seen corresponding path program 4 times [2020-10-15 18:44:56,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:44:56,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725366911] [2020-10-15 18:44:56,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:44:56,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:44:56,989 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:44:56,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725366911] [2020-10-15 18:44:56,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:44:56,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:44:56,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226613231] [2020-10-15 18:44:56,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:44:56,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:44:56,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:44:56,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:44:56,990 INFO L87 Difference]: Start difference. First operand 32188 states and 171558 transitions. Second operand 9 states. [2020-10-15 18:44:58,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:44:58,196 INFO L93 Difference]: Finished difference Result 115555 states and 526107 transitions. [2020-10-15 18:44:58,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:44:58,196 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 18:44:58,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:44:58,525 INFO L225 Difference]: With dead ends: 115555 [2020-10-15 18:44:58,525 INFO L226 Difference]: Without dead ends: 115515 [2020-10-15 18:44:58,526 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:44:59,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115515 states. [2020-10-15 18:45:00,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115515 to 31998. [2020-10-15 18:45:00,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31998 states. [2020-10-15 18:45:00,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31998 states to 31998 states and 170450 transitions. [2020-10-15 18:45:00,940 INFO L78 Accepts]: Start accepts. Automaton has 31998 states and 170450 transitions. Word has length 25 [2020-10-15 18:45:00,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:45:00,940 INFO L481 AbstractCegarLoop]: Abstraction has 31998 states and 170450 transitions. [2020-10-15 18:45:00,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:45:00,941 INFO L276 IsEmpty]: Start isEmpty. Operand 31998 states and 170450 transitions. [2020-10-15 18:45:00,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:45:00,943 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:45:00,943 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:45:00,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2020-10-15 18:45:00,943 INFO L429 AbstractCegarLoop]: === Iteration 38 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:45:00,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:45:00,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1698987747, now seen corresponding path program 1 times [2020-10-15 18:45:00,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:45:00,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176215849] [2020-10-15 18:45:00,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:45:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:45:00,961 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 18:45:00,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176215849] [2020-10-15 18:45:00,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:45:00,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:45:00,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003963062] [2020-10-15 18:45:00,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:45:00,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:45:00,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:45:00,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:45:00,963 INFO L87 Difference]: Start difference. First operand 31998 states and 170450 transitions. Second operand 5 states. [2020-10-15 18:45:01,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:45:01,332 INFO L93 Difference]: Finished difference Result 56734 states and 290623 transitions. [2020-10-15 18:45:01,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:45:01,333 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-15 18:45:01,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:45:01,501 INFO L225 Difference]: With dead ends: 56734 [2020-10-15 18:45:01,501 INFO L226 Difference]: Without dead ends: 56671 [2020-10-15 18:45:01,501 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:45:02,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56671 states. [2020-10-15 18:45:03,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56671 to 40400. [2020-10-15 18:45:03,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40400 states. [2020-10-15 18:45:03,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40400 states to 40400 states and 215336 transitions. [2020-10-15 18:45:03,157 INFO L78 Accepts]: Start accepts. Automaton has 40400 states and 215336 transitions. Word has length 25 [2020-10-15 18:45:03,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:45:03,157 INFO L481 AbstractCegarLoop]: Abstraction has 40400 states and 215336 transitions. [2020-10-15 18:45:03,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:45:03,157 INFO L276 IsEmpty]: Start isEmpty. Operand 40400 states and 215336 transitions. [2020-10-15 18:45:03,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:45:03,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:45:03,160 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:45:03,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2020-10-15 18:45:03,160 INFO L429 AbstractCegarLoop]: === Iteration 39 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:45:03,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:45:03,160 INFO L82 PathProgramCache]: Analyzing trace with hash -670679464, now seen corresponding path program 5 times [2020-10-15 18:45:03,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:45:03,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406212200] [2020-10-15 18:45:03,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:45:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:45:03,212 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:45:03,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406212200] [2020-10-15 18:45:03,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:45:03,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:45:03,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877142181] [2020-10-15 18:45:03,214 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:45:03,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:45:03,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:45:03,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:45:03,215 INFO L87 Difference]: Start difference. First operand 40400 states and 215336 transitions. Second operand 9 states. [2020-10-15 18:45:05,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:45:05,013 INFO L93 Difference]: Finished difference Result 137449 states and 636138 transitions. [2020-10-15 18:45:05,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:45:05,013 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 18:45:05,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:45:05,463 INFO L225 Difference]: With dead ends: 137449 [2020-10-15 18:45:05,464 INFO L226 Difference]: Without dead ends: 137407 [2020-10-15 18:45:05,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:45:06,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137407 states. [2020-10-15 18:45:08,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137407 to 39840. [2020-10-15 18:45:08,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39840 states. [2020-10-15 18:45:08,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39840 states to 39840 states and 212294 transitions. [2020-10-15 18:45:08,399 INFO L78 Accepts]: Start accepts. Automaton has 39840 states and 212294 transitions. Word has length 25 [2020-10-15 18:45:08,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:45:08,400 INFO L481 AbstractCegarLoop]: Abstraction has 39840 states and 212294 transitions. [2020-10-15 18:45:08,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:45:08,400 INFO L276 IsEmpty]: Start isEmpty. Operand 39840 states and 212294 transitions. [2020-10-15 18:45:08,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:45:08,402 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:45:08,402 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:45:08,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2020-10-15 18:45:08,402 INFO L429 AbstractCegarLoop]: === Iteration 40 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:45:08,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:45:08,403 INFO L82 PathProgramCache]: Analyzing trace with hash -669338869, now seen corresponding path program 5 times [2020-10-15 18:45:08,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:45:08,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301758247] [2020-10-15 18:45:08,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:45:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:45:08,453 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:45:08,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301758247] [2020-10-15 18:45:08,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:45:08,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:45:08,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088669386] [2020-10-15 18:45:08,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:45:08,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:45:08,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:45:08,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:45:08,456 INFO L87 Difference]: Start difference. First operand 39840 states and 212294 transitions. Second operand 9 states. [2020-10-15 18:45:09,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:45:09,690 INFO L93 Difference]: Finished difference Result 136260 states and 629977 transitions. [2020-10-15 18:45:09,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:45:09,691 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 18:45:09,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:45:10,084 INFO L225 Difference]: With dead ends: 136260 [2020-10-15 18:45:10,084 INFO L226 Difference]: Without dead ends: 136218 [2020-10-15 18:45:10,085 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:45:11,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136218 states. [2020-10-15 18:45:12,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136218 to 39457. [2020-10-15 18:45:12,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39457 states. [2020-10-15 18:45:14,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39457 states to 39457 states and 210241 transitions. [2020-10-15 18:45:14,144 INFO L78 Accepts]: Start accepts. Automaton has 39457 states and 210241 transitions. Word has length 25 [2020-10-15 18:45:14,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:45:14,145 INFO L481 AbstractCegarLoop]: Abstraction has 39457 states and 210241 transitions. [2020-10-15 18:45:14,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:45:14,145 INFO L276 IsEmpty]: Start isEmpty. Operand 39457 states and 210241 transitions. [2020-10-15 18:45:14,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:45:14,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:45:14,147 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:45:14,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2020-10-15 18:45:14,147 INFO L429 AbstractCegarLoop]: === Iteration 41 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:45:14,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:45:14,148 INFO L82 PathProgramCache]: Analyzing trace with hash -684190504, now seen corresponding path program 6 times [2020-10-15 18:45:14,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:45:14,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008578893] [2020-10-15 18:45:14,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:45:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:45:14,199 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:45:14,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008578893] [2020-10-15 18:45:14,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:45:14,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:45:14,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97043143] [2020-10-15 18:45:14,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:45:14,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:45:14,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:45:14,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:45:14,201 INFO L87 Difference]: Start difference. First operand 39457 states and 210241 transitions. Second operand 9 states. [2020-10-15 18:45:15,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:45:15,449 INFO L93 Difference]: Finished difference Result 135358 states and 625465 transitions. [2020-10-15 18:45:15,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:45:15,449 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 18:45:15,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:45:15,836 INFO L225 Difference]: With dead ends: 135358 [2020-10-15 18:45:15,836 INFO L226 Difference]: Without dead ends: 135306 [2020-10-15 18:45:15,836 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:45:17,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135306 states. [2020-10-15 18:45:18,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135306 to 38674. [2020-10-15 18:45:18,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38674 states. [2020-10-15 18:45:18,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38674 states to 38674 states and 206150 transitions. [2020-10-15 18:45:18,778 INFO L78 Accepts]: Start accepts. Automaton has 38674 states and 206150 transitions. Word has length 25 [2020-10-15 18:45:18,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:45:18,778 INFO L481 AbstractCegarLoop]: Abstraction has 38674 states and 206150 transitions. [2020-10-15 18:45:18,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:45:18,778 INFO L276 IsEmpty]: Start isEmpty. Operand 38674 states and 206150 transitions. [2020-10-15 18:45:18,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 18:45:18,780 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:45:18,781 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:45:18,781 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2020-10-15 18:45:18,781 INFO L429 AbstractCegarLoop]: === Iteration 42 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:45:18,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:45:18,781 INFO L82 PathProgramCache]: Analyzing trace with hash -684189109, now seen corresponding path program 6 times [2020-10-15 18:45:18,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:45:18,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333816755] [2020-10-15 18:45:18,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:45:18,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:45:18,827 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:45:18,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333816755] [2020-10-15 18:45:18,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:45:18,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:45:18,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488199851] [2020-10-15 18:45:18,828 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:45:18,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:45:18,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:45:18,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:45:18,829 INFO L87 Difference]: Start difference. First operand 38674 states and 206150 transitions. Second operand 9 states. [2020-10-15 18:45:20,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:45:20,051 INFO L93 Difference]: Finished difference Result 134089 states and 619317 transitions. [2020-10-15 18:45:20,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:45:20,051 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 18:45:20,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:45:20,438 INFO L225 Difference]: With dead ends: 134089 [2020-10-15 18:45:20,438 INFO L226 Difference]: Without dead ends: 134037 [2020-10-15 18:45:20,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:45:21,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134037 states. [2020-10-15 18:45:23,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134037 to 37675. [2020-10-15 18:45:23,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37675 states. [2020-10-15 18:45:23,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37675 states to 37675 states and 201015 transitions. [2020-10-15 18:45:23,970 INFO L78 Accepts]: Start accepts. Automaton has 37675 states and 201015 transitions. Word has length 25 [2020-10-15 18:45:23,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:45:23,970 INFO L481 AbstractCegarLoop]: Abstraction has 37675 states and 201015 transitions. [2020-10-15 18:45:23,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:45:23,970 INFO L276 IsEmpty]: Start isEmpty. Operand 37675 states and 201015 transitions. [2020-10-15 18:45:23,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:45:23,974 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:45:23,974 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:45:23,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2020-10-15 18:45:23,974 INFO L429 AbstractCegarLoop]: === Iteration 43 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:45:23,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:45:23,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1444696671, now seen corresponding path program 1 times [2020-10-15 18:45:23,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:45:23,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919385441] [2020-10-15 18:45:23,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:45:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:45:24,008 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 18:45:24,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919385441] [2020-10-15 18:45:24,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191815858] [2020-10-15 18:45:24,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:45:24,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:45:24,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 18:45:24,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:45:24,109 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 18:45:24,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:45:24,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 18:45:24,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191298733] [2020-10-15 18:45:24,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:45:24,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:45:24,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:45:24,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:45:24,111 INFO L87 Difference]: Start difference. First operand 37675 states and 201015 transitions. Second operand 9 states. [2020-10-15 18:45:24,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:45:24,771 INFO L93 Difference]: Finished difference Result 85349 states and 414605 transitions. [2020-10-15 18:45:24,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:45:24,771 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-10-15 18:45:24,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:45:25,019 INFO L225 Difference]: With dead ends: 85349 [2020-10-15 18:45:25,020 INFO L226 Difference]: Without dead ends: 85301 [2020-10-15 18:45:25,020 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 18:45:25,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85301 states. [2020-10-15 18:45:26,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85301 to 38836. [2020-10-15 18:45:26,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38836 states. [2020-10-15 18:45:27,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38836 states to 38836 states and 206710 transitions. [2020-10-15 18:45:27,104 INFO L78 Accepts]: Start accepts. Automaton has 38836 states and 206710 transitions. Word has length 27 [2020-10-15 18:45:27,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:45:27,105 INFO L481 AbstractCegarLoop]: Abstraction has 38836 states and 206710 transitions. [2020-10-15 18:45:27,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:45:27,105 INFO L276 IsEmpty]: Start isEmpty. Operand 38836 states and 206710 transitions. [2020-10-15 18:45:27,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:45:27,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:45:27,109 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:45:27,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable117 [2020-10-15 18:45:27,324 INFO L429 AbstractCegarLoop]: === Iteration 44 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:45:27,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:45:27,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1707919879, now seen corresponding path program 1 times [2020-10-15 18:45:27,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:45:27,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776289845] [2020-10-15 18:45:27,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:45:27,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:45:27,394 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:45:27,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776289845] [2020-10-15 18:45:27,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699182889] [2020-10-15 18:45:27,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:45:27,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:45:27,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 18:45:27,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:45:27,507 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:45:27,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:45:27,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 18:45:27,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761148379] [2020-10-15 18:45:27,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 18:45:27,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:45:27,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 18:45:27,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 18:45:27,509 INFO L87 Difference]: Start difference. First operand 38836 states and 206710 transitions. Second operand 13 states. [2020-10-15 18:45:29,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:45:29,981 INFO L93 Difference]: Finished difference Result 184520 states and 806691 transitions. [2020-10-15 18:45:29,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 18:45:29,982 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 18:45:29,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:45:30,491 INFO L225 Difference]: With dead ends: 184520 [2020-10-15 18:45:30,491 INFO L226 Difference]: Without dead ends: 184502 [2020-10-15 18:45:30,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1606 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-10-15 18:45:32,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184502 states. [2020-10-15 18:45:34,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184502 to 38937. [2020-10-15 18:45:34,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38937 states. [2020-10-15 18:45:35,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38937 states to 38937 states and 207195 transitions. [2020-10-15 18:45:35,022 INFO L78 Accepts]: Start accepts. Automaton has 38937 states and 207195 transitions. Word has length 27 [2020-10-15 18:45:35,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:45:35,022 INFO L481 AbstractCegarLoop]: Abstraction has 38937 states and 207195 transitions. [2020-10-15 18:45:35,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 18:45:35,022 INFO L276 IsEmpty]: Start isEmpty. Operand 38937 states and 207195 transitions. [2020-10-15 18:45:35,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:45:35,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:45:35,026 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:45:35,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable118 [2020-10-15 18:45:35,227 INFO L429 AbstractCegarLoop]: === Iteration 45 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:45:35,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:45:35,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1671880519, now seen corresponding path program 2 times [2020-10-15 18:45:35,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:45:35,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414196660] [2020-10-15 18:45:35,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:45:35,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:45:35,293 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:45:35,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414196660] [2020-10-15 18:45:35,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050905867] [2020-10-15 18:45:35,294 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:45:35,380 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 18:45:35,380 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:45:35,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 18:45:35,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:45:35,405 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:45:35,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:45:35,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 18:45:35,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194203511] [2020-10-15 18:45:35,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 18:45:35,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:45:35,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 18:45:35,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 18:45:35,406 INFO L87 Difference]: Start difference. First operand 38937 states and 207195 transitions. Second operand 13 states. [2020-10-15 18:45:38,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:45:38,006 INFO L93 Difference]: Finished difference Result 184111 states and 804949 transitions. [2020-10-15 18:45:38,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 18:45:38,006 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 18:45:38,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:45:38,504 INFO L225 Difference]: With dead ends: 184111 [2020-10-15 18:45:38,504 INFO L226 Difference]: Without dead ends: 184087 [2020-10-15 18:45:38,504 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1595 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-10-15 18:45:40,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184087 states. [2020-10-15 18:45:43,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184087 to 38705. [2020-10-15 18:45:43,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38705 states. [2020-10-15 18:45:43,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38705 states to 38705 states and 205959 transitions. [2020-10-15 18:45:43,163 INFO L78 Accepts]: Start accepts. Automaton has 38705 states and 205959 transitions. Word has length 27 [2020-10-15 18:45:43,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:45:43,163 INFO L481 AbstractCegarLoop]: Abstraction has 38705 states and 205959 transitions. [2020-10-15 18:45:43,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 18:45:43,163 INFO L276 IsEmpty]: Start isEmpty. Operand 38705 states and 205959 transitions. [2020-10-15 18:45:43,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:45:43,166 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:45:43,167 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:45:43,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:45:43,375 INFO L429 AbstractCegarLoop]: === Iteration 46 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:45:43,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:45:43,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1200868665, now seen corresponding path program 3 times [2020-10-15 18:45:43,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:45:43,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018844377] [2020-10-15 18:45:43,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:45:43,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:45:43,441 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:45:43,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018844377] [2020-10-15 18:45:43,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133660346] [2020-10-15 18:45:43,442 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:45:43,529 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-10-15 18:45:43,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:45:43,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 18:45:43,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:45:43,553 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:45:43,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:45:43,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 18:45:43,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698840334] [2020-10-15 18:45:43,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 18:45:43,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:45:43,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 18:45:43,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 18:45:43,554 INFO L87 Difference]: Start difference. First operand 38705 states and 205959 transitions. Second operand 13 states. [2020-10-15 18:45:46,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:45:46,026 INFO L93 Difference]: Finished difference Result 183485 states and 802028 transitions. [2020-10-15 18:45:46,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 18:45:46,026 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 18:45:46,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:45:46,521 INFO L225 Difference]: With dead ends: 183485 [2020-10-15 18:45:46,521 INFO L226 Difference]: Without dead ends: 183467 [2020-10-15 18:45:46,521 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1602 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-10-15 18:45:48,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183467 states. [2020-10-15 18:45:50,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183467 to 38802. [2020-10-15 18:45:50,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38802 states. [2020-10-15 18:45:50,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38802 states to 38802 states and 206432 transitions. [2020-10-15 18:45:50,286 INFO L78 Accepts]: Start accepts. Automaton has 38802 states and 206432 transitions. Word has length 27 [2020-10-15 18:45:50,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:45:50,286 INFO L481 AbstractCegarLoop]: Abstraction has 38802 states and 206432 transitions. [2020-10-15 18:45:50,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 18:45:50,286 INFO L276 IsEmpty]: Start isEmpty. Operand 38802 states and 206432 transitions. [2020-10-15 18:45:50,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:45:50,290 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:45:50,291 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:45:50,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120,49 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:45:50,491 INFO L429 AbstractCegarLoop]: === Iteration 47 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:45:50,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:45:50,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1222057785, now seen corresponding path program 4 times [2020-10-15 18:45:50,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:45:50,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413698735] [2020-10-15 18:45:50,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:45:50,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:45:50,561 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:45:50,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413698735] [2020-10-15 18:45:50,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11710837] [2020-10-15 18:45:50,562 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:45:50,651 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 18:45:50,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:45:50,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 18:45:50,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:45:50,676 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:45:50,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:45:50,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 18:45:50,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088953138] [2020-10-15 18:45:50,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 18:45:50,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:45:50,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 18:45:50,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 18:45:50,677 INFO L87 Difference]: Start difference. First operand 38802 states and 206432 transitions. Second operand 13 states. [2020-10-15 18:45:53,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:45:53,550 INFO L93 Difference]: Finished difference Result 183194 states and 800691 transitions. [2020-10-15 18:45:53,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 18:45:53,550 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 18:45:53,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:45:54,049 INFO L225 Difference]: With dead ends: 183194 [2020-10-15 18:45:54,050 INFO L226 Difference]: Without dead ends: 183170 [2020-10-15 18:45:54,050 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1607 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-10-15 18:45:55,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183170 states. [2020-10-15 18:45:57,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183170 to 38578. [2020-10-15 18:45:57,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38578 states. [2020-10-15 18:45:57,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38578 states to 38578 states and 205224 transitions. [2020-10-15 18:45:57,777 INFO L78 Accepts]: Start accepts. Automaton has 38578 states and 205224 transitions. Word has length 27 [2020-10-15 18:45:57,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:45:57,778 INFO L481 AbstractCegarLoop]: Abstraction has 38578 states and 205224 transitions. [2020-10-15 18:45:57,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 18:45:57,778 INFO L276 IsEmpty]: Start isEmpty. Operand 38578 states and 205224 transitions. [2020-10-15 18:45:57,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:45:57,781 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:45:57,781 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:45:57,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121,50 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:45:57,982 INFO L429 AbstractCegarLoop]: === Iteration 48 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:45:57,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:45:57,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1510994617, now seen corresponding path program 5 times [2020-10-15 18:45:57,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:45:57,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883999055] [2020-10-15 18:45:57,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:45:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:45:58,053 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:45:58,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883999055] [2020-10-15 18:45:58,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765863638] [2020-10-15 18:45:58,054 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:45:58,168 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-10-15 18:45:58,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:45:58,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 18:45:58,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:45:58,191 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:45:58,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:45:58,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 18:45:58,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594214764] [2020-10-15 18:45:58,191 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 18:45:58,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:45:58,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 18:45:58,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 18:45:58,192 INFO L87 Difference]: Start difference. First operand 38578 states and 205224 transitions. Second operand 13 states. [2020-10-15 18:46:00,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:46:00,854 INFO L93 Difference]: Finished difference Result 182584 states and 797818 transitions. [2020-10-15 18:46:00,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 18:46:00,855 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 18:46:00,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:46:02,279 INFO L225 Difference]: With dead ends: 182584 [2020-10-15 18:46:02,279 INFO L226 Difference]: Without dead ends: 182566 [2020-10-15 18:46:02,279 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1594 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-10-15 18:46:03,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182566 states. [2020-10-15 18:46:05,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182566 to 38683. [2020-10-15 18:46:05,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38683 states. [2020-10-15 18:46:05,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38683 states to 38683 states and 205717 transitions. [2020-10-15 18:46:05,800 INFO L78 Accepts]: Start accepts. Automaton has 38683 states and 205717 transitions. Word has length 27 [2020-10-15 18:46:05,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:46:05,801 INFO L481 AbstractCegarLoop]: Abstraction has 38683 states and 205717 transitions. [2020-10-15 18:46:05,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 18:46:05,801 INFO L276 IsEmpty]: Start isEmpty. Operand 38683 states and 205717 transitions. [2020-10-15 18:46:05,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:46:05,804 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:46:05,804 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:46:06,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable122 [2020-10-15 18:46:06,005 INFO L429 AbstractCegarLoop]: === Iteration 49 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:46:06,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:46:06,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1496144377, now seen corresponding path program 6 times [2020-10-15 18:46:06,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:46:06,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158086519] [2020-10-15 18:46:06,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:46:06,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:46:06,072 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:46:06,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158086519] [2020-10-15 18:46:06,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668320271] [2020-10-15 18:46:06,073 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:46:06,164 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2020-10-15 18:46:06,164 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:46:06,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 18:46:06,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:46:06,189 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 18:46:06,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:46:06,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 18:46:06,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869212359] [2020-10-15 18:46:06,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 18:46:06,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:46:06,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 18:46:06,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 18:46:06,191 INFO L87 Difference]: Start difference. First operand 38683 states and 205717 transitions. Second operand 13 states. [2020-10-15 18:46:08,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:46:08,629 INFO L93 Difference]: Finished difference Result 182167 states and 796056 transitions. [2020-10-15 18:46:08,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 18:46:08,630 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 18:46:08,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:46:09,123 INFO L225 Difference]: With dead ends: 182167 [2020-10-15 18:46:09,123 INFO L226 Difference]: Without dead ends: 182139 [2020-10-15 18:46:09,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1599 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-10-15 18:46:10,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182139 states. [2020-10-15 18:46:13,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182139 to 38439. [2020-10-15 18:46:13,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38439 states. [2020-10-15 18:46:13,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38439 states to 38439 states and 204452 transitions. [2020-10-15 18:46:13,625 INFO L78 Accepts]: Start accepts. Automaton has 38439 states and 204452 transitions. Word has length 27 [2020-10-15 18:46:13,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:46:13,625 INFO L481 AbstractCegarLoop]: Abstraction has 38439 states and 204452 transitions. [2020-10-15 18:46:13,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 18:46:13,625 INFO L276 IsEmpty]: Start isEmpty. Operand 38439 states and 204452 transitions. [2020-10-15 18:46:13,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:46:13,628 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:46:13,629 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:46:13,829 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable123 [2020-10-15 18:46:13,829 INFO L429 AbstractCegarLoop]: === Iteration 50 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:46:13,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:46:13,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1123724041, now seen corresponding path program 7 times [2020-10-15 18:46:13,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:46:13,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35149243] [2020-10-15 18:46:13,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:46:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:46:13,900 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:46:13,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35149243] [2020-10-15 18:46:13,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662071073] [2020-10-15 18:46:13,900 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:46:13,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:46:13,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 18:46:13,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:46:14,019 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:46:14,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:46:14,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 18:46:14,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408766978] [2020-10-15 18:46:14,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 18:46:14,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:46:14,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 18:46:14,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 18:46:14,021 INFO L87 Difference]: Start difference. First operand 38439 states and 204452 transitions. Second operand 13 states. [2020-10-15 18:46:16,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:46:16,533 INFO L93 Difference]: Finished difference Result 183258 states and 800935 transitions. [2020-10-15 18:46:16,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 18:46:16,534 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 18:46:16,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:46:17,026 INFO L225 Difference]: With dead ends: 183258 [2020-10-15 18:46:17,026 INFO L226 Difference]: Without dead ends: 183240 [2020-10-15 18:46:17,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1606 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-10-15 18:46:18,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183240 states. [2020-10-15 18:46:21,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183240 to 38278. [2020-10-15 18:46:21,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38278 states. [2020-10-15 18:46:21,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38278 states to 38278 states and 203659 transitions. [2020-10-15 18:46:21,611 INFO L78 Accepts]: Start accepts. Automaton has 38278 states and 203659 transitions. Word has length 27 [2020-10-15 18:46:21,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:46:21,611 INFO L481 AbstractCegarLoop]: Abstraction has 38278 states and 203659 transitions. [2020-10-15 18:46:21,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 18:46:21,612 INFO L276 IsEmpty]: Start isEmpty. Operand 38278 states and 203659 transitions. [2020-10-15 18:46:21,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:46:21,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:46:21,615 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:46:21,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable124 [2020-10-15 18:46:21,816 INFO L429 AbstractCegarLoop]: === Iteration 51 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:46:21,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:46:21,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1087684681, now seen corresponding path program 8 times [2020-10-15 18:46:21,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:46:21,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716379600] [2020-10-15 18:46:21,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:46:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:46:21,889 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:46:21,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716379600] [2020-10-15 18:46:21,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045002031] [2020-10-15 18:46:21,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:46:21,978 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 18:46:21,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:46:21,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 18:46:21,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:46:22,004 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:46:22,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:46:22,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 18:46:22,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257437183] [2020-10-15 18:46:22,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 18:46:22,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:46:22,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 18:46:22,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 18:46:22,006 INFO L87 Difference]: Start difference. First operand 38278 states and 203659 transitions. Second operand 13 states. [2020-10-15 18:46:24,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:46:24,528 INFO L93 Difference]: Finished difference Result 182849 states and 799193 transitions. [2020-10-15 18:46:24,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 18:46:24,528 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 18:46:24,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:46:25,020 INFO L225 Difference]: With dead ends: 182849 [2020-10-15 18:46:25,020 INFO L226 Difference]: Without dead ends: 182825 [2020-10-15 18:46:25,021 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1594 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-10-15 18:46:26,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182825 states. [2020-10-15 18:46:28,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182825 to 37884. [2020-10-15 18:46:28,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37884 states. [2020-10-15 18:46:28,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37884 states to 37884 states and 201622 transitions. [2020-10-15 18:46:28,751 INFO L78 Accepts]: Start accepts. Automaton has 37884 states and 201622 transitions. Word has length 27 [2020-10-15 18:46:28,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:46:28,751 INFO L481 AbstractCegarLoop]: Abstraction has 37884 states and 201622 transitions. [2020-10-15 18:46:28,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 18:46:28,751 INFO L276 IsEmpty]: Start isEmpty. Operand 37884 states and 201622 transitions. [2020-10-15 18:46:28,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:46:28,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:46:28,755 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:46:28,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable125 [2020-10-15 18:46:28,956 INFO L429 AbstractCegarLoop]: === Iteration 52 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:46:28,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:46:28,957 INFO L82 PathProgramCache]: Analyzing trace with hash 2028959203, now seen corresponding path program 9 times [2020-10-15 18:46:28,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:46:28,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898178069] [2020-10-15 18:46:28,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:46:28,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:46:29,028 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:46:29,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898178069] [2020-10-15 18:46:29,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328005723] [2020-10-15 18:46:29,029 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:46:29,120 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-15 18:46:29,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:46:29,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 18:46:29,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:46:29,146 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:46:29,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:46:29,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 18:46:29,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121568842] [2020-10-15 18:46:29,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 18:46:29,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:46:29,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 18:46:29,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 18:46:29,147 INFO L87 Difference]: Start difference. First operand 37884 states and 201622 transitions. Second operand 13 states. [2020-10-15 18:46:32,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:46:32,020 INFO L93 Difference]: Finished difference Result 183773 states and 803153 transitions. [2020-10-15 18:46:32,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 18:46:32,021 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 18:46:32,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:46:32,517 INFO L225 Difference]: With dead ends: 183773 [2020-10-15 18:46:32,517 INFO L226 Difference]: Without dead ends: 183755 [2020-10-15 18:46:32,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1612 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-10-15 18:46:34,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183755 states. [2020-10-15 18:46:36,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183755 to 37981. [2020-10-15 18:46:36,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37981 states. [2020-10-15 18:46:36,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37981 states to 37981 states and 202095 transitions. [2020-10-15 18:46:36,259 INFO L78 Accepts]: Start accepts. Automaton has 37981 states and 202095 transitions. Word has length 27 [2020-10-15 18:46:36,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:46:36,259 INFO L481 AbstractCegarLoop]: Abstraction has 37981 states and 202095 transitions. [2020-10-15 18:46:36,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 18:46:36,259 INFO L276 IsEmpty]: Start isEmpty. Operand 37981 states and 202095 transitions. [2020-10-15 18:46:36,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:46:36,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:46:36,264 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:46:36,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable126 [2020-10-15 18:46:36,478 INFO L429 AbstractCegarLoop]: === Iteration 53 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:46:36,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:46:36,478 INFO L82 PathProgramCache]: Analyzing trace with hash 2051487523, now seen corresponding path program 10 times [2020-10-15 18:46:36,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:46:36,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903690807] [2020-10-15 18:46:36,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:46:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:46:36,547 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:46:36,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903690807] [2020-10-15 18:46:36,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829221355] [2020-10-15 18:46:36,548 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:46:36,638 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 18:46:36,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:46:36,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 18:46:36,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:46:36,662 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:46:36,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:46:36,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 18:46:36,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143398992] [2020-10-15 18:46:36,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 18:46:36,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:46:36,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 18:46:36,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 18:46:36,663 INFO L87 Difference]: Start difference. First operand 37981 states and 202095 transitions. Second operand 13 states. [2020-10-15 18:46:39,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:46:39,278 INFO L93 Difference]: Finished difference Result 184574 states and 806606 transitions. [2020-10-15 18:46:39,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 18:46:39,278 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 18:46:39,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:46:40,612 INFO L225 Difference]: With dead ends: 184574 [2020-10-15 18:46:40,612 INFO L226 Difference]: Without dead ends: 184550 [2020-10-15 18:46:40,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1612 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-10-15 18:46:42,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184550 states. [2020-10-15 18:46:43,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184550 to 37723. [2020-10-15 18:46:43,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37723 states. [2020-10-15 18:46:44,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37723 states to 37723 states and 200669 transitions. [2020-10-15 18:46:44,087 INFO L78 Accepts]: Start accepts. Automaton has 37723 states and 200669 transitions. Word has length 27 [2020-10-15 18:46:44,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:46:44,087 INFO L481 AbstractCegarLoop]: Abstraction has 37723 states and 200669 transitions. [2020-10-15 18:46:44,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 18:46:44,088 INFO L276 IsEmpty]: Start isEmpty. Operand 37723 states and 200669 transitions. [2020-10-15 18:46:44,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:46:44,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:46:44,092 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:46:44,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:46:44,299 INFO L429 AbstractCegarLoop]: === Iteration 54 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:46:44,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:46:44,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1310776872, now seen corresponding path program 1 times [2020-10-15 18:46:44,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:46:44,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786640930] [2020-10-15 18:46:44,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:46:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:46:44,335 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 18:46:44,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786640930] [2020-10-15 18:46:44,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92958825] [2020-10-15 18:46:44,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:46:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:46:44,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 18:46:44,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:46:44,438 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 18:46:44,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:46:44,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 18:46:44,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459057364] [2020-10-15 18:46:44,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:46:44,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:46:44,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:46:44,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:46:44,440 INFO L87 Difference]: Start difference. First operand 37723 states and 200669 transitions. Second operand 9 states. [2020-10-15 18:46:45,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:46:45,128 INFO L93 Difference]: Finished difference Result 87418 states and 424333 transitions. [2020-10-15 18:46:45,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:46:45,128 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-10-15 18:46:45,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:46:45,389 INFO L225 Difference]: With dead ends: 87418 [2020-10-15 18:46:45,389 INFO L226 Difference]: Without dead ends: 87366 [2020-10-15 18:46:45,389 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 18:46:46,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87366 states. [2020-10-15 18:46:47,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87366 to 39181. [2020-10-15 18:46:47,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39181 states. [2020-10-15 18:46:47,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39181 states to 39181 states and 208301 transitions. [2020-10-15 18:46:47,546 INFO L78 Accepts]: Start accepts. Automaton has 39181 states and 208301 transitions. Word has length 27 [2020-10-15 18:46:47,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:46:47,546 INFO L481 AbstractCegarLoop]: Abstraction has 39181 states and 208301 transitions. [2020-10-15 18:46:47,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:46:47,546 INFO L276 IsEmpty]: Start isEmpty. Operand 39181 states and 208301 transitions. [2020-10-15 18:46:47,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:46:47,550 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:46:47,550 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:46:47,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable128 [2020-10-15 18:46:47,751 INFO L429 AbstractCegarLoop]: === Iteration 55 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:46:47,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:46:47,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1955882141, now seen corresponding path program 11 times [2020-10-15 18:46:47,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:46:47,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347565137] [2020-10-15 18:46:47,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:46:47,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:46:47,820 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:46:47,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347565137] [2020-10-15 18:46:47,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709105118] [2020-10-15 18:46:47,821 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:46:47,909 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-10-15 18:46:47,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:46:47,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 18:46:47,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:46:47,933 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:46:47,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:46:47,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 18:46:47,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121419890] [2020-10-15 18:46:47,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 18:46:47,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:46:47,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 18:46:47,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 18:46:47,935 INFO L87 Difference]: Start difference. First operand 39181 states and 208301 transitions. Second operand 13 states. [2020-10-15 18:46:50,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:46:50,676 INFO L93 Difference]: Finished difference Result 181204 states and 790360 transitions. [2020-10-15 18:46:50,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 18:46:50,676 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 18:46:50,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:46:51,169 INFO L225 Difference]: With dead ends: 181204 [2020-10-15 18:46:51,169 INFO L226 Difference]: Without dead ends: 181186 [2020-10-15 18:46:51,170 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1592 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-10-15 18:46:52,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181186 states. [2020-10-15 18:46:54,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181186 to 39282. [2020-10-15 18:46:54,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39282 states. [2020-10-15 18:46:54,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39282 states to 39282 states and 208786 transitions. [2020-10-15 18:46:54,832 INFO L78 Accepts]: Start accepts. Automaton has 39282 states and 208786 transitions. Word has length 27 [2020-10-15 18:46:54,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:46:54,832 INFO L481 AbstractCegarLoop]: Abstraction has 39282 states and 208786 transitions. [2020-10-15 18:46:54,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 18:46:54,832 INFO L276 IsEmpty]: Start isEmpty. Operand 39282 states and 208786 transitions. [2020-10-15 18:46:54,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:46:54,836 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:46:54,836 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:46:55,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:46:55,037 INFO L429 AbstractCegarLoop]: === Iteration 56 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:46:55,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:46:55,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1969393181, now seen corresponding path program 12 times [2020-10-15 18:46:55,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:46:55,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663219325] [2020-10-15 18:46:55,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:46:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:46:55,109 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:46:55,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663219325] [2020-10-15 18:46:55,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430405039] [2020-10-15 18:46:55,110 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:46:55,199 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2020-10-15 18:46:55,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:46:55,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 18:46:55,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:46:55,225 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:46:55,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:46:55,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 18:46:55,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574354690] [2020-10-15 18:46:55,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 18:46:55,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:46:55,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 18:46:55,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 18:46:55,226 INFO L87 Difference]: Start difference. First operand 39282 states and 208786 transitions. Second operand 13 states. [2020-10-15 18:46:58,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:46:58,413 INFO L93 Difference]: Finished difference Result 181788 states and 792986 transitions. [2020-10-15 18:46:58,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 18:46:58,414 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 18:46:58,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:46:58,923 INFO L225 Difference]: With dead ends: 181788 [2020-10-15 18:46:58,923 INFO L226 Difference]: Without dead ends: 181760 [2020-10-15 18:46:58,924 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1606 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-10-15 18:47:00,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181760 states. [2020-10-15 18:47:02,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181760 to 39046. [2020-10-15 18:47:02,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39046 states. [2020-10-15 18:47:02,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39046 states to 39046 states and 207541 transitions. [2020-10-15 18:47:02,515 INFO L78 Accepts]: Start accepts. Automaton has 39046 states and 207541 transitions. Word has length 27 [2020-10-15 18:47:02,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:47:02,515 INFO L481 AbstractCegarLoop]: Abstraction has 39046 states and 207541 transitions. [2020-10-15 18:47:02,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 18:47:02,515 INFO L276 IsEmpty]: Start isEmpty. Operand 39046 states and 207541 transitions. [2020-10-15 18:47:02,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:47:02,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:47:02,521 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:47:02,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable130 [2020-10-15 18:47:02,736 INFO L429 AbstractCegarLoop]: === Iteration 57 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:47:02,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:47:02,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1977356605, now seen corresponding path program 13 times [2020-10-15 18:47:02,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:47:02,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297003634] [2020-10-15 18:47:02,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:47:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:47:02,801 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:47:02,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297003634] [2020-10-15 18:47:02,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:47:02,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 18:47:02,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492657386] [2020-10-15 18:47:02,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:47:02,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:47:02,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:47:02,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:47:02,803 INFO L87 Difference]: Start difference. First operand 39046 states and 207541 transitions. Second operand 11 states. [2020-10-15 18:47:05,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:47:05,300 INFO L93 Difference]: Finished difference Result 182119 states and 794828 transitions. [2020-10-15 18:47:05,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 18:47:05,301 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 18:47:05,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:47:05,821 INFO L225 Difference]: With dead ends: 182119 [2020-10-15 18:47:05,821 INFO L226 Difference]: Without dead ends: 182101 [2020-10-15 18:47:05,822 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1555 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-10-15 18:47:08,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182101 states. [2020-10-15 18:47:09,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182101 to 38885. [2020-10-15 18:47:09,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38885 states. [2020-10-15 18:47:10,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38885 states to 38885 states and 206748 transitions. [2020-10-15 18:47:10,102 INFO L78 Accepts]: Start accepts. Automaton has 38885 states and 206748 transitions. Word has length 27 [2020-10-15 18:47:10,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:47:10,103 INFO L481 AbstractCegarLoop]: Abstraction has 38885 states and 206748 transitions. [2020-10-15 18:47:10,103 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:47:10,103 INFO L276 IsEmpty]: Start isEmpty. Operand 38885 states and 206748 transitions. [2020-10-15 18:47:10,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:47:10,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:47:10,107 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:47:10,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2020-10-15 18:47:10,107 INFO L429 AbstractCegarLoop]: === Iteration 58 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:47:10,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:47:10,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1956167485, now seen corresponding path program 14 times [2020-10-15 18:47:10,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:47:10,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228185151] [2020-10-15 18:47:10,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:47:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:47:10,178 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:47:10,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228185151] [2020-10-15 18:47:10,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:47:10,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 18:47:10,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475090199] [2020-10-15 18:47:10,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:47:10,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:47:10,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:47:10,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:47:10,180 INFO L87 Difference]: Start difference. First operand 38885 states and 206748 transitions. Second operand 11 states. [2020-10-15 18:47:12,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:47:12,642 INFO L93 Difference]: Finished difference Result 182770 states and 797712 transitions. [2020-10-15 18:47:12,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 18:47:12,642 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 18:47:12,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:47:13,141 INFO L225 Difference]: With dead ends: 182770 [2020-10-15 18:47:13,142 INFO L226 Difference]: Without dead ends: 182746 [2020-10-15 18:47:13,142 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1559 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-10-15 18:47:14,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182746 states. [2020-10-15 18:47:17,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182746 to 38499. [2020-10-15 18:47:17,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38499 states. [2020-10-15 18:47:17,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38499 states to 38499 states and 204735 transitions. [2020-10-15 18:47:17,634 INFO L78 Accepts]: Start accepts. Automaton has 38499 states and 204735 transitions. Word has length 27 [2020-10-15 18:47:17,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:47:17,634 INFO L481 AbstractCegarLoop]: Abstraction has 38499 states and 204735 transitions. [2020-10-15 18:47:17,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:47:17,635 INFO L276 IsEmpty]: Start isEmpty. Operand 38499 states and 204735 transitions. [2020-10-15 18:47:17,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:47:17,640 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:47:17,640 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:47:17,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2020-10-15 18:47:17,640 INFO L429 AbstractCegarLoop]: === Iteration 59 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:47:17,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:47:17,640 INFO L82 PathProgramCache]: Analyzing trace with hash -690385405, now seen corresponding path program 15 times [2020-10-15 18:47:17,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:47:17,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671650688] [2020-10-15 18:47:17,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:47:17,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:47:17,711 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:47:17,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671650688] [2020-10-15 18:47:17,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:47:17,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 18:47:17,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000011679] [2020-10-15 18:47:17,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:47:17,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:47:17,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:47:17,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:47:17,713 INFO L87 Difference]: Start difference. First operand 38499 states and 204735 transitions. Second operand 11 states. [2020-10-15 18:47:20,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:47:20,167 INFO L93 Difference]: Finished difference Result 181153 states and 790470 transitions. [2020-10-15 18:47:20,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 18:47:20,168 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 18:47:20,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:47:20,659 INFO L225 Difference]: With dead ends: 181153 [2020-10-15 18:47:20,659 INFO L226 Difference]: Without dead ends: 181135 [2020-10-15 18:47:20,660 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1561 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-10-15 18:47:22,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181135 states. [2020-10-15 18:47:24,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181135 to 38208. [2020-10-15 18:47:24,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38208 states. [2020-10-15 18:47:24,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38208 states to 38208 states and 203398 transitions. [2020-10-15 18:47:24,250 INFO L78 Accepts]: Start accepts. Automaton has 38208 states and 203398 transitions. Word has length 27 [2020-10-15 18:47:24,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:47:24,250 INFO L481 AbstractCegarLoop]: Abstraction has 38208 states and 203398 transitions. [2020-10-15 18:47:24,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:47:24,251 INFO L276 IsEmpty]: Start isEmpty. Operand 38208 states and 203398 transitions. [2020-10-15 18:47:24,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:47:24,254 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:47:24,254 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:47:24,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2020-10-15 18:47:24,255 INFO L429 AbstractCegarLoop]: === Iteration 60 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:47:24,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:47:24,255 INFO L82 PathProgramCache]: Analyzing trace with hash -667857085, now seen corresponding path program 16 times [2020-10-15 18:47:24,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:47:24,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488765186] [2020-10-15 18:47:24,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:47:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:47:24,320 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:47:24,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488765186] [2020-10-15 18:47:24,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:47:24,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 18:47:24,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137295336] [2020-10-15 18:47:24,322 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:47:24,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:47:24,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:47:24,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:47:24,322 INFO L87 Difference]: Start difference. First operand 38208 states and 203398 transitions. Second operand 11 states. [2020-10-15 18:47:27,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:47:27,025 INFO L93 Difference]: Finished difference Result 181957 states and 793915 transitions. [2020-10-15 18:47:27,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 18:47:27,025 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 18:47:27,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:47:27,522 INFO L225 Difference]: With dead ends: 181957 [2020-10-15 18:47:27,522 INFO L226 Difference]: Without dead ends: 181933 [2020-10-15 18:47:27,522 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1565 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-10-15 18:47:29,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181933 states. [2020-10-15 18:47:30,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181933 to 37822. [2020-10-15 18:47:30,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37822 states. [2020-10-15 18:47:31,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37822 states to 37822 states and 201385 transitions. [2020-10-15 18:47:31,098 INFO L78 Accepts]: Start accepts. Automaton has 37822 states and 201385 transitions. Word has length 27 [2020-10-15 18:47:31,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:47:31,098 INFO L481 AbstractCegarLoop]: Abstraction has 37822 states and 201385 transitions. [2020-10-15 18:47:31,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:47:31,098 INFO L276 IsEmpty]: Start isEmpty. Operand 37822 states and 201385 transitions. [2020-10-15 18:47:31,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:47:31,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:47:31,102 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:47:31,102 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2020-10-15 18:47:31,102 INFO L429 AbstractCegarLoop]: === Iteration 61 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:47:31,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:47:31,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1485355099, now seen corresponding path program 1 times [2020-10-15 18:47:31,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:47:31,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589627348] [2020-10-15 18:47:31,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:47:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:47:31,132 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:47:31,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589627348] [2020-10-15 18:47:31,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001320396] [2020-10-15 18:47:31,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:47:31,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:47:31,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 18:47:31,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:47:31,239 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:47:31,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:47:31,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 18:47:31,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299515252] [2020-10-15 18:47:31,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:47:31,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:47:31,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:47:31,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:47:31,241 INFO L87 Difference]: Start difference. First operand 37822 states and 201385 transitions. Second operand 9 states. [2020-10-15 18:47:31,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:47:31,943 INFO L93 Difference]: Finished difference Result 90020 states and 438095 transitions. [2020-10-15 18:47:31,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:47:31,944 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-10-15 18:47:31,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:47:32,219 INFO L225 Difference]: With dead ends: 90020 [2020-10-15 18:47:32,219 INFO L226 Difference]: Without dead ends: 89960 [2020-10-15 18:47:32,219 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 18:47:33,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89960 states. [2020-10-15 18:47:34,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89960 to 39411. [2020-10-15 18:47:34,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39411 states. [2020-10-15 18:47:34,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39411 states to 39411 states and 210063 transitions. [2020-10-15 18:47:34,993 INFO L78 Accepts]: Start accepts. Automaton has 39411 states and 210063 transitions. Word has length 27 [2020-10-15 18:47:34,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:47:34,993 INFO L481 AbstractCegarLoop]: Abstraction has 39411 states and 210063 transitions. [2020-10-15 18:47:34,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:47:34,994 INFO L276 IsEmpty]: Start isEmpty. Operand 39411 states and 210063 transitions. [2020-10-15 18:47:34,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:47:34,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:47:34,998 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:47:35,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable135 [2020-10-15 18:47:35,199 INFO L429 AbstractCegarLoop]: === Iteration 62 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:47:35,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:47:35,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1781288445, now seen corresponding path program 17 times [2020-10-15 18:47:35,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:47:35,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430178513] [2020-10-15 18:47:35,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:47:35,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:47:35,269 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:47:35,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430178513] [2020-10-15 18:47:35,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:47:35,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 18:47:35,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572078858] [2020-10-15 18:47:35,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:47:35,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:47:35,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:47:35,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:47:35,271 INFO L87 Difference]: Start difference. First operand 39411 states and 210063 transitions. Second operand 11 states. [2020-10-15 18:47:37,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:47:37,737 INFO L93 Difference]: Finished difference Result 181463 states and 790579 transitions. [2020-10-15 18:47:37,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 18:47:37,737 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 18:47:37,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:47:38,241 INFO L225 Difference]: With dead ends: 181463 [2020-10-15 18:47:38,241 INFO L226 Difference]: Without dead ends: 181445 [2020-10-15 18:47:38,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1555 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-10-15 18:47:39,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181445 states. [2020-10-15 18:47:41,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181445 to 39508. [2020-10-15 18:47:41,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39508 states. [2020-10-15 18:47:42,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39508 states to 39508 states and 210536 transitions. [2020-10-15 18:47:42,006 INFO L78 Accepts]: Start accepts. Automaton has 39508 states and 210536 transitions. Word has length 27 [2020-10-15 18:47:42,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:47:42,006 INFO L481 AbstractCegarLoop]: Abstraction has 39508 states and 210536 transitions. [2020-10-15 18:47:42,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:47:42,007 INFO L276 IsEmpty]: Start isEmpty. Operand 39508 states and 210536 transitions. [2020-10-15 18:47:42,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:47:42,011 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:47:42,011 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:47:42,011 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2020-10-15 18:47:42,011 INFO L429 AbstractCegarLoop]: === Iteration 63 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:47:42,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:47:42,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1779949245, now seen corresponding path program 18 times [2020-10-15 18:47:42,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:47:42,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747590815] [2020-10-15 18:47:42,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:47:42,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:47:42,081 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:47:42,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747590815] [2020-10-15 18:47:42,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:47:42,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 18:47:42,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422204424] [2020-10-15 18:47:42,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:47:42,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:47:42,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:47:42,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:47:42,083 INFO L87 Difference]: Start difference. First operand 39508 states and 210536 transitions. Second operand 11 states. [2020-10-15 18:47:43,244 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-10-15 18:47:44,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:47:44,934 INFO L93 Difference]: Finished difference Result 181054 states and 788837 transitions. [2020-10-15 18:47:44,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 18:47:44,934 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 18:47:44,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:47:45,432 INFO L225 Difference]: With dead ends: 181054 [2020-10-15 18:47:45,432 INFO L226 Difference]: Without dead ends: 181026 [2020-10-15 18:47:45,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1565 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-10-15 18:47:47,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181026 states. [2020-10-15 18:47:49,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181026 to 39280. [2020-10-15 18:47:49,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39280 states. [2020-10-15 18:47:49,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39280 states to 39280 states and 209319 transitions. [2020-10-15 18:47:49,152 INFO L78 Accepts]: Start accepts. Automaton has 39280 states and 209319 transitions. Word has length 27 [2020-10-15 18:47:49,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:47:49,152 INFO L481 AbstractCegarLoop]: Abstraction has 39280 states and 209319 transitions. [2020-10-15 18:47:49,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:47:49,152 INFO L276 IsEmpty]: Start isEmpty. Operand 39280 states and 209319 transitions. [2020-10-15 18:47:49,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:47:49,157 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:47:49,157 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:47:49,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2020-10-15 18:47:49,157 INFO L429 AbstractCegarLoop]: === Iteration 64 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:47:49,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:47:49,157 INFO L82 PathProgramCache]: Analyzing trace with hash -639654315, now seen corresponding path program 2 times [2020-10-15 18:47:49,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:47:49,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192231726] [2020-10-15 18:47:49,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:47:49,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:47:49,188 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 18:47:49,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192231726] [2020-10-15 18:47:49,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:47:49,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:47:49,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821685116] [2020-10-15 18:47:49,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:47:49,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:47:49,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:47:49,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:47:49,190 INFO L87 Difference]: Start difference. First operand 39280 states and 209319 transitions. Second operand 7 states. [2020-10-15 18:47:49,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:47:49,874 INFO L93 Difference]: Finished difference Result 90032 states and 438659 transitions. [2020-10-15 18:47:49,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:47:49,875 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-15 18:47:49,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:47:50,141 INFO L225 Difference]: With dead ends: 90032 [2020-10-15 18:47:50,141 INFO L226 Difference]: Without dead ends: 89955 [2020-10-15 18:47:50,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:47:51,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89955 states. [2020-10-15 18:47:52,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89955 to 40208. [2020-10-15 18:47:52,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40208 states. [2020-10-15 18:47:52,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40208 states to 40208 states and 214272 transitions. [2020-10-15 18:47:52,881 INFO L78 Accepts]: Start accepts. Automaton has 40208 states and 214272 transitions. Word has length 27 [2020-10-15 18:47:52,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:47:52,882 INFO L481 AbstractCegarLoop]: Abstraction has 40208 states and 214272 transitions. [2020-10-15 18:47:52,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:47:52,882 INFO L276 IsEmpty]: Start isEmpty. Operand 40208 states and 214272 transitions. [2020-10-15 18:47:52,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:47:52,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:47:52,886 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:47:52,887 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2020-10-15 18:47:52,887 INFO L429 AbstractCegarLoop]: === Iteration 65 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:47:52,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:47:52,887 INFO L82 PathProgramCache]: Analyzing trace with hash -639652920, now seen corresponding path program 2 times [2020-10-15 18:47:52,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:47:52,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742134923] [2020-10-15 18:47:52,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:47:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:47:52,923 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 18:47:52,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742134923] [2020-10-15 18:47:52,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:47:52,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:47:52,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765058740] [2020-10-15 18:47:52,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:47:52,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:47:52,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:47:52,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:47:52,925 INFO L87 Difference]: Start difference. First operand 40208 states and 214272 transitions. Second operand 7 states. [2020-10-15 18:47:53,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:47:53,602 INFO L93 Difference]: Finished difference Result 90501 states and 440366 transitions. [2020-10-15 18:47:53,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:47:53,602 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-15 18:47:53,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:47:53,874 INFO L225 Difference]: With dead ends: 90501 [2020-10-15 18:47:53,874 INFO L226 Difference]: Without dead ends: 90424 [2020-10-15 18:47:53,874 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:47:54,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90424 states. [2020-10-15 18:47:55,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90424 to 40817. [2020-10-15 18:47:55,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40817 states. [2020-10-15 18:47:56,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40817 states to 40817 states and 217501 transitions. [2020-10-15 18:47:56,065 INFO L78 Accepts]: Start accepts. Automaton has 40817 states and 217501 transitions. Word has length 27 [2020-10-15 18:47:56,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:47:56,065 INFO L481 AbstractCegarLoop]: Abstraction has 40817 states and 217501 transitions. [2020-10-15 18:47:56,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:47:56,065 INFO L276 IsEmpty]: Start isEmpty. Operand 40817 states and 217501 transitions. [2020-10-15 18:47:56,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:47:56,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:47:56,070 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:47:56,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2020-10-15 18:47:56,070 INFO L429 AbstractCegarLoop]: === Iteration 66 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:47:56,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:47:56,070 INFO L82 PathProgramCache]: Analyzing trace with hash -639668389, now seen corresponding path program 2 times [2020-10-15 18:47:56,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:47:56,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844355121] [2020-10-15 18:47:56,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:47:56,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:47:56,101 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 18:47:56,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844355121] [2020-10-15 18:47:56,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:47:56,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:47:56,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147366920] [2020-10-15 18:47:56,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:47:56,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:47:56,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:47:56,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:47:56,103 INFO L87 Difference]: Start difference. First operand 40817 states and 217501 transitions. Second operand 7 states. [2020-10-15 18:47:56,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:47:56,800 INFO L93 Difference]: Finished difference Result 91389 states and 444541 transitions. [2020-10-15 18:47:56,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:47:56,800 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-15 18:47:56,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:47:57,078 INFO L225 Difference]: With dead ends: 91389 [2020-10-15 18:47:57,079 INFO L226 Difference]: Without dead ends: 91312 [2020-10-15 18:47:57,079 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:47:58,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91312 states. [2020-10-15 18:48:00,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91312 to 41653. [2020-10-15 18:48:00,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41653 states. [2020-10-15 18:48:00,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41653 states to 41653 states and 221647 transitions. [2020-10-15 18:48:00,160 INFO L78 Accepts]: Start accepts. Automaton has 41653 states and 221647 transitions. Word has length 27 [2020-10-15 18:48:00,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:48:00,160 INFO L481 AbstractCegarLoop]: Abstraction has 41653 states and 221647 transitions. [2020-10-15 18:48:00,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:48:00,160 INFO L276 IsEmpty]: Start isEmpty. Operand 41653 states and 221647 transitions. [2020-10-15 18:48:00,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:48:00,165 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:48:00,165 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:48:00,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2020-10-15 18:48:00,165 INFO L429 AbstractCegarLoop]: === Iteration 67 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:48:00,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:48:00,166 INFO L82 PathProgramCache]: Analyzing trace with hash -639630848, now seen corresponding path program 1 times [2020-10-15 18:48:00,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:48:00,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341973593] [2020-10-15 18:48:00,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:48:00,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:48:00,198 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 18:48:00,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341973593] [2020-10-15 18:48:00,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:48:00,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:48:00,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133767397] [2020-10-15 18:48:00,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:48:00,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:48:00,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:48:00,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:48:00,200 INFO L87 Difference]: Start difference. First operand 41653 states and 221647 transitions. Second operand 7 states. [2020-10-15 18:48:00,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:48:00,933 INFO L93 Difference]: Finished difference Result 96066 states and 468402 transitions. [2020-10-15 18:48:00,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:48:00,934 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-15 18:48:00,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:48:01,228 INFO L225 Difference]: With dead ends: 96066 [2020-10-15 18:48:01,228 INFO L226 Difference]: Without dead ends: 95989 [2020-10-15 18:48:01,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:48:02,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95989 states. [2020-10-15 18:48:03,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95989 to 44034. [2020-10-15 18:48:03,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44034 states. [2020-10-15 18:48:03,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44034 states to 44034 states and 234037 transitions. [2020-10-15 18:48:03,590 INFO L78 Accepts]: Start accepts. Automaton has 44034 states and 234037 transitions. Word has length 27 [2020-10-15 18:48:03,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:48:03,591 INFO L481 AbstractCegarLoop]: Abstraction has 44034 states and 234037 transitions. [2020-10-15 18:48:03,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:48:03,591 INFO L276 IsEmpty]: Start isEmpty. Operand 44034 states and 234037 transitions. [2020-10-15 18:48:03,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:48:03,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:48:03,596 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:48:03,596 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2020-10-15 18:48:03,596 INFO L429 AbstractCegarLoop]: === Iteration 68 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:48:03,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:48:03,596 INFO L82 PathProgramCache]: Analyzing trace with hash -616120448, now seen corresponding path program 2 times [2020-10-15 18:48:03,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:48:03,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705584587] [2020-10-15 18:48:03,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:48:03,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:48:03,625 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 18:48:03,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705584587] [2020-10-15 18:48:03,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:48:03,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:48:03,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038417158] [2020-10-15 18:48:03,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:48:03,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:48:03,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:48:03,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:48:03,627 INFO L87 Difference]: Start difference. First operand 44034 states and 234037 transitions. Second operand 7 states. [2020-10-15 18:48:04,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:48:04,333 INFO L93 Difference]: Finished difference Result 97335 states and 474289 transitions. [2020-10-15 18:48:04,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:48:04,334 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-15 18:48:04,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:48:04,628 INFO L225 Difference]: With dead ends: 97335 [2020-10-15 18:48:04,629 INFO L226 Difference]: Without dead ends: 97258 [2020-10-15 18:48:04,629 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:48:05,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97258 states. [2020-10-15 18:48:06,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97258 to 45832. [2020-10-15 18:48:06,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45832 states. [2020-10-15 18:48:07,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45832 states to 45832 states and 243883 transitions. [2020-10-15 18:48:07,018 INFO L78 Accepts]: Start accepts. Automaton has 45832 states and 243883 transitions. Word has length 27 [2020-10-15 18:48:07,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:48:07,019 INFO L481 AbstractCegarLoop]: Abstraction has 45832 states and 243883 transitions. [2020-10-15 18:48:07,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:48:07,019 INFO L276 IsEmpty]: Start isEmpty. Operand 45832 states and 243883 transitions. [2020-10-15 18:48:07,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:48:07,024 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:48:07,024 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:48:07,024 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2020-10-15 18:48:07,024 INFO L429 AbstractCegarLoop]: === Iteration 69 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:48:07,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:48:07,024 INFO L82 PathProgramCache]: Analyzing trace with hash -263020797, now seen corresponding path program 19 times [2020-10-15 18:48:07,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:48:07,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143883372] [2020-10-15 18:48:07,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:48:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:48:07,083 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:48:07,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143883372] [2020-10-15 18:48:07,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:48:07,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 18:48:07,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428294581] [2020-10-15 18:48:07,084 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:48:07,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:48:07,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:48:07,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:48:07,085 INFO L87 Difference]: Start difference. First operand 45832 states and 243883 transitions. Second operand 11 states. [2020-10-15 18:48:10,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:48:10,049 INFO L93 Difference]: Finished difference Result 206462 states and 913897 transitions. [2020-10-15 18:48:10,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 18:48:10,050 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 18:48:10,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:48:10,623 INFO L225 Difference]: With dead ends: 206462 [2020-10-15 18:48:10,623 INFO L226 Difference]: Without dead ends: 206438 [2020-10-15 18:48:10,623 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1541 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-10-15 18:48:12,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206438 states. [2020-10-15 18:48:14,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206438 to 45730. [2020-10-15 18:48:14,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45730 states. [2020-10-15 18:48:14,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45730 states to 45730 states and 243333 transitions. [2020-10-15 18:48:14,980 INFO L78 Accepts]: Start accepts. Automaton has 45730 states and 243333 transitions. Word has length 27 [2020-10-15 18:48:14,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:48:14,980 INFO L481 AbstractCegarLoop]: Abstraction has 45730 states and 243333 transitions. [2020-10-15 18:48:14,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:48:14,980 INFO L276 IsEmpty]: Start isEmpty. Operand 45730 states and 243333 transitions. [2020-10-15 18:48:14,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:48:14,985 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:48:14,985 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:48:14,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2020-10-15 18:48:14,986 INFO L429 AbstractCegarLoop]: === Iteration 70 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:48:14,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:48:14,986 INFO L82 PathProgramCache]: Analyzing trace with hash -277871037, now seen corresponding path program 20 times [2020-10-15 18:48:14,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:48:14,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990148764] [2020-10-15 18:48:14,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:48:14,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:48:15,052 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:48:15,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990148764] [2020-10-15 18:48:15,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:48:15,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 18:48:15,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707672823] [2020-10-15 18:48:15,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:48:15,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:48:15,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:48:15,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:48:15,054 INFO L87 Difference]: Start difference. First operand 45730 states and 243333 transitions. Second operand 11 states. [2020-10-15 18:48:18,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:48:18,290 INFO L93 Difference]: Finished difference Result 205970 states and 911791 transitions. [2020-10-15 18:48:18,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 18:48:18,290 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 18:48:18,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:48:18,870 INFO L225 Difference]: With dead ends: 205970 [2020-10-15 18:48:18,870 INFO L226 Difference]: Without dead ends: 205940 [2020-10-15 18:48:18,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1548 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-10-15 18:48:20,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205940 states. [2020-10-15 18:48:22,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205940 to 45335. [2020-10-15 18:48:22,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45335 states. [2020-10-15 18:48:22,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45335 states to 45335 states and 241261 transitions. [2020-10-15 18:48:22,955 INFO L78 Accepts]: Start accepts. Automaton has 45335 states and 241261 transitions. Word has length 27 [2020-10-15 18:48:22,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:48:22,955 INFO L481 AbstractCegarLoop]: Abstraction has 45335 states and 241261 transitions. [2020-10-15 18:48:22,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:48:22,956 INFO L276 IsEmpty]: Start isEmpty. Operand 45335 states and 241261 transitions. [2020-10-15 18:48:22,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:48:22,961 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:48:22,961 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:48:22,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2020-10-15 18:48:22,961 INFO L429 AbstractCegarLoop]: === Iteration 71 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:48:22,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:48:22,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1023950403, now seen corresponding path program 21 times [2020-10-15 18:48:22,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:48:22,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836463174] [2020-10-15 18:48:22,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:48:22,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:48:23,038 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:48:23,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836463174] [2020-10-15 18:48:23,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:48:23,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 18:48:23,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122038748] [2020-10-15 18:48:23,040 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:48:23,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:48:23,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:48:23,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:48:23,041 INFO L87 Difference]: Start difference. First operand 45335 states and 241261 transitions. Second operand 11 states. [2020-10-15 18:48:25,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:48:25,742 INFO L93 Difference]: Finished difference Result 205404 states and 909139 transitions. [2020-10-15 18:48:25,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 18:48:25,742 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 18:48:25,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:48:26,372 INFO L225 Difference]: With dead ends: 205404 [2020-10-15 18:48:26,372 INFO L226 Difference]: Without dead ends: 205380 [2020-10-15 18:48:26,373 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1547 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-10-15 18:48:29,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205380 states. [2020-10-15 18:48:31,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205380 to 45076. [2020-10-15 18:48:31,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45076 states. [2020-10-15 18:48:31,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45076 states to 45076 states and 240064 transitions. [2020-10-15 18:48:31,331 INFO L78 Accepts]: Start accepts. Automaton has 45076 states and 240064 transitions. Word has length 27 [2020-10-15 18:48:31,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:48:31,331 INFO L481 AbstractCegarLoop]: Abstraction has 45076 states and 240064 transitions. [2020-10-15 18:48:31,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:48:31,331 INFO L276 IsEmpty]: Start isEmpty. Operand 45076 states and 240064 transitions. [2020-10-15 18:48:31,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:48:31,337 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:48:31,337 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:48:31,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2020-10-15 18:48:31,337 INFO L429 AbstractCegarLoop]: === Iteration 72 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:48:31,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:48:31,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1010439363, now seen corresponding path program 22 times [2020-10-15 18:48:31,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:48:31,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374926054] [2020-10-15 18:48:31,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:48:31,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:48:31,403 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:48:31,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374926054] [2020-10-15 18:48:31,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:48:31,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 18:48:31,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991662243] [2020-10-15 18:48:31,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:48:31,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:48:31,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:48:31,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:48:31,405 INFO L87 Difference]: Start difference. First operand 45076 states and 240064 transitions. Second operand 11 states. [2020-10-15 18:48:34,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:48:34,069 INFO L93 Difference]: Finished difference Result 205143 states and 907975 transitions. [2020-10-15 18:48:34,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 18:48:34,069 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 18:48:34,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:48:34,675 INFO L225 Difference]: With dead ends: 205143 [2020-10-15 18:48:34,676 INFO L226 Difference]: Without dead ends: 205113 [2020-10-15 18:48:34,676 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1562 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-10-15 18:48:36,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205113 states. [2020-10-15 18:48:39,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205113 to 44685. [2020-10-15 18:48:39,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44685 states. [2020-10-15 18:48:40,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44685 states to 44685 states and 238000 transitions. [2020-10-15 18:48:40,017 INFO L78 Accepts]: Start accepts. Automaton has 44685 states and 238000 transitions. Word has length 27 [2020-10-15 18:48:40,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:48:40,017 INFO L481 AbstractCegarLoop]: Abstraction has 44685 states and 238000 transitions. [2020-10-15 18:48:40,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:48:40,017 INFO L276 IsEmpty]: Start isEmpty. Operand 44685 states and 238000 transitions. [2020-10-15 18:48:40,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:48:40,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:48:40,022 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:48:40,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2020-10-15 18:48:40,022 INFO L429 AbstractCegarLoop]: === Iteration 73 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:48:40,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:48:40,023 INFO L82 PathProgramCache]: Analyzing trace with hash -377078589, now seen corresponding path program 23 times [2020-10-15 18:48:40,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:48:40,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987624734] [2020-10-15 18:48:40,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:48:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:48:40,096 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:48:40,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987624734] [2020-10-15 18:48:40,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:48:40,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 18:48:40,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431054705] [2020-10-15 18:48:40,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:48:40,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:48:40,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:48:40,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:48:40,098 INFO L87 Difference]: Start difference. First operand 44685 states and 238000 transitions. Second operand 11 states. [2020-10-15 18:48:42,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:48:42,697 INFO L93 Difference]: Finished difference Result 204573 states and 905311 transitions. [2020-10-15 18:48:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 18:48:42,698 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 18:48:42,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:48:43,274 INFO L225 Difference]: With dead ends: 204573 [2020-10-15 18:48:43,275 INFO L226 Difference]: Without dead ends: 204549 [2020-10-15 18:48:43,275 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1554 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-10-15 18:48:45,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204549 states. [2020-10-15 18:48:48,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204549 to 44434. [2020-10-15 18:48:48,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44434 states. [2020-10-15 18:48:48,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44434 states to 44434 states and 236823 transitions. [2020-10-15 18:48:48,452 INFO L78 Accepts]: Start accepts. Automaton has 44434 states and 236823 transitions. Word has length 27 [2020-10-15 18:48:48,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:48:48,452 INFO L481 AbstractCegarLoop]: Abstraction has 44434 states and 236823 transitions. [2020-10-15 18:48:48,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:48:48,452 INFO L276 IsEmpty]: Start isEmpty. Operand 44434 states and 236823 transitions. [2020-10-15 18:48:48,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 18:48:48,457 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:48:48,457 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:48:48,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2020-10-15 18:48:48,458 INFO L429 AbstractCegarLoop]: === Iteration 74 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:48:48,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:48:48,458 INFO L82 PathProgramCache]: Analyzing trace with hash -375739389, now seen corresponding path program 24 times [2020-10-15 18:48:48,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:48:48,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436748790] [2020-10-15 18:48:48,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:48:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:48:48,530 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:48:48,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436748790] [2020-10-15 18:48:48,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:48:48,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 18:48:48,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980875373] [2020-10-15 18:48:48,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:48:48,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:48:48,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:48:48,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:48:48,532 INFO L87 Difference]: Start difference. First operand 44434 states and 236823 transitions. Second operand 11 states. [2020-10-15 18:48:51,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:48:51,282 INFO L93 Difference]: Finished difference Result 204089 states and 903225 transitions. [2020-10-15 18:48:51,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 18:48:51,282 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 18:48:51,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:48:51,829 INFO L225 Difference]: With dead ends: 204089 [2020-10-15 18:48:51,829 INFO L226 Difference]: Without dead ends: 204054 [2020-10-15 18:48:51,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1564 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-10-15 18:48:53,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204054 states. [2020-10-15 18:48:56,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204054 to 43794. [2020-10-15 18:48:56,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43794 states. [2020-10-15 18:48:57,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43794 states to 43794 states and 233791 transitions. [2020-10-15 18:48:57,148 INFO L78 Accepts]: Start accepts. Automaton has 43794 states and 233791 transitions. Word has length 27 [2020-10-15 18:48:57,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:48:57,148 INFO L481 AbstractCegarLoop]: Abstraction has 43794 states and 233791 transitions. [2020-10-15 18:48:57,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:48:57,148 INFO L276 IsEmpty]: Start isEmpty. Operand 43794 states and 233791 transitions. [2020-10-15 18:48:57,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:48:57,157 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:48:57,157 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:48:57,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2020-10-15 18:48:57,157 INFO L429 AbstractCegarLoop]: === Iteration 75 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:48:57,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:48:57,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1079064756, now seen corresponding path program 1 times [2020-10-15 18:48:57,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:48:57,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238787332] [2020-10-15 18:48:57,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:48:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:48:57,208 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 18:48:57,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238787332] [2020-10-15 18:48:57,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934288460] [2020-10-15 18:48:57,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:48:57,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:48:57,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:48:57,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:48:57,341 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 18:48:57,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:48:57,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:48:57,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291621402] [2020-10-15 18:48:57,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:48:57,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:48:57,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:48:57,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:48:57,344 INFO L87 Difference]: Start difference. First operand 43794 states and 233791 transitions. Second operand 11 states. [2020-10-15 18:48:58,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:48:58,765 INFO L93 Difference]: Finished difference Result 139868 states and 649854 transitions. [2020-10-15 18:48:58,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:48:58,765 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 18:48:58,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:48:59,214 INFO L225 Difference]: With dead ends: 139868 [2020-10-15 18:48:59,215 INFO L226 Difference]: Without dead ends: 139824 [2020-10-15 18:48:59,215 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:49:00,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139824 states. [2020-10-15 18:49:02,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139824 to 44208. [2020-10-15 18:49:02,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44208 states. [2020-10-15 18:49:02,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44208 states to 44208 states and 235737 transitions. [2020-10-15 18:49:02,383 INFO L78 Accepts]: Start accepts. Automaton has 44208 states and 235737 transitions. Word has length 29 [2020-10-15 18:49:02,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:49:02,383 INFO L481 AbstractCegarLoop]: Abstraction has 44208 states and 235737 transitions. [2020-10-15 18:49:02,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:49:02,383 INFO L276 IsEmpty]: Start isEmpty. Operand 44208 states and 235737 transitions. [2020-10-15 18:49:02,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:49:02,392 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:49:02,392 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:49:02,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable149 [2020-10-15 18:49:02,593 INFO L429 AbstractCegarLoop]: === Iteration 76 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:49:02,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:49:02,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1079080225, now seen corresponding path program 1 times [2020-10-15 18:49:02,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:49:02,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836946242] [2020-10-15 18:49:02,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:49:02,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:49:02,650 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 18:49:02,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836946242] [2020-10-15 18:49:02,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843657302] [2020-10-15 18:49:02,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:49:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:49:02,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:49:02,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:49:02,758 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 18:49:02,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:49:02,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:49:02,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299983665] [2020-10-15 18:49:02,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:49:02,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:49:02,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:49:02,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:49:02,760 INFO L87 Difference]: Start difference. First operand 44208 states and 235737 transitions. Second operand 11 states. [2020-10-15 18:49:04,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:49:04,251 INFO L93 Difference]: Finished difference Result 138663 states and 644549 transitions. [2020-10-15 18:49:04,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:49:04,251 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 18:49:04,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:49:05,455 INFO L225 Difference]: With dead ends: 138663 [2020-10-15 18:49:05,456 INFO L226 Difference]: Without dead ends: 138619 [2020-10-15 18:49:05,456 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:49:06,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138619 states. [2020-10-15 18:49:08,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138619 to 44346. [2020-10-15 18:49:08,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44346 states. [2020-10-15 18:49:08,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44346 states to 44346 states and 236212 transitions. [2020-10-15 18:49:08,586 INFO L78 Accepts]: Start accepts. Automaton has 44346 states and 236212 transitions. Word has length 29 [2020-10-15 18:49:08,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:49:08,586 INFO L481 AbstractCegarLoop]: Abstraction has 44346 states and 236212 transitions. [2020-10-15 18:49:08,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:49:08,586 INFO L276 IsEmpty]: Start isEmpty. Operand 44346 states and 236212 transitions. [2020-10-15 18:49:08,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:49:08,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:49:08,595 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:49:08,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150,62 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:49:08,810 INFO L429 AbstractCegarLoop]: === Iteration 77 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:49:08,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:49:08,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1079042684, now seen corresponding path program 1 times [2020-10-15 18:49:08,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:49:08,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645392010] [2020-10-15 18:49:08,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:49:08,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:49:08,861 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 18:49:08,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645392010] [2020-10-15 18:49:08,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969719556] [2020-10-15 18:49:08,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:49:08,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:49:08,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:49:08,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:49:08,974 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 18:49:08,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:49:08,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:49:08,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517040899] [2020-10-15 18:49:08,975 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:49:08,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:49:08,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:49:08,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:49:08,975 INFO L87 Difference]: Start difference. First operand 44346 states and 236212 transitions. Second operand 11 states. [2020-10-15 18:49:10,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:49:10,343 INFO L93 Difference]: Finished difference Result 137475 states and 638613 transitions. [2020-10-15 18:49:10,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:49:10,343 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 18:49:10,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:49:10,728 INFO L225 Difference]: With dead ends: 137475 [2020-10-15 18:49:10,728 INFO L226 Difference]: Without dead ends: 137431 [2020-10-15 18:49:10,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:49:12,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137431 states. [2020-10-15 18:49:14,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137431 to 44001. [2020-10-15 18:49:14,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44001 states. [2020-10-15 18:49:14,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44001 states to 44001 states and 234197 transitions. [2020-10-15 18:49:14,483 INFO L78 Accepts]: Start accepts. Automaton has 44001 states and 234197 transitions. Word has length 29 [2020-10-15 18:49:14,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:49:14,483 INFO L481 AbstractCegarLoop]: Abstraction has 44001 states and 234197 transitions. [2020-10-15 18:49:14,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:49:14,483 INFO L276 IsEmpty]: Start isEmpty. Operand 44001 states and 234197 transitions. [2020-10-15 18:49:14,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:49:14,491 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:49:14,491 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:49:14,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151,63 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:49:14,692 INFO L429 AbstractCegarLoop]: === Iteration 78 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:49:14,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:49:14,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1076743476, now seen corresponding path program 2 times [2020-10-15 18:49:14,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:49:14,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601387728] [2020-10-15 18:49:14,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:49:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:49:14,741 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 18:49:14,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601387728] [2020-10-15 18:49:14,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211713041] [2020-10-15 18:49:14,742 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:49:14,821 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 18:49:14,821 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:49:14,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:49:14,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:49:14,844 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 18:49:14,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:49:14,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:49:14,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117882467] [2020-10-15 18:49:14,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:49:14,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:49:14,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:49:14,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:49:14,845 INFO L87 Difference]: Start difference. First operand 44001 states and 234197 transitions. Second operand 11 states. [2020-10-15 18:49:16,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:49:16,220 INFO L93 Difference]: Finished difference Result 137660 states and 639047 transitions. [2020-10-15 18:49:16,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:49:16,221 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 18:49:16,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:49:16,595 INFO L225 Difference]: With dead ends: 137660 [2020-10-15 18:49:16,595 INFO L226 Difference]: Without dead ends: 137614 [2020-10-15 18:49:16,596 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:49:17,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137614 states. [2020-10-15 18:49:19,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137614 to 43606. [2020-10-15 18:49:19,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43606 states. [2020-10-15 18:49:19,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43606 states to 43606 states and 231805 transitions. [2020-10-15 18:49:19,570 INFO L78 Accepts]: Start accepts. Automaton has 43606 states and 231805 transitions. Word has length 29 [2020-10-15 18:49:19,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:49:19,570 INFO L481 AbstractCegarLoop]: Abstraction has 43606 states and 231805 transitions. [2020-10-15 18:49:19,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:49:19,570 INFO L276 IsEmpty]: Start isEmpty. Operand 43606 states and 231805 transitions. [2020-10-15 18:49:19,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:49:19,578 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:49:19,578 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:49:19,778 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:49:19,779 INFO L429 AbstractCegarLoop]: === Iteration 79 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:49:19,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:49:19,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1091609185, now seen corresponding path program 2 times [2020-10-15 18:49:19,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:49:19,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493017857] [2020-10-15 18:49:19,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:49:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:49:19,831 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 18:49:19,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493017857] [2020-10-15 18:49:19,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041994800] [2020-10-15 18:49:19,832 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:49:19,959 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 18:49:19,959 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:49:19,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:49:19,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:49:19,991 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 18:49:19,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:49:19,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:49:19,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16438142] [2020-10-15 18:49:19,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:49:19,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:49:19,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:49:19,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:49:19,993 INFO L87 Difference]: Start difference. First operand 43606 states and 231805 transitions. Second operand 11 states. [2020-10-15 18:49:21,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:49:21,319 INFO L93 Difference]: Finished difference Result 136227 states and 631974 transitions. [2020-10-15 18:49:21,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:49:21,320 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 18:49:21,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:49:22,458 INFO L225 Difference]: With dead ends: 136227 [2020-10-15 18:49:22,458 INFO L226 Difference]: Without dead ends: 136181 [2020-10-15 18:49:22,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:49:23,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136181 states. [2020-10-15 18:49:25,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136181 to 43334. [2020-10-15 18:49:25,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43334 states. [2020-10-15 18:49:25,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43334 states to 43334 states and 230138 transitions. [2020-10-15 18:49:25,207 INFO L78 Accepts]: Start accepts. Automaton has 43334 states and 230138 transitions. Word has length 29 [2020-10-15 18:49:25,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:49:25,208 INFO L481 AbstractCegarLoop]: Abstraction has 43334 states and 230138 transitions. [2020-10-15 18:49:25,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:49:25,208 INFO L276 IsEmpty]: Start isEmpty. Operand 43334 states and 230138 transitions. [2020-10-15 18:49:25,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:49:25,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:49:25,215 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:49:25,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153,65 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:49:25,416 INFO L429 AbstractCegarLoop]: === Iteration 80 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:49:25,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:49:25,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1055532284, now seen corresponding path program 2 times [2020-10-15 18:49:25,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:49:25,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583102833] [2020-10-15 18:49:25,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:49:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:49:25,463 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 18:49:25,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583102833] [2020-10-15 18:49:25,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502840654] [2020-10-15 18:49:25,464 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:49:25,550 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 18:49:25,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:49:25,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:49:25,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:49:25,577 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 18:49:25,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:49:25,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:49:25,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140315892] [2020-10-15 18:49:25,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:49:25,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:49:25,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:49:25,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:49:25,578 INFO L87 Difference]: Start difference. First operand 43334 states and 230138 transitions. Second operand 11 states. [2020-10-15 18:49:26,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:49:26,923 INFO L93 Difference]: Finished difference Result 135193 states and 626279 transitions. [2020-10-15 18:49:26,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:49:26,924 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 18:49:26,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:49:27,330 INFO L225 Difference]: With dead ends: 135193 [2020-10-15 18:49:27,331 INFO L226 Difference]: Without dead ends: 135147 [2020-10-15 18:49:27,331 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:49:28,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135147 states. [2020-10-15 18:49:31,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135147 to 43128. [2020-10-15 18:49:31,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43128 states. [2020-10-15 18:49:31,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43128 states to 43128 states and 228903 transitions. [2020-10-15 18:49:31,411 INFO L78 Accepts]: Start accepts. Automaton has 43128 states and 228903 transitions. Word has length 29 [2020-10-15 18:49:31,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:49:31,411 INFO L481 AbstractCegarLoop]: Abstraction has 43128 states and 228903 transitions. [2020-10-15 18:49:31,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:49:31,412 INFO L276 IsEmpty]: Start isEmpty. Operand 43128 states and 228903 transitions. [2020-10-15 18:49:31,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:49:31,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:49:31,424 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:49:31,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable154 [2020-10-15 18:49:31,640 INFO L429 AbstractCegarLoop]: === Iteration 81 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:49:31,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:49:31,640 INFO L82 PathProgramCache]: Analyzing trace with hash -233799798, now seen corresponding path program 3 times [2020-10-15 18:49:31,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:49:31,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915770652] [2020-10-15 18:49:31,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:49:31,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:49:31,692 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 18:49:31,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915770652] [2020-10-15 18:49:31,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746747788] [2020-10-15 18:49:31,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:49:31,781 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-15 18:49:31,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:49:31,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:49:31,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:49:31,803 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 18:49:31,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:49:31,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:49:31,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561449370] [2020-10-15 18:49:31,805 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:49:31,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:49:31,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:49:31,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:49:31,805 INFO L87 Difference]: Start difference. First operand 43128 states and 228903 transitions. Second operand 11 states. [2020-10-15 18:49:33,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:49:33,243 INFO L93 Difference]: Finished difference Result 135315 states and 626661 transitions. [2020-10-15 18:49:33,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:49:33,244 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 18:49:33,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:49:33,637 INFO L225 Difference]: With dead ends: 135315 [2020-10-15 18:49:33,637 INFO L226 Difference]: Without dead ends: 135271 [2020-10-15 18:49:33,637 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:49:34,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135271 states. [2020-10-15 18:49:36,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135271 to 42904. [2020-10-15 18:49:36,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42904 states. [2020-10-15 18:49:36,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42904 states to 42904 states and 227530 transitions. [2020-10-15 18:49:36,731 INFO L78 Accepts]: Start accepts. Automaton has 42904 states and 227530 transitions. Word has length 29 [2020-10-15 18:49:36,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:49:36,732 INFO L481 AbstractCegarLoop]: Abstraction has 42904 states and 227530 transitions. [2020-10-15 18:49:36,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:49:36,732 INFO L276 IsEmpty]: Start isEmpty. Operand 42904 states and 227530 transitions. [2020-10-15 18:49:36,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:49:36,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:49:36,740 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:49:36,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable155 [2020-10-15 18:49:36,941 INFO L429 AbstractCegarLoop]: === Iteration 82 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:49:36,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:49:36,942 INFO L82 PathProgramCache]: Analyzing trace with hash -938803546, now seen corresponding path program 1 times [2020-10-15 18:49:36,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:49:36,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620699269] [2020-10-15 18:49:36,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:49:36,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:49:36,991 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:49:36,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620699269] [2020-10-15 18:49:36,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542771988] [2020-10-15 18:49:36,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:49:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:49:37,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:49:37,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:49:37,099 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:49:37,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:49:37,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:49:37,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959287327] [2020-10-15 18:49:37,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:49:37,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:49:37,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:49:37,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:49:37,101 INFO L87 Difference]: Start difference. First operand 42904 states and 227530 transitions. Second operand 11 states. [2020-10-15 18:49:38,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:49:38,558 INFO L93 Difference]: Finished difference Result 140989 states and 654549 transitions. [2020-10-15 18:49:38,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:49:38,558 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 18:49:38,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:49:39,002 INFO L225 Difference]: With dead ends: 140989 [2020-10-15 18:49:39,002 INFO L226 Difference]: Without dead ends: 140945 [2020-10-15 18:49:39,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:49:41,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140945 states. [2020-10-15 18:49:42,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140945 to 42930. [2020-10-15 18:49:42,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42930 states. [2020-10-15 18:49:42,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42930 states to 42930 states and 227280 transitions. [2020-10-15 18:49:42,596 INFO L78 Accepts]: Start accepts. Automaton has 42930 states and 227280 transitions. Word has length 29 [2020-10-15 18:49:42,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:49:42,597 INFO L481 AbstractCegarLoop]: Abstraction has 42930 states and 227280 transitions. [2020-10-15 18:49:42,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:49:42,597 INFO L276 IsEmpty]: Start isEmpty. Operand 42930 states and 227280 transitions. [2020-10-15 18:49:42,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:49:42,604 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:49:42,605 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:49:42,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156,68 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:49:42,805 INFO L429 AbstractCegarLoop]: === Iteration 83 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:49:42,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:49:42,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1231154336, now seen corresponding path program 4 times [2020-10-15 18:49:42,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:49:42,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541972661] [2020-10-15 18:49:42,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:49:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:49:42,860 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 18:49:42,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541972661] [2020-10-15 18:49:42,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515549372] [2020-10-15 18:49:42,861 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:49:42,947 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 18:49:42,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:49:42,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:49:42,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:49:42,968 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 18:49:42,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:49:42,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:49:42,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153343870] [2020-10-15 18:49:42,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:49:42,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:49:42,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:49:42,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:49:42,969 INFO L87 Difference]: Start difference. First operand 42930 states and 227280 transitions. Second operand 11 states. [2020-10-15 18:49:44,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:49:44,336 INFO L93 Difference]: Finished difference Result 136674 states and 632799 transitions. [2020-10-15 18:49:44,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:49:44,336 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 18:49:44,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:49:44,738 INFO L225 Difference]: With dead ends: 136674 [2020-10-15 18:49:44,738 INFO L226 Difference]: Without dead ends: 136628 [2020-10-15 18:49:44,739 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:49:46,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136628 states. [2020-10-15 18:49:47,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136628 to 43133. [2020-10-15 18:49:47,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43133 states. [2020-10-15 18:49:47,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43133 states to 43133 states and 228222 transitions. [2020-10-15 18:49:47,771 INFO L78 Accepts]: Start accepts. Automaton has 43133 states and 228222 transitions. Word has length 29 [2020-10-15 18:49:47,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:49:47,771 INFO L481 AbstractCegarLoop]: Abstraction has 43133 states and 228222 transitions. [2020-10-15 18:49:47,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:49:47,771 INFO L276 IsEmpty]: Start isEmpty. Operand 43133 states and 228222 transitions. [2020-10-15 18:49:47,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:49:47,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:49:47,779 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:49:47,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable157 [2020-10-15 18:49:47,980 INFO L429 AbstractCegarLoop]: === Iteration 84 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:49:47,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:49:47,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1231140262, now seen corresponding path program 2 times [2020-10-15 18:49:47,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:49:47,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739904933] [2020-10-15 18:49:47,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:49:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:49:48,028 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 18:49:48,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739904933] [2020-10-15 18:49:48,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295434899] [2020-10-15 18:49:48,029 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:49:48,111 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 18:49:48,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:49:48,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:49:48,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:49:48,131 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 18:49:48,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:49:48,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:49:48,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752825289] [2020-10-15 18:49:48,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:49:48,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:49:48,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:49:48,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:49:48,133 INFO L87 Difference]: Start difference. First operand 43133 states and 228222 transitions. Second operand 11 states. [2020-10-15 18:49:49,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:49:49,814 INFO L93 Difference]: Finished difference Result 137702 states and 638553 transitions. [2020-10-15 18:49:49,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:49:49,815 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 18:49:49,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:49:50,213 INFO L225 Difference]: With dead ends: 137702 [2020-10-15 18:49:50,213 INFO L226 Difference]: Without dead ends: 137652 [2020-10-15 18:49:50,214 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:49:51,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137652 states. [2020-10-15 18:49:53,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137652 to 42970. [2020-10-15 18:49:53,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42970 states. [2020-10-15 18:49:53,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42970 states to 42970 states and 227334 transitions. [2020-10-15 18:49:53,238 INFO L78 Accepts]: Start accepts. Automaton has 42970 states and 227334 transitions. Word has length 29 [2020-10-15 18:49:53,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:49:53,238 INFO L481 AbstractCegarLoop]: Abstraction has 42970 states and 227334 transitions. [2020-10-15 18:49:53,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:49:53,238 INFO L276 IsEmpty]: Start isEmpty. Operand 42970 states and 227334 transitions. [2020-10-15 18:49:53,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:49:53,246 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:49:53,246 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:49:53,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable158 [2020-10-15 18:49:53,447 INFO L429 AbstractCegarLoop]: === Iteration 85 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:49:53,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:49:53,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1231177803, now seen corresponding path program 1 times [2020-10-15 18:49:53,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:49:53,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914597594] [2020-10-15 18:49:53,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:49:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:49:53,494 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 18:49:53,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914597594] [2020-10-15 18:49:53,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151211129] [2020-10-15 18:49:53,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:49:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:49:53,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:49:53,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:49:53,596 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 18:49:53,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:49:53,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:49:53,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368026386] [2020-10-15 18:49:53,597 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:49:53,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:49:53,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:49:53,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:49:53,597 INFO L87 Difference]: Start difference. First operand 42970 states and 227334 transitions. Second operand 11 states. [2020-10-15 18:49:54,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:49:54,908 INFO L93 Difference]: Finished difference Result 136895 states and 634251 transitions. [2020-10-15 18:49:54,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:49:54,908 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 18:49:54,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:49:55,290 INFO L225 Difference]: With dead ends: 136895 [2020-10-15 18:49:55,290 INFO L226 Difference]: Without dead ends: 136851 [2020-10-15 18:49:55,290 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:49:56,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136851 states. [2020-10-15 18:49:58,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136851 to 42730. [2020-10-15 18:49:58,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42730 states. [2020-10-15 18:49:58,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42730 states to 42730 states and 225896 transitions. [2020-10-15 18:49:58,979 INFO L78 Accepts]: Start accepts. Automaton has 42730 states and 225896 transitions. Word has length 29 [2020-10-15 18:49:58,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:49:58,979 INFO L481 AbstractCegarLoop]: Abstraction has 42730 states and 225896 transitions. [2020-10-15 18:49:58,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:49:58,979 INFO L276 IsEmpty]: Start isEmpty. Operand 42730 states and 225896 transitions. [2020-10-15 18:49:58,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:49:58,987 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:49:58,987 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:49:59,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable159 [2020-10-15 18:49:59,195 INFO L429 AbstractCegarLoop]: === Iteration 86 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:49:59,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:49:59,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1254688203, now seen corresponding path program 2 times [2020-10-15 18:49:59,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:49:59,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145476150] [2020-10-15 18:49:59,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:49:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:49:59,244 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 18:49:59,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145476150] [2020-10-15 18:49:59,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768445716] [2020-10-15 18:49:59,245 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:49:59,332 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 18:49:59,332 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:49:59,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:49:59,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:49:59,350 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 18:49:59,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:49:59,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:49:59,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711984851] [2020-10-15 18:49:59,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:49:59,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:49:59,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:49:59,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:49:59,352 INFO L87 Difference]: Start difference. First operand 42730 states and 225896 transitions. Second operand 11 states. [2020-10-15 18:50:00,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:50:00,715 INFO L93 Difference]: Finished difference Result 136603 states and 632426 transitions. [2020-10-15 18:50:00,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:50:00,716 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 18:50:00,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:50:01,111 INFO L225 Difference]: With dead ends: 136603 [2020-10-15 18:50:01,111 INFO L226 Difference]: Without dead ends: 136553 [2020-10-15 18:50:01,111 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:50:02,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136553 states. [2020-10-15 18:50:03,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136553 to 42336. [2020-10-15 18:50:03,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42336 states. [2020-10-15 18:50:04,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42336 states to 42336 states and 223735 transitions. [2020-10-15 18:50:04,087 INFO L78 Accepts]: Start accepts. Automaton has 42336 states and 223735 transitions. Word has length 29 [2020-10-15 18:50:04,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:50:04,087 INFO L481 AbstractCegarLoop]: Abstraction has 42336 states and 223735 transitions. [2020-10-15 18:50:04,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:50:04,087 INFO L276 IsEmpty]: Start isEmpty. Operand 42336 states and 223735 transitions. [2020-10-15 18:50:04,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:50:04,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:50:04,095 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:50:04,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160,72 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:50:04,296 INFO L429 AbstractCegarLoop]: === Iteration 87 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:50:04,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:50:04,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1636984727, now seen corresponding path program 3 times [2020-10-15 18:50:04,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:50:04,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516432189] [2020-10-15 18:50:04,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:50:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:50:04,349 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:50:04,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516432189] [2020-10-15 18:50:04,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537448063] [2020-10-15 18:50:04,350 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:50:04,434 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-15 18:50:04,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:50:04,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:50:04,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:50:04,465 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:50:04,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:50:04,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:50:04,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253044928] [2020-10-15 18:50:04,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:50:04,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:50:04,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:50:04,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:50:04,466 INFO L87 Difference]: Start difference. First operand 42336 states and 223735 transitions. Second operand 11 states. [2020-10-15 18:50:05,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:50:05,801 INFO L93 Difference]: Finished difference Result 136165 states and 630523 transitions. [2020-10-15 18:50:05,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:50:05,802 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 18:50:05,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:50:06,971 INFO L225 Difference]: With dead ends: 136165 [2020-10-15 18:50:06,971 INFO L226 Difference]: Without dead ends: 136121 [2020-10-15 18:50:06,971 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:50:08,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136121 states. [2020-10-15 18:50:09,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136121 to 42190. [2020-10-15 18:50:09,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42190 states. [2020-10-15 18:50:09,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42190 states to 42190 states and 222836 transitions. [2020-10-15 18:50:09,790 INFO L78 Accepts]: Start accepts. Automaton has 42190 states and 222836 transitions. Word has length 29 [2020-10-15 18:50:09,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:50:09,790 INFO L481 AbstractCegarLoop]: Abstraction has 42190 states and 222836 transitions. [2020-10-15 18:50:09,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:50:09,791 INFO L276 IsEmpty]: Start isEmpty. Operand 42190 states and 222836 transitions. [2020-10-15 18:50:09,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:50:09,799 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:50:09,799 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:50:09,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161,73 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:50:10,000 INFO L429 AbstractCegarLoop]: === Iteration 88 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:50:10,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:50:10,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1194503706, now seen corresponding path program 3 times [2020-10-15 18:50:10,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:50:10,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894401516] [2020-10-15 18:50:10,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:50:10,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:50:10,054 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:50:10,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894401516] [2020-10-15 18:50:10,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580389679] [2020-10-15 18:50:10,055 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:50:10,138 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-15 18:50:10,138 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:50:10,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:50:10,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:50:10,158 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:50:10,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:50:10,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:50:10,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660360678] [2020-10-15 18:50:10,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:50:10,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:50:10,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:50:10,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:50:10,159 INFO L87 Difference]: Start difference. First operand 42190 states and 222836 transitions. Second operand 11 states. [2020-10-15 18:50:11,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:50:11,466 INFO L93 Difference]: Finished difference Result 135620 states and 627622 transitions. [2020-10-15 18:50:11,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:50:11,467 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 18:50:11,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:50:11,912 INFO L225 Difference]: With dead ends: 135620 [2020-10-15 18:50:11,913 INFO L226 Difference]: Without dead ends: 135576 [2020-10-15 18:50:11,913 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:50:13,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135576 states. [2020-10-15 18:50:14,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135576 to 42095. [2020-10-15 18:50:14,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42095 states. [2020-10-15 18:50:14,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42095 states to 42095 states and 222269 transitions. [2020-10-15 18:50:14,786 INFO L78 Accepts]: Start accepts. Automaton has 42095 states and 222269 transitions. Word has length 29 [2020-10-15 18:50:14,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:50:14,786 INFO L481 AbstractCegarLoop]: Abstraction has 42095 states and 222269 transitions. [2020-10-15 18:50:14,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:50:14,786 INFO L276 IsEmpty]: Start isEmpty. Operand 42095 states and 222269 transitions. [2020-10-15 18:50:14,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:50:14,794 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:50:14,794 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:50:14,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162,74 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:50:14,995 INFO L429 AbstractCegarLoop]: === Iteration 89 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:50:14,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:50:14,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1497105939, now seen corresponding path program 4 times [2020-10-15 18:50:14,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:50:14,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797056060] [2020-10-15 18:50:14,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:50:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:50:15,046 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:50:15,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797056060] [2020-10-15 18:50:15,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668371618] [2020-10-15 18:50:15,046 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:50:15,738 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 18:50:15,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:50:15,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:50:15,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:50:15,760 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:50:15,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:50:15,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:50:15,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156644409] [2020-10-15 18:50:15,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:50:15,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:50:15,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:50:15,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:50:15,762 INFO L87 Difference]: Start difference. First operand 42095 states and 222269 transitions. Second operand 11 states. [2020-10-15 18:50:17,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:50:17,146 INFO L93 Difference]: Finished difference Result 137900 states and 638782 transitions. [2020-10-15 18:50:17,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:50:17,147 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 18:50:17,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:50:17,555 INFO L225 Difference]: With dead ends: 137900 [2020-10-15 18:50:17,555 INFO L226 Difference]: Without dead ends: 137850 [2020-10-15 18:50:17,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:50:18,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137850 states. [2020-10-15 18:50:20,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137850 to 42209. [2020-10-15 18:50:20,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42209 states. [2020-10-15 18:50:20,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42209 states to 42209 states and 222796 transitions. [2020-10-15 18:50:20,606 INFO L78 Accepts]: Start accepts. Automaton has 42209 states and 222796 transitions. Word has length 29 [2020-10-15 18:50:20,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:50:20,606 INFO L481 AbstractCegarLoop]: Abstraction has 42209 states and 222796 transitions. [2020-10-15 18:50:20,606 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:50:20,606 INFO L276 IsEmpty]: Start isEmpty. Operand 42209 states and 222796 transitions. [2020-10-15 18:50:20,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:50:20,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:50:20,614 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:50:20,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163,75 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:50:20,815 INFO L429 AbstractCegarLoop]: === Iteration 90 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:50:20,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:50:20,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1497107334, now seen corresponding path program 4 times [2020-10-15 18:50:20,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:50:20,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186580092] [2020-10-15 18:50:20,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:50:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:50:20,867 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:50:20,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186580092] [2020-10-15 18:50:20,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560104065] [2020-10-15 18:50:20,868 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:50:20,954 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 18:50:20,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:50:20,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:50:20,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:50:20,975 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:50:20,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:50:20,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:50:20,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938330555] [2020-10-15 18:50:20,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:50:20,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:50:20,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:50:20,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:50:20,976 INFO L87 Difference]: Start difference. First operand 42209 states and 222796 transitions. Second operand 11 states. [2020-10-15 18:50:22,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:50:22,433 INFO L93 Difference]: Finished difference Result 136803 states and 633722 transitions. [2020-10-15 18:50:22,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:50:22,434 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 18:50:22,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:50:22,840 INFO L225 Difference]: With dead ends: 136803 [2020-10-15 18:50:22,840 INFO L226 Difference]: Without dead ends: 136753 [2020-10-15 18:50:22,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:50:24,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136753 states. [2020-10-15 18:50:26,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136753 to 42058. [2020-10-15 18:50:26,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42058 states. [2020-10-15 18:50:26,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42058 states to 42058 states and 221940 transitions. [2020-10-15 18:50:26,796 INFO L78 Accepts]: Start accepts. Automaton has 42058 states and 221940 transitions. Word has length 29 [2020-10-15 18:50:26,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:50:26,797 INFO L481 AbstractCegarLoop]: Abstraction has 42058 states and 221940 transitions. [2020-10-15 18:50:26,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:50:26,797 INFO L276 IsEmpty]: Start isEmpty. Operand 42058 states and 221940 transitions. [2020-10-15 18:50:26,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:50:26,806 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:50:26,806 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:50:27,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164,76 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:50:27,007 INFO L429 AbstractCegarLoop]: === Iteration 91 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:50:27,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:50:27,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1497129406, now seen corresponding path program 1 times [2020-10-15 18:50:27,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:50:27,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747424634] [2020-10-15 18:50:27,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:50:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:50:27,054 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:50:27,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747424634] [2020-10-15 18:50:27,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712531765] [2020-10-15 18:50:27,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:50:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:50:27,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:50:27,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:50:27,160 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:50:27,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:50:27,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:50:27,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032022574] [2020-10-15 18:50:27,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:50:27,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:50:27,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:50:27,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:50:27,162 INFO L87 Difference]: Start difference. First operand 42058 states and 221940 transitions. Second operand 11 states. [2020-10-15 18:50:28,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:50:28,627 INFO L93 Difference]: Finished difference Result 136837 states and 634815 transitions. [2020-10-15 18:50:28,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:50:28,627 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 18:50:28,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:50:29,045 INFO L225 Difference]: With dead ends: 136837 [2020-10-15 18:50:29,045 INFO L226 Difference]: Without dead ends: 136793 [2020-10-15 18:50:29,045 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:50:30,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136793 states. [2020-10-15 18:50:32,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136793 to 41929. [2020-10-15 18:50:32,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41929 states. [2020-10-15 18:50:32,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41929 states to 41929 states and 221167 transitions. [2020-10-15 18:50:32,270 INFO L78 Accepts]: Start accepts. Automaton has 41929 states and 221167 transitions. Word has length 29 [2020-10-15 18:50:32,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:50:32,270 INFO L481 AbstractCegarLoop]: Abstraction has 41929 states and 221167 transitions. [2020-10-15 18:50:32,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:50:32,270 INFO L276 IsEmpty]: Start isEmpty. Operand 41929 states and 221167 transitions. [2020-10-15 18:50:32,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:50:32,280 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:50:32,280 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:50:32,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165,77 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:50:32,480 INFO L429 AbstractCegarLoop]: === Iteration 92 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:50:32,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:50:32,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1520639806, now seen corresponding path program 2 times [2020-10-15 18:50:32,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:50:32,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014149493] [2020-10-15 18:50:32,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:50:32,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:50:32,532 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:50:32,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014149493] [2020-10-15 18:50:32,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067293834] [2020-10-15 18:50:32,533 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:50:32,620 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 18:50:32,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 18:50:32,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 18:50:32,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:50:32,650 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 18:50:32,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:50:32,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 18:50:32,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362363820] [2020-10-15 18:50:32,653 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 18:50:32,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:50:32,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 18:50:32,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:50:32,653 INFO L87 Difference]: Start difference. First operand 41929 states and 221167 transitions. Second operand 11 states. [2020-10-15 18:50:34,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:50:34,006 INFO L93 Difference]: Finished difference Result 136136 states and 631023 transitions. [2020-10-15 18:50:34,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:50:34,007 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 18:50:34,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:50:34,392 INFO L225 Difference]: With dead ends: 136136 [2020-10-15 18:50:34,392 INFO L226 Difference]: Without dead ends: 136077 [2020-10-15 18:50:34,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 18:50:36,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136077 states. [2020-10-15 18:50:37,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136077 to 41353. [2020-10-15 18:50:37,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41353 states. [2020-10-15 18:50:37,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41353 states to 41353 states and 218039 transitions. [2020-10-15 18:50:37,750 INFO L78 Accepts]: Start accepts. Automaton has 41353 states and 218039 transitions. Word has length 29 [2020-10-15 18:50:37,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:50:37,750 INFO L481 AbstractCegarLoop]: Abstraction has 41353 states and 218039 transitions. [2020-10-15 18:50:37,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 18:50:37,750 INFO L276 IsEmpty]: Start isEmpty. Operand 41353 states and 218039 transitions. [2020-10-15 18:50:37,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:50:37,762 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:50:37,762 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:50:37,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable166 [2020-10-15 18:50:37,976 INFO L429 AbstractCegarLoop]: === Iteration 93 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:50:37,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:50:37,977 INFO L82 PathProgramCache]: Analyzing trace with hash -527473920, now seen corresponding path program 5 times [2020-10-15 18:50:37,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:50:37,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698917186] [2020-10-15 18:50:37,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:50:37,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:50:38,026 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 18:50:38,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698917186] [2020-10-15 18:50:38,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:50:38,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:50:38,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138448225] [2020-10-15 18:50:38,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:50:38,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:50:38,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:50:38,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:50:38,028 INFO L87 Difference]: Start difference. First operand 41353 states and 218039 transitions. Second operand 9 states. [2020-10-15 18:50:39,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:50:39,344 INFO L93 Difference]: Finished difference Result 135187 states and 625168 transitions. [2020-10-15 18:50:39,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:50:39,344 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 18:50:39,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:50:39,727 INFO L225 Difference]: With dead ends: 135187 [2020-10-15 18:50:39,727 INFO L226 Difference]: Without dead ends: 135143 [2020-10-15 18:50:39,727 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:50:40,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135143 states. [2020-10-15 18:50:42,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135143 to 40915. [2020-10-15 18:50:42,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40915 states. [2020-10-15 18:50:42,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40915 states to 40915 states and 215544 transitions. [2020-10-15 18:50:42,536 INFO L78 Accepts]: Start accepts. Automaton has 40915 states and 215544 transitions. Word has length 29 [2020-10-15 18:50:42,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:50:42,536 INFO L481 AbstractCegarLoop]: Abstraction has 40915 states and 215544 transitions. [2020-10-15 18:50:42,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:50:42,537 INFO L276 IsEmpty]: Start isEmpty. Operand 40915 states and 215544 transitions. [2020-10-15 18:50:42,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:50:42,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:50:42,545 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:50:42,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2020-10-15 18:50:42,545 INFO L429 AbstractCegarLoop]: === Iteration 94 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:50:42,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:50:42,545 INFO L82 PathProgramCache]: Analyzing trace with hash -527489389, now seen corresponding path program 5 times [2020-10-15 18:50:42,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:50:42,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936452308] [2020-10-15 18:50:42,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:50:42,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:50:42,593 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 18:50:42,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936452308] [2020-10-15 18:50:42,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:50:42,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:50:42,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153214792] [2020-10-15 18:50:42,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:50:42,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:50:42,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:50:42,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:50:42,595 INFO L87 Difference]: Start difference. First operand 40915 states and 215544 transitions. Second operand 9 states. [2020-10-15 18:50:44,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:50:44,480 INFO L93 Difference]: Finished difference Result 133251 states and 615922 transitions. [2020-10-15 18:50:44,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:50:44,480 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 18:50:44,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:50:44,890 INFO L225 Difference]: With dead ends: 133251 [2020-10-15 18:50:44,890 INFO L226 Difference]: Without dead ends: 133207 [2020-10-15 18:50:44,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:50:46,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133207 states. [2020-10-15 18:50:47,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133207 to 40430. [2020-10-15 18:50:47,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40430 states. [2020-10-15 18:50:47,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40430 states to 40430 states and 212865 transitions. [2020-10-15 18:50:47,931 INFO L78 Accepts]: Start accepts. Automaton has 40430 states and 212865 transitions. Word has length 29 [2020-10-15 18:50:47,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:50:47,931 INFO L481 AbstractCegarLoop]: Abstraction has 40430 states and 212865 transitions. [2020-10-15 18:50:47,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:50:47,931 INFO L276 IsEmpty]: Start isEmpty. Operand 40430 states and 212865 transitions. [2020-10-15 18:50:47,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:50:47,941 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:50:47,941 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:50:47,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2020-10-15 18:50:47,941 INFO L429 AbstractCegarLoop]: === Iteration 95 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:50:47,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:50:47,941 INFO L82 PathProgramCache]: Analyzing trace with hash -527451848, now seen corresponding path program 3 times [2020-10-15 18:50:47,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:50:47,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75369282] [2020-10-15 18:50:47,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:50:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:50:47,992 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 18:50:47,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75369282] [2020-10-15 18:50:47,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:50:47,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:50:47,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372074156] [2020-10-15 18:50:47,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:50:47,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:50:47,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:50:47,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:50:47,994 INFO L87 Difference]: Start difference. First operand 40430 states and 212865 transitions. Second operand 9 states. [2020-10-15 18:50:49,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:50:49,375 INFO L93 Difference]: Finished difference Result 132509 states and 612908 transitions. [2020-10-15 18:50:49,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:50:49,376 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 18:50:49,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:50:49,773 INFO L225 Difference]: With dead ends: 132509 [2020-10-15 18:50:49,773 INFO L226 Difference]: Without dead ends: 132465 [2020-10-15 18:50:49,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:50:51,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132465 states. [2020-10-15 18:50:52,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132465 to 39940. [2020-10-15 18:50:52,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39940 states. [2020-10-15 18:50:52,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39940 states to 39940 states and 210218 transitions. [2020-10-15 18:50:52,895 INFO L78 Accepts]: Start accepts. Automaton has 39940 states and 210218 transitions. Word has length 29 [2020-10-15 18:50:52,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:50:52,896 INFO L481 AbstractCegarLoop]: Abstraction has 39940 states and 210218 transitions. [2020-10-15 18:50:52,896 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:50:52,896 INFO L276 IsEmpty]: Start isEmpty. Operand 39940 states and 210218 transitions. [2020-10-15 18:50:52,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:50:52,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:50:52,905 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:50:52,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2020-10-15 18:50:52,905 INFO L429 AbstractCegarLoop]: === Iteration 96 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:50:52,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:50:52,905 INFO L82 PathProgramCache]: Analyzing trace with hash -526134720, now seen corresponding path program 6 times [2020-10-15 18:50:52,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:50:52,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050532080] [2020-10-15 18:50:52,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:50:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:50:52,958 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 18:50:52,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050532080] [2020-10-15 18:50:52,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:50:52,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:50:52,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53121755] [2020-10-15 18:50:52,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:50:52,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:50:52,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:50:52,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:50:52,959 INFO L87 Difference]: Start difference. First operand 39940 states and 210218 transitions. Second operand 9 states. [2020-10-15 18:50:54,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:50:54,565 INFO L93 Difference]: Finished difference Result 130945 states and 603941 transitions. [2020-10-15 18:50:54,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:50:54,565 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 18:50:54,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:50:54,924 INFO L225 Difference]: With dead ends: 130945 [2020-10-15 18:50:54,924 INFO L226 Difference]: Without dead ends: 130886 [2020-10-15 18:50:54,924 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:50:56,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130886 states. [2020-10-15 18:50:57,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130886 to 39086. [2020-10-15 18:50:57,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39086 states. [2020-10-15 18:50:57,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39086 states to 39086 states and 205652 transitions. [2020-10-15 18:50:57,706 INFO L78 Accepts]: Start accepts. Automaton has 39086 states and 205652 transitions. Word has length 29 [2020-10-15 18:50:57,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:50:57,706 INFO L481 AbstractCegarLoop]: Abstraction has 39086 states and 205652 transitions. [2020-10-15 18:50:57,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:50:57,707 INFO L276 IsEmpty]: Start isEmpty. Operand 39086 states and 205652 transitions. [2020-10-15 18:50:57,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:50:57,714 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:50:57,715 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:50:57,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2020-10-15 18:50:57,715 INFO L429 AbstractCegarLoop]: === Iteration 97 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:50:57,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:50:57,715 INFO L82 PathProgramCache]: Analyzing trace with hash -526148794, now seen corresponding path program 5 times [2020-10-15 18:50:57,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:50:57,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021943580] [2020-10-15 18:50:57,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:50:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:50:57,774 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 18:50:57,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021943580] [2020-10-15 18:50:57,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:50:57,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:50:57,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136468573] [2020-10-15 18:50:57,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:50:57,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:50:57,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:50:57,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:50:57,776 INFO L87 Difference]: Start difference. First operand 39086 states and 205652 transitions. Second operand 9 states. [2020-10-15 18:50:59,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:50:59,051 INFO L93 Difference]: Finished difference Result 130414 states and 601082 transitions. [2020-10-15 18:50:59,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:50:59,051 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 18:50:59,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:50:59,420 INFO L225 Difference]: With dead ends: 130414 [2020-10-15 18:50:59,420 INFO L226 Difference]: Without dead ends: 130370 [2020-10-15 18:50:59,420 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:51:00,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130370 states. [2020-10-15 18:51:02,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130370 to 38758. [2020-10-15 18:51:02,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38758 states. [2020-10-15 18:51:03,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38758 states to 38758 states and 203866 transitions. [2020-10-15 18:51:03,205 INFO L78 Accepts]: Start accepts. Automaton has 38758 states and 203866 transitions. Word has length 29 [2020-10-15 18:51:03,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:51:03,205 INFO L481 AbstractCegarLoop]: Abstraction has 38758 states and 203866 transitions. [2020-10-15 18:51:03,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:51:03,206 INFO L276 IsEmpty]: Start isEmpty. Operand 38758 states and 203866 transitions. [2020-10-15 18:51:03,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:51:03,214 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:51:03,214 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:51:03,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2020-10-15 18:51:03,214 INFO L429 AbstractCegarLoop]: === Iteration 98 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:51:03,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:51:03,214 INFO L82 PathProgramCache]: Analyzing trace with hash -526111253, now seen corresponding path program 3 times [2020-10-15 18:51:03,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:51:03,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272439867] [2020-10-15 18:51:03,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:51:03,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:51:03,266 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 18:51:03,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272439867] [2020-10-15 18:51:03,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:51:03,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:51:03,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585975047] [2020-10-15 18:51:03,267 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:51:03,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:51:03,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:51:03,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:51:03,268 INFO L87 Difference]: Start difference. First operand 38758 states and 203866 transitions. Second operand 9 states. [2020-10-15 18:51:04,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:51:04,538 INFO L93 Difference]: Finished difference Result 129953 states and 599494 transitions. [2020-10-15 18:51:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:51:04,539 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 18:51:04,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:51:04,912 INFO L225 Difference]: With dead ends: 129953 [2020-10-15 18:51:04,912 INFO L226 Difference]: Without dead ends: 129909 [2020-10-15 18:51:04,912 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:51:06,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129909 states. [2020-10-15 18:51:07,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129909 to 38350. [2020-10-15 18:51:07,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38350 states. [2020-10-15 18:51:07,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38350 states to 38350 states and 201720 transitions. [2020-10-15 18:51:07,571 INFO L78 Accepts]: Start accepts. Automaton has 38350 states and 201720 transitions. Word has length 29 [2020-10-15 18:51:07,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:51:07,572 INFO L481 AbstractCegarLoop]: Abstraction has 38350 states and 201720 transitions. [2020-10-15 18:51:07,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:51:07,572 INFO L276 IsEmpty]: Start isEmpty. Operand 38350 states and 201720 transitions. [2020-10-15 18:51:07,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:51:07,580 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:51:07,580 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:51:07,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2020-10-15 18:51:07,580 INFO L429 AbstractCegarLoop]: === Iteration 99 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:51:07,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:51:07,581 INFO L82 PathProgramCache]: Analyzing trace with hash -541000429, now seen corresponding path program 6 times [2020-10-15 18:51:07,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:51:07,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306620693] [2020-10-15 18:51:07,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:51:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:51:07,631 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 18:51:07,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306620693] [2020-10-15 18:51:07,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:51:07,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:51:07,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631800358] [2020-10-15 18:51:07,633 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:51:07,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:51:07,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:51:07,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:51:07,633 INFO L87 Difference]: Start difference. First operand 38350 states and 201720 transitions. Second operand 9 states. [2020-10-15 18:51:08,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:51:08,895 INFO L93 Difference]: Finished difference Result 128408 states and 591144 transitions. [2020-10-15 18:51:08,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:51:08,896 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 18:51:08,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:51:09,283 INFO L225 Difference]: With dead ends: 128408 [2020-10-15 18:51:09,283 INFO L226 Difference]: Without dead ends: 128349 [2020-10-15 18:51:09,283 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:51:10,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128349 states. [2020-10-15 18:51:12,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128349 to 37756. [2020-10-15 18:51:12,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37756 states. [2020-10-15 18:51:12,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37756 states to 37756 states and 198597 transitions. [2020-10-15 18:51:12,797 INFO L78 Accepts]: Start accepts. Automaton has 37756 states and 198597 transitions. Word has length 29 [2020-10-15 18:51:12,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:51:12,798 INFO L481 AbstractCegarLoop]: Abstraction has 37756 states and 198597 transitions. [2020-10-15 18:51:12,798 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:51:12,798 INFO L276 IsEmpty]: Start isEmpty. Operand 37756 states and 198597 transitions. [2020-10-15 18:51:12,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:51:12,806 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:51:12,806 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:51:12,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2020-10-15 18:51:12,806 INFO L429 AbstractCegarLoop]: === Iteration 100 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:51:12,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:51:12,807 INFO L82 PathProgramCache]: Analyzing trace with hash -540999034, now seen corresponding path program 6 times [2020-10-15 18:51:12,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:51:12,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220904640] [2020-10-15 18:51:12,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:51:12,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:51:12,859 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 18:51:12,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220904640] [2020-10-15 18:51:12,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:51:12,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:51:12,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725329732] [2020-10-15 18:51:12,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:51:12,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:51:12,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:51:12,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:51:12,861 INFO L87 Difference]: Start difference. First operand 37756 states and 198597 transitions. Second operand 9 states. [2020-10-15 18:51:14,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:51:14,284 INFO L93 Difference]: Finished difference Result 127321 states and 585958 transitions. [2020-10-15 18:51:14,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:51:14,284 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 18:51:14,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:51:14,691 INFO L225 Difference]: With dead ends: 127321 [2020-10-15 18:51:14,691 INFO L226 Difference]: Without dead ends: 127262 [2020-10-15 18:51:14,691 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:51:15,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127262 states. [2020-10-15 18:51:17,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127262 to 36966. [2020-10-15 18:51:17,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36966 states. [2020-10-15 18:51:17,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36966 states to 36966 states and 194506 transitions. [2020-10-15 18:51:17,439 INFO L78 Accepts]: Start accepts. Automaton has 36966 states and 194506 transitions. Word has length 29 [2020-10-15 18:51:17,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:51:17,439 INFO L481 AbstractCegarLoop]: Abstraction has 36966 states and 194506 transitions. [2020-10-15 18:51:17,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:51:17,439 INFO L276 IsEmpty]: Start isEmpty. Operand 36966 states and 194506 transitions. [2020-10-15 18:51:17,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:51:17,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:51:17,447 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:51:17,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2020-10-15 18:51:17,447 INFO L429 AbstractCegarLoop]: === Iteration 101 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:51:17,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:51:17,448 INFO L82 PathProgramCache]: Analyzing trace with hash -540976962, now seen corresponding path program 3 times [2020-10-15 18:51:17,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:51:17,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874605916] [2020-10-15 18:51:17,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:51:17,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:51:17,498 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 18:51:17,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874605916] [2020-10-15 18:51:17,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:51:17,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:51:17,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687027321] [2020-10-15 18:51:17,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:51:17,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:51:17,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:51:17,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:51:17,500 INFO L87 Difference]: Start difference. First operand 36966 states and 194506 transitions. Second operand 9 states. [2020-10-15 18:51:18,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:51:18,807 INFO L93 Difference]: Finished difference Result 127898 states and 589602 transitions. [2020-10-15 18:51:18,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:51:18,808 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 18:51:18,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:51:19,181 INFO L225 Difference]: With dead ends: 127898 [2020-10-15 18:51:19,181 INFO L226 Difference]: Without dead ends: 127854 [2020-10-15 18:51:19,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:51:20,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127854 states. [2020-10-15 18:51:22,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127854 to 36674. [2020-10-15 18:51:22,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36674 states. [2020-10-15 18:51:22,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36674 states to 36674 states and 193006 transitions. [2020-10-15 18:51:22,700 INFO L78 Accepts]: Start accepts. Automaton has 36674 states and 193006 transitions. Word has length 29 [2020-10-15 18:51:22,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:51:22,700 INFO L481 AbstractCegarLoop]: Abstraction has 36674 states and 193006 transitions. [2020-10-15 18:51:22,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:51:22,700 INFO L276 IsEmpty]: Start isEmpty. Operand 36674 states and 193006 transitions. [2020-10-15 18:51:22,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:51:22,708 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:51:22,709 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:51:22,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2020-10-15 18:51:22,709 INFO L429 AbstractCegarLoop]: === Iteration 102 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:51:22,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:51:22,709 INFO L82 PathProgramCache]: Analyzing trace with hash -504923528, now seen corresponding path program 4 times [2020-10-15 18:51:22,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:51:22,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974015497] [2020-10-15 18:51:22,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:51:22,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:51:22,760 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 18:51:22,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974015497] [2020-10-15 18:51:22,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:51:22,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:51:22,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720116237] [2020-10-15 18:51:22,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:51:22,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:51:22,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:51:22,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:51:22,762 INFO L87 Difference]: Start difference. First operand 36674 states and 193006 transitions. Second operand 9 states. [2020-10-15 18:51:24,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:51:24,016 INFO L93 Difference]: Finished difference Result 128860 states and 594173 transitions. [2020-10-15 18:51:24,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:51:24,016 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 18:51:24,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:51:24,380 INFO L225 Difference]: With dead ends: 128860 [2020-10-15 18:51:24,380 INFO L226 Difference]: Without dead ends: 128801 [2020-10-15 18:51:24,381 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:51:25,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128801 states. [2020-10-15 18:51:26,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128801 to 36922. [2020-10-15 18:51:26,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36922 states. [2020-10-15 18:51:27,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36922 states to 36922 states and 194255 transitions. [2020-10-15 18:51:27,044 INFO L78 Accepts]: Start accepts. Automaton has 36922 states and 194255 transitions. Word has length 29 [2020-10-15 18:51:27,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:51:27,044 INFO L481 AbstractCegarLoop]: Abstraction has 36922 states and 194255 transitions. [2020-10-15 18:51:27,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:51:27,044 INFO L276 IsEmpty]: Start isEmpty. Operand 36922 states and 194255 transitions. [2020-10-15 18:51:27,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:51:27,051 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:51:27,052 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:51:27,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2020-10-15 18:51:27,052 INFO L429 AbstractCegarLoop]: === Iteration 103 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:51:27,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:51:27,052 INFO L82 PathProgramCache]: Analyzing trace with hash -504922133, now seen corresponding path program 4 times [2020-10-15 18:51:27,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:51:27,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275609326] [2020-10-15 18:51:27,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:51:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:51:27,099 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 18:51:27,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275609326] [2020-10-15 18:51:27,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:51:27,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:51:27,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663278682] [2020-10-15 18:51:27,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:51:27,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:51:27,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:51:27,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:51:27,101 INFO L87 Difference]: Start difference. First operand 36922 states and 194255 transitions. Second operand 9 states. [2020-10-15 18:51:28,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:51:28,444 INFO L93 Difference]: Finished difference Result 127746 states and 588973 transitions. [2020-10-15 18:51:28,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:51:28,444 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 18:51:28,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:51:28,816 INFO L225 Difference]: With dead ends: 127746 [2020-10-15 18:51:28,816 INFO L226 Difference]: Without dead ends: 127687 [2020-10-15 18:51:28,816 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:51:29,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127687 states. [2020-10-15 18:51:31,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127687 to 36885. [2020-10-15 18:51:31,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36885 states. [2020-10-15 18:51:32,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36885 states to 36885 states and 194028 transitions. [2020-10-15 18:51:32,093 INFO L78 Accepts]: Start accepts. Automaton has 36885 states and 194028 transitions. Word has length 29 [2020-10-15 18:51:32,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:51:32,093 INFO L481 AbstractCegarLoop]: Abstraction has 36885 states and 194028 transitions. [2020-10-15 18:51:32,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:51:32,093 INFO L276 IsEmpty]: Start isEmpty. Operand 36885 states and 194028 transitions. [2020-10-15 18:51:32,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:51:32,101 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:51:32,101 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:51:32,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2020-10-15 18:51:32,102 INFO L429 AbstractCegarLoop]: === Iteration 104 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:51:32,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:51:32,102 INFO L82 PathProgramCache]: Analyzing trace with hash -504937602, now seen corresponding path program 4 times [2020-10-15 18:51:32,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:51:32,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793129447] [2020-10-15 18:51:32,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:51:32,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:51:32,155 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 18:51:32,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793129447] [2020-10-15 18:51:32,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:51:32,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:51:32,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590850194] [2020-10-15 18:51:32,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:51:32,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:51:32,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:51:32,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:51:32,157 INFO L87 Difference]: Start difference. First operand 36885 states and 194028 transitions. Second operand 9 states. [2020-10-15 18:51:33,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:51:33,543 INFO L93 Difference]: Finished difference Result 126643 states and 584111 transitions. [2020-10-15 18:51:33,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:51:33,544 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 18:51:33,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:51:33,914 INFO L225 Difference]: With dead ends: 126643 [2020-10-15 18:51:33,914 INFO L226 Difference]: Without dead ends: 126584 [2020-10-15 18:51:33,914 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:51:35,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126584 states. [2020-10-15 18:51:36,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126584 to 36688. [2020-10-15 18:51:36,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36688 states. [2020-10-15 18:51:36,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36688 states to 36688 states and 192991 transitions. [2020-10-15 18:51:36,529 INFO L78 Accepts]: Start accepts. Automaton has 36688 states and 192991 transitions. Word has length 29 [2020-10-15 18:51:36,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:51:36,529 INFO L481 AbstractCegarLoop]: Abstraction has 36688 states and 192991 transitions. [2020-10-15 18:51:36,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:51:36,529 INFO L276 IsEmpty]: Start isEmpty. Operand 36688 states and 192991 transitions. [2020-10-15 18:51:36,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:51:36,537 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:51:36,537 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:51:36,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2020-10-15 18:51:36,537 INFO L429 AbstractCegarLoop]: === Iteration 105 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:51:36,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:51:36,537 INFO L82 PathProgramCache]: Analyzing trace with hash -413562361, now seen corresponding path program 1 times [2020-10-15 18:51:36,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:51:36,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478453055] [2020-10-15 18:51:36,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:51:36,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:51:36,562 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-10-15 18:51:36,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478453055] [2020-10-15 18:51:36,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:51:36,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:51:36,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345940537] [2020-10-15 18:51:36,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:51:36,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:51:36,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:51:36,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:51:36,564 INFO L87 Difference]: Start difference. First operand 36688 states and 192991 transitions. Second operand 5 states. [2020-10-15 18:51:36,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:51:36,954 INFO L93 Difference]: Finished difference Result 61979 states and 317658 transitions. [2020-10-15 18:51:36,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:51:36,955 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-10-15 18:51:36,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:51:37,133 INFO L225 Difference]: With dead ends: 61979 [2020-10-15 18:51:37,134 INFO L226 Difference]: Without dead ends: 61915 [2020-10-15 18:51:37,134 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:51:37,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61915 states. [2020-10-15 18:51:38,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61915 to 45529. [2020-10-15 18:51:38,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45529 states. [2020-10-15 18:51:38,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45529 states to 45529 states and 238865 transitions. [2020-10-15 18:51:38,939 INFO L78 Accepts]: Start accepts. Automaton has 45529 states and 238865 transitions. Word has length 29 [2020-10-15 18:51:38,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:51:38,939 INFO L481 AbstractCegarLoop]: Abstraction has 45529 states and 238865 transitions. [2020-10-15 18:51:38,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:51:38,939 INFO L276 IsEmpty]: Start isEmpty. Operand 45529 states and 238865 transitions. [2020-10-15 18:51:38,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:51:38,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:51:38,947 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:51:38,947 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2020-10-15 18:51:38,947 INFO L429 AbstractCegarLoop]: === Iteration 106 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:51:38,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:51:38,947 INFO L82 PathProgramCache]: Analyzing trace with hash 613734392, now seen corresponding path program 5 times [2020-10-15 18:51:38,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:51:38,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149471031] [2020-10-15 18:51:38,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:51:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:51:39,004 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 18:51:39,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149471031] [2020-10-15 18:51:39,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:51:39,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:51:39,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434285358] [2020-10-15 18:51:39,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:51:39,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:51:39,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:51:39,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:51:39,006 INFO L87 Difference]: Start difference. First operand 45529 states and 238865 transitions. Second operand 9 states. [2020-10-15 18:51:39,706 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-10-15 18:51:40,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:51:40,672 INFO L93 Difference]: Finished difference Result 150731 states and 702613 transitions. [2020-10-15 18:51:40,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:51:40,672 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 18:51:40,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:51:41,136 INFO L225 Difference]: With dead ends: 150731 [2020-10-15 18:51:41,136 INFO L226 Difference]: Without dead ends: 150675 [2020-10-15 18:51:41,136 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:51:42,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150675 states. [2020-10-15 18:51:44,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150675 to 46190. [2020-10-15 18:51:44,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46190 states. [2020-10-15 18:51:44,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46190 states to 46190 states and 242332 transitions. [2020-10-15 18:51:44,448 INFO L78 Accepts]: Start accepts. Automaton has 46190 states and 242332 transitions. Word has length 29 [2020-10-15 18:51:44,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:51:44,448 INFO L481 AbstractCegarLoop]: Abstraction has 46190 states and 242332 transitions. [2020-10-15 18:51:44,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:51:44,449 INFO L276 IsEmpty]: Start isEmpty. Operand 46190 states and 242332 transitions. [2020-10-15 18:51:44,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:51:44,457 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:51:44,457 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:51:44,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2020-10-15 18:51:44,458 INFO L429 AbstractCegarLoop]: === Iteration 107 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:51:44,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:51:44,458 INFO L82 PathProgramCache]: Analyzing trace with hash 613735787, now seen corresponding path program 5 times [2020-10-15 18:51:44,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:51:44,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838392738] [2020-10-15 18:51:44,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:51:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:51:44,509 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 18:51:44,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838392738] [2020-10-15 18:51:44,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:51:44,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:51:44,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991610730] [2020-10-15 18:51:44,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:51:44,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:51:44,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:51:44,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:51:44,510 INFO L87 Difference]: Start difference. First operand 46190 states and 242332 transitions. Second operand 9 states. [2020-10-15 18:51:45,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:51:45,896 INFO L93 Difference]: Finished difference Result 149511 states and 696801 transitions. [2020-10-15 18:51:45,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:51:45,897 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 18:51:45,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:51:46,339 INFO L225 Difference]: With dead ends: 149511 [2020-10-15 18:51:46,339 INFO L226 Difference]: Without dead ends: 149455 [2020-10-15 18:51:46,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:51:47,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149455 states. [2020-10-15 18:51:50,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149455 to 46554. [2020-10-15 18:51:50,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46554 states. [2020-10-15 18:51:50,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46554 states to 46554 states and 244235 transitions. [2020-10-15 18:51:50,375 INFO L78 Accepts]: Start accepts. Automaton has 46554 states and 244235 transitions. Word has length 29 [2020-10-15 18:51:50,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:51:50,376 INFO L481 AbstractCegarLoop]: Abstraction has 46554 states and 244235 transitions. [2020-10-15 18:51:50,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:51:50,376 INFO L276 IsEmpty]: Start isEmpty. Operand 46554 states and 244235 transitions. [2020-10-15 18:51:50,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:51:50,384 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:51:50,384 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:51:50,384 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2020-10-15 18:51:50,384 INFO L429 AbstractCegarLoop]: === Iteration 108 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:51:50,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:51:50,385 INFO L82 PathProgramCache]: Analyzing trace with hash 613720318, now seen corresponding path program 5 times [2020-10-15 18:51:50,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:51:50,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089589850] [2020-10-15 18:51:50,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:51:50,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:51:50,436 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 18:51:50,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089589850] [2020-10-15 18:51:50,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:51:50,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:51:50,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788295217] [2020-10-15 18:51:50,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:51:50,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:51:50,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:51:50,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:51:50,438 INFO L87 Difference]: Start difference. First operand 46554 states and 244235 transitions. Second operand 9 states. [2020-10-15 18:51:51,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:51:51,833 INFO L93 Difference]: Finished difference Result 148338 states and 691501 transitions. [2020-10-15 18:51:51,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:51:51,833 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 18:51:51,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:51:52,285 INFO L225 Difference]: With dead ends: 148338 [2020-10-15 18:51:52,285 INFO L226 Difference]: Without dead ends: 148282 [2020-10-15 18:51:52,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:51:53,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148282 states. [2020-10-15 18:51:55,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148282 to 46429. [2020-10-15 18:51:55,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46429 states. [2020-10-15 18:51:55,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46429 states to 46429 states and 243498 transitions. [2020-10-15 18:51:55,515 INFO L78 Accepts]: Start accepts. Automaton has 46429 states and 243498 transitions. Word has length 29 [2020-10-15 18:51:55,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:51:55,515 INFO L481 AbstractCegarLoop]: Abstraction has 46429 states and 243498 transitions. [2020-10-15 18:51:55,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:51:55,515 INFO L276 IsEmpty]: Start isEmpty. Operand 46429 states and 243498 transitions. [2020-10-15 18:51:55,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:51:55,524 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:51:55,524 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:51:55,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2020-10-15 18:51:55,524 INFO L429 AbstractCegarLoop]: === Iteration 109 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:51:55,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:51:55,524 INFO L82 PathProgramCache]: Analyzing trace with hash 614716472, now seen corresponding path program 6 times [2020-10-15 18:51:55,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:51:55,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790108773] [2020-10-15 18:51:55,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:51:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:51:55,574 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 18:51:55,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790108773] [2020-10-15 18:51:55,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:51:55,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:51:55,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029765829] [2020-10-15 18:51:55,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:51:55,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:51:55,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:51:55,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:51:55,576 INFO L87 Difference]: Start difference. First operand 46429 states and 243498 transitions. Second operand 9 states. [2020-10-15 18:51:56,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:51:56,988 INFO L93 Difference]: Finished difference Result 148415 states and 691326 transitions. [2020-10-15 18:51:56,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:51:56,988 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 18:51:56,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:51:57,468 INFO L225 Difference]: With dead ends: 148415 [2020-10-15 18:51:57,468 INFO L226 Difference]: Without dead ends: 148344 [2020-10-15 18:51:57,469 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:51:59,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148344 states. [2020-10-15 18:52:01,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148344 to 45169. [2020-10-15 18:52:01,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45169 states. [2020-10-15 18:52:01,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45169 states to 45169 states and 236894 transitions. [2020-10-15 18:52:01,456 INFO L78 Accepts]: Start accepts. Automaton has 45169 states and 236894 transitions. Word has length 29 [2020-10-15 18:52:01,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:52:01,456 INFO L481 AbstractCegarLoop]: Abstraction has 45169 states and 236894 transitions. [2020-10-15 18:52:01,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:52:01,456 INFO L276 IsEmpty]: Start isEmpty. Operand 45169 states and 236894 transitions. [2020-10-15 18:52:01,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:52:01,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:52:01,464 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:52:01,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2020-10-15 18:52:01,464 INFO L429 AbstractCegarLoop]: === Iteration 110 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:52:01,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:52:01,465 INFO L82 PathProgramCache]: Analyzing trace with hash 616057067, now seen corresponding path program 6 times [2020-10-15 18:52:01,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:52:01,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187267169] [2020-10-15 18:52:01,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:52:01,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:52:01,519 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 18:52:01,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187267169] [2020-10-15 18:52:01,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:52:01,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:52:01,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528852910] [2020-10-15 18:52:01,521 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:52:01,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:52:01,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:52:01,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:52:01,521 INFO L87 Difference]: Start difference. First operand 45169 states and 236894 transitions. Second operand 9 states. [2020-10-15 18:52:03,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:52:03,047 INFO L93 Difference]: Finished difference Result 147425 states and 686023 transitions. [2020-10-15 18:52:03,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:52:03,047 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 18:52:03,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:52:03,545 INFO L225 Difference]: With dead ends: 147425 [2020-10-15 18:52:03,545 INFO L226 Difference]: Without dead ends: 147354 [2020-10-15 18:52:03,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:52:05,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147354 states. [2020-10-15 18:52:06,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147354 to 43980. [2020-10-15 18:52:06,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43980 states. [2020-10-15 18:52:06,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43980 states to 43980 states and 230752 transitions. [2020-10-15 18:52:06,983 INFO L78 Accepts]: Start accepts. Automaton has 43980 states and 230752 transitions. Word has length 29 [2020-10-15 18:52:06,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:52:06,983 INFO L481 AbstractCegarLoop]: Abstraction has 43980 states and 230752 transitions. [2020-10-15 18:52:06,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:52:06,984 INFO L276 IsEmpty]: Start isEmpty. Operand 43980 states and 230752 transitions. [2020-10-15 18:52:06,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 18:52:06,991 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:52:06,992 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:52:06,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2020-10-15 18:52:06,992 INFO L429 AbstractCegarLoop]: === Iteration 111 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:52:06,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:52:06,992 INFO L82 PathProgramCache]: Analyzing trace with hash 601191358, now seen corresponding path program 6 times [2020-10-15 18:52:06,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:52:06,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067120184] [2020-10-15 18:52:06,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:52:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:52:07,041 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 18:52:07,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067120184] [2020-10-15 18:52:07,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:52:07,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:52:07,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902713247] [2020-10-15 18:52:07,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:52:07,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:52:07,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:52:07,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:52:07,042 INFO L87 Difference]: Start difference. First operand 43980 states and 230752 transitions. Second operand 9 states. [2020-10-15 18:52:08,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:52:08,891 INFO L93 Difference]: Finished difference Result 146606 states and 682087 transitions. [2020-10-15 18:52:08,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 18:52:08,891 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 18:52:08,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:52:09,321 INFO L225 Difference]: With dead ends: 146606 [2020-10-15 18:52:09,321 INFO L226 Difference]: Without dead ends: 146535 [2020-10-15 18:52:09,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 18:52:10,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146535 states. [2020-10-15 18:52:12,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146535 to 42813. [2020-10-15 18:52:12,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42813 states. [2020-10-15 18:52:12,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42813 states to 42813 states and 224792 transitions. [2020-10-15 18:52:12,490 INFO L78 Accepts]: Start accepts. Automaton has 42813 states and 224792 transitions. Word has length 29 [2020-10-15 18:52:12,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:52:12,490 INFO L481 AbstractCegarLoop]: Abstraction has 42813 states and 224792 transitions. [2020-10-15 18:52:12,490 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:52:12,490 INFO L276 IsEmpty]: Start isEmpty. Operand 42813 states and 224792 transitions. [2020-10-15 18:52:12,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-15 18:52:12,500 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:52:12,500 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:52:12,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2020-10-15 18:52:12,500 INFO L429 AbstractCegarLoop]: === Iteration 112 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:52:12,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:52:12,500 INFO L82 PathProgramCache]: Analyzing trace with hash 58023263, now seen corresponding path program 1 times [2020-10-15 18:52:12,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:52:12,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557781817] [2020-10-15 18:52:12,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:52:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 18:52:12,506 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 18:52:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 18:52:12,511 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 18:52:12,519 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 18:52:12,519 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 18:52:12,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2020-10-15 18:52:12,520 WARN L371 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 18:52:12,520 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2020-10-15 18:52:12,536 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,536 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,536 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,536 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,536 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,537 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,537 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,537 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,537 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,537 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,537 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,537 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,538 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,538 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,538 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,538 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,538 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,538 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,538 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,539 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,539 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,539 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,539 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,539 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,539 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,539 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,539 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,539 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,540 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,540 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,540 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,540 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,540 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,540 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,541 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,541 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,541 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,541 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,541 WARN L313 ript$VariableManager]: TermVariabe thr2Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,541 WARN L313 ript$VariableManager]: TermVariabe thr2Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,541 WARN L313 ript$VariableManager]: TermVariabe thr2Thread7of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,541 WARN L313 ript$VariableManager]: TermVariabe thr2Thread7of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,541 WARN L313 ript$VariableManager]: TermVariabe thr2Thread7of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,542 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,542 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,542 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,542 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,542 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,542 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,542 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,542 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,543 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,543 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,543 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,543 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,543 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,543 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,543 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,544 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,544 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,544 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,544 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,544 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,545 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,545 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,545 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,545 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,545 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,545 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,545 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,545 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,546 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,546 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,546 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,547 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,547 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,547 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,548 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,548 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,548 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,548 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,548 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,550 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,550 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,550 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,550 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,551 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,551 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,551 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,551 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,552 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,552 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,552 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,552 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,552 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,552 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,553 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,553 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,553 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,553 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,553 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,553 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,553 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,553 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,553 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,554 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,554 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,554 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,554 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,554 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,554 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,554 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,554 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,555 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,555 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,555 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,555 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,555 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,555 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,556 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,556 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,556 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,556 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,562 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,562 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,562 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,563 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,563 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,569 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,569 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,569 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,570 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,570 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,571 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,571 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,571 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,571 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,571 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,572 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,573 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,573 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,573 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,573 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,574 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,574 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,575 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,575 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,575 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,577 WARN L313 ript$VariableManager]: TermVariabe thr2Thread7of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,578 WARN L313 ript$VariableManager]: TermVariabe thr2Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,578 WARN L313 ript$VariableManager]: TermVariabe thr2Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,578 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,578 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,581 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,582 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,582 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,582 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,582 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,582 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,585 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,586 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,586 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,586 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,586 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,586 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,587 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,587 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,588 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,588 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,588 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,588 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,589 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,589 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,589 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,589 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,590 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,590 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,591 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,591 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,591 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,591 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,592 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,592 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,593 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,593 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,593 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,593 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,593 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,594 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,595 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,595 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,595 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,595 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,595 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,595 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:52:12,596 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-10-15 18:52:12,597 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:52:12,597 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:52:12,597 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:52:12,597 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:52:12,597 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:52:12,597 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:52:12,597 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:52:12,597 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:52:12,599 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:52:12,599 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 181 places, 159 transitions, 472 flow [2020-10-15 18:52:12,599 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 181 places, 159 transitions, 472 flow [2020-10-15 18:52:12,599 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 181 places, 159 transitions, 472 flow [2020-10-15 18:52:12,618 INFO L129 PetriNetUnfolder]: 9/193 cut-off events. [2020-10-15 18:52:12,618 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2020-10-15 18:52:12,619 INFO L80 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 193 events. 9/193 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 334 event pairs, 0 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 237. Up to 16 conditions per place. [2020-10-15 18:52:12,627 INFO L117 LiptonReduction]: Number of co-enabled transitions 4448 [2020-10-15 18:52:15,257 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-15 18:52:15,358 INFO L132 LiptonReduction]: Checked pairs total: 7296 [2020-10-15 18:52:15,358 INFO L134 LiptonReduction]: Total number of compositions: 148 [2020-10-15 18:52:15,359 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 81 places, 51 transitions, 256 flow [2020-10-15 18:52:24,796 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 55763 states. [2020-10-15 18:52:24,797 INFO L276 IsEmpty]: Start isEmpty. Operand 55763 states. [2020-10-15 18:52:24,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-15 18:52:24,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:52:24,797 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-15 18:52:24,797 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:52:24,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:52:24,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1622843, now seen corresponding path program 1 times [2020-10-15 18:52:24,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:52:24,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355620668] [2020-10-15 18:52:24,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:52:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:52:24,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:52:24,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355620668] [2020-10-15 18:52:24,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:52:24,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:52:24,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43242699] [2020-10-15 18:52:24,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:52:24,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:52:24,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:52:24,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:52:24,814 INFO L87 Difference]: Start difference. First operand 55763 states. Second operand 3 states. [2020-10-15 18:52:25,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:52:25,183 INFO L93 Difference]: Finished difference Result 54360 states and 318970 transitions. [2020-10-15 18:52:25,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:52:25,183 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-15 18:52:25,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:52:25,360 INFO L225 Difference]: With dead ends: 54360 [2020-10-15 18:52:25,360 INFO L226 Difference]: Without dead ends: 51079 [2020-10-15 18:52:25,360 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:52:28,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51079 states. [2020-10-15 18:52:29,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51079 to 51079. [2020-10-15 18:52:29,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51079 states. [2020-10-15 18:52:29,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51079 states to 51079 states and 298193 transitions. [2020-10-15 18:52:29,492 INFO L78 Accepts]: Start accepts. Automaton has 51079 states and 298193 transitions. Word has length 3 [2020-10-15 18:52:29,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:52:29,492 INFO L481 AbstractCegarLoop]: Abstraction has 51079 states and 298193 transitions. [2020-10-15 18:52:29,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:52:29,492 INFO L276 IsEmpty]: Start isEmpty. Operand 51079 states and 298193 transitions. [2020-10-15 18:52:29,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 18:52:29,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:52:29,492 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:52:29,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2020-10-15 18:52:29,493 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:52:29,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:52:29,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1940021698, now seen corresponding path program 1 times [2020-10-15 18:52:29,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:52:29,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410578878] [2020-10-15 18:52:29,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:52:29,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:52:29,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:52:29,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410578878] [2020-10-15 18:52:29,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:52:29,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:52:29,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672646832] [2020-10-15 18:52:29,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:52:29,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:52:29,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:52:29,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:52:29,509 INFO L87 Difference]: Start difference. First operand 51079 states and 298193 transitions. Second operand 5 states. [2020-10-15 18:52:30,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:52:30,123 INFO L93 Difference]: Finished difference Result 96937 states and 538177 transitions. [2020-10-15 18:52:30,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:52:30,124 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-15 18:52:30,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:52:30,434 INFO L225 Difference]: With dead ends: 96937 [2020-10-15 18:52:30,435 INFO L226 Difference]: Without dead ends: 96928 [2020-10-15 18:52:30,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:52:39,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96928 states. [2020-10-15 18:52:40,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96928 to 61361. [2020-10-15 18:52:40,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61361 states. [2020-10-15 18:52:40,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61361 states to 61361 states and 361700 transitions. [2020-10-15 18:52:40,676 INFO L78 Accepts]: Start accepts. Automaton has 61361 states and 361700 transitions. Word has length 9 [2020-10-15 18:52:40,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:52:40,677 INFO L481 AbstractCegarLoop]: Abstraction has 61361 states and 361700 transitions. [2020-10-15 18:52:40,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:52:40,677 INFO L276 IsEmpty]: Start isEmpty. Operand 61361 states and 361700 transitions. [2020-10-15 18:52:40,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:52:40,677 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:52:40,677 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:52:40,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2020-10-15 18:52:40,677 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:52:40,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:52:40,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1408430290, now seen corresponding path program 1 times [2020-10-15 18:52:40,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:52:40,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828680217] [2020-10-15 18:52:40,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:52:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:52:40,695 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 18:52:40,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828680217] [2020-10-15 18:52:40,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:52:40,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:52:40,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843909422] [2020-10-15 18:52:40,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:52:40,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:52:40,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:52:40,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:52:40,696 INFO L87 Difference]: Start difference. First operand 61361 states and 361700 transitions. Second operand 5 states. [2020-10-15 18:52:41,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:52:41,467 INFO L93 Difference]: Finished difference Result 115105 states and 647870 transitions. [2020-10-15 18:52:41,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:52:41,467 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 18:52:41,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:52:41,849 INFO L225 Difference]: With dead ends: 115105 [2020-10-15 18:52:41,850 INFO L226 Difference]: Without dead ends: 115086 [2020-10-15 18:52:41,850 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:52:47,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115086 states. [2020-10-15 18:52:48,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115086 to 74729. [2020-10-15 18:52:48,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74729 states. [2020-10-15 18:52:49,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74729 states to 74729 states and 446528 transitions. [2020-10-15 18:52:49,048 INFO L78 Accepts]: Start accepts. Automaton has 74729 states and 446528 transitions. Word has length 13 [2020-10-15 18:52:49,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:52:49,048 INFO L481 AbstractCegarLoop]: Abstraction has 74729 states and 446528 transitions. [2020-10-15 18:52:49,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:52:49,049 INFO L276 IsEmpty]: Start isEmpty. Operand 74729 states and 446528 transitions. [2020-10-15 18:52:49,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:52:49,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:52:49,049 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:52:49,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2020-10-15 18:52:49,049 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:52:49,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:52:49,049 INFO L82 PathProgramCache]: Analyzing trace with hash 586807343, now seen corresponding path program 1 times [2020-10-15 18:52:49,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:52:49,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099926186] [2020-10-15 18:52:49,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:52:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:52:49,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 18:52:49,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099926186] [2020-10-15 18:52:49,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:52:49,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:52:49,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756667136] [2020-10-15 18:52:49,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:52:49,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:52:49,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:52:49,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:52:49,081 INFO L87 Difference]: Start difference. First operand 74729 states and 446528 transitions. Second operand 7 states. [2020-10-15 18:52:50,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:52:50,334 INFO L93 Difference]: Finished difference Result 183405 states and 977356 transitions. [2020-10-15 18:52:50,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:52:50,335 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-15 18:52:50,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:52:50,946 INFO L225 Difference]: With dead ends: 183405 [2020-10-15 18:52:50,946 INFO L226 Difference]: Without dead ends: 183386 [2020-10-15 18:52:50,946 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:53:02,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183386 states. [2020-10-15 18:53:04,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183386 to 74375. [2020-10-15 18:53:04,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74375 states. [2020-10-15 18:53:04,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74375 states to 74375 states and 444112 transitions. [2020-10-15 18:53:04,834 INFO L78 Accepts]: Start accepts. Automaton has 74375 states and 444112 transitions. Word has length 15 [2020-10-15 18:53:04,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:53:04,835 INFO L481 AbstractCegarLoop]: Abstraction has 74375 states and 444112 transitions. [2020-10-15 18:53:04,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:53:04,835 INFO L276 IsEmpty]: Start isEmpty. Operand 74375 states and 444112 transitions. [2020-10-15 18:53:04,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:53:04,835 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:53:04,835 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:53:04,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2020-10-15 18:53:04,835 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:53:04,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:53:04,836 INFO L82 PathProgramCache]: Analyzing trace with hash 576093743, now seen corresponding path program 2 times [2020-10-15 18:53:04,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:53:04,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241180718] [2020-10-15 18:53:04,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:53:04,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:53:04,869 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 18:53:04,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241180718] [2020-10-15 18:53:04,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:53:04,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:53:04,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898444879] [2020-10-15 18:53:04,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:53:04,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:53:04,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:53:04,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:53:04,871 INFO L87 Difference]: Start difference. First operand 74375 states and 444112 transitions. Second operand 7 states. [2020-10-15 18:53:06,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:53:06,191 INFO L93 Difference]: Finished difference Result 188187 states and 1003599 transitions. [2020-10-15 18:53:06,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:53:06,192 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-15 18:53:06,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:53:08,551 INFO L225 Difference]: With dead ends: 188187 [2020-10-15 18:53:08,551 INFO L226 Difference]: Without dead ends: 188167 [2020-10-15 18:53:08,551 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:53:13,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188167 states. [2020-10-15 18:53:22,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188167 to 73326. [2020-10-15 18:53:22,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73326 states. [2020-10-15 18:53:22,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73326 states to 73326 states and 437534 transitions. [2020-10-15 18:53:22,585 INFO L78 Accepts]: Start accepts. Automaton has 73326 states and 437534 transitions. Word has length 15 [2020-10-15 18:53:22,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:53:22,586 INFO L481 AbstractCegarLoop]: Abstraction has 73326 states and 437534 transitions. [2020-10-15 18:53:22,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:53:22,586 INFO L276 IsEmpty]: Start isEmpty. Operand 73326 states and 437534 transitions. [2020-10-15 18:53:22,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 18:53:22,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:53:22,586 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:53:22,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2020-10-15 18:53:22,586 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:53:22,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:53:22,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1852086090, now seen corresponding path program 1 times [2020-10-15 18:53:22,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:53:22,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647256583] [2020-10-15 18:53:22,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:53:22,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:53:22,613 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:53:22,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647256583] [2020-10-15 18:53:22,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:53:22,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:53:22,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105457434] [2020-10-15 18:53:22,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:53:22,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:53:22,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:53:22,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:53:22,615 INFO L87 Difference]: Start difference. First operand 73326 states and 437534 transitions. Second operand 5 states. [2020-10-15 18:53:23,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:53:23,521 INFO L93 Difference]: Finished difference Result 136306 states and 779274 transitions. [2020-10-15 18:53:23,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:53:23,522 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-15 18:53:23,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:53:23,984 INFO L225 Difference]: With dead ends: 136306 [2020-10-15 18:53:23,984 INFO L226 Difference]: Without dead ends: 136270 [2020-10-15 18:53:23,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:53:29,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136270 states. [2020-10-15 18:53:31,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136270 to 91328. [2020-10-15 18:53:31,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91328 states. [2020-10-15 18:53:32,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91328 states to 91328 states and 551878 transitions. [2020-10-15 18:53:32,115 INFO L78 Accepts]: Start accepts. Automaton has 91328 states and 551878 transitions. Word has length 17 [2020-10-15 18:53:32,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:53:32,115 INFO L481 AbstractCegarLoop]: Abstraction has 91328 states and 551878 transitions. [2020-10-15 18:53:32,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:53:32,115 INFO L276 IsEmpty]: Start isEmpty. Operand 91328 states and 551878 transitions. [2020-10-15 18:53:32,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 18:53:32,116 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:53:32,116 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:53:32,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2020-10-15 18:53:32,116 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:53:32,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:53:32,116 INFO L82 PathProgramCache]: Analyzing trace with hash 805259199, now seen corresponding path program 1 times [2020-10-15 18:53:32,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:53:32,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995169601] [2020-10-15 18:53:32,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:53:32,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:53:32,149 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 18:53:32,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995169601] [2020-10-15 18:53:32,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426001040] [2020-10-15 18:53:32,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:53:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:53:32,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 18:53:32,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 18:53:32,249 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 18:53:32,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 18:53:32,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-10-15 18:53:32,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805032841] [2020-10-15 18:53:32,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:53:32,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:53:32,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:53:32,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:53:32,250 INFO L87 Difference]: Start difference. First operand 91328 states and 551878 transitions. Second operand 7 states. [2020-10-15 18:53:40,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:53:40,177 INFO L93 Difference]: Finished difference Result 220702 states and 1196059 transitions. [2020-10-15 18:53:40,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:53:40,178 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 18:53:40,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:53:41,043 INFO L225 Difference]: With dead ends: 220702 [2020-10-15 18:53:41,043 INFO L226 Difference]: Without dead ends: 220672 [2020-10-15 18:53:41,043 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:53:46,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220672 states. [2020-10-15 18:53:50,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220672 to 92876. [2020-10-15 18:53:50,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92876 states. [2020-10-15 18:53:50,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92876 states to 92876 states and 560664 transitions. [2020-10-15 18:53:50,475 INFO L78 Accepts]: Start accepts. Automaton has 92876 states and 560664 transitions. Word has length 19 [2020-10-15 18:53:50,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:53:50,475 INFO L481 AbstractCegarLoop]: Abstraction has 92876 states and 560664 transitions. [2020-10-15 18:53:50,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:53:50,475 INFO L276 IsEmpty]: Start isEmpty. Operand 92876 states and 560664 transitions. [2020-10-15 18:53:50,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 18:53:50,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:53:50,476 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:53:50,676 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193,79 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 18:53:50,677 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:53:50,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:53:50,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1738279999, now seen corresponding path program 2 times [2020-10-15 18:53:50,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:53:50,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313059977] [2020-10-15 18:53:50,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:53:50,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:53:50,712 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:53:50,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313059977] [2020-10-15 18:53:50,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:53:50,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:53:50,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832196846] [2020-10-15 18:53:50,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:53:50,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:53:50,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:53:50,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:53:50,714 INFO L87 Difference]: Start difference. First operand 92876 states and 560664 transitions. Second operand 7 states. [2020-10-15 18:53:54,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:53:54,220 INFO L93 Difference]: Finished difference Result 226856 states and 1230554 transitions. [2020-10-15 18:53:54,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:53:54,221 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 18:53:54,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:53:55,064 INFO L225 Difference]: With dead ends: 226856 [2020-10-15 18:53:55,064 INFO L226 Difference]: Without dead ends: 226815 [2020-10-15 18:53:55,065 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 18:54:00,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226815 states. [2020-10-15 18:54:10,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226815 to 91841. [2020-10-15 18:54:10,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91841 states. [2020-10-15 18:54:11,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91841 states to 91841 states and 554890 transitions. [2020-10-15 18:54:11,349 INFO L78 Accepts]: Start accepts. Automaton has 91841 states and 554890 transitions. Word has length 19 [2020-10-15 18:54:11,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:54:11,349 INFO L481 AbstractCegarLoop]: Abstraction has 91841 states and 554890 transitions. [2020-10-15 18:54:11,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:54:11,349 INFO L276 IsEmpty]: Start isEmpty. Operand 91841 states and 554890 transitions. [2020-10-15 18:54:11,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 18:54:11,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:54:11,350 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:54:11,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2020-10-15 18:54:11,350 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:54:11,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:54:11,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1738268839, now seen corresponding path program 1 times [2020-10-15 18:54:11,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:54:11,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536733491] [2020-10-15 18:54:11,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:54:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:54:11,387 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 18:54:11,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536733491] [2020-10-15 18:54:11,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:54:11,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:54:11,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151289772] [2020-10-15 18:54:11,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:54:11,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:54:11,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:54:11,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:54:11,389 INFO L87 Difference]: Start difference. First operand 91841 states and 554890 transitions. Second operand 7 states. Received shutdown request... [2020-10-15 18:54:13,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 18:54:13,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2020-10-15 18:54:13,582 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-15 18:54:13,585 WARN L235 ceAbstractionStarter]: Timeout [2020-10-15 18:54:13,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:54:13 BasicIcfg [2020-10-15 18:54:13,585 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:54:13,586 INFO L168 Benchmark]: Toolchain (without parser) took 766443.98 ms. Allocated memory was 251.7 MB in the beginning and 5.9 GB in the end (delta: 5.6 GB). Free memory was 206.4 MB in the beginning and 3.6 GB in the end (delta: -3.4 GB). Peak memory consumption was 4.6 GB. Max. memory is 14.2 GB. [2020-10-15 18:54:13,586 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 251.7 MB. Free memory is still 228.0 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 18:54:13,587 INFO L168 Benchmark]: CACSL2BoogieTranslator took 675.01 ms. Allocated memory was 251.7 MB in the beginning and 317.2 MB in the end (delta: 65.5 MB). Free memory was 206.4 MB in the beginning and 272.4 MB in the end (delta: -66.1 MB). Peak memory consumption was 33.0 MB. Max. memory is 14.2 GB. [2020-10-15 18:54:13,587 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.75 ms. Allocated memory is still 317.2 MB. Free memory is still 272.4 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 18:54:13,587 INFO L168 Benchmark]: Boogie Preprocessor took 26.58 ms. Allocated memory is still 317.2 MB. Free memory was 272.4 MB in the beginning and 269.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:54:13,587 INFO L168 Benchmark]: RCFGBuilder took 422.03 ms. Allocated memory is still 317.2 MB. Free memory was 269.9 MB in the beginning and 250.6 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 14.2 GB. [2020-10-15 18:54:13,588 INFO L168 Benchmark]: TraceAbstraction took 765246.31 ms. Allocated memory was 317.2 MB in the beginning and 5.9 GB in the end (delta: 5.6 GB). Free memory was 250.6 MB in the beginning and 3.6 GB in the end (delta: -3.3 GB). Peak memory consumption was 4.6 GB. Max. memory is 14.2 GB. [2020-10-15 18:54:13,589 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 251.7 MB. Free memory is still 228.0 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 675.01 ms. Allocated memory was 251.7 MB in the beginning and 317.2 MB in the end (delta: 65.5 MB). Free memory was 206.4 MB in the beginning and 272.4 MB in the end (delta: -66.1 MB). Peak memory consumption was 33.0 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 68.75 ms. Allocated memory is still 317.2 MB. Free memory is still 272.4 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.58 ms. Allocated memory is still 317.2 MB. Free memory was 272.4 MB in the beginning and 269.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 422.03 ms. Allocated memory is still 317.2 MB. Free memory was 269.9 MB in the beginning and 250.6 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 14.2 GB. * TraceAbstraction took 765246.31 ms. Allocated memory was 317.2 MB in the beginning and 5.9 GB in the end (delta: 5.6 GB). Free memory was 250.6 MB in the beginning and 3.6 GB in the end (delta: -3.3 GB). Peak memory consumption was 4.6 GB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 484 VarBasedMoverChecksPositive, 4 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 4 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 3 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.1s, 55 PlacesBefore, 18 PlacesAfterwards, 51 TransitionsBefore, 12 TransitionsAfterwards, 692 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 47 TotalNumberOfCompositions, 670 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 726 VarBasedMoverChecksPositive, 8 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 8 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 32 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.1s, 76 PlacesBefore, 31 PlacesAfterwards, 69 TransitionsBefore, 21 TransitionsAfterwards, 1108 CoEnabledTransitionPairs, 5 FixpointIterations, 25 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 62 TotalNumberOfCompositions, 1240 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 945 VarBasedMoverChecksPositive, 18 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 18 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 39 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 97 PlacesBefore, 41 PlacesAfterwards, 87 TransitionsBefore, 27 TransitionsAfterwards, 1608 CoEnabledTransitionPairs, 5 FixpointIterations, 32 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 4 ConcurrentYvCompositions, 4 ChoiceCompositions, 77 TotalNumberOfCompositions, 2157 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1337 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 21 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 76 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.7s, 118 PlacesBefore, 51 PlacesAfterwards, 105 TransitionsBefore, 33 TransitionsAfterwards, 2192 CoEnabledTransitionPairs, 5 FixpointIterations, 43 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 10 TrivialYvCompositions, 5 ConcurrentYvCompositions, 5 ChoiceCompositions, 97 TotalNumberOfCompositions, 2978 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1675 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 63 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.8s, 139 PlacesBefore, 61 PlacesAfterwards, 123 TransitionsBefore, 39 TransitionsAfterwards, 2860 CoEnabledTransitionPairs, 5 FixpointIterations, 59 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 5 ConcurrentYvCompositions, 6 ChoiceCompositions, 121 TotalNumberOfCompositions, 4168 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 2181 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 113 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.0s, 160 PlacesBefore, 71 PlacesAfterwards, 141 TransitionsBefore, 45 TransitionsAfterwards, 3612 CoEnabledTransitionPairs, 5 FixpointIterations, 66 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 4 ConcurrentYvCompositions, 7 ChoiceCompositions, 134 TotalNumberOfCompositions, 5372 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 2735 VarBasedMoverChecksPositive, 40 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 40 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 127 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.7s, 181 PlacesBefore, 81 PlacesAfterwards, 159 TransitionsBefore, 51 TransitionsAfterwards, 4448 CoEnabledTransitionPairs, 5 FixpointIterations, 74 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 14 TrivialYvCompositions, 3 ConcurrentYvCompositions, 8 ChoiceCompositions, 148 TotalNumberOfCompositions, 7296 MoverChecksTotal - TimeoutResultAtElement [Line: 679]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 679). Cancelled while BasicCegarLoop was constructing difference of abstraction (91841states) and FLOYD_HOARE automaton (currently 13 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (118904 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 49 locations, 1 error locations. Started 7 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 764.8s, OverallIterations: 196, TraceHistogramMax: 7, AutomataDifference: 260.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 23.9s, HoareTripleCheckerStatistics: 15831 SDtfs, 49271 SDslu, 58156 SDs, 0 SdLazy, 65436 SolverSat, 5072 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 45.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6865 GetRequests, 1694 SyntacticMatches, 0 SemanticMatches, 5171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60653 ImplicationChecksByTransitivity, 51.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92876occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 443.6s AutomataMinimizationTime, 189 MinimizatonAttempts, 11270369 StatesRemovedByMinimization, 181 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 6328 NumberOfCodeBlocks, 6252 NumberOfCodeBlocksAsserted, 329 NumberOfCheckSat, 5942 ConstructedInterpolants, 0 QuantifiedInterpolants, 423204 SizeOfPredicates, 456 NumberOfNonLiveVariables, 9748 ConjunctsInSsa, 612 ConjunctsInUnsatCore, 268 InterpolantComputations, 112 PerfectInterpolantSequences, 3236/4682 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown