/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-lit/fkp2013-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 22:19:20,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 22:19:20,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 22:19:20,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 22:19:20,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 22:19:20,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 22:19:20,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 22:19:20,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 22:19:20,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 22:19:20,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 22:19:20,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 22:19:20,929 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 22:19:20,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 22:19:20,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 22:19:20,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 22:19:20,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 22:19:20,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 22:19:20,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 22:19:20,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 22:19:20,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 22:19:20,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 22:19:20,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 22:19:20,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 22:19:20,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 22:19:20,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 22:19:20,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 22:19:20,945 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 22:19:20,946 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 22:19:20,946 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 22:19:20,947 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 22:19:20,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 22:19:20,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 22:19:20,948 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 22:19:20,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 22:19:20,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 22:19:20,954 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 22:19:20,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 22:19:20,954 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 22:19:20,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 22:19:20,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 22:19:20,957 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 22:19:20,958 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-10-15 22:19:21,005 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 22:19:21,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 22:19:21,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 22:19:21,007 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 22:19:21,008 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 22:19:21,008 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 22:19:21,008 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 22:19:21,009 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 22:19:21,009 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 22:19:21,009 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 22:19:21,009 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 22:19:21,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 22:19:21,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 22:19:21,010 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 22:19:21,010 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 22:19:21,010 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 22:19:21,010 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 22:19:21,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 22:19:21,011 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 22:19:21,011 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 22:19:21,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 22:19:21,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:19:21,013 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 22:19:21,013 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 22:19:21,013 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 22:19:21,014 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 22:19:21,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 22:19:21,014 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 22:19:21,014 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 22:19:21,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 22:19:21,310 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 22:19:21,313 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 22:19:21,315 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 22:19:21,315 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 22:19:21,316 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2013-2.i [2020-10-15 22:19:21,377 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3b5f6ac2/9c66e3bb258f4076b5e5adaadd41cb40/FLAG9cc76f6c1 [2020-10-15 22:19:21,857 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 22:19:21,858 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013-2.i [2020-10-15 22:19:21,874 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3b5f6ac2/9c66e3bb258f4076b5e5adaadd41cb40/FLAG9cc76f6c1 [2020-10-15 22:19:22,217 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3b5f6ac2/9c66e3bb258f4076b5e5adaadd41cb40 [2020-10-15 22:19:22,226 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 22:19:22,228 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 22:19:22,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 22:19:22,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 22:19:22,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 22:19:22,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:19:22" (1/1) ... [2020-10-15 22:19:22,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c285691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:22, skipping insertion in model container [2020-10-15 22:19:22,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:19:22" (1/1) ... [2020-10-15 22:19:22,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 22:19:22,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 22:19:22,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:19:22,794 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 22:19:22,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:19:22,917 INFO L208 MainTranslator]: Completed translation [2020-10-15 22:19:22,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:22 WrapperNode [2020-10-15 22:19:22,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 22:19:22,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 22:19:22,919 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 22:19:22,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 22:19:22,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:22" (1/1) ... [2020-10-15 22:19:22,945 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:22" (1/1) ... [2020-10-15 22:19:22,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 22:19:22,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 22:19:22,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 22:19:22,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 22:19:22,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:22" (1/1) ... [2020-10-15 22:19:22,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:22" (1/1) ... [2020-10-15 22:19:22,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:22" (1/1) ... [2020-10-15 22:19:22,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:22" (1/1) ... [2020-10-15 22:19:22,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:22" (1/1) ... [2020-10-15 22:19:22,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:22" (1/1) ... [2020-10-15 22:19:22,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:22" (1/1) ... [2020-10-15 22:19:22,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 22:19:22,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 22:19:22,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 22:19:22,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 22:19:22,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:22" (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 22:19:23,075 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-10-15 22:19:23,075 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-10-15 22:19:23,075 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-15 22:19:23,075 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-15 22:19:23,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 22:19:23,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 22:19:23,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 22:19:23,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 22:19:23,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 22:19:23,078 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 22:19:23,429 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 22:19:23,430 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-10-15 22:19:23,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:19:23 BoogieIcfgContainer [2020-10-15 22:19:23,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 22:19:23,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 22:19:23,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 22:19:23,436 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 22:19:23,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:19:22" (1/3) ... [2020-10-15 22:19:23,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76db88c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:19:23, skipping insertion in model container [2020-10-15 22:19:23,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:22" (2/3) ... [2020-10-15 22:19:23,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76db88c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:19:23, skipping insertion in model container [2020-10-15 22:19:23,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:19:23" (3/3) ... [2020-10-15 22:19:23,441 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2013-2.i [2020-10-15 22:19:23,453 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 22:19:23,453 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 22:19:23,461 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 22:19:23,462 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 22:19:23,488 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,488 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,488 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,489 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,489 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,489 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,490 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,490 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,490 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,491 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,491 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,491 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,492 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,492 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,492 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,492 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,493 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,493 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,493 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,494 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,494 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,497 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,498 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,498 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,498 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,499 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,506 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,506 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,506 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,507 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,507 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,507 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:23,525 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 22:19:23,545 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:19:23,546 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:19:23,546 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:19:23,546 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:19:23,546 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:19:23,546 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:19:23,546 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:19:23,546 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:19:23,557 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:19:23,560 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 51 transitions, 112 flow [2020-10-15 22:19:23,562 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 51 transitions, 112 flow [2020-10-15 22:19:23,564 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 55 places, 51 transitions, 112 flow [2020-10-15 22:19:23,600 INFO L129 PetriNetUnfolder]: 3/61 cut-off events. [2020-10-15 22:19:23,601 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 22:19:23,606 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 22:19:23,609 INFO L117 LiptonReduction]: Number of co-enabled transitions 692 [2020-10-15 22:19:24,661 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2020-10-15 22:19:24,716 INFO L132 LiptonReduction]: Checked pairs total: 670 [2020-10-15 22:19:24,716 INFO L134 LiptonReduction]: Total number of compositions: 47 [2020-10-15 22:19:24,723 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 12 transitions, 34 flow [2020-10-15 22:19:24,734 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 44 states. [2020-10-15 22:19:24,736 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-10-15 22:19:24,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-15 22:19:24,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:24,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-15 22:19:24,743 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 22:19:24,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:24,749 INFO L82 PathProgramCache]: Analyzing trace with hash 208056, now seen corresponding path program 1 times [2020-10-15 22:19:24,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:24,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626171969] [2020-10-15 22:19:24,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:24,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:24,938 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 22:19:24,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626171969] [2020-10-15 22:19:24,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:24,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:19:24,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286679086] [2020-10-15 22:19:24,945 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:19:24,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:24,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:19:24,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:19:24,966 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2020-10-15 22:19:24,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:24,998 INFO L93 Difference]: Finished difference Result 35 states and 59 transitions. [2020-10-15 22:19:24,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:19:25,000 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-15 22:19:25,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:25,010 INFO L225 Difference]: With dead ends: 35 [2020-10-15 22:19:25,010 INFO L226 Difference]: Without dead ends: 31 [2020-10-15 22:19:25,012 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 22:19:25,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-15 22:19:25,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-15 22:19:25,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-15 22:19:25,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2020-10-15 22:19:25,049 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 3 [2020-10-15 22:19:25,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:25,050 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2020-10-15 22:19:25,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:19:25,050 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2020-10-15 22:19:25,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-15 22:19:25,051 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:25,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:25,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 22:19:25,052 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 22:19:25,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:25,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1139052385, now seen corresponding path program 1 times [2020-10-15 22:19:25,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:25,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573337977] [2020-10-15 22:19:25,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:25,121 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 22:19:25,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573337977] [2020-10-15 22:19:25,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:25,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:19:25,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540926234] [2020-10-15 22:19:25,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:19:25,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:25,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:19:25,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:19:25,125 INFO L87 Difference]: Start difference. First operand 31 states and 51 transitions. Second operand 4 states. [2020-10-15 22:19:25,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:25,143 INFO L93 Difference]: Finished difference Result 26 states and 42 transitions. [2020-10-15 22:19:25,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:19:25,143 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-15 22:19:25,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:25,144 INFO L225 Difference]: With dead ends: 26 [2020-10-15 22:19:25,144 INFO L226 Difference]: Without dead ends: 24 [2020-10-15 22:19:25,145 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 22:19:25,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-15 22:19:25,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-15 22:19:25,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-15 22:19:25,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 39 transitions. [2020-10-15 22:19:25,150 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 39 transitions. Word has length 7 [2020-10-15 22:19:25,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:25,151 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 39 transitions. [2020-10-15 22:19:25,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:19:25,151 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2020-10-15 22:19:25,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 22:19:25,152 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:25,152 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:25,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 22:19:25,152 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 22:19:25,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:25,153 INFO L82 PathProgramCache]: Analyzing trace with hash -950894116, now seen corresponding path program 1 times [2020-10-15 22:19:25,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:25,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341957441] [2020-10-15 22:19:25,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:19:25,177 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:19:25,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:19:25,190 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:19:25,219 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 22:19:25,219 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 22:19:25,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 22:19:25,221 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 22:19:25,222 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-15 22:19:25,237 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,237 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,238 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,238 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,238 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,238 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,239 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,239 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,239 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,239 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,239 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,239 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,240 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,241 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,242 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,242 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,242 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,243 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,243 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,243 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,244 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,244 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,244 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,244 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,246 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,247 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,247 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,247 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,247 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,248 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,248 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,248 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,248 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,249 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,249 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,249 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,250 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,250 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,250 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,250 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,253 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,253 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,254 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,254 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,255 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,255 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,255 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,259 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,260 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,260 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,260 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,260 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,264 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,264 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,264 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,264 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,265 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,265 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,267 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,267 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,267 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,267 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,268 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,268 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:25,269 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 22:19:25,269 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:19:25,270 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:19:25,270 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:19:25,270 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:19:25,270 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:19:25,270 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:19:25,270 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:19:25,270 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:19:25,273 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:19:25,273 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 69 transitions, 162 flow [2020-10-15 22:19:25,274 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 69 transitions, 162 flow [2020-10-15 22:19:25,274 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 69 transitions, 162 flow [2020-10-15 22:19:25,293 INFO L129 PetriNetUnfolder]: 4/83 cut-off events. [2020-10-15 22:19:25,293 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-15 22:19:25,295 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 22:19:25,297 INFO L117 LiptonReduction]: Number of co-enabled transitions 1108 [2020-10-15 22:19:26,377 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-15 22:19:26,434 INFO L132 LiptonReduction]: Checked pairs total: 1240 [2020-10-15 22:19:26,435 INFO L134 LiptonReduction]: Total number of compositions: 62 [2020-10-15 22:19:26,435 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 66 flow [2020-10-15 22:19:26,447 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 224 states. [2020-10-15 22:19:26,448 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-10-15 22:19:26,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-15 22:19:26,448 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:26,449 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-15 22:19:26,449 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:26,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:26,449 INFO L82 PathProgramCache]: Analyzing trace with hash 354555, now seen corresponding path program 1 times [2020-10-15 22:19:26,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:26,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651048052] [2020-10-15 22:19:26,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:26,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:26,478 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 22:19:26,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651048052] [2020-10-15 22:19:26,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:26,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:19:26,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563198002] [2020-10-15 22:19:26,482 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:19:26,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:26,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:19:26,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:19:26,483 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 3 states. [2020-10-15 22:19:26,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:26,509 INFO L93 Difference]: Finished difference Result 185 states and 459 transitions. [2020-10-15 22:19:26,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:19:26,509 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-15 22:19:26,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:26,513 INFO L225 Difference]: With dead ends: 185 [2020-10-15 22:19:26,513 INFO L226 Difference]: Without dead ends: 171 [2020-10-15 22:19:26,514 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 22:19:26,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-15 22:19:26,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2020-10-15 22:19:26,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-10-15 22:19:26,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 418 transitions. [2020-10-15 22:19:26,541 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 418 transitions. Word has length 3 [2020-10-15 22:19:26,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:26,541 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 418 transitions. [2020-10-15 22:19:26,542 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:19:26,542 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 418 transitions. [2020-10-15 22:19:26,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 22:19:26,542 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:26,543 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:26,543 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 22:19:26,543 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:26,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:26,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1106209149, now seen corresponding path program 1 times [2020-10-15 22:19:26,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:26,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330495829] [2020-10-15 22:19:26,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:26,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:26,616 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 22:19:26,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330495829] [2020-10-15 22:19:26,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:26,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:26,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802034273] [2020-10-15 22:19:26,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:26,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:26,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:26,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:26,619 INFO L87 Difference]: Start difference. First operand 171 states and 418 transitions. Second operand 5 states. [2020-10-15 22:19:26,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:26,683 INFO L93 Difference]: Finished difference Result 205 states and 460 transitions. [2020-10-15 22:19:26,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:26,683 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-15 22:19:26,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:26,686 INFO L225 Difference]: With dead ends: 205 [2020-10-15 22:19:26,686 INFO L226 Difference]: Without dead ends: 201 [2020-10-15 22:19:26,687 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 22:19:26,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-10-15 22:19:26,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 162. [2020-10-15 22:19:26,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-15 22:19:26,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 399 transitions. [2020-10-15 22:19:26,718 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 399 transitions. Word has length 9 [2020-10-15 22:19:26,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:26,719 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 399 transitions. [2020-10-15 22:19:26,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:26,719 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 399 transitions. [2020-10-15 22:19:26,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:19:26,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:26,720 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:26,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 22:19:26,721 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:26,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:26,721 INFO L82 PathProgramCache]: Analyzing trace with hash 583411714, now seen corresponding path program 1 times [2020-10-15 22:19:26,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:26,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740322634] [2020-10-15 22:19:26,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:26,766 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 22:19:26,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740322634] [2020-10-15 22:19:26,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:26,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:26,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23902187] [2020-10-15 22:19:26,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:26,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:26,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:26,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:26,768 INFO L87 Difference]: Start difference. First operand 162 states and 399 transitions. Second operand 5 states. [2020-10-15 22:19:26,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:26,828 INFO L93 Difference]: Finished difference Result 189 states and 423 transitions. [2020-10-15 22:19:26,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:26,830 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 22:19:26,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:26,832 INFO L225 Difference]: With dead ends: 189 [2020-10-15 22:19:26,832 INFO L226 Difference]: Without dead ends: 185 [2020-10-15 22:19:26,833 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 22:19:26,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-10-15 22:19:26,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 153. [2020-10-15 22:19:26,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-10-15 22:19:26,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 367 transitions. [2020-10-15 22:19:26,848 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 367 transitions. Word has length 13 [2020-10-15 22:19:26,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:26,849 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 367 transitions. [2020-10-15 22:19:26,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:26,850 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 367 transitions. [2020-10-15 22:19:26,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 22:19:26,851 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:26,851 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:26,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 22:19:26,852 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:26,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:26,852 INFO L82 PathProgramCache]: Analyzing trace with hash 903154619, now seen corresponding path program 1 times [2020-10-15 22:19:26,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:26,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817359141] [2020-10-15 22:19:26,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:26,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:19:26,869 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:19:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:19:26,883 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:19:26,890 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 22:19:26,891 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 22:19:26,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 22:19:26,891 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 22:19:26,893 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-15 22:19:26,906 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,907 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,907 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,907 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,908 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,909 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,909 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,909 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,909 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,909 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,910 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,910 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,911 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,912 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,912 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,912 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,912 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,912 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,913 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,913 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,913 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,913 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,913 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,913 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,914 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,914 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,914 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,915 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,915 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,915 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,916 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,916 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,916 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,916 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,916 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,917 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,917 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,917 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,917 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,918 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,918 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,918 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,919 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,921 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,921 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,921 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,922 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,922 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,932 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,933 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,933 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,933 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,933 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,934 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,934 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,934 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,934 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,941 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,942 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,942 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,942 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,942 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,945 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,946 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,946 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,946 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,946 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,948 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,948 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,948 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,948 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,948 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,949 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,952 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,953 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,953 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,953 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,953 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,953 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,954 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,955 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,955 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,955 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,955 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,955 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,956 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-15 22:19:26,957 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:19:26,957 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:19:26,957 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:19:26,957 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:19:26,957 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:19:26,957 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:19:26,957 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:19:26,958 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:19:26,963 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:19:26,963 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 87 transitions, 216 flow [2020-10-15 22:19:26,963 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 87 transitions, 216 flow [2020-10-15 22:19:26,964 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 87 transitions, 216 flow [2020-10-15 22:19:26,999 INFO L129 PetriNetUnfolder]: 5/105 cut-off events. [2020-10-15 22:19:26,999 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-15 22:19:27,002 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 22:19:27,007 INFO L117 LiptonReduction]: Number of co-enabled transitions 1608 [2020-10-15 22:19:28,334 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-10-15 22:19:28,518 INFO L132 LiptonReduction]: Checked pairs total: 2157 [2020-10-15 22:19:28,518 INFO L134 LiptonReduction]: Total number of compositions: 77 [2020-10-15 22:19:28,519 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 27 transitions, 96 flow [2020-10-15 22:19:28,547 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 683 states. [2020-10-15 22:19:28,547 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states. [2020-10-15 22:19:28,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-15 22:19:28,548 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:28,548 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-15 22:19:28,548 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 22:19:28,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:28,549 INFO L82 PathProgramCache]: Analyzing trace with hash 535749, now seen corresponding path program 1 times [2020-10-15 22:19:28,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:28,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190927942] [2020-10-15 22:19:28,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:28,571 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 22:19:28,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190927942] [2020-10-15 22:19:28,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:28,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:19:28,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684562183] [2020-10-15 22:19:28,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:19:28,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:28,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:19:28,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:19:28,573 INFO L87 Difference]: Start difference. First operand 683 states. Second operand 3 states. [2020-10-15 22:19:28,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:28,628 INFO L93 Difference]: Finished difference Result 600 states and 1886 transitions. [2020-10-15 22:19:28,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:19:28,629 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-15 22:19:28,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:28,636 INFO L225 Difference]: With dead ends: 600 [2020-10-15 22:19:28,636 INFO L226 Difference]: Without dead ends: 559 [2020-10-15 22:19:28,637 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 22:19:28,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2020-10-15 22:19:28,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2020-10-15 22:19:28,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-10-15 22:19:28,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 1737 transitions. [2020-10-15 22:19:28,687 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 1737 transitions. Word has length 3 [2020-10-15 22:19:28,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:28,687 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 1737 transitions. [2020-10-15 22:19:28,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:19:28,688 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 1737 transitions. [2020-10-15 22:19:28,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 22:19:28,688 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:28,688 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:28,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 22:19:28,689 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 22:19:28,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:28,689 INFO L82 PathProgramCache]: Analyzing trace with hash -404806880, now seen corresponding path program 1 times [2020-10-15 22:19:28,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:28,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957381242] [2020-10-15 22:19:28,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:28,726 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 22:19:28,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957381242] [2020-10-15 22:19:28,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:28,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:28,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900923586] [2020-10-15 22:19:28,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:28,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:28,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:28,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:28,729 INFO L87 Difference]: Start difference. First operand 559 states and 1737 transitions. Second operand 5 states. [2020-10-15 22:19:28,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:28,803 INFO L93 Difference]: Finished difference Result 817 states and 2317 transitions. [2020-10-15 22:19:28,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:28,804 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-15 22:19:28,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:28,810 INFO L225 Difference]: With dead ends: 817 [2020-10-15 22:19:28,811 INFO L226 Difference]: Without dead ends: 812 [2020-10-15 22:19:28,811 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 22:19:28,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2020-10-15 22:19:28,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 585. [2020-10-15 22:19:28,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-10-15 22:19:28,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 1832 transitions. [2020-10-15 22:19:28,841 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 1832 transitions. Word has length 9 [2020-10-15 22:19:28,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:28,841 INFO L481 AbstractCegarLoop]: Abstraction has 585 states and 1832 transitions. [2020-10-15 22:19:28,841 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:28,841 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 1832 transitions. [2020-10-15 22:19:28,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:19:28,842 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:28,843 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:28,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 22:19:28,843 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 22:19:28,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:28,843 INFO L82 PathProgramCache]: Analyzing trace with hash -669323978, now seen corresponding path program 1 times [2020-10-15 22:19:28,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:28,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530266871] [2020-10-15 22:19:28,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:28,880 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 22:19:28,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530266871] [2020-10-15 22:19:28,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:28,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:28,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252115604] [2020-10-15 22:19:28,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:28,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:28,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:28,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:28,883 INFO L87 Difference]: Start difference. First operand 585 states and 1832 transitions. Second operand 5 states. [2020-10-15 22:19:28,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:28,950 INFO L93 Difference]: Finished difference Result 843 states and 2406 transitions. [2020-10-15 22:19:28,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:28,951 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 22:19:28,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:28,957 INFO L225 Difference]: With dead ends: 843 [2020-10-15 22:19:28,957 INFO L226 Difference]: Without dead ends: 836 [2020-10-15 22:19:28,958 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 22:19:28,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2020-10-15 22:19:28,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 611. [2020-10-15 22:19:28,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-10-15 22:19:28,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1906 transitions. [2020-10-15 22:19:28,985 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1906 transitions. Word has length 13 [2020-10-15 22:19:28,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:28,986 INFO L481 AbstractCegarLoop]: Abstraction has 611 states and 1906 transitions. [2020-10-15 22:19:28,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:28,986 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1906 transitions. [2020-10-15 22:19:28,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:19:28,987 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:28,987 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:28,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 22:19:28,988 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 22:19:28,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:28,988 INFO L82 PathProgramCache]: Analyzing trace with hash -56737855, now seen corresponding path program 1 times [2020-10-15 22:19:28,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:28,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097889198] [2020-10-15 22:19:28,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:29,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:29,041 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 22:19:29,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097889198] [2020-10-15 22:19:29,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043772369] [2020-10-15 22:19:29,042 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 22:19:29,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:29,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:19:29,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:29,154 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 22:19:29,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:29,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:19:29,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539182461] [2020-10-15 22:19:29,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:19:29,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:29,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:19:29,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:19:29,156 INFO L87 Difference]: Start difference. First operand 611 states and 1906 transitions. Second operand 9 states. [2020-10-15 22:19:29,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:29,331 INFO L93 Difference]: Finished difference Result 1059 states and 2818 transitions. [2020-10-15 22:19:29,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:29,332 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-10-15 22:19:29,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:29,340 INFO L225 Difference]: With dead ends: 1059 [2020-10-15 22:19:29,340 INFO L226 Difference]: Without dead ends: 1052 [2020-10-15 22:19:29,341 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 22:19:29,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2020-10-15 22:19:29,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 591. [2020-10-15 22:19:29,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-10-15 22:19:29,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1840 transitions. [2020-10-15 22:19:29,371 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1840 transitions. Word has length 15 [2020-10-15 22:19:29,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:29,371 INFO L481 AbstractCegarLoop]: Abstraction has 591 states and 1840 transitions. [2020-10-15 22:19:29,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:19:29,371 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1840 transitions. [2020-10-15 22:19:29,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:19:29,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:29,372 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:29,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-10-15 22:19:29,586 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 22:19:29,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:29,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1024744543, now seen corresponding path program 2 times [2020-10-15 22:19:29,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:29,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030783078] [2020-10-15 22:19:29,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:29,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:29,648 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 22:19:29,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030783078] [2020-10-15 22:19:29,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:29,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:19:29,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206383340] [2020-10-15 22:19:29,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:19:29,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:29,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:19:29,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:29,652 INFO L87 Difference]: Start difference. First operand 591 states and 1840 transitions. Second operand 7 states. [2020-10-15 22:19:29,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:29,819 INFO L93 Difference]: Finished difference Result 1053 states and 2807 transitions. [2020-10-15 22:19:29,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:29,820 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-15 22:19:29,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:29,831 INFO L225 Difference]: With dead ends: 1053 [2020-10-15 22:19:29,831 INFO L226 Difference]: Without dead ends: 1045 [2020-10-15 22:19:29,832 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 22:19:29,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2020-10-15 22:19:29,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 536. [2020-10-15 22:19:29,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2020-10-15 22:19:29,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1688 transitions. [2020-10-15 22:19:29,865 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1688 transitions. Word has length 15 [2020-10-15 22:19:29,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:29,866 INFO L481 AbstractCegarLoop]: Abstraction has 536 states and 1688 transitions. [2020-10-15 22:19:29,866 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:19:29,866 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1688 transitions. [2020-10-15 22:19:29,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 22:19:29,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:29,867 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:29,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 22:19:29,867 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 22:19:29,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:29,868 INFO L82 PathProgramCache]: Analyzing trace with hash 68174732, now seen corresponding path program 1 times [2020-10-15 22:19:29,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:29,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832599173] [2020-10-15 22:19:29,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:29,946 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 22:19:29,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832599173] [2020-10-15 22:19:29,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:29,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:29,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684274425] [2020-10-15 22:19:29,947 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:29,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:29,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:29,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:29,948 INFO L87 Difference]: Start difference. First operand 536 states and 1688 transitions. Second operand 5 states. [2020-10-15 22:19:30,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:30,008 INFO L93 Difference]: Finished difference Result 736 states and 2123 transitions. [2020-10-15 22:19:30,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:30,009 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-15 22:19:30,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:30,015 INFO L225 Difference]: With dead ends: 736 [2020-10-15 22:19:30,015 INFO L226 Difference]: Without dead ends: 728 [2020-10-15 22:19:30,015 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 22:19:30,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2020-10-15 22:19:30,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 549. [2020-10-15 22:19:30,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 549 states. [2020-10-15 22:19:30,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 1684 transitions. [2020-10-15 22:19:30,056 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 1684 transitions. Word has length 17 [2020-10-15 22:19:30,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:30,056 INFO L481 AbstractCegarLoop]: Abstraction has 549 states and 1684 transitions. [2020-10-15 22:19:30,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:30,056 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 1684 transitions. [2020-10-15 22:19:30,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 22:19:30,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:30,058 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:30,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 22:19:30,058 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 22:19:30,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:30,058 INFO L82 PathProgramCache]: Analyzing trace with hash 2109628021, now seen corresponding path program 1 times [2020-10-15 22:19:30,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:30,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639658923] [2020-10-15 22:19:30,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:30,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:19:30,070 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:19:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:19:30,079 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:19:30,085 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 22:19:30,086 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 22:19:30,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 22:19:30,087 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 22:19:30,087 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-15 22:19:30,098 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,099 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,099 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,099 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,099 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,099 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,100 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,100 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,100 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,100 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,100 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,100 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,101 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,101 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,101 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,101 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,101 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,101 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,102 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,102 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,102 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,102 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,102 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,102 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,103 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,103 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,103 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,103 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,103 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,103 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,103 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,104 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,104 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,104 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,104 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,104 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,104 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,104 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,105 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,105 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,105 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,105 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,105 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,105 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,105 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,106 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,106 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,106 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,106 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,106 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,106 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,107 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,107 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,107 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,107 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,107 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,107 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,107 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,108 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,108 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,108 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,108 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,108 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,108 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,108 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,109 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,109 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,109 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,109 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,109 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,109 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,109 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,110 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,110 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,110 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,110 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,110 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,110 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,110 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,111 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,111 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,111 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,111 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,111 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,112 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,112 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,112 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,112 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,112 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,116 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,117 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,117 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,117 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,117 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,120 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,121 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,121 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,121 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,121 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,122 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,123 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,123 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,123 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,123 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,124 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,125 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,125 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,125 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,125 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,125 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,126 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,127 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,127 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,127 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,127 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,127 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,128 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,129 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,129 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,129 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,129 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,129 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,130 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,131 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,131 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,131 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,131 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,131 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:30,132 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-15 22:19:30,133 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:19:30,133 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:19:30,133 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:19:30,133 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:19:30,133 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:19:30,133 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:19:30,133 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:19:30,134 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:19:30,135 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:19:30,136 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 105 transitions, 274 flow [2020-10-15 22:19:30,136 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 118 places, 105 transitions, 274 flow [2020-10-15 22:19:30,136 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 118 places, 105 transitions, 274 flow [2020-10-15 22:19:30,157 INFO L129 PetriNetUnfolder]: 6/127 cut-off events. [2020-10-15 22:19:30,157 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-15 22:19:30,159 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 22:19:30,163 INFO L117 LiptonReduction]: Number of co-enabled transitions 2192 [2020-10-15 22:19:31,742 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-15 22:19:31,799 INFO L132 LiptonReduction]: Checked pairs total: 2978 [2020-10-15 22:19:31,800 INFO L134 LiptonReduction]: Total number of compositions: 97 [2020-10-15 22:19:31,800 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 33 transitions, 130 flow [2020-10-15 22:19:31,915 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2060 states. [2020-10-15 22:19:31,915 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states. [2020-10-15 22:19:31,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-15 22:19:31,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:31,917 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-15 22:19:31,918 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 22:19:31,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:31,918 INFO L82 PathProgramCache]: Analyzing trace with hash 753552, now seen corresponding path program 1 times [2020-10-15 22:19:31,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:31,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692543594] [2020-10-15 22:19:31,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:31,952 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 22:19:31,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692543594] [2020-10-15 22:19:31,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:31,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:19:31,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795022723] [2020-10-15 22:19:31,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:19:31,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:31,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:19:31,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:19:31,957 INFO L87 Difference]: Start difference. First operand 2060 states. Second operand 3 states. [2020-10-15 22:19:31,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:31,995 INFO L93 Difference]: Finished difference Result 1889 states and 7217 transitions. [2020-10-15 22:19:31,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:19:31,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-15 22:19:31,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:32,010 INFO L225 Difference]: With dead ends: 1889 [2020-10-15 22:19:32,011 INFO L226 Difference]: Without dead ends: 1767 [2020-10-15 22:19:32,011 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 22:19:32,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2020-10-15 22:19:32,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1767. [2020-10-15 22:19:32,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1767 states. [2020-10-15 22:19:32,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 6690 transitions. [2020-10-15 22:19:32,099 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 6690 transitions. Word has length 3 [2020-10-15 22:19:32,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:32,099 INFO L481 AbstractCegarLoop]: Abstraction has 1767 states and 6690 transitions. [2020-10-15 22:19:32,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:19:32,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 6690 transitions. [2020-10-15 22:19:32,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 22:19:32,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:32,100 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:32,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 22:19:32,101 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 22:19:32,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:32,102 INFO L82 PathProgramCache]: Analyzing trace with hash -260829075, now seen corresponding path program 1 times [2020-10-15 22:19:32,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:32,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956317913] [2020-10-15 22:19:32,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:32,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:32,140 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 22:19:32,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956317913] [2020-10-15 22:19:32,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:32,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:32,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207957749] [2020-10-15 22:19:32,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:32,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:32,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:32,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:32,142 INFO L87 Difference]: Start difference. First operand 1767 states and 6690 transitions. Second operand 5 states. [2020-10-15 22:19:32,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:32,213 INFO L93 Difference]: Finished difference Result 2905 states and 10138 transitions. [2020-10-15 22:19:32,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:32,213 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-15 22:19:32,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:32,236 INFO L225 Difference]: With dead ends: 2905 [2020-10-15 22:19:32,237 INFO L226 Difference]: Without dead ends: 2899 [2020-10-15 22:19:32,238 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 22:19:32,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2020-10-15 22:19:32,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 1966. [2020-10-15 22:19:32,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1966 states. [2020-10-15 22:19:32,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 7503 transitions. [2020-10-15 22:19:32,341 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 7503 transitions. Word has length 9 [2020-10-15 22:19:32,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:32,342 INFO L481 AbstractCegarLoop]: Abstraction has 1966 states and 7503 transitions. [2020-10-15 22:19:32,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:32,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 7503 transitions. [2020-10-15 22:19:32,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:19:32,343 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:32,343 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:32,343 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 22:19:32,343 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 22:19:32,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:32,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1408743431, now seen corresponding path program 1 times [2020-10-15 22:19:32,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:32,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322494465] [2020-10-15 22:19:32,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:32,392 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 22:19:32,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322494465] [2020-10-15 22:19:32,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:32,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:32,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825702016] [2020-10-15 22:19:32,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:32,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:32,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:32,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:32,394 INFO L87 Difference]: Start difference. First operand 1966 states and 7503 transitions. Second operand 5 states. [2020-10-15 22:19:32,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:32,475 INFO L93 Difference]: Finished difference Result 3204 states and 11312 transitions. [2020-10-15 22:19:32,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:32,476 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 22:19:32,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:32,511 INFO L225 Difference]: With dead ends: 3204 [2020-10-15 22:19:32,512 INFO L226 Difference]: Without dead ends: 3194 [2020-10-15 22:19:32,512 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 22:19:32,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3194 states. [2020-10-15 22:19:32,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3194 to 2200. [2020-10-15 22:19:32,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2200 states. [2020-10-15 22:19:32,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2200 states to 2200 states and 8453 transitions. [2020-10-15 22:19:32,612 INFO L78 Accepts]: Start accepts. Automaton has 2200 states and 8453 transitions. Word has length 13 [2020-10-15 22:19:32,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:32,614 INFO L481 AbstractCegarLoop]: Abstraction has 2200 states and 8453 transitions. [2020-10-15 22:19:32,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:32,614 INFO L276 IsEmpty]: Start isEmpty. Operand 2200 states and 8453 transitions. [2020-10-15 22:19:32,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:19:32,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:32,615 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:32,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 22:19:32,616 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 22:19:32,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:32,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1555768808, now seen corresponding path program 1 times [2020-10-15 22:19:32,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:32,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501616191] [2020-10-15 22:19:32,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:32,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:32,669 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 22:19:32,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501616191] [2020-10-15 22:19:32,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066145911] [2020-10-15 22:19:32,670 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 22:19:32,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:32,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:19:32,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:32,768 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 22:19:32,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:32,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:19:32,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945876275] [2020-10-15 22:19:32,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:19:32,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:32,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:19:32,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:19:32,770 INFO L87 Difference]: Start difference. First operand 2200 states and 8453 transitions. Second operand 9 states. [2020-10-15 22:19:33,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:33,058 INFO L93 Difference]: Finished difference Result 4556 states and 14911 transitions. [2020-10-15 22:19:33,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:33,059 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-10-15 22:19:33,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:33,088 INFO L225 Difference]: With dead ends: 4556 [2020-10-15 22:19:33,088 INFO L226 Difference]: Without dead ends: 4546 [2020-10-15 22:19:33,090 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 22:19:33,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4546 states. [2020-10-15 22:19:33,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4546 to 2157. [2020-10-15 22:19:33,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2157 states. [2020-10-15 22:19:33,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2157 states to 2157 states and 8278 transitions. [2020-10-15 22:19:33,196 INFO L78 Accepts]: Start accepts. Automaton has 2157 states and 8278 transitions. Word has length 15 [2020-10-15 22:19:33,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:33,196 INFO L481 AbstractCegarLoop]: Abstraction has 2157 states and 8278 transitions. [2020-10-15 22:19:33,197 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:19:33,197 INFO L276 IsEmpty]: Start isEmpty. Operand 2157 states and 8278 transitions. [2020-10-15 22:19:33,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:19:33,197 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:33,197 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:33,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-10-15 22:19:33,412 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 22:19:33,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:33,412 INFO L82 PathProgramCache]: Analyzing trace with hash -887756896, now seen corresponding path program 2 times [2020-10-15 22:19:33,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:33,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104134001] [2020-10-15 22:19:33,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:33,457 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 22:19:33,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104134001] [2020-10-15 22:19:33,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:33,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:19:33,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227506128] [2020-10-15 22:19:33,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:19:33,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:33,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:19:33,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:33,459 INFO L87 Difference]: Start difference. First operand 2157 states and 8278 transitions. Second operand 7 states. [2020-10-15 22:19:33,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:33,661 INFO L93 Difference]: Finished difference Result 4612 states and 15111 transitions. [2020-10-15 22:19:33,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:33,663 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-15 22:19:33,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:33,678 INFO L225 Difference]: With dead ends: 4612 [2020-10-15 22:19:33,678 INFO L226 Difference]: Without dead ends: 4601 [2020-10-15 22:19:33,679 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 22:19:33,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4601 states. [2020-10-15 22:19:33,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4601 to 2035. [2020-10-15 22:19:33,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2035 states. [2020-10-15 22:19:33,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2035 states to 2035 states and 7845 transitions. [2020-10-15 22:19:33,784 INFO L78 Accepts]: Start accepts. Automaton has 2035 states and 7845 transitions. Word has length 15 [2020-10-15 22:19:33,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:33,785 INFO L481 AbstractCegarLoop]: Abstraction has 2035 states and 7845 transitions. [2020-10-15 22:19:33,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:19:33,785 INFO L276 IsEmpty]: Start isEmpty. Operand 2035 states and 7845 transitions. [2020-10-15 22:19:33,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 22:19:33,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:33,786 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:33,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 22:19:33,786 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 22:19:33,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:33,787 INFO L82 PathProgramCache]: Analyzing trace with hash 695111130, now seen corresponding path program 1 times [2020-10-15 22:19:33,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:33,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363923698] [2020-10-15 22:19:33,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:33,831 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 22:19:33,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363923698] [2020-10-15 22:19:33,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:33,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:33,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393371563] [2020-10-15 22:19:33,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:33,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:33,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:33,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:33,833 INFO L87 Difference]: Start difference. First operand 2035 states and 7845 transitions. Second operand 5 states. [2020-10-15 22:19:33,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:33,916 INFO L93 Difference]: Finished difference Result 3265 states and 11681 transitions. [2020-10-15 22:19:33,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:33,916 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-15 22:19:33,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:33,933 INFO L225 Difference]: With dead ends: 3265 [2020-10-15 22:19:33,934 INFO L226 Difference]: Without dead ends: 3250 [2020-10-15 22:19:33,934 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 22:19:33,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3250 states. [2020-10-15 22:19:34,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3250 to 2281. [2020-10-15 22:19:34,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2281 states. [2020-10-15 22:19:34,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 8755 transitions. [2020-10-15 22:19:34,029 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 8755 transitions. Word has length 17 [2020-10-15 22:19:34,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:34,029 INFO L481 AbstractCegarLoop]: Abstraction has 2281 states and 8755 transitions. [2020-10-15 22:19:34,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:34,030 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 8755 transitions. [2020-10-15 22:19:34,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:19:34,031 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:34,031 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:34,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-15 22:19:34,031 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 22:19:34,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:34,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1754455113, now seen corresponding path program 1 times [2020-10-15 22:19:34,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:34,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166224441] [2020-10-15 22:19:34,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:34,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:34,091 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 22:19:34,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166224441] [2020-10-15 22:19:34,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101340568] [2020-10-15 22:19:34,092 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 22:19:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:34,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:19:34,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:34,188 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 22:19:34,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:34,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:19:34,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113116773] [2020-10-15 22:19:34,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:19:34,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:34,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:19:34,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:19:34,189 INFO L87 Difference]: Start difference. First operand 2281 states and 8755 transitions. Second operand 9 states. [2020-10-15 22:19:34,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:34,417 INFO L93 Difference]: Finished difference Result 4825 states and 15986 transitions. [2020-10-15 22:19:34,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:34,417 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-10-15 22:19:34,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:34,431 INFO L225 Difference]: With dead ends: 4825 [2020-10-15 22:19:34,432 INFO L226 Difference]: Without dead ends: 4813 [2020-10-15 22:19:34,432 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 22:19:34,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4813 states. [2020-10-15 22:19:34,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4813 to 2305. [2020-10-15 22:19:34,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2305 states. [2020-10-15 22:19:34,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 8815 transitions. [2020-10-15 22:19:34,610 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 8815 transitions. Word has length 19 [2020-10-15 22:19:34,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:34,610 INFO L481 AbstractCegarLoop]: Abstraction has 2305 states and 8815 transitions. [2020-10-15 22:19:34,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:19:34,611 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 8815 transitions. [2020-10-15 22:19:34,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:19:34,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:34,612 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:34,826 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:34,827 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 22:19:34,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:34,827 INFO L82 PathProgramCache]: Analyzing trace with hash -131464925, now seen corresponding path program 1 times [2020-10-15 22:19:34,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:34,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581055518] [2020-10-15 22:19:34,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:34,870 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 22:19:34,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581055518] [2020-10-15 22:19:34,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067033951] [2020-10-15 22:19:34,871 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 22:19:34,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:34,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:19:34,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:34,964 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 22:19:34,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:34,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:19:34,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087164488] [2020-10-15 22:19:34,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:19:34,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:34,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:19:34,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:19:34,968 INFO L87 Difference]: Start difference. First operand 2305 states and 8815 transitions. Second operand 9 states. [2020-10-15 22:19:35,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:35,213 INFO L93 Difference]: Finished difference Result 4942 states and 16410 transitions. [2020-10-15 22:19:35,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:35,213 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-10-15 22:19:35,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:35,226 INFO L225 Difference]: With dead ends: 4942 [2020-10-15 22:19:35,227 INFO L226 Difference]: Without dead ends: 4925 [2020-10-15 22:19:35,227 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 22:19:35,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4925 states. [2020-10-15 22:19:35,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4925 to 2299. [2020-10-15 22:19:35,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2299 states. [2020-10-15 22:19:35,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 8782 transitions. [2020-10-15 22:19:35,326 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 8782 transitions. Word has length 19 [2020-10-15 22:19:35,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:35,326 INFO L481 AbstractCegarLoop]: Abstraction has 2299 states and 8782 transitions. [2020-10-15 22:19:35,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:19:35,326 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 8782 transitions. [2020-10-15 22:19:35,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:19:35,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:35,328 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:35,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:35,541 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 22:19:35,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:35,542 INFO L82 PathProgramCache]: Analyzing trace with hash -2013120191, now seen corresponding path program 2 times [2020-10-15 22:19:35,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:35,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918399663] [2020-10-15 22:19:35,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:35,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:35,593 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 22:19:35,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918399663] [2020-10-15 22:19:35,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:35,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:19:35,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262605706] [2020-10-15 22:19:35,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:19:35,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:35,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:19:35,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:35,595 INFO L87 Difference]: Start difference. First operand 2299 states and 8782 transitions. Second operand 7 states. [2020-10-15 22:19:35,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:35,808 INFO L93 Difference]: Finished difference Result 4934 states and 16393 transitions. [2020-10-15 22:19:35,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:35,809 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 22:19:35,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:35,825 INFO L225 Difference]: With dead ends: 4934 [2020-10-15 22:19:35,825 INFO L226 Difference]: Without dead ends: 4917 [2020-10-15 22:19:35,826 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 22:19:35,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4917 states. [2020-10-15 22:19:35,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4917 to 2216. [2020-10-15 22:19:35,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2216 states. [2020-10-15 22:19:35,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2216 states to 2216 states and 8477 transitions. [2020-10-15 22:19:35,930 INFO L78 Accepts]: Start accepts. Automaton has 2216 states and 8477 transitions. Word has length 19 [2020-10-15 22:19:35,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:35,931 INFO L481 AbstractCegarLoop]: Abstraction has 2216 states and 8477 transitions. [2020-10-15 22:19:35,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:19:35,931 INFO L276 IsEmpty]: Start isEmpty. Operand 2216 states and 8477 transitions. [2020-10-15 22:19:35,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:19:35,933 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:35,933 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:35,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-15 22:19:35,933 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 22:19:35,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:35,934 INFO L82 PathProgramCache]: Analyzing trace with hash -2013113743, now seen corresponding path program 2 times [2020-10-15 22:19:35,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:35,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755486283] [2020-10-15 22:19:35,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:35,985 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 22:19:35,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755486283] [2020-10-15 22:19:35,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:35,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:19:35,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053667471] [2020-10-15 22:19:35,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:19:35,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:35,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:19:35,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:35,987 INFO L87 Difference]: Start difference. First operand 2216 states and 8477 transitions. Second operand 7 states. [2020-10-15 22:19:36,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:36,187 INFO L93 Difference]: Finished difference Result 4774 states and 15828 transitions. [2020-10-15 22:19:36,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:36,187 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 22:19:36,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:36,199 INFO L225 Difference]: With dead ends: 4774 [2020-10-15 22:19:36,199 INFO L226 Difference]: Without dead ends: 4757 [2020-10-15 22:19:36,200 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 22:19:36,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4757 states. [2020-10-15 22:19:36,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4757 to 2150. [2020-10-15 22:19:36,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2150 states. [2020-10-15 22:19:36,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 8243 transitions. [2020-10-15 22:19:36,304 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 8243 transitions. Word has length 19 [2020-10-15 22:19:36,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:36,305 INFO L481 AbstractCegarLoop]: Abstraction has 2150 states and 8243 transitions. [2020-10-15 22:19:36,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:19:36,305 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 8243 transitions. [2020-10-15 22:19:36,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:36,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:36,308 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 22:19:36,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-15 22:19:36,308 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 22:19:36,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:36,309 INFO L82 PathProgramCache]: Analyzing trace with hash -9146414, now seen corresponding path program 1 times [2020-10-15 22:19:36,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:36,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209472585] [2020-10-15 22:19:36,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:36,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:36,477 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 22:19:36,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209472585] [2020-10-15 22:19:36,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111386948] [2020-10-15 22:19:36,478 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 22:19:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:36,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:19:36,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:36,594 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 22:19:36,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:36,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:19:36,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176973516] [2020-10-15 22:19:36,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:19:36,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:36,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:19:36,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:19:36,598 INFO L87 Difference]: Start difference. First operand 2150 states and 8243 transitions. Second operand 11 states. [2020-10-15 22:19:37,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:37,130 INFO L93 Difference]: Finished difference Result 6025 states and 18746 transitions. [2020-10-15 22:19:37,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:19:37,130 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 22:19:37,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:37,139 INFO L225 Difference]: With dead ends: 6025 [2020-10-15 22:19:37,140 INFO L226 Difference]: Without dead ends: 6017 [2020-10-15 22:19:37,140 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 22:19:37,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6017 states. [2020-10-15 22:19:37,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6017 to 2117. [2020-10-15 22:19:37,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2117 states. [2020-10-15 22:19:37,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 8106 transitions. [2020-10-15 22:19:37,218 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 8106 transitions. Word has length 21 [2020-10-15 22:19:37,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:37,219 INFO L481 AbstractCegarLoop]: Abstraction has 2117 states and 8106 transitions. [2020-10-15 22:19:37,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:19:37,219 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 8106 transitions. [2020-10-15 22:19:37,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:37,221 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:37,221 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 22:19:37,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-10-15 22:19:37,435 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 22:19:37,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:37,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1890795232, now seen corresponding path program 2 times [2020-10-15 22:19:37,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:37,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319934463] [2020-10-15 22:19:37,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:37,505 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 22:19:37,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319934463] [2020-10-15 22:19:37,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51848858] [2020-10-15 22:19:37,506 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 22:19:37,584 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:19:37,584 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:19:37,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:19:37,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:37,641 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 22:19:37,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:37,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:19:37,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630719525] [2020-10-15 22:19:37,643 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:19:37,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:37,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:19:37,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:19:37,644 INFO L87 Difference]: Start difference. First operand 2117 states and 8106 transitions. Second operand 11 states. [2020-10-15 22:19:38,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:38,202 INFO L93 Difference]: Finished difference Result 5914 states and 18384 transitions. [2020-10-15 22:19:38,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:19:38,203 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 22:19:38,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:38,212 INFO L225 Difference]: With dead ends: 5914 [2020-10-15 22:19:38,212 INFO L226 Difference]: Without dead ends: 5903 [2020-10-15 22:19:38,212 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 22:19:38,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5903 states. [2020-10-15 22:19:38,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5903 to 2085. [2020-10-15 22:19:38,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2085 states. [2020-10-15 22:19:38,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 7975 transitions. [2020-10-15 22:19:38,304 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 7975 transitions. Word has length 21 [2020-10-15 22:19:38,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:38,305 INFO L481 AbstractCegarLoop]: Abstraction has 2085 states and 7975 transitions. [2020-10-15 22:19:38,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:19:38,305 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 7975 transitions. [2020-10-15 22:19:38,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:38,307 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:38,307 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 22:19:38,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:38,521 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 22:19:38,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:38,521 INFO L82 PathProgramCache]: Analyzing trace with hash 180724060, now seen corresponding path program 3 times [2020-10-15 22:19:38,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:38,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716201160] [2020-10-15 22:19:38,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:38,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:38,582 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 22:19:38,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716201160] [2020-10-15 22:19:38,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201416530] [2020-10-15 22:19:38,583 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 22:19:38,728 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-15 22:19:38,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:19:38,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:19:38,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:38,757 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 22:19:38,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:38,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:19:38,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254544812] [2020-10-15 22:19:38,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:19:38,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:38,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:19:38,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:19:38,759 INFO L87 Difference]: Start difference. First operand 2085 states and 7975 transitions. Second operand 11 states. [2020-10-15 22:19:39,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:39,268 INFO L93 Difference]: Finished difference Result 5907 states and 18375 transitions. [2020-10-15 22:19:39,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:19:39,268 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 22:19:39,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:39,276 INFO L225 Difference]: With dead ends: 5907 [2020-10-15 22:19:39,276 INFO L226 Difference]: Without dead ends: 5899 [2020-10-15 22:19:39,277 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 22:19:39,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5899 states. [2020-10-15 22:19:39,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5899 to 2008. [2020-10-15 22:19:39,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2008 states. [2020-10-15 22:19:39,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 7698 transitions. [2020-10-15 22:19:39,348 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 7698 transitions. Word has length 21 [2020-10-15 22:19:39,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:39,349 INFO L481 AbstractCegarLoop]: Abstraction has 2008 states and 7698 transitions. [2020-10-15 22:19:39,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:19:39,349 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 7698 transitions. [2020-10-15 22:19:39,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:39,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:39,351 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 22:19:39,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-10-15 22:19:39,564 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 22:19:39,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:39,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1783759286, now seen corresponding path program 4 times [2020-10-15 22:19:39,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:39,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950685528] [2020-10-15 22:19:39,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:39,626 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 22:19:39,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950685528] [2020-10-15 22:19:39,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581810237] [2020-10-15 22:19:39,626 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 22:19:39,687 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 22:19:39,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:19:39,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:19:39,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:39,711 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 22:19:39,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:39,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:19:39,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307929920] [2020-10-15 22:19:39,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:19:39,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:39,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:19:39,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:19:39,713 INFO L87 Difference]: Start difference. First operand 2008 states and 7698 transitions. Second operand 11 states. [2020-10-15 22:19:40,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:40,239 INFO L93 Difference]: Finished difference Result 5835 states and 18155 transitions. [2020-10-15 22:19:40,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:19:40,239 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 22:19:40,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:40,248 INFO L225 Difference]: With dead ends: 5835 [2020-10-15 22:19:40,248 INFO L226 Difference]: Without dead ends: 5824 [2020-10-15 22:19:40,249 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 22:19:40,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5824 states. [2020-10-15 22:19:40,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5824 to 1976. [2020-10-15 22:19:40,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1976 states. [2020-10-15 22:19:40,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 7567 transitions. [2020-10-15 22:19:40,332 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 7567 transitions. Word has length 21 [2020-10-15 22:19:40,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:40,333 INFO L481 AbstractCegarLoop]: Abstraction has 1976 states and 7567 transitions. [2020-10-15 22:19:40,333 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:19:40,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 7567 transitions. [2020-10-15 22:19:40,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:40,335 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:40,335 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:40,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-10-15 22:19:40,550 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 22:19:40,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:40,550 INFO L82 PathProgramCache]: Analyzing trace with hash -964809789, now seen corresponding path program 1 times [2020-10-15 22:19:40,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:40,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634218037] [2020-10-15 22:19:40,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:40,578 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 22:19:40,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634218037] [2020-10-15 22:19:40,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:40,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:40,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705668666] [2020-10-15 22:19:40,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:40,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:40,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:40,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:40,580 INFO L87 Difference]: Start difference. First operand 1976 states and 7567 transitions. Second operand 5 states. [2020-10-15 22:19:40,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:40,646 INFO L93 Difference]: Finished difference Result 3016 states and 10840 transitions. [2020-10-15 22:19:40,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:40,647 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-15 22:19:40,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:40,654 INFO L225 Difference]: With dead ends: 3016 [2020-10-15 22:19:40,654 INFO L226 Difference]: Without dead ends: 3000 [2020-10-15 22:19:40,654 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 22:19:40,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states. [2020-10-15 22:19:40,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 2183. [2020-10-15 22:19:40,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2183 states. [2020-10-15 22:19:40,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2183 states to 2183 states and 8210 transitions. [2020-10-15 22:19:40,755 INFO L78 Accepts]: Start accepts. Automaton has 2183 states and 8210 transitions. Word has length 21 [2020-10-15 22:19:40,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:40,755 INFO L481 AbstractCegarLoop]: Abstraction has 2183 states and 8210 transitions. [2020-10-15 22:19:40,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:40,755 INFO L276 IsEmpty]: Start isEmpty. Operand 2183 states and 8210 transitions. [2020-10-15 22:19:40,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:40,756 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:40,757 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 22:19:40,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-15 22:19:40,757 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 22:19:40,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:40,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1873231848, now seen corresponding path program 5 times [2020-10-15 22:19:40,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:40,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542121043] [2020-10-15 22:19:40,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:40,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:40,823 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 22:19:40,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542121043] [2020-10-15 22:19:40,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:40,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:19:40,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518399186] [2020-10-15 22:19:40,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:19:40,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:40,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:19:40,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:19:40,825 INFO L87 Difference]: Start difference. First operand 2183 states and 8210 transitions. Second operand 9 states. [2020-10-15 22:19:41,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:41,299 INFO L93 Difference]: Finished difference Result 6150 states and 19247 transitions. [2020-10-15 22:19:41,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:19:41,299 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-15 22:19:41,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:41,312 INFO L225 Difference]: With dead ends: 6150 [2020-10-15 22:19:41,312 INFO L226 Difference]: Without dead ends: 6139 [2020-10-15 22:19:41,314 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 22:19:41,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6139 states. [2020-10-15 22:19:41,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6139 to 2096. [2020-10-15 22:19:41,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2096 states. [2020-10-15 22:19:41,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2096 states to 2096 states and 7876 transitions. [2020-10-15 22:19:41,391 INFO L78 Accepts]: Start accepts. Automaton has 2096 states and 7876 transitions. Word has length 21 [2020-10-15 22:19:41,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:41,392 INFO L481 AbstractCegarLoop]: Abstraction has 2096 states and 7876 transitions. [2020-10-15 22:19:41,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:19:41,392 INFO L276 IsEmpty]: Start isEmpty. Operand 2096 states and 7876 transitions. [2020-10-15 22:19:41,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:41,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:41,393 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 22:19:41,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-15 22:19:41,393 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 22:19:41,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:41,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1867041768, now seen corresponding path program 6 times [2020-10-15 22:19:41,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:41,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761981461] [2020-10-15 22:19:41,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:41,449 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 22:19:41,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761981461] [2020-10-15 22:19:41,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:41,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:19:41,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217955993] [2020-10-15 22:19:41,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:19:41,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:41,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:19:41,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:19:41,451 INFO L87 Difference]: Start difference. First operand 2096 states and 7876 transitions. Second operand 9 states. [2020-10-15 22:19:41,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:41,947 INFO L93 Difference]: Finished difference Result 6017 states and 18791 transitions. [2020-10-15 22:19:41,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:19:41,948 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-15 22:19:41,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:41,956 INFO L225 Difference]: With dead ends: 6017 [2020-10-15 22:19:41,957 INFO L226 Difference]: Without dead ends: 6002 [2020-10-15 22:19:41,957 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 22:19:41,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6002 states. [2020-10-15 22:19:42,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6002 to 1965. [2020-10-15 22:19:42,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1965 states. [2020-10-15 22:19:42,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 7429 transitions. [2020-10-15 22:19:42,033 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 7429 transitions. Word has length 21 [2020-10-15 22:19:42,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:42,033 INFO L481 AbstractCegarLoop]: Abstraction has 1965 states and 7429 transitions. [2020-10-15 22:19:42,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:19:42,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 7429 transitions. [2020-10-15 22:19:42,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-15 22:19:42,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:42,034 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:42,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-15 22:19:42,035 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 22:19:42,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:42,035 INFO L82 PathProgramCache]: Analyzing trace with hash 150840888, now seen corresponding path program 1 times [2020-10-15 22:19:42,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:42,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435520387] [2020-10-15 22:19:42,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:42,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:19:42,044 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:19:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:19:42,050 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:19:42,057 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 22:19:42,057 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 22:19:42,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-15 22:19:42,058 WARN L371 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 22:19:42,058 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-10-15 22:19:42,077 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,077 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,078 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,078 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,078 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,078 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,078 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,078 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,078 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,079 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,079 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,079 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,079 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,079 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,079 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,079 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,080 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,080 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,080 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,080 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,080 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,080 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,080 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,080 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,081 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,081 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,081 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,081 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,081 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,081 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,081 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,082 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,082 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,082 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,082 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,082 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,082 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,082 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,083 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,083 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,083 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,083 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,083 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,083 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,083 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,084 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,084 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,084 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,084 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,084 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,084 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,084 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,085 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,085 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,085 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,085 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,085 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,085 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,085 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,086 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,086 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,086 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,086 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,086 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,086 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,086 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,087 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,087 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,087 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,087 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,087 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,087 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,088 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,088 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,088 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,088 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,088 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,088 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,088 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,089 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,089 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,089 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,089 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,089 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,089 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,089 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,090 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,090 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,090 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,090 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,090 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,090 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,090 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,091 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,091 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,091 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,091 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,091 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,091 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,091 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,092 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,092 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,092 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,092 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,092 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,093 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,093 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,093 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,093 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,093 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,094 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,095 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,095 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,095 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,095 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,096 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,096 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,096 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,097 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,097 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,098 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,098 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,098 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,098 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,098 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,099 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,100 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,100 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,100 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,100 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,101 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,101 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,102 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,102 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,102 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,102 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,103 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,103 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,103 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,104 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,104 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,104 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,105 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,105 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,105 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,106 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,106 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,106 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,107 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,107 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,107 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,107 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,108 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,108 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,109 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,109 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,109 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,109 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,110 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,110 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:42,111 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-15 22:19:42,111 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:19:42,111 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:19:42,111 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:19:42,111 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:19:42,112 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:19:42,112 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:19:42,112 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:19:42,112 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:19:42,113 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:19:42,114 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 123 transitions, 336 flow [2020-10-15 22:19:42,114 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 123 transitions, 336 flow [2020-10-15 22:19:42,114 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 139 places, 123 transitions, 336 flow [2020-10-15 22:19:42,136 INFO L129 PetriNetUnfolder]: 7/149 cut-off events. [2020-10-15 22:19:42,136 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-15 22:19:42,138 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 22:19:42,143 INFO L117 LiptonReduction]: Number of co-enabled transitions 2860 [2020-10-15 22:19:43,950 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-15 22:19:44,018 INFO L132 LiptonReduction]: Checked pairs total: 4168 [2020-10-15 22:19:44,019 INFO L134 LiptonReduction]: Total number of compositions: 121 [2020-10-15 22:19:44,019 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 39 transitions, 168 flow [2020-10-15 22:19:44,565 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6191 states. [2020-10-15 22:19:44,565 INFO L276 IsEmpty]: Start isEmpty. Operand 6191 states. [2020-10-15 22:19:44,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-15 22:19:44,565 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:44,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-15 22:19:44,566 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 22:19:44,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:44,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1011964, now seen corresponding path program 1 times [2020-10-15 22:19:44,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:44,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015809921] [2020-10-15 22:19:44,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:44,584 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 22:19:44,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015809921] [2020-10-15 22:19:44,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:44,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:19:44,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011387592] [2020-10-15 22:19:44,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:19:44,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:44,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:19:44,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:19:44,586 INFO L87 Difference]: Start difference. First operand 6191 states. Second operand 3 states. [2020-10-15 22:19:44,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:44,649 INFO L93 Difference]: Finished difference Result 5844 states and 26316 transitions. [2020-10-15 22:19:44,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:19:44,650 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-15 22:19:44,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:44,670 INFO L225 Difference]: With dead ends: 5844 [2020-10-15 22:19:44,670 INFO L226 Difference]: Without dead ends: 5479 [2020-10-15 22:19:44,671 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 22:19:44,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5479 states. [2020-10-15 22:19:44,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5479 to 5479. [2020-10-15 22:19:44,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-10-15 22:19:44,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 24493 transitions. [2020-10-15 22:19:44,892 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 24493 transitions. Word has length 3 [2020-10-15 22:19:44,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:44,892 INFO L481 AbstractCegarLoop]: Abstraction has 5479 states and 24493 transitions. [2020-10-15 22:19:44,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:19:44,892 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 24493 transitions. [2020-10-15 22:19:44,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 22:19:44,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:44,893 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:44,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-15 22:19:44,893 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 22:19:44,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:44,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1084774388, now seen corresponding path program 1 times [2020-10-15 22:19:44,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:44,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171498500] [2020-10-15 22:19:44,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:44,914 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 22:19:44,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171498500] [2020-10-15 22:19:44,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:44,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:44,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375529520] [2020-10-15 22:19:44,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:44,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:44,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:44,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:44,915 INFO L87 Difference]: Start difference. First operand 5479 states and 24493 transitions. Second operand 5 states. [2020-10-15 22:19:45,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:45,027 INFO L93 Difference]: Finished difference Result 9673 states and 40333 transitions. [2020-10-15 22:19:45,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:45,028 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-15 22:19:45,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:45,049 INFO L225 Difference]: With dead ends: 9673 [2020-10-15 22:19:45,050 INFO L226 Difference]: Without dead ends: 9666 [2020-10-15 22:19:45,050 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 22:19:45,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9666 states. [2020-10-15 22:19:45,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9666 to 6331. [2020-10-15 22:19:45,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6331 states. [2020-10-15 22:19:45,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6331 states to 6331 states and 28544 transitions. [2020-10-15 22:19:45,401 INFO L78 Accepts]: Start accepts. Automaton has 6331 states and 28544 transitions. Word has length 9 [2020-10-15 22:19:45,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:45,401 INFO L481 AbstractCegarLoop]: Abstraction has 6331 states and 28544 transitions. [2020-10-15 22:19:45,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:45,401 INFO L276 IsEmpty]: Start isEmpty. Operand 6331 states and 28544 transitions. [2020-10-15 22:19:45,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:19:45,402 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:45,402 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:45,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-15 22:19:45,402 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 22:19:45,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:45,402 INFO L82 PathProgramCache]: Analyzing trace with hash 2112403116, now seen corresponding path program 1 times [2020-10-15 22:19:45,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:45,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481719326] [2020-10-15 22:19:45,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:45,433 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 22:19:45,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481719326] [2020-10-15 22:19:45,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:45,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:45,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512924122] [2020-10-15 22:19:45,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:45,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:45,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:45,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:45,435 INFO L87 Difference]: Start difference. First operand 6331 states and 28544 transitions. Second operand 5 states. [2020-10-15 22:19:45,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:45,562 INFO L93 Difference]: Finished difference Result 11081 states and 46826 transitions. [2020-10-15 22:19:45,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:45,563 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 22:19:45,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:45,588 INFO L225 Difference]: With dead ends: 11081 [2020-10-15 22:19:45,588 INFO L226 Difference]: Without dead ends: 11068 [2020-10-15 22:19:45,588 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 22:19:45,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11068 states. [2020-10-15 22:19:45,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11068 to 7391. [2020-10-15 22:19:45,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7391 states. [2020-10-15 22:19:45,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7391 states to 7391 states and 33694 transitions. [2020-10-15 22:19:45,813 INFO L78 Accepts]: Start accepts. Automaton has 7391 states and 33694 transitions. Word has length 13 [2020-10-15 22:19:45,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:45,814 INFO L481 AbstractCegarLoop]: Abstraction has 7391 states and 33694 transitions. [2020-10-15 22:19:45,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:45,814 INFO L276 IsEmpty]: Start isEmpty. Operand 7391 states and 33694 transitions. [2020-10-15 22:19:45,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:19:45,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:45,814 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:45,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-15 22:19:45,815 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 22:19:45,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:45,815 INFO L82 PathProgramCache]: Analyzing trace with hash -28983895, now seen corresponding path program 1 times [2020-10-15 22:19:45,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:45,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536599325] [2020-10-15 22:19:45,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:45,852 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 22:19:45,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536599325] [2020-10-15 22:19:45,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222872696] [2020-10-15 22:19:45,853 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 22:19:45,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:45,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:19:45,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:45,968 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 22:19:45,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:45,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:19:45,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267425202] [2020-10-15 22:19:45,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:19:45,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:45,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:19:45,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:19:45,970 INFO L87 Difference]: Start difference. First operand 7391 states and 33694 transitions. Second operand 9 states. [2020-10-15 22:19:46,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:46,221 INFO L93 Difference]: Finished difference Result 16749 states and 66010 transitions. [2020-10-15 22:19:46,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:46,221 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-10-15 22:19:46,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:46,258 INFO L225 Difference]: With dead ends: 16749 [2020-10-15 22:19:46,258 INFO L226 Difference]: Without dead ends: 16736 [2020-10-15 22:19:46,258 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 22:19:46,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16736 states. [2020-10-15 22:19:46,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16736 to 7303. [2020-10-15 22:19:46,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7303 states. [2020-10-15 22:19:46,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7303 states to 7303 states and 33260 transitions. [2020-10-15 22:19:46,735 INFO L78 Accepts]: Start accepts. Automaton has 7303 states and 33260 transitions. Word has length 15 [2020-10-15 22:19:46,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:46,736 INFO L481 AbstractCegarLoop]: Abstraction has 7303 states and 33260 transitions. [2020-10-15 22:19:46,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:19:46,736 INFO L276 IsEmpty]: Start isEmpty. Operand 7303 states and 33260 transitions. [2020-10-15 22:19:46,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:19:46,736 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:46,736 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:46,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:46,937 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 22:19:46,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:46,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1500121559, now seen corresponding path program 2 times [2020-10-15 22:19:46,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:46,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151045116] [2020-10-15 22:19:46,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:46,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:46,973 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 22:19:46,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151045116] [2020-10-15 22:19:46,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:46,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:19:46,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038759154] [2020-10-15 22:19:46,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:19:46,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:46,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:19:46,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:46,975 INFO L87 Difference]: Start difference. First operand 7303 states and 33260 transitions. Second operand 7 states. [2020-10-15 22:19:47,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:47,231 INFO L93 Difference]: Finished difference Result 17085 states and 67393 transitions. [2020-10-15 22:19:47,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:47,231 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-15 22:19:47,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:47,267 INFO L225 Difference]: With dead ends: 17085 [2020-10-15 22:19:47,267 INFO L226 Difference]: Without dead ends: 17071 [2020-10-15 22:19:47,267 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 22:19:47,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17071 states. [2020-10-15 22:19:47,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17071 to 7048. [2020-10-15 22:19:47,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7048 states. [2020-10-15 22:19:47,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7048 states to 7048 states and 32136 transitions. [2020-10-15 22:19:47,531 INFO L78 Accepts]: Start accepts. Automaton has 7048 states and 32136 transitions. Word has length 15 [2020-10-15 22:19:47,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:47,531 INFO L481 AbstractCegarLoop]: Abstraction has 7048 states and 32136 transitions. [2020-10-15 22:19:47,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:19:47,531 INFO L276 IsEmpty]: Start isEmpty. Operand 7048 states and 32136 transitions. [2020-10-15 22:19:47,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 22:19:47,532 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:47,532 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:47,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-15 22:19:47,532 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 22:19:47,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:47,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1891696605, now seen corresponding path program 1 times [2020-10-15 22:19:47,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:47,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652031757] [2020-10-15 22:19:47,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:47,564 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 22:19:47,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652031757] [2020-10-15 22:19:47,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:47,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:47,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483696976] [2020-10-15 22:19:47,565 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:47,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:47,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:47,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:47,565 INFO L87 Difference]: Start difference. First operand 7048 states and 32136 transitions. Second operand 5 states. [2020-10-15 22:19:47,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:47,680 INFO L93 Difference]: Finished difference Result 12234 states and 52488 transitions. [2020-10-15 22:19:47,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:47,680 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-15 22:19:47,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:47,708 INFO L225 Difference]: With dead ends: 12234 [2020-10-15 22:19:47,708 INFO L226 Difference]: Without dead ends: 12212 [2020-10-15 22:19:47,710 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 22:19:47,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12212 states. [2020-10-15 22:19:47,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12212 to 8342. [2020-10-15 22:19:47,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8342 states. [2020-10-15 22:19:47,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8342 states to 8342 states and 38278 transitions. [2020-10-15 22:19:47,954 INFO L78 Accepts]: Start accepts. Automaton has 8342 states and 38278 transitions. Word has length 17 [2020-10-15 22:19:47,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:47,954 INFO L481 AbstractCegarLoop]: Abstraction has 8342 states and 38278 transitions. [2020-10-15 22:19:47,954 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:47,954 INFO L276 IsEmpty]: Start isEmpty. Operand 8342 states and 38278 transitions. [2020-10-15 22:19:47,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:19:47,956 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:47,956 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:47,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-15 22:19:47,956 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 22:19:47,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:47,956 INFO L82 PathProgramCache]: Analyzing trace with hash -74039136, now seen corresponding path program 1 times [2020-10-15 22:19:47,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:47,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392757365] [2020-10-15 22:19:47,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:47,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:47,996 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 22:19:47,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392757365] [2020-10-15 22:19:47,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802471601] [2020-10-15 22:19:47,996 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 22:19:48,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:48,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:19:48,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:48,872 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 22:19:48,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:48,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:19:48,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16997209] [2020-10-15 22:19:48,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:19:48,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:48,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:19:48,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:19:48,874 INFO L87 Difference]: Start difference. First operand 8342 states and 38278 transitions. Second operand 9 states. [2020-10-15 22:19:49,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:49,137 INFO L93 Difference]: Finished difference Result 19016 states and 76191 transitions. [2020-10-15 22:19:49,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:49,137 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-10-15 22:19:49,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:49,177 INFO L225 Difference]: With dead ends: 19016 [2020-10-15 22:19:49,177 INFO L226 Difference]: Without dead ends: 18998 [2020-10-15 22:19:49,177 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 22:19:49,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18998 states. [2020-10-15 22:19:49,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18998 to 8452. [2020-10-15 22:19:49,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8452 states. [2020-10-15 22:19:49,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8452 states to 8452 states and 38704 transitions. [2020-10-15 22:19:49,476 INFO L78 Accepts]: Start accepts. Automaton has 8452 states and 38704 transitions. Word has length 19 [2020-10-15 22:19:49,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:49,476 INFO L481 AbstractCegarLoop]: Abstraction has 8452 states and 38704 transitions. [2020-10-15 22:19:49,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:19:49,476 INFO L276 IsEmpty]: Start isEmpty. Operand 8452 states and 38704 transitions. [2020-10-15 22:19:49,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:19:49,477 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:49,477 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:49,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2020-10-15 22:19:49,678 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 22:19:49,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:49,678 INFO L82 PathProgramCache]: Analyzing trace with hash -274460668, now seen corresponding path program 1 times [2020-10-15 22:19:49,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:49,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138338666] [2020-10-15 22:19:49,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:49,719 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 22:19:49,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138338666] [2020-10-15 22:19:49,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962682719] [2020-10-15 22:19:49,720 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 22:19:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:49,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:19:49,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:49,829 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 22:19:49,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:49,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:19:49,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892153324] [2020-10-15 22:19:49,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:19:49,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:49,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:19:49,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:19:49,831 INFO L87 Difference]: Start difference. First operand 8452 states and 38704 transitions. Second operand 9 states. [2020-10-15 22:19:50,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:50,151 INFO L93 Difference]: Finished difference Result 19670 states and 79028 transitions. [2020-10-15 22:19:50,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:50,152 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-10-15 22:19:50,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:50,225 INFO L225 Difference]: With dead ends: 19670 [2020-10-15 22:19:50,225 INFO L226 Difference]: Without dead ends: 19645 [2020-10-15 22:19:50,226 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 22:19:50,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19645 states. [2020-10-15 22:19:50,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19645 to 8480. [2020-10-15 22:19:50,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8480 states. [2020-10-15 22:19:50,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8480 states to 8480 states and 38825 transitions. [2020-10-15 22:19:50,666 INFO L78 Accepts]: Start accepts. Automaton has 8480 states and 38825 transitions. Word has length 19 [2020-10-15 22:19:50,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:50,666 INFO L481 AbstractCegarLoop]: Abstraction has 8480 states and 38825 transitions. [2020-10-15 22:19:50,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:19:50,666 INFO L276 IsEmpty]: Start isEmpty. Operand 8480 states and 38825 transitions. [2020-10-15 22:19:50,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:19:50,667 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:50,667 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:50,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2020-10-15 22:19:50,868 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 22:19:50,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:50,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1149256224, now seen corresponding path program 2 times [2020-10-15 22:19:50,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:50,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8327856] [2020-10-15 22:19:50,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:50,906 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 22:19:50,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8327856] [2020-10-15 22:19:50,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:50,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:19:50,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381925565] [2020-10-15 22:19:50,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:19:50,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:50,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:19:50,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:50,908 INFO L87 Difference]: Start difference. First operand 8480 states and 38825 transitions. Second operand 7 states. [2020-10-15 22:19:51,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:51,258 INFO L93 Difference]: Finished difference Result 19852 states and 79846 transitions. [2020-10-15 22:19:51,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:51,258 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 22:19:51,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:51,300 INFO L225 Difference]: With dead ends: 19852 [2020-10-15 22:19:51,300 INFO L226 Difference]: Without dead ends: 19827 [2020-10-15 22:19:51,301 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 22:19:51,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19827 states. [2020-10-15 22:19:51,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19827 to 8379. [2020-10-15 22:19:51,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8379 states. [2020-10-15 22:19:51,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8379 states to 8379 states and 38406 transitions. [2020-10-15 22:19:51,631 INFO L78 Accepts]: Start accepts. Automaton has 8379 states and 38406 transitions. Word has length 19 [2020-10-15 22:19:51,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:51,631 INFO L481 AbstractCegarLoop]: Abstraction has 8379 states and 38406 transitions. [2020-10-15 22:19:51,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:19:51,632 INFO L276 IsEmpty]: Start isEmpty. Operand 8379 states and 38406 transitions. [2020-10-15 22:19:51,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:19:51,633 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:51,633 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:51,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-15 22:19:51,633 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 22:19:51,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:51,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1149271290, now seen corresponding path program 2 times [2020-10-15 22:19:51,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:51,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035841192] [2020-10-15 22:19:51,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:51,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:51,676 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 22:19:51,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035841192] [2020-10-15 22:19:51,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:51,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:19:51,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119995700] [2020-10-15 22:19:51,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:19:51,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:51,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:19:51,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:51,678 INFO L87 Difference]: Start difference. First operand 8379 states and 38406 transitions. Second operand 7 states. [2020-10-15 22:19:51,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:51,954 INFO L93 Difference]: Finished difference Result 19555 states and 78564 transitions. [2020-10-15 22:19:51,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:51,955 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 22:19:51,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:52,007 INFO L225 Difference]: With dead ends: 19555 [2020-10-15 22:19:52,007 INFO L226 Difference]: Without dead ends: 19530 [2020-10-15 22:19:52,008 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 22:19:52,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19530 states. [2020-10-15 22:19:52,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19530 to 8317. [2020-10-15 22:19:52,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8317 states. [2020-10-15 22:19:52,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8317 states to 8317 states and 38184 transitions. [2020-10-15 22:19:52,326 INFO L78 Accepts]: Start accepts. Automaton has 8317 states and 38184 transitions. Word has length 19 [2020-10-15 22:19:52,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:52,326 INFO L481 AbstractCegarLoop]: Abstraction has 8317 states and 38184 transitions. [2020-10-15 22:19:52,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:19:52,326 INFO L276 IsEmpty]: Start isEmpty. Operand 8317 states and 38184 transitions. [2020-10-15 22:19:52,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:52,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:52,328 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 22:19:52,328 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-15 22:19:52,328 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 22:19:52,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:52,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1557322431, now seen corresponding path program 1 times [2020-10-15 22:19:52,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:52,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301844201] [2020-10-15 22:19:52,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:52,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:52,384 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 22:19:52,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301844201] [2020-10-15 22:19:52,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686047520] [2020-10-15 22:19:52,385 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 22:19:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:52,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:19:52,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:52,478 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 22:19:52,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:52,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:19:52,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964281052] [2020-10-15 22:19:52,479 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:19:52,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:52,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:19:52,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:19:52,480 INFO L87 Difference]: Start difference. First operand 8317 states and 38184 transitions. Second operand 11 states. [2020-10-15 22:19:53,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:53,223 INFO L93 Difference]: Finished difference Result 26969 states and 101544 transitions. [2020-10-15 22:19:53,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:19:53,224 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 22:19:53,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:53,284 INFO L225 Difference]: With dead ends: 26969 [2020-10-15 22:19:53,285 INFO L226 Difference]: Without dead ends: 26957 [2020-10-15 22:19:53,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:19:53,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26957 states. [2020-10-15 22:19:53,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26957 to 8204. [2020-10-15 22:19:53,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8204 states. [2020-10-15 22:19:53,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8204 states to 8204 states and 37628 transitions. [2020-10-15 22:19:53,673 INFO L78 Accepts]: Start accepts. Automaton has 8204 states and 37628 transitions. Word has length 21 [2020-10-15 22:19:53,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:53,673 INFO L481 AbstractCegarLoop]: Abstraction has 8204 states and 37628 transitions. [2020-10-15 22:19:53,673 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:19:53,673 INFO L276 IsEmpty]: Start isEmpty. Operand 8204 states and 37628 transitions. [2020-10-15 22:19:53,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:53,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:53,675 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 22:19:53,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:53,875 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 22:19:53,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:53,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1862834243, now seen corresponding path program 2 times [2020-10-15 22:19:53,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:53,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581197059] [2020-10-15 22:19:53,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:53,931 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 22:19:53,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581197059] [2020-10-15 22:19:53,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986548349] [2020-10-15 22:19:53,932 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 22:19:54,010 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:19:54,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:19:54,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:19:54,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:54,035 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 22:19:54,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:54,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:19:54,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149968827] [2020-10-15 22:19:54,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:19:54,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:54,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:19:54,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:19:54,036 INFO L87 Difference]: Start difference. First operand 8204 states and 37628 transitions. Second operand 11 states. [2020-10-15 22:19:54,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:54,806 INFO L93 Difference]: Finished difference Result 26661 states and 100277 transitions. [2020-10-15 22:19:54,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:19:54,807 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 22:19:54,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:54,910 INFO L225 Difference]: With dead ends: 26661 [2020-10-15 22:19:54,910 INFO L226 Difference]: Without dead ends: 26645 [2020-10-15 22:19:54,911 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 22:19:55,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26645 states. [2020-10-15 22:19:55,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26645 to 8091. [2020-10-15 22:19:55,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8091 states. [2020-10-15 22:19:55,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8091 states to 8091 states and 37076 transitions. [2020-10-15 22:19:55,640 INFO L78 Accepts]: Start accepts. Automaton has 8091 states and 37076 transitions. Word has length 21 [2020-10-15 22:19:55,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:55,640 INFO L481 AbstractCegarLoop]: Abstraction has 8091 states and 37076 transitions. [2020-10-15 22:19:55,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:19:55,641 INFO L276 IsEmpty]: Start isEmpty. Operand 8091 states and 37076 transitions. [2020-10-15 22:19:55,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:55,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:55,642 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 22:19:55,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2020-10-15 22:19:55,857 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 22:19:55,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:55,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1769991039, now seen corresponding path program 3 times [2020-10-15 22:19:55,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:55,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700182575] [2020-10-15 22:19:55,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:55,934 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 22:19:55,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700182575] [2020-10-15 22:19:55,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313960367] [2020-10-15 22:19:55,935 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 22:19:56,130 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-15 22:19:56,130 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:19:56,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:19:56,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:56,170 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 22:19:56,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:56,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:19:56,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172592612] [2020-10-15 22:19:56,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:19:56,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:56,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:19:56,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:19:56,172 INFO L87 Difference]: Start difference. First operand 8091 states and 37076 transitions. Second operand 11 states. [2020-10-15 22:19:56,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:56,815 INFO L93 Difference]: Finished difference Result 26686 states and 100402 transitions. [2020-10-15 22:19:56,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:19:56,815 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 22:19:56,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:56,895 INFO L225 Difference]: With dead ends: 26686 [2020-10-15 22:19:56,895 INFO L226 Difference]: Without dead ends: 26674 [2020-10-15 22:19:56,895 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 22:19:57,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26674 states. [2020-10-15 22:19:57,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26674 to 7861. [2020-10-15 22:19:57,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7861 states. [2020-10-15 22:19:57,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7861 states to 7861 states and 36066 transitions. [2020-10-15 22:19:57,262 INFO L78 Accepts]: Start accepts. Automaton has 7861 states and 36066 transitions. Word has length 21 [2020-10-15 22:19:57,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:57,262 INFO L481 AbstractCegarLoop]: Abstraction has 7861 states and 36066 transitions. [2020-10-15 22:19:57,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:19:57,263 INFO L276 IsEmpty]: Start isEmpty. Operand 7861 states and 36066 transitions. [2020-10-15 22:19:57,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:57,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:57,264 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 22:19:57,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:57,464 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 22:19:57,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:57,465 INFO L82 PathProgramCache]: Analyzing trace with hash -1763681919, now seen corresponding path program 4 times [2020-10-15 22:19:57,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:57,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838708088] [2020-10-15 22:19:57,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:57,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:57,513 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 22:19:57,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838708088] [2020-10-15 22:19:57,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025443235] [2020-10-15 22:19:57,514 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 22:19:57,585 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 22:19:57,585 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:19:57,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:19:57,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:57,611 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 22:19:57,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:57,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:19:57,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912498128] [2020-10-15 22:19:57,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:19:57,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:57,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:19:57,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:19:57,616 INFO L87 Difference]: Start difference. First operand 7861 states and 36066 transitions. Second operand 11 states. [2020-10-15 22:19:58,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:58,226 INFO L93 Difference]: Finished difference Result 26489 states and 99650 transitions. [2020-10-15 22:19:58,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:19:58,227 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 22:19:58,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:58,286 INFO L225 Difference]: With dead ends: 26489 [2020-10-15 22:19:58,287 INFO L226 Difference]: Without dead ends: 26473 [2020-10-15 22:19:58,287 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 22:19:58,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26473 states. [2020-10-15 22:19:58,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26473 to 7748. [2020-10-15 22:19:58,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7748 states. [2020-10-15 22:19:58,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7748 states to 7748 states and 35514 transitions. [2020-10-15 22:19:58,805 INFO L78 Accepts]: Start accepts. Automaton has 7748 states and 35514 transitions. Word has length 21 [2020-10-15 22:19:58,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:58,805 INFO L481 AbstractCegarLoop]: Abstraction has 7748 states and 35514 transitions. [2020-10-15 22:19:58,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:19:58,805 INFO L276 IsEmpty]: Start isEmpty. Operand 7748 states and 35514 transitions. [2020-10-15 22:19:58,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:58,807 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:58,807 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:59,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2020-10-15 22:19:59,013 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 22:19:59,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:59,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1774143127, now seen corresponding path program 1 times [2020-10-15 22:19:59,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:59,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267963562] [2020-10-15 22:19:59,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:59,043 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 22:19:59,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267963562] [2020-10-15 22:19:59,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:59,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:59,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213011858] [2020-10-15 22:19:59,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:59,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:59,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:59,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:59,046 INFO L87 Difference]: Start difference. First operand 7748 states and 35514 transitions. Second operand 5 states. [2020-10-15 22:19:59,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:59,169 INFO L93 Difference]: Finished difference Result 13251 states and 57501 transitions. [2020-10-15 22:19:59,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:59,169 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-15 22:19:59,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:59,204 INFO L225 Difference]: With dead ends: 13251 [2020-10-15 22:19:59,204 INFO L226 Difference]: Without dead ends: 13220 [2020-10-15 22:19:59,204 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 22:19:59,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13220 states. [2020-10-15 22:19:59,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13220 to 9255. [2020-10-15 22:19:59,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9255 states. [2020-10-15 22:19:59,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9255 states to 9255 states and 42368 transitions. [2020-10-15 22:19:59,469 INFO L78 Accepts]: Start accepts. Automaton has 9255 states and 42368 transitions. Word has length 21 [2020-10-15 22:19:59,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:59,470 INFO L481 AbstractCegarLoop]: Abstraction has 9255 states and 42368 transitions. [2020-10-15 22:19:59,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:59,470 INFO L276 IsEmpty]: Start isEmpty. Operand 9255 states and 42368 transitions. [2020-10-15 22:19:59,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:59,471 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:59,471 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 22:19:59,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-15 22:19:59,471 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 22:19:59,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:59,471 INFO L82 PathProgramCache]: Analyzing trace with hash -628636285, now seen corresponding path program 5 times [2020-10-15 22:19:59,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:59,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378418005] [2020-10-15 22:19:59,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:59,530 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 22:19:59,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378418005] [2020-10-15 22:19:59,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:59,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:19:59,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367012260] [2020-10-15 22:19:59,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:19:59,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:59,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:19:59,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:19:59,532 INFO L87 Difference]: Start difference. First operand 9255 states and 42368 transitions. Second operand 9 states. [2020-10-15 22:20:00,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:00,146 INFO L93 Difference]: Finished difference Result 29788 states and 113841 transitions. [2020-10-15 22:20:00,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:00,147 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-15 22:20:00,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:00,215 INFO L225 Difference]: With dead ends: 29788 [2020-10-15 22:20:00,215 INFO L226 Difference]: Without dead ends: 29770 [2020-10-15 22:20:00,215 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 22:20:00,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29770 states. [2020-10-15 22:20:00,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29770 to 8964. [2020-10-15 22:20:00,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8964 states. [2020-10-15 22:20:00,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8964 states to 8964 states and 41031 transitions. [2020-10-15 22:20:00,626 INFO L78 Accepts]: Start accepts. Automaton has 8964 states and 41031 transitions. Word has length 21 [2020-10-15 22:20:00,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:00,626 INFO L481 AbstractCegarLoop]: Abstraction has 8964 states and 41031 transitions. [2020-10-15 22:20:00,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:20:00,627 INFO L276 IsEmpty]: Start isEmpty. Operand 8964 states and 41031 transitions. [2020-10-15 22:20:00,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:20:00,628 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:00,628 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 22:20:00,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-15 22:20:00,628 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 22:20:00,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:00,629 INFO L82 PathProgramCache]: Analyzing trace with hash -643099645, now seen corresponding path program 6 times [2020-10-15 22:20:00,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:00,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405204860] [2020-10-15 22:20:00,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:00,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:00,680 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 22:20:00,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405204860] [2020-10-15 22:20:00,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:00,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:20:00,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451758552] [2020-10-15 22:20:00,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:20:00,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:00,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:20:00,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:20:00,681 INFO L87 Difference]: Start difference. First operand 8964 states and 41031 transitions. Second operand 9 states. [2020-10-15 22:20:01,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:01,400 INFO L93 Difference]: Finished difference Result 29379 states and 112099 transitions. [2020-10-15 22:20:01,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:01,401 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-15 22:20:01,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:01,470 INFO L225 Difference]: With dead ends: 29379 [2020-10-15 22:20:01,471 INFO L226 Difference]: Without dead ends: 29356 [2020-10-15 22:20:01,471 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 22:20:01,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29356 states. [2020-10-15 22:20:02,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29356 to 8573. [2020-10-15 22:20:02,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8573 states. [2020-10-15 22:20:02,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8573 states to 8573 states and 39353 transitions. [2020-10-15 22:20:02,090 INFO L78 Accepts]: Start accepts. Automaton has 8573 states and 39353 transitions. Word has length 21 [2020-10-15 22:20:02,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:02,090 INFO L481 AbstractCegarLoop]: Abstraction has 8573 states and 39353 transitions. [2020-10-15 22:20:02,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:20:02,090 INFO L276 IsEmpty]: Start isEmpty. Operand 8573 states and 39353 transitions. [2020-10-15 22:20:02,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 22:20:02,092 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:02,092 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:02,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-15 22:20:02,092 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 22:20:02,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:02,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1599602836, now seen corresponding path program 1 times [2020-10-15 22:20:02,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:02,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844008982] [2020-10-15 22:20:02,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:02,129 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 22:20:02,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844008982] [2020-10-15 22:20:02,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127913572] [2020-10-15 22:20:02,130 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 22:20:02,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:02,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:20:02,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:02,226 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 22:20:02,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:02,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:20:02,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199280927] [2020-10-15 22:20:02,227 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:20:02,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:02,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:20:02,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:20:02,228 INFO L87 Difference]: Start difference. First operand 8573 states and 39353 transitions. Second operand 9 states. [2020-10-15 22:20:02,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:02,534 INFO L93 Difference]: Finished difference Result 19727 states and 80274 transitions. [2020-10-15 22:20:02,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:20:02,538 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-15 22:20:02,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:02,581 INFO L225 Difference]: With dead ends: 19727 [2020-10-15 22:20:02,581 INFO L226 Difference]: Without dead ends: 19703 [2020-10-15 22:20:02,581 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 22:20:02,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19703 states. [2020-10-15 22:20:02,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19703 to 8847. [2020-10-15 22:20:02,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8847 states. [2020-10-15 22:20:02,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8847 states to 8847 states and 40495 transitions. [2020-10-15 22:20:02,886 INFO L78 Accepts]: Start accepts. Automaton has 8847 states and 40495 transitions. Word has length 23 [2020-10-15 22:20:02,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:02,886 INFO L481 AbstractCegarLoop]: Abstraction has 8847 states and 40495 transitions. [2020-10-15 22:20:02,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:20:02,886 INFO L276 IsEmpty]: Start isEmpty. Operand 8847 states and 40495 transitions. [2020-10-15 22:20:02,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 22:20:02,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:02,889 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:03,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2020-10-15 22:20:03,101 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 22:20:03,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:03,102 INFO L82 PathProgramCache]: Analyzing trace with hash 72758744, now seen corresponding path program 1 times [2020-10-15 22:20:03,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:03,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393954099] [2020-10-15 22:20:03,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:03,141 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 22:20:03,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393954099] [2020-10-15 22:20:03,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957612169] [2020-10-15 22:20:03,142 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 22:20:03,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:03,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:20:03,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:03,237 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 22:20:03,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:03,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:20:03,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251612237] [2020-10-15 22:20:03,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:20:03,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:03,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:20:03,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:20:03,239 INFO L87 Difference]: Start difference. First operand 8847 states and 40495 transitions. Second operand 9 states. [2020-10-15 22:20:03,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:03,535 INFO L93 Difference]: Finished difference Result 20694 states and 84261 transitions. [2020-10-15 22:20:03,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:20:03,536 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-15 22:20:03,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:03,580 INFO L225 Difference]: With dead ends: 20694 [2020-10-15 22:20:03,581 INFO L226 Difference]: Without dead ends: 20666 [2020-10-15 22:20:03,581 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 22:20:03,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20666 states. [2020-10-15 22:20:03,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20666 to 9115. [2020-10-15 22:20:03,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9115 states. [2020-10-15 22:20:03,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9115 states to 9115 states and 41679 transitions. [2020-10-15 22:20:03,909 INFO L78 Accepts]: Start accepts. Automaton has 9115 states and 41679 transitions. Word has length 23 [2020-10-15 22:20:03,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:03,909 INFO L481 AbstractCegarLoop]: Abstraction has 9115 states and 41679 transitions. [2020-10-15 22:20:03,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:20:03,910 INFO L276 IsEmpty]: Start isEmpty. Operand 9115 states and 41679 transitions. [2020-10-15 22:20:03,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 22:20:03,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:03,912 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:04,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:04,113 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 22:20:04,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:04,113 INFO L82 PathProgramCache]: Analyzing trace with hash -328675496, now seen corresponding path program 1 times [2020-10-15 22:20:04,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:04,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074428614] [2020-10-15 22:20:04,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:04,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:04,152 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 22:20:04,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074428614] [2020-10-15 22:20:04,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822245455] [2020-10-15 22:20:04,153 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 22:20:04,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:04,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:20:04,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:04,256 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 22:20:04,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:04,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:20:04,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355147110] [2020-10-15 22:20:04,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:20:04,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:04,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:20:04,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:20:04,258 INFO L87 Difference]: Start difference. First operand 9115 states and 41679 transitions. Second operand 9 states. [2020-10-15 22:20:04,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:04,563 INFO L93 Difference]: Finished difference Result 21396 states and 87360 transitions. [2020-10-15 22:20:04,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:20:04,563 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-15 22:20:04,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:04,608 INFO L225 Difference]: With dead ends: 21396 [2020-10-15 22:20:04,608 INFO L226 Difference]: Without dead ends: 21359 [2020-10-15 22:20:04,609 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 22:20:04,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21359 states. [2020-10-15 22:20:05,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21359 to 9320. [2020-10-15 22:20:05,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9320 states. [2020-10-15 22:20:05,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9320 states to 9320 states and 42648 transitions. [2020-10-15 22:20:05,075 INFO L78 Accepts]: Start accepts. Automaton has 9320 states and 42648 transitions. Word has length 23 [2020-10-15 22:20:05,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:05,075 INFO L481 AbstractCegarLoop]: Abstraction has 9320 states and 42648 transitions. [2020-10-15 22:20:05,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:20:05,075 INFO L276 IsEmpty]: Start isEmpty. Operand 9320 states and 42648 transitions. [2020-10-15 22:20:05,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 22:20:05,078 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:05,078 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:05,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2020-10-15 22:20:05,285 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 22:20:05,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:05,285 INFO L82 PathProgramCache]: Analyzing trace with hash -150456492, now seen corresponding path program 2 times [2020-10-15 22:20:05,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:05,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314391179] [2020-10-15 22:20:05,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:05,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:05,317 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 22:20:05,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314391179] [2020-10-15 22:20:05,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:05,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:20:05,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772258706] [2020-10-15 22:20:05,318 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:20:05,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:05,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:20:05,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:20:05,319 INFO L87 Difference]: Start difference. First operand 9320 states and 42648 transitions. Second operand 7 states. [2020-10-15 22:20:05,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:05,600 INFO L93 Difference]: Finished difference Result 21489 states and 87752 transitions. [2020-10-15 22:20:05,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:20:05,601 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-15 22:20:05,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:05,648 INFO L225 Difference]: With dead ends: 21489 [2020-10-15 22:20:05,649 INFO L226 Difference]: Without dead ends: 21452 [2020-10-15 22:20:05,649 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 22:20:05,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21452 states. [2020-10-15 22:20:05,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21452 to 9401. [2020-10-15 22:20:05,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9401 states. [2020-10-15 22:20:05,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9401 states to 9401 states and 43010 transitions. [2020-10-15 22:20:05,975 INFO L78 Accepts]: Start accepts. Automaton has 9401 states and 43010 transitions. Word has length 23 [2020-10-15 22:20:05,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:05,975 INFO L481 AbstractCegarLoop]: Abstraction has 9401 states and 43010 transitions. [2020-10-15 22:20:05,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:20:05,976 INFO L276 IsEmpty]: Start isEmpty. Operand 9401 states and 43010 transitions. [2020-10-15 22:20:05,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 22:20:05,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:05,978 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:05,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2020-10-15 22:20:05,979 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 22:20:05,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:05,979 INFO L82 PathProgramCache]: Analyzing trace with hash -150471558, now seen corresponding path program 2 times [2020-10-15 22:20:05,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:05,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728709540] [2020-10-15 22:20:05,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:06,019 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 22:20:06,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728709540] [2020-10-15 22:20:06,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:06,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:20:06,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572154401] [2020-10-15 22:20:06,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:20:06,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:06,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:20:06,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:20:06,020 INFO L87 Difference]: Start difference. First operand 9401 states and 43010 transitions. Second operand 7 states. [2020-10-15 22:20:06,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:06,279 INFO L93 Difference]: Finished difference Result 21218 states and 86469 transitions. [2020-10-15 22:20:06,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:20:06,279 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-15 22:20:06,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:06,326 INFO L225 Difference]: With dead ends: 21218 [2020-10-15 22:20:06,326 INFO L226 Difference]: Without dead ends: 21181 [2020-10-15 22:20:06,326 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 22:20:06,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21181 states. [2020-10-15 22:20:06,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21181 to 9396. [2020-10-15 22:20:06,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9396 states. [2020-10-15 22:20:06,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9396 states to 9396 states and 42985 transitions. [2020-10-15 22:20:06,658 INFO L78 Accepts]: Start accepts. Automaton has 9396 states and 42985 transitions. Word has length 23 [2020-10-15 22:20:06,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:06,658 INFO L481 AbstractCegarLoop]: Abstraction has 9396 states and 42985 transitions. [2020-10-15 22:20:06,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:20:06,658 INFO L276 IsEmpty]: Start isEmpty. Operand 9396 states and 42985 transitions. [2020-10-15 22:20:06,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 22:20:06,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:06,660 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:06,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2020-10-15 22:20:06,661 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 22:20:06,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:06,661 INFO L82 PathProgramCache]: Analyzing trace with hash -150449920, now seen corresponding path program 2 times [2020-10-15 22:20:06,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:06,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197547913] [2020-10-15 22:20:06,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:06,700 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 22:20:06,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197547913] [2020-10-15 22:20:06,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:06,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:20:06,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616259064] [2020-10-15 22:20:06,701 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:20:06,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:06,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:20:06,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:20:06,702 INFO L87 Difference]: Start difference. First operand 9396 states and 42985 transitions. Second operand 7 states. [2020-10-15 22:20:06,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:06,985 INFO L93 Difference]: Finished difference Result 21047 states and 85702 transitions. [2020-10-15 22:20:06,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:20:06,985 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-15 22:20:06,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:07,037 INFO L225 Difference]: With dead ends: 21047 [2020-10-15 22:20:07,037 INFO L226 Difference]: Without dead ends: 21010 [2020-10-15 22:20:07,037 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 22:20:07,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21010 states. [2020-10-15 22:20:07,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21010 to 9426. [2020-10-15 22:20:07,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9426 states. [2020-10-15 22:20:07,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9426 states to 9426 states and 43057 transitions. [2020-10-15 22:20:07,368 INFO L78 Accepts]: Start accepts. Automaton has 9426 states and 43057 transitions. Word has length 23 [2020-10-15 22:20:07,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:07,368 INFO L481 AbstractCegarLoop]: Abstraction has 9426 states and 43057 transitions. [2020-10-15 22:20:07,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:20:07,369 INFO L276 IsEmpty]: Start isEmpty. Operand 9426 states and 43057 transitions. [2020-10-15 22:20:07,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:07,371 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:07,372 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 22:20:07,372 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2020-10-15 22:20:07,372 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 22:20:07,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:07,372 INFO L82 PathProgramCache]: Analyzing trace with hash -156736363, now seen corresponding path program 1 times [2020-10-15 22:20:07,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:07,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571233406] [2020-10-15 22:20:07,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:07,430 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 22:20:07,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571233406] [2020-10-15 22:20:07,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056340538] [2020-10-15 22:20:07,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 22:20:07,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:07,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:20:07,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:07,529 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 22:20:07,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:07,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:20:07,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165244528] [2020-10-15 22:20:07,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:20:07,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:07,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:20:07,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:20:07,531 INFO L87 Difference]: Start difference. First operand 9426 states and 43057 transitions. Second operand 11 states. [2020-10-15 22:20:08,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:08,367 INFO L93 Difference]: Finished difference Result 30145 states and 115754 transitions. [2020-10-15 22:20:08,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:08,367 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:20:08,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:08,431 INFO L225 Difference]: With dead ends: 30145 [2020-10-15 22:20:08,431 INFO L226 Difference]: Without dead ends: 30125 [2020-10-15 22:20:08,432 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 22:20:08,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30125 states. [2020-10-15 22:20:08,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30125 to 9338. [2020-10-15 22:20:08,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9338 states. [2020-10-15 22:20:08,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9338 states to 9338 states and 42582 transitions. [2020-10-15 22:20:08,846 INFO L78 Accepts]: Start accepts. Automaton has 9338 states and 42582 transitions. Word has length 25 [2020-10-15 22:20:08,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:08,846 INFO L481 AbstractCegarLoop]: Abstraction has 9338 states and 42582 transitions. [2020-10-15 22:20:08,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:20:08,846 INFO L276 IsEmpty]: Start isEmpty. Operand 9338 states and 42582 transitions. [2020-10-15 22:20:08,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:08,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:08,849 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 22:20:09,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2020-10-15 22:20:09,050 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 22:20:09,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:09,051 INFO L82 PathProgramCache]: Analyzing trace with hash -558170603, now seen corresponding path program 1 times [2020-10-15 22:20:09,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:09,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152750921] [2020-10-15 22:20:09,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:09,100 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 22:20:09,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152750921] [2020-10-15 22:20:09,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242951151] [2020-10-15 22:20:09,101 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 22:20:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:09,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:20:09,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:09,204 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 22:20:09,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:09,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:20:09,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997402861] [2020-10-15 22:20:09,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:20:09,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:09,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:20:09,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:20:09,205 INFO L87 Difference]: Start difference. First operand 9338 states and 42582 transitions. Second operand 11 states. [2020-10-15 22:20:09,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:09,898 INFO L93 Difference]: Finished difference Result 29696 states and 113916 transitions. [2020-10-15 22:20:09,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:09,898 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:20:09,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:09,966 INFO L225 Difference]: With dead ends: 29696 [2020-10-15 22:20:09,966 INFO L226 Difference]: Without dead ends: 29676 [2020-10-15 22:20:09,966 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 22:20:10,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29676 states. [2020-10-15 22:20:10,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29676 to 9291. [2020-10-15 22:20:10,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9291 states. [2020-10-15 22:20:10,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9291 states to 9291 states and 42295 transitions. [2020-10-15 22:20:10,379 INFO L78 Accepts]: Start accepts. Automaton has 9291 states and 42295 transitions. Word has length 25 [2020-10-15 22:20:10,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:10,379 INFO L481 AbstractCegarLoop]: Abstraction has 9291 states and 42295 transitions. [2020-10-15 22:20:10,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:20:10,379 INFO L276 IsEmpty]: Start isEmpty. Operand 9291 states and 42295 transitions. [2020-10-15 22:20:10,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:10,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:10,382 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 22:20:10,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2020-10-15 22:20:10,583 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 22:20:10,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:10,583 INFO L82 PathProgramCache]: Analyzing trace with hash -379966665, now seen corresponding path program 2 times [2020-10-15 22:20:10,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:10,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732159493] [2020-10-15 22:20:10,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:10,639 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 22:20:10,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732159493] [2020-10-15 22:20:10,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119660879] [2020-10-15 22:20:10,641 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 22:20:10,715 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:20:10,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:20:10,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:20:10,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:10,735 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 22:20:10,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:10,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:20:10,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138368982] [2020-10-15 22:20:10,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:20:10,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:10,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:20:10,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:20:10,737 INFO L87 Difference]: Start difference. First operand 9291 states and 42295 transitions. Second operand 11 states. [2020-10-15 22:20:11,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:11,408 INFO L93 Difference]: Finished difference Result 29267 states and 112142 transitions. [2020-10-15 22:20:11,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:11,408 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:20:11,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:11,472 INFO L225 Difference]: With dead ends: 29267 [2020-10-15 22:20:11,473 INFO L226 Difference]: Without dead ends: 29245 [2020-10-15 22:20:11,473 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 22:20:11,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29245 states. [2020-10-15 22:20:11,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29245 to 9288. [2020-10-15 22:20:11,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9288 states. [2020-10-15 22:20:12,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9288 states to 9288 states and 42242 transitions. [2020-10-15 22:20:12,107 INFO L78 Accepts]: Start accepts. Automaton has 9288 states and 42242 transitions. Word has length 25 [2020-10-15 22:20:12,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:12,107 INFO L481 AbstractCegarLoop]: Abstraction has 9288 states and 42242 transitions. [2020-10-15 22:20:12,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:20:12,107 INFO L276 IsEmpty]: Start isEmpty. Operand 9288 states and 42242 transitions. [2020-10-15 22:20:12,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:12,110 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:12,110 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 22:20:12,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2020-10-15 22:20:12,311 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 22:20:12,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:12,311 INFO L82 PathProgramCache]: Analyzing trace with hash -379945027, now seen corresponding path program 2 times [2020-10-15 22:20:12,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:12,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373156852] [2020-10-15 22:20:12,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:12,363 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 22:20:12,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373156852] [2020-10-15 22:20:12,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263879905] [2020-10-15 22:20:12,364 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 22:20:12,440 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:20:12,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:20:12,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:20:12,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:12,461 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 22:20:12,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:12,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:20:12,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134476080] [2020-10-15 22:20:12,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:20:12,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:12,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:20:12,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:20:12,463 INFO L87 Difference]: Start difference. First operand 9288 states and 42242 transitions. Second operand 11 states. [2020-10-15 22:20:13,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:13,155 INFO L93 Difference]: Finished difference Result 28920 states and 110796 transitions. [2020-10-15 22:20:13,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:13,156 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:20:13,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:13,222 INFO L225 Difference]: With dead ends: 28920 [2020-10-15 22:20:13,223 INFO L226 Difference]: Without dead ends: 28898 [2020-10-15 22:20:13,223 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 22:20:13,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28898 states. [2020-10-15 22:20:13,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28898 to 9176. [2020-10-15 22:20:13,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9176 states. [2020-10-15 22:20:13,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9176 states to 9176 states and 41695 transitions. [2020-10-15 22:20:13,650 INFO L78 Accepts]: Start accepts. Automaton has 9176 states and 41695 transitions. Word has length 25 [2020-10-15 22:20:13,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:13,650 INFO L481 AbstractCegarLoop]: Abstraction has 9176 states and 41695 transitions. [2020-10-15 22:20:13,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:20:13,650 INFO L276 IsEmpty]: Start isEmpty. Operand 9176 states and 41695 transitions. [2020-10-15 22:20:13,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:13,653 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:13,653 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 22:20:13,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:13,854 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 22:20:13,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:13,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1211690581, now seen corresponding path program 3 times [2020-10-15 22:20:13,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:13,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721157023] [2020-10-15 22:20:13,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:13,900 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 22:20:13,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721157023] [2020-10-15 22:20:13,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959372462] [2020-10-15 22:20:13,901 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 22:20:13,978 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-15 22:20:13,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:20:13,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:20:13,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:14,001 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 22:20:14,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:14,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:20:14,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754151019] [2020-10-15 22:20:14,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:20:14,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:14,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:20:14,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:20:14,003 INFO L87 Difference]: Start difference. First operand 9176 states and 41695 transitions. Second operand 11 states. [2020-10-15 22:20:14,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:14,646 INFO L93 Difference]: Finished difference Result 29038 states and 111216 transitions. [2020-10-15 22:20:14,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:14,646 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:20:14,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:14,709 INFO L225 Difference]: With dead ends: 29038 [2020-10-15 22:20:14,709 INFO L226 Difference]: Without dead ends: 29018 [2020-10-15 22:20:14,709 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 22:20:14,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29018 states. [2020-10-15 22:20:15,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29018 to 9000. [2020-10-15 22:20:15,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9000 states. [2020-10-15 22:20:15,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 40897 transitions. [2020-10-15 22:20:15,134 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 40897 transitions. Word has length 25 [2020-10-15 22:20:15,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:15,134 INFO L481 AbstractCegarLoop]: Abstraction has 9000 states and 40897 transitions. [2020-10-15 22:20:15,134 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:20:15,134 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 40897 transitions. [2020-10-15 22:20:15,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:15,137 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:15,137 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 22:20:15,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2020-10-15 22:20:15,338 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 22:20:15,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:15,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1201691221, now seen corresponding path program 4 times [2020-10-15 22:20:15,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:15,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363245025] [2020-10-15 22:20:15,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:15,388 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 22:20:15,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363245025] [2020-10-15 22:20:15,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685509715] [2020-10-15 22:20:15,389 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 22:20:15,470 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 22:20:15,471 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:20:15,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:20:15,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:15,492 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 22:20:15,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:15,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:20:15,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843183933] [2020-10-15 22:20:15,493 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:20:15,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:15,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:20:15,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:20:15,494 INFO L87 Difference]: Start difference. First operand 9000 states and 40897 transitions. Second operand 11 states. [2020-10-15 22:20:16,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:16,184 INFO L93 Difference]: Finished difference Result 29283 states and 112236 transitions. [2020-10-15 22:20:16,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:16,185 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:20:16,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:16,244 INFO L225 Difference]: With dead ends: 29283 [2020-10-15 22:20:16,244 INFO L226 Difference]: Without dead ends: 29261 [2020-10-15 22:20:16,245 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 22:20:16,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29261 states. [2020-10-15 22:20:16,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29261 to 8997. [2020-10-15 22:20:16,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8997 states. [2020-10-15 22:20:16,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8997 states to 8997 states and 40842 transitions. [2020-10-15 22:20:16,668 INFO L78 Accepts]: Start accepts. Automaton has 8997 states and 40842 transitions. Word has length 25 [2020-10-15 22:20:16,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:16,668 INFO L481 AbstractCegarLoop]: Abstraction has 8997 states and 40842 transitions. [2020-10-15 22:20:16,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:20:16,669 INFO L276 IsEmpty]: Start isEmpty. Operand 8997 states and 40842 transitions. [2020-10-15 22:20:16,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:16,672 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:16,672 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 22:20:16,872 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:16,872 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 22:20:16,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:16,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1201697793, now seen corresponding path program 1 times [2020-10-15 22:20:16,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:16,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677895874] [2020-10-15 22:20:16,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:17,052 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 22:20:17,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677895874] [2020-10-15 22:20:17,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021089880] [2020-10-15 22:20:17,053 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 22:20:17,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:17,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:20:17,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:17,147 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 22:20:17,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:17,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:20:17,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374878847] [2020-10-15 22:20:17,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:20:17,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:17,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:20:17,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:20:17,148 INFO L87 Difference]: Start difference. First operand 8997 states and 40842 transitions. Second operand 11 states. [2020-10-15 22:20:17,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:17,880 INFO L93 Difference]: Finished difference Result 29105 states and 111801 transitions. [2020-10-15 22:20:17,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:17,881 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:20:17,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:17,948 INFO L225 Difference]: With dead ends: 29105 [2020-10-15 22:20:17,948 INFO L226 Difference]: Without dead ends: 29085 [2020-10-15 22:20:17,948 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 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 22:20:18,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29085 states. [2020-10-15 22:20:18,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29085 to 8955. [2020-10-15 22:20:18,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8955 states. [2020-10-15 22:20:18,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8955 states to 8955 states and 40593 transitions. [2020-10-15 22:20:18,350 INFO L78 Accepts]: Start accepts. Automaton has 8955 states and 40593 transitions. Word has length 25 [2020-10-15 22:20:18,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:18,350 INFO L481 AbstractCegarLoop]: Abstraction has 8955 states and 40593 transitions. [2020-10-15 22:20:18,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:20:18,351 INFO L276 IsEmpty]: Start isEmpty. Operand 8955 states and 40593 transitions. [2020-10-15 22:20:18,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:18,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:18,354 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 22:20:18,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2020-10-15 22:20:18,555 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 22:20:18,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:18,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1218006273, now seen corresponding path program 2 times [2020-10-15 22:20:18,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:18,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161171226] [2020-10-15 22:20:18,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:18,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:18,605 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 22:20:18,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161171226] [2020-10-15 22:20:18,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918134228] [2020-10-15 22:20:18,606 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 22:20:18,691 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:20:18,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:20:18,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:20:18,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:18,729 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 22:20:18,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:18,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:20:18,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699389544] [2020-10-15 22:20:18,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:20:18,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:18,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:20:18,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:20:18,731 INFO L87 Difference]: Start difference. First operand 8955 states and 40593 transitions. Second operand 11 states. [2020-10-15 22:20:19,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:19,729 INFO L93 Difference]: Finished difference Result 28806 states and 110558 transitions. [2020-10-15 22:20:19,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:19,730 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:20:19,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:19,833 INFO L225 Difference]: With dead ends: 28806 [2020-10-15 22:20:19,833 INFO L226 Difference]: Without dead ends: 28779 [2020-10-15 22:20:19,834 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 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 22:20:20,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28779 states. [2020-10-15 22:20:20,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28779 to 8841. [2020-10-15 22:20:20,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8841 states. [2020-10-15 22:20:20,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8841 states to 8841 states and 40062 transitions. [2020-10-15 22:20:20,359 INFO L78 Accepts]: Start accepts. Automaton has 8841 states and 40062 transitions. Word has length 25 [2020-10-15 22:20:20,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:20,359 INFO L481 AbstractCegarLoop]: Abstraction has 8841 states and 40062 transitions. [2020-10-15 22:20:20,359 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:20:20,360 INFO L276 IsEmpty]: Start isEmpty. Operand 8841 states and 40062 transitions. [2020-10-15 22:20:20,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:20,363 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:20,363 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 22:20:20,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:20,564 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 22:20:20,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:20,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1980442581, now seen corresponding path program 3 times [2020-10-15 22:20:20,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:20,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792150139] [2020-10-15 22:20:20,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:20,614 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 22:20:20,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792150139] [2020-10-15 22:20:20,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686267730] [2020-10-15 22:20:20,615 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 22:20:20,687 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-15 22:20:20,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:20:20,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:20:20,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:20,707 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 22:20:20,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:20,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:20:20,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082389781] [2020-10-15 22:20:20,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:20:20,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:20,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:20:20,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:20:20,709 INFO L87 Difference]: Start difference. First operand 8841 states and 40062 transitions. Second operand 11 states. [2020-10-15 22:20:21,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:21,416 INFO L93 Difference]: Finished difference Result 28636 states and 109852 transitions. [2020-10-15 22:20:21,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:21,417 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:20:21,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:21,478 INFO L225 Difference]: With dead ends: 28636 [2020-10-15 22:20:21,478 INFO L226 Difference]: Without dead ends: 28616 [2020-10-15 22:20:21,478 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 22:20:21,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28616 states. [2020-10-15 22:20:21,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28616 to 8702. [2020-10-15 22:20:21,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8702 states. [2020-10-15 22:20:21,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8702 states to 8702 states and 39438 transitions. [2020-10-15 22:20:21,880 INFO L78 Accepts]: Start accepts. Automaton has 8702 states and 39438 transitions. Word has length 25 [2020-10-15 22:20:21,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:21,881 INFO L481 AbstractCegarLoop]: Abstraction has 8702 states and 39438 transitions. [2020-10-15 22:20:21,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:20:21,881 INFO L276 IsEmpty]: Start isEmpty. Operand 8702 states and 39438 transitions. [2020-10-15 22:20:21,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:21,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:21,884 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 22:20:22,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2020-10-15 22:20:22,085 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 22:20:22,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:22,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1965964155, now seen corresponding path program 3 times [2020-10-15 22:20:22,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:22,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781848133] [2020-10-15 22:20:22,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:22,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:22,134 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 22:20:22,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781848133] [2020-10-15 22:20:22,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382321407] [2020-10-15 22:20:22,134 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 22:20:22,329 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-15 22:20:22,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:20:22,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:20:22,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:22,353 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 22:20:22,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:22,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:20:22,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227077074] [2020-10-15 22:20:22,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:20:22,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:22,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:20:22,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:20:22,356 INFO L87 Difference]: Start difference. First operand 8702 states and 39438 transitions. Second operand 11 states. [2020-10-15 22:20:23,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:23,024 INFO L93 Difference]: Finished difference Result 28297 states and 108461 transitions. [2020-10-15 22:20:23,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:23,024 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:20:23,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:23,087 INFO L225 Difference]: With dead ends: 28297 [2020-10-15 22:20:23,087 INFO L226 Difference]: Without dead ends: 28277 [2020-10-15 22:20:23,088 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 22:20:23,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28277 states. [2020-10-15 22:20:23,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28277 to 8596. [2020-10-15 22:20:23,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8596 states. [2020-10-15 22:20:23,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8596 states to 8596 states and 38978 transitions. [2020-10-15 22:20:23,476 INFO L78 Accepts]: Start accepts. Automaton has 8596 states and 38978 transitions. Word has length 25 [2020-10-15 22:20:23,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:23,477 INFO L481 AbstractCegarLoop]: Abstraction has 8596 states and 38978 transitions. [2020-10-15 22:20:23,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:20:23,477 INFO L276 IsEmpty]: Start isEmpty. Operand 8596 states and 38978 transitions. [2020-10-15 22:20:23,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:23,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:23,479 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 22:20:23,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:23,686 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 22:20:23,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:23,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1970443221, now seen corresponding path program 4 times [2020-10-15 22:20:23,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:23,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573106783] [2020-10-15 22:20:23,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:23,737 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 22:20:23,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573106783] [2020-10-15 22:20:23,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383531090] [2020-10-15 22:20:23,737 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 22:20:23,831 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 22:20:23,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:20:23,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:20:23,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:23,883 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 22:20:23,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:23,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:20:23,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173305413] [2020-10-15 22:20:23,884 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:20:23,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:23,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:20:23,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:20:23,885 INFO L87 Difference]: Start difference. First operand 8596 states and 38978 transitions. Second operand 11 states. [2020-10-15 22:20:24,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:24,563 INFO L93 Difference]: Finished difference Result 28565 states and 109596 transitions. [2020-10-15 22:20:24,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:24,563 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:20:24,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:24,633 INFO L225 Difference]: With dead ends: 28565 [2020-10-15 22:20:24,633 INFO L226 Difference]: Without dead ends: 28538 [2020-10-15 22:20:24,634 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 22:20:24,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28538 states. [2020-10-15 22:20:25,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28538 to 8563. [2020-10-15 22:20:25,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8563 states. [2020-10-15 22:20:25,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8563 states to 8563 states and 38809 transitions. [2020-10-15 22:20:25,057 INFO L78 Accepts]: Start accepts. Automaton has 8563 states and 38809 transitions. Word has length 25 [2020-10-15 22:20:25,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:25,058 INFO L481 AbstractCegarLoop]: Abstraction has 8563 states and 38809 transitions. [2020-10-15 22:20:25,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:20:25,058 INFO L276 IsEmpty]: Start isEmpty. Operand 8563 states and 38809 transitions. [2020-10-15 22:20:25,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:25,061 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:25,061 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 22:20:25,261 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2020-10-15 22:20:25,262 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 22:20:25,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:25,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1970428155, now seen corresponding path program 4 times [2020-10-15 22:20:25,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:25,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451426593] [2020-10-15 22:20:25,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:25,311 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 22:20:25,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451426593] [2020-10-15 22:20:25,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910601234] [2020-10-15 22:20:25,311 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 22:20:25,392 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 22:20:25,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:20:25,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:20:25,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:25,411 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 22:20:25,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:25,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:20:25,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166670018] [2020-10-15 22:20:25,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:20:25,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:25,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:20:25,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:20:25,413 INFO L87 Difference]: Start difference. First operand 8563 states and 38809 transitions. Second operand 11 states. [2020-10-15 22:20:26,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:26,093 INFO L93 Difference]: Finished difference Result 28213 states and 108237 transitions. [2020-10-15 22:20:26,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:26,093 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:20:26,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:26,151 INFO L225 Difference]: With dead ends: 28213 [2020-10-15 22:20:26,151 INFO L226 Difference]: Without dead ends: 28186 [2020-10-15 22:20:26,152 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 22:20:26,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28186 states. [2020-10-15 22:20:26,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28186 to 8421. [2020-10-15 22:20:26,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8421 states. [2020-10-15 22:20:26,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8421 states to 8421 states and 38146 transitions. [2020-10-15 22:20:26,517 INFO L78 Accepts]: Start accepts. Automaton has 8421 states and 38146 transitions. Word has length 25 [2020-10-15 22:20:26,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:26,517 INFO L481 AbstractCegarLoop]: Abstraction has 8421 states and 38146 transitions. [2020-10-15 22:20:26,517 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:20:26,517 INFO L276 IsEmpty]: Start isEmpty. Operand 8421 states and 38146 transitions. [2020-10-15 22:20:26,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:26,520 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:26,520 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:26,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:26,721 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 22:20:26,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:26,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1943046054, now seen corresponding path program 1 times [2020-10-15 22:20:26,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:26,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470273158] [2020-10-15 22:20:26,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:26,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:26,742 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 22:20:26,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470273158] [2020-10-15 22:20:26,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:26,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:20:26,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800369492] [2020-10-15 22:20:26,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:20:26,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:26,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:20:26,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:20:26,744 INFO L87 Difference]: Start difference. First operand 8421 states and 38146 transitions. Second operand 5 states. [2020-10-15 22:20:26,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:26,875 INFO L93 Difference]: Finished difference Result 13647 states and 59401 transitions. [2020-10-15 22:20:26,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:20:26,875 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-15 22:20:26,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:26,904 INFO L225 Difference]: With dead ends: 13647 [2020-10-15 22:20:26,905 INFO L226 Difference]: Without dead ends: 13615 [2020-10-15 22:20:26,905 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 22:20:26,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13615 states. [2020-10-15 22:20:27,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13615 to 9928. [2020-10-15 22:20:27,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9928 states. [2020-10-15 22:20:27,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9928 states to 9928 states and 44651 transitions. [2020-10-15 22:20:27,166 INFO L78 Accepts]: Start accepts. Automaton has 9928 states and 44651 transitions. Word has length 25 [2020-10-15 22:20:27,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:27,166 INFO L481 AbstractCegarLoop]: Abstraction has 9928 states and 44651 transitions. [2020-10-15 22:20:27,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:20:27,166 INFO L276 IsEmpty]: Start isEmpty. Operand 9928 states and 44651 transitions. [2020-10-15 22:20:27,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:27,170 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:27,170 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 22:20:27,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2020-10-15 22:20:27,171 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 22:20:27,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:27,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1440199159, now seen corresponding path program 5 times [2020-10-15 22:20:27,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:27,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355727915] [2020-10-15 22:20:27,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:27,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:27,227 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 22:20:27,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355727915] [2020-10-15 22:20:27,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:27,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:20:27,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169822331] [2020-10-15 22:20:27,229 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:20:27,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:27,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:20:27,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:20:27,230 INFO L87 Difference]: Start difference. First operand 9928 states and 44651 transitions. Second operand 9 states. [2020-10-15 22:20:27,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:27,958 INFO L93 Difference]: Finished difference Result 31816 states and 123346 transitions. [2020-10-15 22:20:27,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:27,959 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:20:27,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:28,023 INFO L225 Difference]: With dead ends: 31816 [2020-10-15 22:20:28,023 INFO L226 Difference]: Without dead ends: 31790 [2020-10-15 22:20:28,023 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 22:20:28,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31790 states. [2020-10-15 22:20:28,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31790 to 9766. [2020-10-15 22:20:28,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9766 states. [2020-10-15 22:20:28,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9766 states to 9766 states and 43873 transitions. [2020-10-15 22:20:28,451 INFO L78 Accepts]: Start accepts. Automaton has 9766 states and 43873 transitions. Word has length 25 [2020-10-15 22:20:28,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:28,451 INFO L481 AbstractCegarLoop]: Abstraction has 9766 states and 43873 transitions. [2020-10-15 22:20:28,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:20:28,451 INFO L276 IsEmpty]: Start isEmpty. Operand 9766 states and 43873 transitions. [2020-10-15 22:20:28,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:28,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:28,454 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 22:20:28,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2020-10-15 22:20:28,454 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 22:20:28,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:28,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1440220797, now seen corresponding path program 5 times [2020-10-15 22:20:28,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:28,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706465165] [2020-10-15 22:20:28,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:28,503 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 22:20:28,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706465165] [2020-10-15 22:20:28,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:28,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:20:28,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302376054] [2020-10-15 22:20:28,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:20:28,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:28,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:20:28,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:20:28,505 INFO L87 Difference]: Start difference. First operand 9766 states and 43873 transitions. Second operand 9 states. [2020-10-15 22:20:29,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:29,138 INFO L93 Difference]: Finished difference Result 31277 states and 121098 transitions. [2020-10-15 22:20:29,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:29,139 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:20:29,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:29,206 INFO L225 Difference]: With dead ends: 31277 [2020-10-15 22:20:29,206 INFO L226 Difference]: Without dead ends: 31251 [2020-10-15 22:20:29,206 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 22:20:29,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31251 states. [2020-10-15 22:20:29,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31251 to 9592. [2020-10-15 22:20:29,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9592 states. [2020-10-15 22:20:29,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9592 states to 9592 states and 43051 transitions. [2020-10-15 22:20:29,636 INFO L78 Accepts]: Start accepts. Automaton has 9592 states and 43051 transitions. Word has length 25 [2020-10-15 22:20:29,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:29,636 INFO L481 AbstractCegarLoop]: Abstraction has 9592 states and 43051 transitions. [2020-10-15 22:20:29,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:20:29,636 INFO L276 IsEmpty]: Start isEmpty. Operand 9592 states and 43051 transitions. [2020-10-15 22:20:29,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:29,640 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:29,640 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 22:20:29,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2020-10-15 22:20:29,640 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 22:20:29,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:29,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1425735799, now seen corresponding path program 6 times [2020-10-15 22:20:29,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:29,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372101821] [2020-10-15 22:20:29,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:29,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:29,694 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 22:20:29,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372101821] [2020-10-15 22:20:29,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:29,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:20:29,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958732047] [2020-10-15 22:20:29,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:20:29,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:29,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:20:29,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:20:29,696 INFO L87 Difference]: Start difference. First operand 9592 states and 43051 transitions. Second operand 9 states. [2020-10-15 22:20:30,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:30,382 INFO L93 Difference]: Finished difference Result 30952 states and 119650 transitions. [2020-10-15 22:20:30,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:30,382 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:20:30,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:30,446 INFO L225 Difference]: With dead ends: 30952 [2020-10-15 22:20:30,446 INFO L226 Difference]: Without dead ends: 30919 [2020-10-15 22:20:30,446 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 22:20:30,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30919 states. [2020-10-15 22:20:30,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30919 to 9246. [2020-10-15 22:20:30,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9246 states. [2020-10-15 22:20:30,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9246 states to 9246 states and 41509 transitions. [2020-10-15 22:20:30,875 INFO L78 Accepts]: Start accepts. Automaton has 9246 states and 41509 transitions. Word has length 25 [2020-10-15 22:20:30,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:30,875 INFO L481 AbstractCegarLoop]: Abstraction has 9246 states and 41509 transitions. [2020-10-15 22:20:30,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:20:30,875 INFO L276 IsEmpty]: Start isEmpty. Operand 9246 states and 41509 transitions. [2020-10-15 22:20:30,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:30,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:30,878 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 22:20:30,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2020-10-15 22:20:30,878 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 22:20:30,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:30,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1425742371, now seen corresponding path program 5 times [2020-10-15 22:20:30,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:30,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969103265] [2020-10-15 22:20:30,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:30,930 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 22:20:30,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969103265] [2020-10-15 22:20:30,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:30,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:20:30,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961100183] [2020-10-15 22:20:30,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:20:30,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:30,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:20:30,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:20:30,932 INFO L87 Difference]: Start difference. First operand 9246 states and 41509 transitions. Second operand 9 states. [2020-10-15 22:20:31,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:31,635 INFO L93 Difference]: Finished difference Result 30541 states and 117947 transitions. [2020-10-15 22:20:31,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:31,636 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:20:31,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:31,699 INFO L225 Difference]: With dead ends: 30541 [2020-10-15 22:20:31,699 INFO L226 Difference]: Without dead ends: 30515 [2020-10-15 22:20:31,700 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 22:20:31,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30515 states. [2020-10-15 22:20:32,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30515 to 9136. [2020-10-15 22:20:32,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9136 states. [2020-10-15 22:20:32,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9136 states to 9136 states and 40999 transitions. [2020-10-15 22:20:32,117 INFO L78 Accepts]: Start accepts. Automaton has 9136 states and 40999 transitions. Word has length 25 [2020-10-15 22:20:32,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:32,118 INFO L481 AbstractCegarLoop]: Abstraction has 9136 states and 40999 transitions. [2020-10-15 22:20:32,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:20:32,118 INFO L276 IsEmpty]: Start isEmpty. Operand 9136 states and 40999 transitions. [2020-10-15 22:20:32,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:32,120 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:32,120 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 22:20:32,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2020-10-15 22:20:32,121 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 22:20:32,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:32,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1446529917, now seen corresponding path program 6 times [2020-10-15 22:20:32,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:32,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923974864] [2020-10-15 22:20:32,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:32,182 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 22:20:32,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923974864] [2020-10-15 22:20:32,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:32,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:20:32,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987035206] [2020-10-15 22:20:32,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:20:32,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:32,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:20:32,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:20:32,184 INFO L87 Difference]: Start difference. First operand 9136 states and 40999 transitions. Second operand 9 states. [2020-10-15 22:20:33,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:33,110 INFO L93 Difference]: Finished difference Result 30263 states and 116773 transitions. [2020-10-15 22:20:33,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:33,111 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:20:33,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:33,177 INFO L225 Difference]: With dead ends: 30263 [2020-10-15 22:20:33,177 INFO L226 Difference]: Without dead ends: 30230 [2020-10-15 22:20:33,178 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 22:20:33,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30230 states. [2020-10-15 22:20:33,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30230 to 8877. [2020-10-15 22:20:33,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8877 states. [2020-10-15 22:20:33,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 39872 transitions. [2020-10-15 22:20:33,593 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 39872 transitions. Word has length 25 [2020-10-15 22:20:33,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:33,593 INFO L481 AbstractCegarLoop]: Abstraction has 8877 states and 39872 transitions. [2020-10-15 22:20:33,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:20:33,593 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 39872 transitions. [2020-10-15 22:20:33,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:33,596 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:33,596 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 22:20:33,596 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2020-10-15 22:20:33,596 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 22:20:33,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:33,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1446514851, now seen corresponding path program 6 times [2020-10-15 22:20:33,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:33,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896573971] [2020-10-15 22:20:33,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:33,646 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 22:20:33,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896573971] [2020-10-15 22:20:33,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:33,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:20:33,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699886049] [2020-10-15 22:20:33,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:20:33,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:33,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:20:33,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:20:33,648 INFO L87 Difference]: Start difference. First operand 8877 states and 39872 transitions. Second operand 9 states. [2020-10-15 22:20:34,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:34,335 INFO L93 Difference]: Finished difference Result 29856 states and 115140 transitions. [2020-10-15 22:20:34,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:34,336 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:20:34,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:34,409 INFO L225 Difference]: With dead ends: 29856 [2020-10-15 22:20:34,409 INFO L226 Difference]: Without dead ends: 29823 [2020-10-15 22:20:34,410 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 22:20:34,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29823 states. [2020-10-15 22:20:34,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29823 to 8560. [2020-10-15 22:20:34,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8560 states. [2020-10-15 22:20:34,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 38495 transitions. [2020-10-15 22:20:34,856 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 38495 transitions. Word has length 25 [2020-10-15 22:20:34,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:34,856 INFO L481 AbstractCegarLoop]: Abstraction has 8560 states and 38495 transitions. [2020-10-15 22:20:34,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:20:34,856 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 38495 transitions. [2020-10-15 22:20:34,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-15 22:20:34,860 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:34,860 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:34,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2020-10-15 22:20:34,860 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 22:20:34,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:34,860 INFO L82 PathProgramCache]: Analyzing trace with hash -110415564, now seen corresponding path program 1 times [2020-10-15 22:20:34,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:34,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557810780] [2020-10-15 22:20:34,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:34,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:20:34,868 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:20:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:20:34,884 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:20:34,896 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 22:20:34,896 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 22:20:34,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2020-10-15 22:20:34,897 WARN L371 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 22:20:34,897 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2020-10-15 22:20:34,916 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,916 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,916 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,916 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,917 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,917 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,917 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,918 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,918 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,918 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,918 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,918 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,918 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,918 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,919 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,919 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,919 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,919 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,919 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,919 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,919 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,919 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,919 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,919 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,919 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,920 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,920 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,920 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,920 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,920 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,920 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,920 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,921 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,921 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,921 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,921 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,921 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,921 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,921 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,922 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,922 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,922 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,922 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,922 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,922 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,922 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,922 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,923 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,923 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,923 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,923 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,923 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,923 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,923 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,924 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,924 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,924 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,924 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,925 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,925 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,925 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,925 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,925 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,925 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,925 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,925 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,926 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,926 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,926 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,926 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,926 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,926 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,926 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,927 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,927 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,927 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,927 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,927 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,928 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,928 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,928 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,928 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,928 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,928 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,928 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,929 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,929 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,929 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,929 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,929 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,929 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,929 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,930 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,930 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,930 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,930 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,930 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,930 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,930 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,930 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,930 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,930 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,930 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,930 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,931 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,931 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,931 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,931 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,931 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,931 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,931 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,931 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,931 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,931 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,931 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,931 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,932 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,932 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,932 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,932 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,932 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,932 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,932 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,933 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,933 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,933 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,933 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,935 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,936 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,936 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,936 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,936 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,940 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,941 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,941 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,941 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,941 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,944 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,944 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,945 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,945 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,945 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,946 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,946 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,946 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,946 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,946 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,947 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,947 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,948 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,948 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,948 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,948 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,949 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,949 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,949 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,949 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,949 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,950 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,950 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,950 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,950 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,951 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,951 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,952 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,952 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,953 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,953 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,953 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,953 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,954 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,954 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,954 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,954 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,954 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,954 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,955 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,955 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,955 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,955 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,956 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,956 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,956 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,956 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,956 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,957 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,957 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,957 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,958 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-10-15 22:20:34,958 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:20:34,958 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:20:34,958 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:20:34,958 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:20:34,958 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:20:34,958 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:20:34,959 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:20:34,959 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:20:34,961 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:20:34,961 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 160 places, 141 transitions, 402 flow [2020-10-15 22:20:34,961 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 160 places, 141 transitions, 402 flow [2020-10-15 22:20:34,962 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 160 places, 141 transitions, 402 flow [2020-10-15 22:20:34,984 INFO L129 PetriNetUnfolder]: 8/171 cut-off events. [2020-10-15 22:20:34,984 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-10-15 22:20:34,986 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 22:20:34,993 INFO L117 LiptonReduction]: Number of co-enabled transitions 3612 [2020-10-15 22:20:36,799 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-15 22:20:37,073 INFO L132 LiptonReduction]: Checked pairs total: 5372 [2020-10-15 22:20:37,073 INFO L134 LiptonReduction]: Total number of compositions: 134 [2020-10-15 22:20:37,073 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71 places, 45 transitions, 210 flow [2020-10-15 22:20:38,733 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 18584 states. [2020-10-15 22:20:38,733 INFO L276 IsEmpty]: Start isEmpty. Operand 18584 states. [2020-10-15 22:20:38,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-15 22:20:38,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:38,733 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-15 22:20:38,734 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 22:20:38,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:38,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1291919, now seen corresponding path program 1 times [2020-10-15 22:20:38,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:38,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105859694] [2020-10-15 22:20:38,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:38,742 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 22:20:38,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105859694] [2020-10-15 22:20:38,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:38,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:20:38,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272124294] [2020-10-15 22:20:38,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:20:38,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:38,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:20:38,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:20:38,743 INFO L87 Difference]: Start difference. First operand 18584 states. Second operand 3 states. [2020-10-15 22:20:38,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:38,897 INFO L93 Difference]: Finished difference Result 17885 states and 92755 transitions. [2020-10-15 22:20:38,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:20:38,898 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-15 22:20:38,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:38,950 INFO L225 Difference]: With dead ends: 17885 [2020-10-15 22:20:38,950 INFO L226 Difference]: Without dead ends: 16791 [2020-10-15 22:20:38,950 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 22:20:39,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16791 states. [2020-10-15 22:20:39,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16791 to 16791. [2020-10-15 22:20:39,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16791 states. [2020-10-15 22:20:39,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16791 states to 16791 states and 86558 transitions. [2020-10-15 22:20:39,944 INFO L78 Accepts]: Start accepts. Automaton has 16791 states and 86558 transitions. Word has length 3 [2020-10-15 22:20:39,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:39,944 INFO L481 AbstractCegarLoop]: Abstraction has 16791 states and 86558 transitions. [2020-10-15 22:20:39,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:20:39,944 INFO L276 IsEmpty]: Start isEmpty. Operand 16791 states and 86558 transitions. [2020-10-15 22:20:39,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 22:20:39,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:39,945 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:39,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2020-10-15 22:20:39,945 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 22:20:39,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:39,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1124534846, now seen corresponding path program 1 times [2020-10-15 22:20:39,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:39,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588370194] [2020-10-15 22:20:39,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:39,960 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 22:20:39,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588370194] [2020-10-15 22:20:39,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:39,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:20:39,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714812172] [2020-10-15 22:20:39,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:20:39,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:39,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:20:39,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:20:39,962 INFO L87 Difference]: Start difference. First operand 16791 states and 86558 transitions. Second operand 5 states. [2020-10-15 22:20:40,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:40,186 INFO L93 Difference]: Finished difference Result 30985 states and 150574 transitions. [2020-10-15 22:20:40,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:20:40,187 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-15 22:20:40,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:40,270 INFO L225 Difference]: With dead ends: 30985 [2020-10-15 22:20:40,270 INFO L226 Difference]: Without dead ends: 30977 [2020-10-15 22:20:40,270 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 22:20:40,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30977 states. [2020-10-15 22:20:41,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30977 to 19868. [2020-10-15 22:20:41,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19868 states. [2020-10-15 22:20:41,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19868 states to 19868 states and 103363 transitions. [2020-10-15 22:20:41,206 INFO L78 Accepts]: Start accepts. Automaton has 19868 states and 103363 transitions. Word has length 9 [2020-10-15 22:20:41,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:41,206 INFO L481 AbstractCegarLoop]: Abstraction has 19868 states and 103363 transitions. [2020-10-15 22:20:41,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:20:41,206 INFO L276 IsEmpty]: Start isEmpty. Operand 19868 states and 103363 transitions. [2020-10-15 22:20:41,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:20:41,206 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:41,207 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:41,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2020-10-15 22:20:41,207 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 22:20:41,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:41,207 INFO L82 PathProgramCache]: Analyzing trace with hash -696216523, now seen corresponding path program 1 times [2020-10-15 22:20:41,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:41,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251777221] [2020-10-15 22:20:41,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:41,224 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 22:20:41,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251777221] [2020-10-15 22:20:41,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:41,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:20:41,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276601431] [2020-10-15 22:20:41,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:20:41,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:41,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:20:41,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:20:41,226 INFO L87 Difference]: Start difference. First operand 19868 states and 103363 transitions. Second operand 5 states. [2020-10-15 22:20:41,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:41,465 INFO L93 Difference]: Finished difference Result 36296 states and 178836 transitions. [2020-10-15 22:20:41,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:20:41,465 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 22:20:41,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:41,561 INFO L225 Difference]: With dead ends: 36296 [2020-10-15 22:20:41,561 INFO L226 Difference]: Without dead ends: 36280 [2020-10-15 22:20:41,562 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 22:20:42,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36280 states. [2020-10-15 22:20:42,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36280 to 23806. [2020-10-15 22:20:42,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23806 states. [2020-10-15 22:20:42,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23806 states to 23806 states and 125455 transitions. [2020-10-15 22:20:42,639 INFO L78 Accepts]: Start accepts. Automaton has 23806 states and 125455 transitions. Word has length 13 [2020-10-15 22:20:42,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:42,639 INFO L481 AbstractCegarLoop]: Abstraction has 23806 states and 125455 transitions. [2020-10-15 22:20:42,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:20:42,639 INFO L276 IsEmpty]: Start isEmpty. Operand 23806 states and 125455 transitions. [2020-10-15 22:20:42,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:20:42,639 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:42,639 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:42,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2020-10-15 22:20:42,640 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 22:20:42,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:42,640 INFO L82 PathProgramCache]: Analyzing trace with hash -2123666531, now seen corresponding path program 1 times [2020-10-15 22:20:42,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:42,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579025000] [2020-10-15 22:20:42,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:42,668 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 22:20:42,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579025000] [2020-10-15 22:20:42,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472021462] [2020-10-15 22:20:42,669 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 22:20:42,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:42,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:20:42,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:42,768 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 22:20:42,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:42,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:20:42,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469294961] [2020-10-15 22:20:42,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:20:42,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:42,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:20:42,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:20:42,770 INFO L87 Difference]: Start difference. First operand 23806 states and 125455 transitions. Second operand 9 states. [2020-10-15 22:20:43,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:43,611 INFO L93 Difference]: Finished difference Result 56720 states and 262685 transitions. [2020-10-15 22:20:43,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:20:43,611 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-10-15 22:20:43,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:43,780 INFO L225 Difference]: With dead ends: 56720 [2020-10-15 22:20:43,780 INFO L226 Difference]: Without dead ends: 56704 [2020-10-15 22:20:43,781 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 22:20:44,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56704 states. [2020-10-15 22:20:45,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56704 to 23629. [2020-10-15 22:20:45,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23629 states. [2020-10-15 22:20:45,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23629 states to 23629 states and 124418 transitions. [2020-10-15 22:20:45,134 INFO L78 Accepts]: Start accepts. Automaton has 23629 states and 124418 transitions. Word has length 15 [2020-10-15 22:20:45,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:45,134 INFO L481 AbstractCegarLoop]: Abstraction has 23629 states and 124418 transitions. [2020-10-15 22:20:45,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:20:45,135 INFO L276 IsEmpty]: Start isEmpty. Operand 23629 states and 124418 transitions. [2020-10-15 22:20:45,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:20:45,135 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:45,135 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:45,335 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2020-10-15 22:20:45,336 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 22:20:45,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:45,336 INFO L82 PathProgramCache]: Analyzing trace with hash 950817645, now seen corresponding path program 2 times [2020-10-15 22:20:45,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:45,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063864293] [2020-10-15 22:20:45,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:45,367 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 22:20:45,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063864293] [2020-10-15 22:20:45,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:45,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:20:45,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812295214] [2020-10-15 22:20:45,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:20:45,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:45,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:20:45,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:20:45,370 INFO L87 Difference]: Start difference. First operand 23629 states and 124418 transitions. Second operand 7 states. [2020-10-15 22:20:45,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:45,860 INFO L93 Difference]: Finished difference Result 58078 states and 269185 transitions. [2020-10-15 22:20:45,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:20:45,861 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-15 22:20:45,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:46,033 INFO L225 Difference]: With dead ends: 58078 [2020-10-15 22:20:46,033 INFO L226 Difference]: Without dead ends: 58061 [2020-10-15 22:20:46,033 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 22:20:46,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58061 states. [2020-10-15 22:20:47,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58061 to 23109. [2020-10-15 22:20:47,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23109 states. [2020-10-15 22:20:47,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23109 states to 23109 states and 121651 transitions. [2020-10-15 22:20:47,444 INFO L78 Accepts]: Start accepts. Automaton has 23109 states and 121651 transitions. Word has length 15 [2020-10-15 22:20:47,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:47,444 INFO L481 AbstractCegarLoop]: Abstraction has 23109 states and 121651 transitions. [2020-10-15 22:20:47,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:20:47,444 INFO L276 IsEmpty]: Start isEmpty. Operand 23109 states and 121651 transitions. [2020-10-15 22:20:47,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 22:20:47,445 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:47,445 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:47,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2020-10-15 22:20:47,445 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 22:20:47,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:47,445 INFO L82 PathProgramCache]: Analyzing trace with hash -2120658652, now seen corresponding path program 1 times [2020-10-15 22:20:47,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:47,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840507303] [2020-10-15 22:20:47,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:47,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:47,463 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 22:20:47,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840507303] [2020-10-15 22:20:47,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:47,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:20:47,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222573329] [2020-10-15 22:20:47,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:20:47,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:47,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:20:47,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:20:47,465 INFO L87 Difference]: Start difference. First operand 23109 states and 121651 transitions. Second operand 5 states. [2020-10-15 22:20:48,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:48,148 INFO L93 Difference]: Finished difference Result 41885 states and 209629 transitions. [2020-10-15 22:20:48,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:20:48,148 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-15 22:20:48,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:48,285 INFO L225 Difference]: With dead ends: 41885 [2020-10-15 22:20:48,286 INFO L226 Difference]: Without dead ends: 41856 [2020-10-15 22:20:48,286 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 22:20:48,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41856 states. [2020-10-15 22:20:49,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41856 to 28237. [2020-10-15 22:20:49,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28237 states. [2020-10-15 22:20:49,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28237 states to 28237 states and 150261 transitions. [2020-10-15 22:20:49,528 INFO L78 Accepts]: Start accepts. Automaton has 28237 states and 150261 transitions. Word has length 17 [2020-10-15 22:20:49,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:49,528 INFO L481 AbstractCegarLoop]: Abstraction has 28237 states and 150261 transitions. [2020-10-15 22:20:49,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:20:49,528 INFO L276 IsEmpty]: Start isEmpty. Operand 28237 states and 150261 transitions. [2020-10-15 22:20:49,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:20:49,529 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:49,529 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:49,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2020-10-15 22:20:49,529 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 22:20:49,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:49,529 INFO L82 PathProgramCache]: Analyzing trace with hash 269605662, now seen corresponding path program 1 times [2020-10-15 22:20:49,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:49,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316922291] [2020-10-15 22:20:49,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:49,557 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 22:20:49,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316922291] [2020-10-15 22:20:49,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723359793] [2020-10-15 22:20:49,558 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 22:20:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:49,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:20:49,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:49,656 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 22:20:49,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:49,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:20:49,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360752411] [2020-10-15 22:20:49,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:20:49,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:49,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:20:49,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:20:49,658 INFO L87 Difference]: Start difference. First operand 28237 states and 150261 transitions. Second operand 9 states. [2020-10-15 22:20:50,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:50,217 INFO L93 Difference]: Finished difference Result 66831 states and 314874 transitions. [2020-10-15 22:20:50,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:20:50,217 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-10-15 22:20:50,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:50,433 INFO L225 Difference]: With dead ends: 66831 [2020-10-15 22:20:50,433 INFO L226 Difference]: Without dead ends: 66807 [2020-10-15 22:20:50,433 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 22:20:51,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66807 states. [2020-10-15 22:20:52,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66807 to 28673. [2020-10-15 22:20:52,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28673 states. [2020-10-15 22:20:52,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28673 states to 28673 states and 152375 transitions. [2020-10-15 22:20:52,110 INFO L78 Accepts]: Start accepts. Automaton has 28673 states and 152375 transitions. Word has length 19 [2020-10-15 22:20:52,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:52,110 INFO L481 AbstractCegarLoop]: Abstraction has 28673 states and 152375 transitions. [2020-10-15 22:20:52,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:20:52,110 INFO L276 IsEmpty]: Start isEmpty. Operand 28673 states and 152375 transitions. [2020-10-15 22:20:52,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:20:52,111 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:52,111 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:52,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable81 [2020-10-15 22:20:52,326 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 22:20:52,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:52,326 INFO L82 PathProgramCache]: Analyzing trace with hash -2138468196, now seen corresponding path program 2 times [2020-10-15 22:20:52,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:52,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719063473] [2020-10-15 22:20:52,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:52,359 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 22:20:52,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719063473] [2020-10-15 22:20:52,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:52,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:20:52,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254548895] [2020-10-15 22:20:52,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:20:52,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:52,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:20:52,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:20:52,361 INFO L87 Difference]: Start difference. First operand 28673 states and 152375 transitions. Second operand 7 states. [2020-10-15 22:20:53,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:53,244 INFO L93 Difference]: Finished difference Result 68538 states and 323189 transitions. [2020-10-15 22:20:53,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:20:53,244 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 22:20:53,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:53,436 INFO L225 Difference]: With dead ends: 68538 [2020-10-15 22:20:53,437 INFO L226 Difference]: Without dead ends: 68505 [2020-10-15 22:20:53,437 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 22:20:54,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68505 states. [2020-10-15 22:20:54,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68505 to 28061. [2020-10-15 22:20:54,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28061 states. [2020-10-15 22:20:55,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28061 states to 28061 states and 149307 transitions. [2020-10-15 22:20:55,011 INFO L78 Accepts]: Start accepts. Automaton has 28061 states and 149307 transitions. Word has length 19 [2020-10-15 22:20:55,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:55,011 INFO L481 AbstractCegarLoop]: Abstraction has 28061 states and 149307 transitions. [2020-10-15 22:20:55,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:20:55,012 INFO L276 IsEmpty]: Start isEmpty. Operand 28061 states and 149307 transitions. [2020-10-15 22:20:55,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:20:55,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:55,012 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:55,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2020-10-15 22:20:55,013 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 22:20:55,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:55,013 INFO L82 PathProgramCache]: Analyzing trace with hash -2138444729, now seen corresponding path program 1 times [2020-10-15 22:20:55,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:55,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005024286] [2020-10-15 22:20:55,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:55,041 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 22:20:55,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005024286] [2020-10-15 22:20:55,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:55,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:20:55,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406614451] [2020-10-15 22:20:55,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:20:55,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:55,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:20:55,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:20:55,044 INFO L87 Difference]: Start difference. First operand 28061 states and 149307 transitions. Second operand 7 states. [2020-10-15 22:20:55,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:55,577 INFO L93 Difference]: Finished difference Result 69070 states and 326154 transitions. [2020-10-15 22:20:55,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:20:55,578 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 22:20:55,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:55,767 INFO L225 Difference]: With dead ends: 69070 [2020-10-15 22:20:55,767 INFO L226 Difference]: Without dead ends: 69037 [2020-10-15 22:20:55,768 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 22:20:56,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69037 states. [2020-10-15 22:20:57,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69037 to 28938. [2020-10-15 22:20:57,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28938 states. [2020-10-15 22:20:57,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28938 states to 28938 states and 153909 transitions. [2020-10-15 22:20:57,426 INFO L78 Accepts]: Start accepts. Automaton has 28938 states and 153909 transitions. Word has length 19 [2020-10-15 22:20:57,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:57,426 INFO L481 AbstractCegarLoop]: Abstraction has 28938 states and 153909 transitions. [2020-10-15 22:20:57,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:20:57,426 INFO L276 IsEmpty]: Start isEmpty. Operand 28938 states and 153909 transitions. [2020-10-15 22:20:57,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:20:57,427 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:57,427 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:57,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2020-10-15 22:20:57,427 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 22:20:57,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:57,428 INFO L82 PathProgramCache]: Analyzing trace with hash -2117255609, now seen corresponding path program 2 times [2020-10-15 22:20:57,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:57,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925829649] [2020-10-15 22:20:57,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:57,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:57,458 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 22:20:57,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925829649] [2020-10-15 22:20:57,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:57,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:20:57,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553646070] [2020-10-15 22:20:57,460 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:20:57,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:57,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:20:57,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:20:57,461 INFO L87 Difference]: Start difference. First operand 28938 states and 153909 transitions. Second operand 7 states. [2020-10-15 22:20:58,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:58,450 INFO L93 Difference]: Finished difference Result 70096 states and 331298 transitions. [2020-10-15 22:20:58,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:20:58,450 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 22:20:58,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:58,666 INFO L225 Difference]: With dead ends: 70096 [2020-10-15 22:20:58,666 INFO L226 Difference]: Without dead ends: 70063 [2020-10-15 22:20:58,666 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 22:20:59,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70063 states. [2020-10-15 22:21:00,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70063 to 29094. [2020-10-15 22:21:00,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29094 states. [2020-10-15 22:21:00,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29094 states to 29094 states and 154883 transitions. [2020-10-15 22:21:00,376 INFO L78 Accepts]: Start accepts. Automaton has 29094 states and 154883 transitions. Word has length 19 [2020-10-15 22:21:00,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:00,376 INFO L481 AbstractCegarLoop]: Abstraction has 29094 states and 154883 transitions. [2020-10-15 22:21:00,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:21:00,376 INFO L276 IsEmpty]: Start isEmpty. Operand 29094 states and 154883 transitions. [2020-10-15 22:21:00,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:21:00,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:00,378 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 22:21:00,378 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2020-10-15 22:21:00,378 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 22:21:00,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:00,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1393024961, now seen corresponding path program 1 times [2020-10-15 22:21:00,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:00,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157863540] [2020-10-15 22:21:00,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:00,428 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 22:21:00,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157863540] [2020-10-15 22:21:00,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995616987] [2020-10-15 22:21:00,429 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 22:21:00,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:00,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:21:00,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:21:00,526 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 22:21:00,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:21:00,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:21:00,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050769420] [2020-10-15 22:21:00,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:21:00,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:00,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:21:00,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:21:00,527 INFO L87 Difference]: Start difference. First operand 29094 states and 154883 transitions. Second operand 11 states. [2020-10-15 22:21:01,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:01,604 INFO L93 Difference]: Finished difference Result 100731 states and 448596 transitions. [2020-10-15 22:21:01,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:21:01,605 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 22:21:01,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:01,887 INFO L225 Difference]: With dead ends: 100731 [2020-10-15 22:21:01,888 INFO L226 Difference]: Without dead ends: 100715 [2020-10-15 22:21:01,888 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 22:21:02,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100715 states. [2020-10-15 22:21:07,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100715 to 28723. [2020-10-15 22:21:07,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28723 states. [2020-10-15 22:21:07,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28723 states to 28723 states and 152772 transitions. [2020-10-15 22:21:07,174 INFO L78 Accepts]: Start accepts. Automaton has 28723 states and 152772 transitions. Word has length 21 [2020-10-15 22:21:07,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:07,174 INFO L481 AbstractCegarLoop]: Abstraction has 28723 states and 152772 transitions. [2020-10-15 22:21:07,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:21:07,174 INFO L276 IsEmpty]: Start isEmpty. Operand 28723 states and 152772 transitions. [2020-10-15 22:21:07,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:21:07,175 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:07,175 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 22:21:07,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:21:07,376 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 22:21:07,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:07,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1414214081, now seen corresponding path program 2 times [2020-10-15 22:21:07,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:07,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53827207] [2020-10-15 22:21:07,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:07,423 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 22:21:07,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53827207] [2020-10-15 22:21:07,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957041309] [2020-10-15 22:21:07,424 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 22:21:07,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:21:07,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:21:07,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:21:07,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:21:07,528 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 22:21:07,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:21:07,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:21:07,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257309168] [2020-10-15 22:21:07,529 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:21:07,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:07,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:21:07,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:21:07,529 INFO L87 Difference]: Start difference. First operand 28723 states and 152772 transitions. Second operand 11 states. [2020-10-15 22:21:08,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:08,602 INFO L93 Difference]: Finished difference Result 99884 states and 444368 transitions. [2020-10-15 22:21:08,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:21:08,602 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 22:21:08,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:08,869 INFO L225 Difference]: With dead ends: 99884 [2020-10-15 22:21:08,870 INFO L226 Difference]: Without dead ends: 99863 [2020-10-15 22:21:08,870 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 22:21:09,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99863 states. [2020-10-15 22:21:10,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99863 to 28343. [2020-10-15 22:21:10,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28343 states. [2020-10-15 22:21:10,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28343 states to 28343 states and 150639 transitions. [2020-10-15 22:21:10,916 INFO L78 Accepts]: Start accepts. Automaton has 28343 states and 150639 transitions. Word has length 21 [2020-10-15 22:21:10,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:10,916 INFO L481 AbstractCegarLoop]: Abstraction has 28343 states and 150639 transitions. [2020-10-15 22:21:10,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:21:10,916 INFO L276 IsEmpty]: Start isEmpty. Operand 28343 states and 150639 transitions. [2020-10-15 22:21:10,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:21:10,917 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:10,917 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 22:21:11,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2020-10-15 22:21:11,118 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 22:21:11,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:11,118 INFO L82 PathProgramCache]: Analyzing trace with hash -2073547329, now seen corresponding path program 3 times [2020-10-15 22:21:11,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:11,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813038959] [2020-10-15 22:21:11,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:11,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:11,165 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 22:21:11,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813038959] [2020-10-15 22:21:11,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:21:11,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:21:11,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218824289] [2020-10-15 22:21:11,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:21:11,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:11,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:21:11,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:21:11,168 INFO L87 Difference]: Start difference. First operand 28343 states and 150639 transitions. Second operand 9 states. [2020-10-15 22:21:12,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:12,205 INFO L93 Difference]: Finished difference Result 100063 states and 445271 transitions. [2020-10-15 22:21:12,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:21:12,206 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-15 22:21:12,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:12,476 INFO L225 Difference]: With dead ends: 100063 [2020-10-15 22:21:12,476 INFO L226 Difference]: Without dead ends: 100047 [2020-10-15 22:21:12,477 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 22:21:16,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100047 states. [2020-10-15 22:21:17,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100047 to 27662. [2020-10-15 22:21:17,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27662 states. [2020-10-15 22:21:17,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27662 states to 27662 states and 147100 transitions. [2020-10-15 22:21:17,475 INFO L78 Accepts]: Start accepts. Automaton has 27662 states and 147100 transitions. Word has length 21 [2020-10-15 22:21:17,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:17,475 INFO L481 AbstractCegarLoop]: Abstraction has 27662 states and 147100 transitions. [2020-10-15 22:21:17,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:21:17,475 INFO L276 IsEmpty]: Start isEmpty. Operand 27662 states and 147100 transitions. [2020-10-15 22:21:17,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:21:17,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:17,476 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 22:21:17,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2020-10-15 22:21:17,477 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 22:21:17,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:17,477 INFO L82 PathProgramCache]: Analyzing trace with hash -2051019009, now seen corresponding path program 4 times [2020-10-15 22:21:17,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:17,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453870318] [2020-10-15 22:21:17,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:17,521 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 22:21:17,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453870318] [2020-10-15 22:21:17,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:21:17,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:21:17,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023768242] [2020-10-15 22:21:17,522 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:21:17,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:17,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:21:17,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:21:17,523 INFO L87 Difference]: Start difference. First operand 27662 states and 147100 transitions. Second operand 9 states. [2020-10-15 22:21:18,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:18,559 INFO L93 Difference]: Finished difference Result 99531 states and 442783 transitions. [2020-10-15 22:21:18,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:21:18,560 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-15 22:21:18,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:18,841 INFO L225 Difference]: With dead ends: 99531 [2020-10-15 22:21:18,841 INFO L226 Difference]: Without dead ends: 99510 [2020-10-15 22:21:18,842 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 22:21:19,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99510 states. [2020-10-15 22:21:20,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99510 to 27286. [2020-10-15 22:21:20,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27286 states. [2020-10-15 22:21:20,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27286 states to 27286 states and 144979 transitions. [2020-10-15 22:21:20,932 INFO L78 Accepts]: Start accepts. Automaton has 27286 states and 144979 transitions. Word has length 21 [2020-10-15 22:21:20,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:20,932 INFO L481 AbstractCegarLoop]: Abstraction has 27286 states and 144979 transitions. [2020-10-15 22:21:20,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:21:20,932 INFO L276 IsEmpty]: Start isEmpty. Operand 27286 states and 144979 transitions. [2020-10-15 22:21:20,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:21:20,933 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:20,933 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:21:20,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2020-10-15 22:21:20,934 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 22:21:20,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:20,934 INFO L82 PathProgramCache]: Analyzing trace with hash 102150333, now seen corresponding path program 1 times [2020-10-15 22:21:20,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:20,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24741367] [2020-10-15 22:21:20,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:20,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:20,950 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 22:21:20,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24741367] [2020-10-15 22:21:20,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:21:20,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:21:20,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870528260] [2020-10-15 22:21:20,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:21:20,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:20,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:21:20,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:21:20,952 INFO L87 Difference]: Start difference. First operand 27286 states and 144979 transitions. Second operand 5 states. [2020-10-15 22:21:21,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:21,294 INFO L93 Difference]: Finished difference Result 49004 states and 248721 transitions. [2020-10-15 22:21:21,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:21:21,295 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-15 22:21:21,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:21,445 INFO L225 Difference]: With dead ends: 49004 [2020-10-15 22:21:21,445 INFO L226 Difference]: Without dead ends: 48958 [2020-10-15 22:21:21,446 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 22:21:22,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48958 states. [2020-10-15 22:21:23,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48958 to 33985. [2020-10-15 22:21:23,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33985 states. [2020-10-15 22:21:23,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33985 states to 33985 states and 181777 transitions. [2020-10-15 22:21:23,661 INFO L78 Accepts]: Start accepts. Automaton has 33985 states and 181777 transitions. Word has length 21 [2020-10-15 22:21:23,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:23,661 INFO L481 AbstractCegarLoop]: Abstraction has 33985 states and 181777 transitions. [2020-10-15 22:21:23,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:21:23,661 INFO L276 IsEmpty]: Start isEmpty. Operand 33985 states and 181777 transitions. [2020-10-15 22:21:23,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:21:23,662 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:23,662 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 22:21:23,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2020-10-15 22:21:23,662 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 22:21:23,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:23,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1130516927, now seen corresponding path program 5 times [2020-10-15 22:21:23,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:23,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778786773] [2020-10-15 22:21:23,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:23,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:23,713 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 22:21:23,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778786773] [2020-10-15 22:21:23,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:21:23,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:21:23,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887891142] [2020-10-15 22:21:23,715 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:21:23,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:23,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:21:23,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:21:23,716 INFO L87 Difference]: Start difference. First operand 33985 states and 181777 transitions. Second operand 9 states. [2020-10-15 22:21:24,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:24,880 INFO L93 Difference]: Finished difference Result 115592 states and 523747 transitions. [2020-10-15 22:21:24,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:21:24,881 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-15 22:21:24,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:25,246 INFO L225 Difference]: With dead ends: 115592 [2020-10-15 22:21:25,247 INFO L226 Difference]: Without dead ends: 115567 [2020-10-15 22:21:25,247 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 22:21:26,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115567 states. [2020-10-15 22:21:27,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115567 to 33074. [2020-10-15 22:21:27,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33074 states. [2020-10-15 22:21:27,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33074 states to 33074 states and 176935 transitions. [2020-10-15 22:21:27,706 INFO L78 Accepts]: Start accepts. Automaton has 33074 states and 176935 transitions. Word has length 21 [2020-10-15 22:21:27,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:27,706 INFO L481 AbstractCegarLoop]: Abstraction has 33074 states and 176935 transitions. [2020-10-15 22:21:27,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:21:27,706 INFO L276 IsEmpty]: Start isEmpty. Operand 33074 states and 176935 transitions. [2020-10-15 22:21:27,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:21:27,707 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:27,708 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 22:21:27,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2020-10-15 22:21:27,708 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 22:21:27,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:27,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1131856127, now seen corresponding path program 6 times [2020-10-15 22:21:27,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:27,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954139752] [2020-10-15 22:21:27,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:27,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:27,761 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 22:21:27,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954139752] [2020-10-15 22:21:27,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:21:27,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:21:27,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249491355] [2020-10-15 22:21:27,763 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:21:27,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:27,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:21:27,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:21:27,763 INFO L87 Difference]: Start difference. First operand 33074 states and 176935 transitions. Second operand 9 states. [2020-10-15 22:21:28,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:28,869 INFO L93 Difference]: Finished difference Result 114402 states and 517732 transitions. [2020-10-15 22:21:28,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:21:28,870 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-15 22:21:28,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:29,191 INFO L225 Difference]: With dead ends: 114402 [2020-10-15 22:21:29,191 INFO L226 Difference]: Without dead ends: 114371 [2020-10-15 22:21:29,192 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 22:21:31,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114371 states. [2020-10-15 22:21:32,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114371 to 31960. [2020-10-15 22:21:32,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31960 states. [2020-10-15 22:21:32,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31960 states to 31960 states and 171209 transitions. [2020-10-15 22:21:32,484 INFO L78 Accepts]: Start accepts. Automaton has 31960 states and 171209 transitions. Word has length 21 [2020-10-15 22:21:32,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:32,485 INFO L481 AbstractCegarLoop]: Abstraction has 31960 states and 171209 transitions. [2020-10-15 22:21:32,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:21:32,485 INFO L276 IsEmpty]: Start isEmpty. Operand 31960 states and 171209 transitions. [2020-10-15 22:21:32,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 22:21:32,486 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:32,486 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:21:32,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2020-10-15 22:21:32,487 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 22:21:32,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:32,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1106577557, now seen corresponding path program 1 times [2020-10-15 22:21:32,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:32,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633541389] [2020-10-15 22:21:32,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:32,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:32,531 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 22:21:32,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633541389] [2020-10-15 22:21:32,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577881588] [2020-10-15 22:21:32,532 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 22:21:32,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:32,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:21:32,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:21:32,640 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 22:21:32,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:21:32,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:21:32,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744364331] [2020-10-15 22:21:32,641 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:21:32,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:32,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:21:32,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:21:32,642 INFO L87 Difference]: Start difference. First operand 31960 states and 171209 transitions. Second operand 9 states. [2020-10-15 22:21:33,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:33,269 INFO L93 Difference]: Finished difference Result 75380 states and 361389 transitions. [2020-10-15 22:21:33,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:21:33,270 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-15 22:21:33,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:33,484 INFO L225 Difference]: With dead ends: 75380 [2020-10-15 22:21:33,485 INFO L226 Difference]: Without dead ends: 75344 [2020-10-15 22:21:33,485 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 22:21:34,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75344 states. [2020-10-15 22:21:35,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75344 to 32974. [2020-10-15 22:21:35,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32974 states. [2020-10-15 22:21:35,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32974 states to 32974 states and 176363 transitions. [2020-10-15 22:21:35,303 INFO L78 Accepts]: Start accepts. Automaton has 32974 states and 176363 transitions. Word has length 23 [2020-10-15 22:21:35,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:35,303 INFO L481 AbstractCegarLoop]: Abstraction has 32974 states and 176363 transitions. [2020-10-15 22:21:35,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:21:35,304 INFO L276 IsEmpty]: Start isEmpty. Operand 32974 states and 176363 transitions. [2020-10-15 22:21:35,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 22:21:35,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:35,305 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:21:35,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:21:35,506 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 22:21:35,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:35,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1026706248, now seen corresponding path program 1 times [2020-10-15 22:21:35,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:35,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57563193] [2020-10-15 22:21:35,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:35,538 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 22:21:35,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57563193] [2020-10-15 22:21:35,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611355219] [2020-10-15 22:21:35,539 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 22:21:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:35,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:21:35,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:21:35,638 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 22:21:35,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:21:35,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:21:35,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062855052] [2020-10-15 22:21:35,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:21:35,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:35,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:21:35,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:21:35,640 INFO L87 Difference]: Start difference. First operand 32974 states and 176363 transitions. Second operand 9 states. [2020-10-15 22:21:36,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:36,256 INFO L93 Difference]: Finished difference Result 79463 states and 381713 transitions. [2020-10-15 22:21:36,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:21:36,257 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-15 22:21:36,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:36,480 INFO L225 Difference]: With dead ends: 79463 [2020-10-15 22:21:36,480 INFO L226 Difference]: Without dead ends: 79421 [2020-10-15 22:21:36,481 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 22:21:37,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79421 states. [2020-10-15 22:21:38,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79421 to 33977. [2020-10-15 22:21:38,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33977 states. [2020-10-15 22:21:38,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33977 states to 33977 states and 181698 transitions. [2020-10-15 22:21:38,848 INFO L78 Accepts]: Start accepts. Automaton has 33977 states and 181698 transitions. Word has length 23 [2020-10-15 22:21:38,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:38,848 INFO L481 AbstractCegarLoop]: Abstraction has 33977 states and 181698 transitions. [2020-10-15 22:21:38,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:21:38,848 INFO L276 IsEmpty]: Start isEmpty. Operand 33977 states and 181698 transitions. [2020-10-15 22:21:38,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 22:21:38,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:38,850 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:21:39,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,37 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:21:39,051 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 22:21:39,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:39,051 INFO L82 PathProgramCache]: Analyzing trace with hash -617779723, now seen corresponding path program 2 times [2020-10-15 22:21:39,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:39,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014571096] [2020-10-15 22:21:39,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:39,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:39,083 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 22:21:39,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014571096] [2020-10-15 22:21:39,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:21:39,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:21:39,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442468982] [2020-10-15 22:21:39,084 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:21:39,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:39,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:21:39,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:21:39,085 INFO L87 Difference]: Start difference. First operand 33977 states and 181698 transitions. Second operand 7 states. [2020-10-15 22:21:40,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:40,096 INFO L93 Difference]: Finished difference Result 80867 states and 388763 transitions. [2020-10-15 22:21:40,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:21:40,096 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-15 22:21:40,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:40,351 INFO L225 Difference]: With dead ends: 80867 [2020-10-15 22:21:40,352 INFO L226 Difference]: Without dead ends: 80812 [2020-10-15 22:21:40,352 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 22:21:41,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80812 states. [2020-10-15 22:21:42,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80812 to 34223. [2020-10-15 22:21:42,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34223 states. [2020-10-15 22:21:42,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34223 states to 34223 states and 183033 transitions. [2020-10-15 22:21:42,246 INFO L78 Accepts]: Start accepts. Automaton has 34223 states and 183033 transitions. Word has length 23 [2020-10-15 22:21:42,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:42,247 INFO L481 AbstractCegarLoop]: Abstraction has 34223 states and 183033 transitions. [2020-10-15 22:21:42,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:21:42,247 INFO L276 IsEmpty]: Start isEmpty. Operand 34223 states and 183033 transitions. [2020-10-15 22:21:42,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 22:21:42,248 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:42,249 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:21:42,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2020-10-15 22:21:42,249 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 22:21:42,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:42,249 INFO L82 PathProgramCache]: Analyzing trace with hash -617778328, now seen corresponding path program 2 times [2020-10-15 22:21:42,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:42,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230366699] [2020-10-15 22:21:42,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:42,281 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 22:21:42,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230366699] [2020-10-15 22:21:42,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:21:42,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:21:42,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746293166] [2020-10-15 22:21:42,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:21:42,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:42,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:21:42,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:21:42,284 INFO L87 Difference]: Start difference. First operand 34223 states and 183033 transitions. Second operand 7 states. [2020-10-15 22:21:42,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:42,882 INFO L93 Difference]: Finished difference Result 80887 states and 388540 transitions. [2020-10-15 22:21:42,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:21:42,883 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-15 22:21:42,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:43,122 INFO L225 Difference]: With dead ends: 80887 [2020-10-15 22:21:43,123 INFO L226 Difference]: Without dead ends: 80832 [2020-10-15 22:21:43,123 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 22:21:43,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80832 states. [2020-10-15 22:21:44,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80832 to 34508. [2020-10-15 22:21:44,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34508 states. [2020-10-15 22:21:45,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34508 states to 34508 states and 184670 transitions. [2020-10-15 22:21:45,045 INFO L78 Accepts]: Start accepts. Automaton has 34508 states and 184670 transitions. Word has length 23 [2020-10-15 22:21:45,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:45,045 INFO L481 AbstractCegarLoop]: Abstraction has 34508 states and 184670 transitions. [2020-10-15 22:21:45,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:21:45,045 INFO L276 IsEmpty]: Start isEmpty. Operand 34508 states and 184670 transitions. [2020-10-15 22:21:45,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 22:21:45,047 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:45,047 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:21:45,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2020-10-15 22:21:45,047 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 22:21:45,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:45,048 INFO L82 PathProgramCache]: Analyzing trace with hash -617756256, now seen corresponding path program 1 times [2020-10-15 22:21:45,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:45,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170605716] [2020-10-15 22:21:45,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:45,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:45,079 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 22:21:45,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170605716] [2020-10-15 22:21:45,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:21:45,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:21:45,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144836004] [2020-10-15 22:21:45,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:21:45,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:45,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:21:45,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:21:45,081 INFO L87 Difference]: Start difference. First operand 34508 states and 184670 transitions. Second operand 7 states. [2020-10-15 22:21:46,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:46,277 INFO L93 Difference]: Finished difference Result 83313 states and 401031 transitions. [2020-10-15 22:21:46,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:21:46,278 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-15 22:21:46,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:46,545 INFO L225 Difference]: With dead ends: 83313 [2020-10-15 22:21:46,545 INFO L226 Difference]: Without dead ends: 83258 [2020-10-15 22:21:46,545 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 22:21:47,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83258 states. [2020-10-15 22:21:48,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83258 to 36258. [2020-10-15 22:21:48,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36258 states. [2020-10-15 22:21:48,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36258 states to 36258 states and 193887 transitions. [2020-10-15 22:21:48,525 INFO L78 Accepts]: Start accepts. Automaton has 36258 states and 193887 transitions. Word has length 23 [2020-10-15 22:21:48,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:48,525 INFO L481 AbstractCegarLoop]: Abstraction has 36258 states and 193887 transitions. [2020-10-15 22:21:48,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:21:48,525 INFO L276 IsEmpty]: Start isEmpty. Operand 36258 states and 193887 transitions. [2020-10-15 22:21:48,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 22:21:48,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:48,527 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:21:48,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2020-10-15 22:21:48,527 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 22:21:48,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:48,528 INFO L82 PathProgramCache]: Analyzing trace with hash -581716896, now seen corresponding path program 2 times [2020-10-15 22:21:48,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:48,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980576562] [2020-10-15 22:21:48,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:48,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:48,559 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 22:21:48,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980576562] [2020-10-15 22:21:48,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:21:48,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:21:48,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219919371] [2020-10-15 22:21:48,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:21:48,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:48,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:21:48,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:21:48,561 INFO L87 Difference]: Start difference. First operand 36258 states and 193887 transitions. Second operand 7 states. [2020-10-15 22:21:49,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:49,260 INFO L93 Difference]: Finished difference Result 84364 states and 406246 transitions. [2020-10-15 22:21:49,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:21:49,261 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-15 22:21:49,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:49,550 INFO L225 Difference]: With dead ends: 84364 [2020-10-15 22:21:49,550 INFO L226 Difference]: Without dead ends: 84309 [2020-10-15 22:21:49,550 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 22:21:50,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84309 states. [2020-10-15 22:21:51,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84309 to 37062. [2020-10-15 22:21:51,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37062 states. [2020-10-15 22:21:51,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37062 states to 37062 states and 198528 transitions. [2020-10-15 22:21:51,664 INFO L78 Accepts]: Start accepts. Automaton has 37062 states and 198528 transitions. Word has length 23 [2020-10-15 22:21:51,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:51,664 INFO L481 AbstractCegarLoop]: Abstraction has 37062 states and 198528 transitions. [2020-10-15 22:21:51,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:21:51,664 INFO L276 IsEmpty]: Start isEmpty. Operand 37062 states and 198528 transitions. [2020-10-15 22:21:51,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:21:51,667 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:51,667 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 22:21:51,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2020-10-15 22:21:51,667 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 22:21:51,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:51,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1745706838, now seen corresponding path program 1 times [2020-10-15 22:21:51,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:51,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374429632] [2020-10-15 22:21:51,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:51,718 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 22:21:51,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374429632] [2020-10-15 22:21:51,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719872926] [2020-10-15 22:21:51,719 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 22:21:51,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:51,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:21:51,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:21:51,826 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 22:21:51,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:21:51,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:21:51,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957735629] [2020-10-15 22:21:51,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:21:51,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:51,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:21:51,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:21:51,827 INFO L87 Difference]: Start difference. First operand 37062 states and 198528 transitions. Second operand 11 states. [2020-10-15 22:21:53,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:53,048 INFO L93 Difference]: Finished difference Result 122892 states and 561130 transitions. [2020-10-15 22:21:53,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:21:53,048 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:21:53,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:53,392 INFO L225 Difference]: With dead ends: 122892 [2020-10-15 22:21:53,392 INFO L226 Difference]: Without dead ends: 122862 [2020-10-15 22:21:53,392 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 22:21:55,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122862 states. [2020-10-15 22:21:56,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122862 to 36735. [2020-10-15 22:21:56,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36735 states. [2020-10-15 22:21:56,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36735 states to 36735 states and 196486 transitions. [2020-10-15 22:21:56,787 INFO L78 Accepts]: Start accepts. Automaton has 36735 states and 196486 transitions. Word has length 25 [2020-10-15 22:21:56,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:56,787 INFO L481 AbstractCegarLoop]: Abstraction has 36735 states and 196486 transitions. [2020-10-15 22:21:56,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:21:56,787 INFO L276 IsEmpty]: Start isEmpty. Operand 36735 states and 196486 transitions. [2020-10-15 22:21:56,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:21:56,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:56,790 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 22:21:56,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable98 [2020-10-15 22:21:56,991 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 22:21:56,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:56,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1730856598, now seen corresponding path program 2 times [2020-10-15 22:21:56,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:56,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467838693] [2020-10-15 22:21:56,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:56,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:57,041 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 22:21:57,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467838693] [2020-10-15 22:21:57,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650737479] [2020-10-15 22:21:57,042 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 22:21:57,129 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:21:57,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:21:57,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:21:57,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:21:57,149 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 22:21:57,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:21:57,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:21:57,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500480352] [2020-10-15 22:21:57,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:21:57,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:57,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:21:57,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:21:57,150 INFO L87 Difference]: Start difference. First operand 36735 states and 196486 transitions. Second operand 11 states. [2020-10-15 22:21:58,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:58,387 INFO L93 Difference]: Finished difference Result 121506 states and 554103 transitions. [2020-10-15 22:21:58,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:21:58,388 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:21:58,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:58,734 INFO L225 Difference]: With dead ends: 121506 [2020-10-15 22:21:58,734 INFO L226 Difference]: Without dead ends: 121473 [2020-10-15 22:21:58,734 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 22:21:59,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121473 states. [2020-10-15 22:22:01,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121473 to 36666. [2020-10-15 22:22:01,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36666 states. [2020-10-15 22:22:01,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36666 states to 36666 states and 195964 transitions. [2020-10-15 22:22:01,514 INFO L78 Accepts]: Start accepts. Automaton has 36666 states and 195964 transitions. Word has length 25 [2020-10-15 22:22:01,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:01,514 INFO L481 AbstractCegarLoop]: Abstraction has 36666 states and 195964 transitions. [2020-10-15 22:22:01,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:22:01,514 INFO L276 IsEmpty]: Start isEmpty. Operand 36666 states and 195964 transitions. [2020-10-15 22:22:01,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:01,518 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:01,518 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 22:22:01,718 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99,39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:22:01,719 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 22:22:01,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:01,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1730878670, now seen corresponding path program 1 times [2020-10-15 22:22:01,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:01,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040025605] [2020-10-15 22:22:01,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:01,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:01,765 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 22:22:01,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040025605] [2020-10-15 22:22:01,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186600253] [2020-10-15 22:22:01,766 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 22:22:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:01,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:22:01,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:22:01,867 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 22:22:01,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:22:01,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:22:01,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277604097] [2020-10-15 22:22:01,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:22:01,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:01,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:22:01,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:22:01,870 INFO L87 Difference]: Start difference. First operand 36666 states and 195964 transitions. Second operand 11 states. [2020-10-15 22:22:03,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:03,019 INFO L93 Difference]: Finished difference Result 120500 states and 549397 transitions. [2020-10-15 22:22:03,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:22:03,020 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:22:03,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:03,353 INFO L225 Difference]: With dead ends: 120500 [2020-10-15 22:22:03,353 INFO L226 Difference]: Without dead ends: 120470 [2020-10-15 22:22:03,353 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 22:22:05,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120470 states. [2020-10-15 22:22:06,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120470 to 36343. [2020-10-15 22:22:06,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36343 states. [2020-10-15 22:22:06,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36343 states to 36343 states and 194056 transitions. [2020-10-15 22:22:06,346 INFO L78 Accepts]: Start accepts. Automaton has 36343 states and 194056 transitions. Word has length 25 [2020-10-15 22:22:06,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:06,347 INFO L481 AbstractCegarLoop]: Abstraction has 36343 states and 194056 transitions. [2020-10-15 22:22:06,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:22:06,347 INFO L276 IsEmpty]: Start isEmpty. Operand 36343 states and 194056 transitions. [2020-10-15 22:22:06,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:06,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:06,349 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 22:22:06,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2020-10-15 22:22:06,550 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 22:22:06,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:06,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1766918030, now seen corresponding path program 2 times [2020-10-15 22:22:06,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:06,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961093269] [2020-10-15 22:22:06,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:06,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:06,598 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 22:22:06,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961093269] [2020-10-15 22:22:06,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419752528] [2020-10-15 22:22:06,599 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 22:22:06,684 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:22:06,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:22:06,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:22:06,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:22:06,711 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 22:22:06,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:22:06,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:22:06,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202198126] [2020-10-15 22:22:06,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:22:06,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:06,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:22:06,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:22:06,712 INFO L87 Difference]: Start difference. First operand 36343 states and 194056 transitions. Second operand 11 states. [2020-10-15 22:22:07,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:07,887 INFO L93 Difference]: Finished difference Result 119731 states and 545560 transitions. [2020-10-15 22:22:07,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:22:07,887 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:22:07,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:08,222 INFO L225 Difference]: With dead ends: 119731 [2020-10-15 22:22:08,222 INFO L226 Difference]: Without dead ends: 119698 [2020-10-15 22:22:08,223 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 22:22:09,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119698 states. [2020-10-15 22:22:10,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119698 to 36040. [2020-10-15 22:22:10,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36040 states. [2020-10-15 22:22:10,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36040 states to 36040 states and 192287 transitions. [2020-10-15 22:22:10,741 INFO L78 Accepts]: Start accepts. Automaton has 36040 states and 192287 transitions. Word has length 25 [2020-10-15 22:22:10,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:10,741 INFO L481 AbstractCegarLoop]: Abstraction has 36040 states and 192287 transitions. [2020-10-15 22:22:10,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:22:10,741 INFO L276 IsEmpty]: Start isEmpty. Operand 36040 states and 192287 transitions. [2020-10-15 22:22:10,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:10,744 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:10,744 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 22:22:10,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:22:10,945 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 22:22:10,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:10,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1849107924, now seen corresponding path program 3 times [2020-10-15 22:22:10,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:10,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363279626] [2020-10-15 22:22:10,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:10,994 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 22:22:10,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363279626] [2020-10-15 22:22:10,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509034598] [2020-10-15 22:22:10,994 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 22:22:11,079 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-15 22:22:11,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:22:11,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:22:11,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:22:11,102 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 22:22:11,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:22:11,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:22:11,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104225382] [2020-10-15 22:22:11,102 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:22:11,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:11,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:22:11,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:22:11,103 INFO L87 Difference]: Start difference. First operand 36040 states and 192287 transitions. Second operand 11 states. [2020-10-15 22:22:12,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:12,279 INFO L93 Difference]: Finished difference Result 119762 states and 545615 transitions. [2020-10-15 22:22:12,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:22:12,280 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:22:12,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:12,623 INFO L225 Difference]: With dead ends: 119762 [2020-10-15 22:22:12,623 INFO L226 Difference]: Without dead ends: 119732 [2020-10-15 22:22:12,623 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 22:22:14,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119732 states. [2020-10-15 22:22:15,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119732 to 35475. [2020-10-15 22:22:15,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35475 states. [2020-10-15 22:22:15,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35475 states to 35475 states and 189246 transitions. [2020-10-15 22:22:15,765 INFO L78 Accepts]: Start accepts. Automaton has 35475 states and 189246 transitions. Word has length 25 [2020-10-15 22:22:15,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:15,765 INFO L481 AbstractCegarLoop]: Abstraction has 35475 states and 189246 transitions. [2020-10-15 22:22:15,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:22:15,765 INFO L276 IsEmpty]: Start isEmpty. Operand 35475 states and 189246 transitions. [2020-10-15 22:22:15,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:15,767 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:15,767 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 22:22:15,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2020-10-15 22:22:15,968 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 22:22:15,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:15,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1177775680, now seen corresponding path program 4 times [2020-10-15 22:22:15,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:15,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937832640] [2020-10-15 22:22:15,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:15,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:16,018 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 22:22:16,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937832640] [2020-10-15 22:22:16,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870465433] [2020-10-15 22:22:16,018 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 22:22:16,108 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 22:22:16,108 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:22:16,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:22:16,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:22:16,128 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 22:22:16,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:22:16,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:22:16,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270976049] [2020-10-15 22:22:16,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:22:16,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:16,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:22:16,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:22:16,129 INFO L87 Difference]: Start difference. First operand 35475 states and 189246 transitions. Second operand 11 states. [2020-10-15 22:22:17,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:17,378 INFO L93 Difference]: Finished difference Result 120788 states and 550630 transitions. [2020-10-15 22:22:17,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:22:17,378 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:22:17,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:17,719 INFO L225 Difference]: With dead ends: 120788 [2020-10-15 22:22:17,719 INFO L226 Difference]: Without dead ends: 120755 [2020-10-15 22:22:17,720 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 22:22:18,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120755 states. [2020-10-15 22:22:20,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120755 to 35406. [2020-10-15 22:22:20,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35406 states. [2020-10-15 22:22:20,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35406 states to 35406 states and 188724 transitions. [2020-10-15 22:22:20,419 INFO L78 Accepts]: Start accepts. Automaton has 35406 states and 188724 transitions. Word has length 25 [2020-10-15 22:22:20,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:20,420 INFO L481 AbstractCegarLoop]: Abstraction has 35406 states and 188724 transitions. [2020-10-15 22:22:20,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:22:20,420 INFO L276 IsEmpty]: Start isEmpty. Operand 35406 states and 188724 transitions. [2020-10-15 22:22:20,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:20,422 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:20,422 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 22:22:20,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2020-10-15 22:22:20,628 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 22:22:20,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:20,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1177752213, now seen corresponding path program 1 times [2020-10-15 22:22:20,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:20,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963813277] [2020-10-15 22:22:20,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:20,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:20,677 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 22:22:20,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963813277] [2020-10-15 22:22:20,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398635170] [2020-10-15 22:22:20,678 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 22:22:20,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:20,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:22:20,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:22:20,785 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 22:22:20,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:22:20,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:22:20,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488160409] [2020-10-15 22:22:20,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:22:20,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:20,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:22:20,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:22:20,786 INFO L87 Difference]: Start difference. First operand 35406 states and 188724 transitions. Second operand 11 states. [2020-10-15 22:22:22,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:22,046 INFO L93 Difference]: Finished difference Result 120291 states and 549128 transitions. [2020-10-15 22:22:22,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:22:22,047 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:22:22,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:23,048 INFO L225 Difference]: With dead ends: 120291 [2020-10-15 22:22:23,048 INFO L226 Difference]: Without dead ends: 120261 [2020-10-15 22:22:23,048 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 22:22:24,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120261 states. [2020-10-15 22:22:25,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120261 to 35196. [2020-10-15 22:22:25,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35196 states. [2020-10-15 22:22:25,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35196 states to 35196 states and 187476 transitions. [2020-10-15 22:22:25,369 INFO L78 Accepts]: Start accepts. Automaton has 35196 states and 187476 transitions. Word has length 25 [2020-10-15 22:22:25,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:25,369 INFO L481 AbstractCegarLoop]: Abstraction has 35196 states and 187476 transitions. [2020-10-15 22:22:25,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:22:25,369 INFO L276 IsEmpty]: Start isEmpty. Operand 35196 states and 187476 transitions. [2020-10-15 22:22:25,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:25,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:25,372 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 22:22:25,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:22:25,573 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 22:22:25,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:25,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1141712853, now seen corresponding path program 2 times [2020-10-15 22:22:25,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:25,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369002255] [2020-10-15 22:22:25,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:25,625 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 22:22:25,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369002255] [2020-10-15 22:22:25,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640189764] [2020-10-15 22:22:25,626 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 22:22:25,712 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:22:25,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:22:25,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:22:25,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:22:25,735 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 22:22:25,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:22:25,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:22:25,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790432603] [2020-10-15 22:22:25,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:22:25,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:25,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:22:25,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:22:25,737 INFO L87 Difference]: Start difference. First operand 35196 states and 187476 transitions. Second operand 11 states. [2020-10-15 22:22:26,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:26,871 INFO L93 Difference]: Finished difference Result 119264 states and 544110 transitions. [2020-10-15 22:22:26,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:22:26,872 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:22:26,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:27,201 INFO L225 Difference]: With dead ends: 119264 [2020-10-15 22:22:27,201 INFO L226 Difference]: Without dead ends: 119224 [2020-10-15 22:22:27,202 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 22:22:28,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119224 states. [2020-10-15 22:22:29,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119224 to 34815. [2020-10-15 22:22:29,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34815 states. [2020-10-15 22:22:29,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34815 states to 34815 states and 185342 transitions. [2020-10-15 22:22:29,636 INFO L78 Accepts]: Start accepts. Automaton has 34815 states and 185342 transitions. Word has length 25 [2020-10-15 22:22:29,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:29,637 INFO L481 AbstractCegarLoop]: Abstraction has 34815 states and 185342 transitions. [2020-10-15 22:22:29,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:22:29,637 INFO L276 IsEmpty]: Start isEmpty. Operand 34815 states and 185342 transitions. [2020-10-15 22:22:29,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:29,639 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:29,639 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 22:22:29,846 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2020-10-15 22:22:29,847 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 22:22:29,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:29,848 INFO L82 PathProgramCache]: Analyzing trace with hash -980827488, now seen corresponding path program 5 times [2020-10-15 22:22:29,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:29,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028716650] [2020-10-15 22:22:29,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:29,896 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 22:22:29,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028716650] [2020-10-15 22:22:29,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:22:29,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:22:29,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647305994] [2020-10-15 22:22:29,897 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:22:29,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:29,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:22:29,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:22:29,898 INFO L87 Difference]: Start difference. First operand 34815 states and 185342 transitions. Second operand 9 states. [2020-10-15 22:22:31,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:31,021 INFO L93 Difference]: Finished difference Result 119116 states and 542590 transitions. [2020-10-15 22:22:31,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:22:31,022 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:22:31,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:32,064 INFO L225 Difference]: With dead ends: 119116 [2020-10-15 22:22:32,064 INFO L226 Difference]: Without dead ends: 119086 [2020-10-15 22:22:32,064 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 22:22:33,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119086 states. [2020-10-15 22:22:34,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119086 to 34044. [2020-10-15 22:22:34,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34044 states. [2020-10-15 22:22:34,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34044 states to 34044 states and 181257 transitions. [2020-10-15 22:22:34,484 INFO L78 Accepts]: Start accepts. Automaton has 34044 states and 181257 transitions. Word has length 25 [2020-10-15 22:22:34,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:34,485 INFO L481 AbstractCegarLoop]: Abstraction has 34044 states and 181257 transitions. [2020-10-15 22:22:34,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:22:34,485 INFO L276 IsEmpty]: Start isEmpty. Operand 34044 states and 181257 transitions. [2020-10-15 22:22:34,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:34,488 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:34,488 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 22:22:34,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2020-10-15 22:22:34,488 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 22:22:34,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:34,488 INFO L82 PathProgramCache]: Analyzing trace with hash -980805416, now seen corresponding path program 3 times [2020-10-15 22:22:34,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:34,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568094394] [2020-10-15 22:22:34,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:34,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:34,540 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 22:22:34,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568094394] [2020-10-15 22:22:34,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:22:34,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:22:34,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584866430] [2020-10-15 22:22:34,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:22:34,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:34,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:22:34,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:22:34,542 INFO L87 Difference]: Start difference. First operand 34044 states and 181257 transitions. Second operand 9 states. [2020-10-15 22:22:35,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:35,738 INFO L93 Difference]: Finished difference Result 118392 states and 539774 transitions. [2020-10-15 22:22:35,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:22:35,738 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:22:35,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:36,081 INFO L225 Difference]: With dead ends: 118392 [2020-10-15 22:22:36,081 INFO L226 Difference]: Without dead ends: 118362 [2020-10-15 22:22:36,081 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 22:22:37,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118362 states. [2020-10-15 22:22:38,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118362 to 33530. [2020-10-15 22:22:38,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33530 states. [2020-10-15 22:22:38,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33530 states to 33530 states and 178563 transitions. [2020-10-15 22:22:38,557 INFO L78 Accepts]: Start accepts. Automaton has 33530 states and 178563 transitions. Word has length 25 [2020-10-15 22:22:38,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:38,557 INFO L481 AbstractCegarLoop]: Abstraction has 33530 states and 178563 transitions. [2020-10-15 22:22:38,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:22:38,558 INFO L276 IsEmpty]: Start isEmpty. Operand 33530 states and 178563 transitions. [2020-10-15 22:22:38,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:38,561 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:38,561 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 22:22:38,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2020-10-15 22:22:38,561 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 22:22:38,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:38,562 INFO L82 PathProgramCache]: Analyzing trace with hash -979488288, now seen corresponding path program 6 times [2020-10-15 22:22:38,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:38,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696473455] [2020-10-15 22:22:38,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:38,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:38,606 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 22:22:38,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696473455] [2020-10-15 22:22:38,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:22:38,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:22:38,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804288626] [2020-10-15 22:22:38,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:22:38,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:38,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:22:38,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:22:38,609 INFO L87 Difference]: Start difference. First operand 33530 states and 178563 transitions. Second operand 9 states. [2020-10-15 22:22:39,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:39,796 INFO L93 Difference]: Finished difference Result 116966 states and 531912 transitions. [2020-10-15 22:22:39,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:22:39,797 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:22:39,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:40,164 INFO L225 Difference]: With dead ends: 116966 [2020-10-15 22:22:40,164 INFO L226 Difference]: Without dead ends: 116926 [2020-10-15 22:22:40,164 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 22:22:41,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116926 states. [2020-10-15 22:22:42,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116926 to 32557. [2020-10-15 22:22:42,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32557 states. [2020-10-15 22:22:43,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32557 states to 32557 states and 173592 transitions. [2020-10-15 22:22:43,106 INFO L78 Accepts]: Start accepts. Automaton has 32557 states and 173592 transitions. Word has length 25 [2020-10-15 22:22:43,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:43,106 INFO L481 AbstractCegarLoop]: Abstraction has 32557 states and 173592 transitions. [2020-10-15 22:22:43,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:22:43,106 INFO L276 IsEmpty]: Start isEmpty. Operand 32557 states and 173592 transitions. [2020-10-15 22:22:43,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:43,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:43,108 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 22:22:43,108 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2020-10-15 22:22:43,108 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 22:22:43,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:43,109 INFO L82 PathProgramCache]: Analyzing trace with hash -979464821, now seen corresponding path program 3 times [2020-10-15 22:22:43,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:43,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489254479] [2020-10-15 22:22:43,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:43,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:43,158 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 22:22:43,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489254479] [2020-10-15 22:22:43,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:22:43,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:22:43,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677099996] [2020-10-15 22:22:43,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:22:43,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:43,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:22:43,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:22:43,159 INFO L87 Difference]: Start difference. First operand 32557 states and 173592 transitions. Second operand 9 states. [2020-10-15 22:22:44,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:44,270 INFO L93 Difference]: Finished difference Result 116421 states and 530054 transitions. [2020-10-15 22:22:44,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:22:44,271 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:22:44,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:44,599 INFO L225 Difference]: With dead ends: 116421 [2020-10-15 22:22:44,600 INFO L226 Difference]: Without dead ends: 116391 [2020-10-15 22:22:44,600 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 22:22:45,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116391 states. [2020-10-15 22:22:46,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116391 to 32226. [2020-10-15 22:22:46,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32226 states. [2020-10-15 22:22:46,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32226 states to 32226 states and 171898 transitions. [2020-10-15 22:22:46,936 INFO L78 Accepts]: Start accepts. Automaton has 32226 states and 171898 transitions. Word has length 25 [2020-10-15 22:22:46,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:46,936 INFO L481 AbstractCegarLoop]: Abstraction has 32226 states and 171898 transitions. [2020-10-15 22:22:46,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:22:46,936 INFO L276 IsEmpty]: Start isEmpty. Operand 32226 states and 171898 transitions. [2020-10-15 22:22:46,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:46,938 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:46,938 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 22:22:46,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2020-10-15 22:22:46,938 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 22:22:46,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:46,939 INFO L82 PathProgramCache]: Analyzing trace with hash -958277096, now seen corresponding path program 4 times [2020-10-15 22:22:46,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:46,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170228646] [2020-10-15 22:22:46,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:46,985 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 22:22:46,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170228646] [2020-10-15 22:22:46,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:22:46,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:22:46,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968549654] [2020-10-15 22:22:46,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:22:46,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:46,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:22:46,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:22:46,988 INFO L87 Difference]: Start difference. First operand 32226 states and 171898 transitions. Second operand 9 states. [2020-10-15 22:22:48,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:48,166 INFO L93 Difference]: Finished difference Result 116502 states and 530595 transitions. [2020-10-15 22:22:48,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:22:48,167 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:22:48,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:48,496 INFO L225 Difference]: With dead ends: 116502 [2020-10-15 22:22:48,496 INFO L226 Difference]: Without dead ends: 116462 [2020-10-15 22:22:48,496 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 22:22:50,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116462 states. [2020-10-15 22:22:51,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116462 to 32188. [2020-10-15 22:22:51,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32188 states. [2020-10-15 22:22:51,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32188 states to 32188 states and 171558 transitions. [2020-10-15 22:22:51,395 INFO L78 Accepts]: Start accepts. Automaton has 32188 states and 171558 transitions. Word has length 25 [2020-10-15 22:22:51,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:51,395 INFO L481 AbstractCegarLoop]: Abstraction has 32188 states and 171558 transitions. [2020-10-15 22:22:51,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:22:51,396 INFO L276 IsEmpty]: Start isEmpty. Operand 32188 states and 171558 transitions. [2020-10-15 22:22:51,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:51,398 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:51,398 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 22:22:51,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2020-10-15 22:22:51,398 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 22:22:51,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:51,399 INFO L82 PathProgramCache]: Analyzing trace with hash -958275701, now seen corresponding path program 4 times [2020-10-15 22:22:51,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:51,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953195184] [2020-10-15 22:22:51,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:51,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:51,451 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 22:22:51,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953195184] [2020-10-15 22:22:51,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:22:51,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:22:51,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779074836] [2020-10-15 22:22:51,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:22:51,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:51,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:22:51,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:22:51,452 INFO L87 Difference]: Start difference. First operand 32188 states and 171558 transitions. Second operand 9 states. [2020-10-15 22:22:52,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:52,673 INFO L93 Difference]: Finished difference Result 115555 states and 526107 transitions. [2020-10-15 22:22:52,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:22:52,673 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:22:52,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:53,004 INFO L225 Difference]: With dead ends: 115555 [2020-10-15 22:22:53,004 INFO L226 Difference]: Without dead ends: 115515 [2020-10-15 22:22:53,005 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 22:22:54,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115515 states. [2020-10-15 22:22:55,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115515 to 31998. [2020-10-15 22:22:55,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31998 states. [2020-10-15 22:22:55,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31998 states to 31998 states and 170450 transitions. [2020-10-15 22:22:55,468 INFO L78 Accepts]: Start accepts. Automaton has 31998 states and 170450 transitions. Word has length 25 [2020-10-15 22:22:55,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:55,468 INFO L481 AbstractCegarLoop]: Abstraction has 31998 states and 170450 transitions. [2020-10-15 22:22:55,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:22:55,468 INFO L276 IsEmpty]: Start isEmpty. Operand 31998 states and 170450 transitions. [2020-10-15 22:22:55,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:55,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:55,470 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:22:55,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2020-10-15 22:22:55,471 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 22:22:55,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:55,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1698987747, now seen corresponding path program 1 times [2020-10-15 22:22:55,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:55,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054299498] [2020-10-15 22:22:55,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:55,489 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 22:22:55,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054299498] [2020-10-15 22:22:55,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:22:55,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:22:55,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602923996] [2020-10-15 22:22:55,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:22:55,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:55,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:22:55,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:22:55,491 INFO L87 Difference]: Start difference. First operand 31998 states and 170450 transitions. Second operand 5 states. [2020-10-15 22:22:55,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:55,857 INFO L93 Difference]: Finished difference Result 56734 states and 290623 transitions. [2020-10-15 22:22:55,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:22:55,858 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-15 22:22:55,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:56,028 INFO L225 Difference]: With dead ends: 56734 [2020-10-15 22:22:56,029 INFO L226 Difference]: Without dead ends: 56671 [2020-10-15 22:22:56,029 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 22:22:56,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56671 states. [2020-10-15 22:22:57,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56671 to 40400. [2020-10-15 22:22:57,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40400 states. [2020-10-15 22:22:57,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40400 states to 40400 states and 215336 transitions. [2020-10-15 22:22:57,642 INFO L78 Accepts]: Start accepts. Automaton has 40400 states and 215336 transitions. Word has length 25 [2020-10-15 22:22:57,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:57,643 INFO L481 AbstractCegarLoop]: Abstraction has 40400 states and 215336 transitions. [2020-10-15 22:22:57,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:22:57,643 INFO L276 IsEmpty]: Start isEmpty. Operand 40400 states and 215336 transitions. [2020-10-15 22:22:57,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:57,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:57,645 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 22:22:57,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2020-10-15 22:22:57,645 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 22:22:57,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:57,646 INFO L82 PathProgramCache]: Analyzing trace with hash -670679464, now seen corresponding path program 5 times [2020-10-15 22:22:57,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:57,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923656654] [2020-10-15 22:22:57,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:57,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:57,690 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 22:22:57,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923656654] [2020-10-15 22:22:57,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:22:57,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:22:57,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091444744] [2020-10-15 22:22:57,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:22:57,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:57,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:22:57,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:22:57,692 INFO L87 Difference]: Start difference. First operand 40400 states and 215336 transitions. Second operand 9 states. [2020-10-15 22:22:59,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:59,267 INFO L93 Difference]: Finished difference Result 137449 states and 636138 transitions. [2020-10-15 22:22:59,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:22:59,267 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:22:59,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:59,663 INFO L225 Difference]: With dead ends: 137449 [2020-10-15 22:22:59,663 INFO L226 Difference]: Without dead ends: 137407 [2020-10-15 22:22:59,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:23:00,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137407 states. [2020-10-15 22:23:02,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137407 to 39840. [2020-10-15 22:23:02,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39840 states. [2020-10-15 22:23:02,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39840 states to 39840 states and 212294 transitions. [2020-10-15 22:23:02,584 INFO L78 Accepts]: Start accepts. Automaton has 39840 states and 212294 transitions. Word has length 25 [2020-10-15 22:23:02,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:23:02,584 INFO L481 AbstractCegarLoop]: Abstraction has 39840 states and 212294 transitions. [2020-10-15 22:23:02,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:23:02,584 INFO L276 IsEmpty]: Start isEmpty. Operand 39840 states and 212294 transitions. [2020-10-15 22:23:02,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:23:02,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:23:02,586 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 22:23:02,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2020-10-15 22:23:02,586 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 22:23:02,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:23:02,587 INFO L82 PathProgramCache]: Analyzing trace with hash -669338869, now seen corresponding path program 5 times [2020-10-15 22:23:02,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:23:02,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588407100] [2020-10-15 22:23:02,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:23:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:23:02,637 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 22:23:02,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588407100] [2020-10-15 22:23:02,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:23:02,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:23:02,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805800716] [2020-10-15 22:23:02,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:23:02,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:23:02,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:23:02,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:23:02,639 INFO L87 Difference]: Start difference. First operand 39840 states and 212294 transitions. Second operand 9 states. [2020-10-15 22:23:03,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:23:03,880 INFO L93 Difference]: Finished difference Result 136260 states and 629977 transitions. [2020-10-15 22:23:03,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:23:03,880 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:23:03,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:23:04,274 INFO L225 Difference]: With dead ends: 136260 [2020-10-15 22:23:04,275 INFO L226 Difference]: Without dead ends: 136218 [2020-10-15 22:23:04,275 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 22:23:05,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136218 states. [2020-10-15 22:23:07,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136218 to 39457. [2020-10-15 22:23:07,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39457 states. [2020-10-15 22:23:07,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39457 states to 39457 states and 210241 transitions. [2020-10-15 22:23:07,956 INFO L78 Accepts]: Start accepts. Automaton has 39457 states and 210241 transitions. Word has length 25 [2020-10-15 22:23:07,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:23:07,957 INFO L481 AbstractCegarLoop]: Abstraction has 39457 states and 210241 transitions. [2020-10-15 22:23:07,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:23:07,957 INFO L276 IsEmpty]: Start isEmpty. Operand 39457 states and 210241 transitions. [2020-10-15 22:23:07,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:23:07,959 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:23:07,959 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 22:23:07,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2020-10-15 22:23:07,959 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 22:23:07,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:23:07,960 INFO L82 PathProgramCache]: Analyzing trace with hash -684190504, now seen corresponding path program 6 times [2020-10-15 22:23:07,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:23:07,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460849129] [2020-10-15 22:23:07,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:23:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:23:08,007 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 22:23:08,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460849129] [2020-10-15 22:23:08,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:23:08,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:23:08,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60020892] [2020-10-15 22:23:08,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:23:08,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:23:08,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:23:08,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:23:08,009 INFO L87 Difference]: Start difference. First operand 39457 states and 210241 transitions. Second operand 9 states. [2020-10-15 22:23:09,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:23:09,256 INFO L93 Difference]: Finished difference Result 135358 states and 625465 transitions. [2020-10-15 22:23:09,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:23:09,257 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:23:09,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:23:09,645 INFO L225 Difference]: With dead ends: 135358 [2020-10-15 22:23:09,645 INFO L226 Difference]: Without dead ends: 135306 [2020-10-15 22:23:09,645 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 22:23:10,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135306 states. [2020-10-15 22:23:12,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135306 to 38674. [2020-10-15 22:23:12,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38674 states. [2020-10-15 22:23:12,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38674 states to 38674 states and 206150 transitions. [2020-10-15 22:23:12,463 INFO L78 Accepts]: Start accepts. Automaton has 38674 states and 206150 transitions. Word has length 25 [2020-10-15 22:23:12,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:23:12,463 INFO L481 AbstractCegarLoop]: Abstraction has 38674 states and 206150 transitions. [2020-10-15 22:23:12,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:23:12,463 INFO L276 IsEmpty]: Start isEmpty. Operand 38674 states and 206150 transitions. [2020-10-15 22:23:12,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:23:12,465 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:23:12,465 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 22:23:12,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2020-10-15 22:23:12,465 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 22:23:12,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:23:12,466 INFO L82 PathProgramCache]: Analyzing trace with hash -684189109, now seen corresponding path program 6 times [2020-10-15 22:23:12,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:23:12,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468726924] [2020-10-15 22:23:12,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:23:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:23:12,514 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 22:23:12,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468726924] [2020-10-15 22:23:12,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:23:12,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:23:12,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287714643] [2020-10-15 22:23:12,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:23:12,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:23:12,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:23:12,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:23:12,517 INFO L87 Difference]: Start difference. First operand 38674 states and 206150 transitions. Second operand 9 states. [2020-10-15 22:23:13,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:23:13,768 INFO L93 Difference]: Finished difference Result 134089 states and 619317 transitions. [2020-10-15 22:23:13,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:23:13,768 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:23:13,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:23:14,155 INFO L225 Difference]: With dead ends: 134089 [2020-10-15 22:23:14,156 INFO L226 Difference]: Without dead ends: 134037 [2020-10-15 22:23:14,156 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 22:23:15,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134037 states. [2020-10-15 22:23:17,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134037 to 37675. [2020-10-15 22:23:17,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37675 states. [2020-10-15 22:23:17,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37675 states to 37675 states and 201015 transitions. [2020-10-15 22:23:17,573 INFO L78 Accepts]: Start accepts. Automaton has 37675 states and 201015 transitions. Word has length 25 [2020-10-15 22:23:17,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:23:17,574 INFO L481 AbstractCegarLoop]: Abstraction has 37675 states and 201015 transitions. [2020-10-15 22:23:17,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:23:17,574 INFO L276 IsEmpty]: Start isEmpty. Operand 37675 states and 201015 transitions. [2020-10-15 22:23:17,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:23:17,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:23:17,577 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 22:23:17,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2020-10-15 22:23:17,577 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 22:23:17,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:23:17,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1444696671, now seen corresponding path program 1 times [2020-10-15 22:23:17,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:23:17,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998146611] [2020-10-15 22:23:17,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:23:17,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:23:17,616 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 22:23:17,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998146611] [2020-10-15 22:23:17,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638552700] [2020-10-15 22:23:17,617 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 22:23:17,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:23:17,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:23:17,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:23:17,724 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 22:23:17,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:23:17,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:23:17,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91461501] [2020-10-15 22:23:17,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:23:17,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:23:17,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:23:17,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:23:17,725 INFO L87 Difference]: Start difference. First operand 37675 states and 201015 transitions. Second operand 9 states. [2020-10-15 22:23:18,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:23:18,415 INFO L93 Difference]: Finished difference Result 85349 states and 414605 transitions. [2020-10-15 22:23:18,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:23:18,416 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-10-15 22:23:18,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:23:18,671 INFO L225 Difference]: With dead ends: 85349 [2020-10-15 22:23:18,671 INFO L226 Difference]: Without dead ends: 85301 [2020-10-15 22:23:18,672 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 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 22:23:19,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85301 states. [2020-10-15 22:23:20,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85301 to 38836. [2020-10-15 22:23:20,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38836 states. [2020-10-15 22:23:20,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38836 states to 38836 states and 206710 transitions. [2020-10-15 22:23:20,731 INFO L78 Accepts]: Start accepts. Automaton has 38836 states and 206710 transitions. Word has length 27 [2020-10-15 22:23:20,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:23:20,731 INFO L481 AbstractCegarLoop]: Abstraction has 38836 states and 206710 transitions. [2020-10-15 22:23:20,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:23:20,731 INFO L276 IsEmpty]: Start isEmpty. Operand 38836 states and 206710 transitions. [2020-10-15 22:23:20,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:23:20,735 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:23:20,735 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 22:23:20,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable117 [2020-10-15 22:23:20,949 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 22:23:20,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:23:20,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1707919879, now seen corresponding path program 1 times [2020-10-15 22:23:20,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:23:20,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213532471] [2020-10-15 22:23:20,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:23:20,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:23:21,014 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 22:23:21,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213532471] [2020-10-15 22:23:21,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141189908] [2020-10-15 22:23:21,015 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 22:23:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:23:21,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 22:23:21,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:23:21,128 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 22:23:21,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:23:21,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 22:23:21,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589881024] [2020-10-15 22:23:21,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 22:23:21,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:23:21,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 22:23:21,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 22:23:21,129 INFO L87 Difference]: Start difference. First operand 38836 states and 206710 transitions. Second operand 13 states. [2020-10-15 22:23:23,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:23:23,652 INFO L93 Difference]: Finished difference Result 184520 states and 806691 transitions. [2020-10-15 22:23:23,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:23:23,652 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 22:23:23,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:23:24,155 INFO L225 Difference]: With dead ends: 184520 [2020-10-15 22:23:24,156 INFO L226 Difference]: Without dead ends: 184502 [2020-10-15 22:23:24,156 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 22:23:25,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184502 states. [2020-10-15 22:23:28,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184502 to 38937. [2020-10-15 22:23:28,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38937 states. [2020-10-15 22:23:28,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38937 states to 38937 states and 207195 transitions. [2020-10-15 22:23:28,550 INFO L78 Accepts]: Start accepts. Automaton has 38937 states and 207195 transitions. Word has length 27 [2020-10-15 22:23:28,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:23:28,550 INFO L481 AbstractCegarLoop]: Abstraction has 38937 states and 207195 transitions. [2020-10-15 22:23:28,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 22:23:28,550 INFO L276 IsEmpty]: Start isEmpty. Operand 38937 states and 207195 transitions. [2020-10-15 22:23:28,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:23:28,554 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:23:28,554 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 22:23:28,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable118 [2020-10-15 22:23:28,755 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 22:23:28,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:23:28,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1671880519, now seen corresponding path program 2 times [2020-10-15 22:23:28,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:23:28,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819267738] [2020-10-15 22:23:28,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:23:28,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:23:28,821 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 22:23:28,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819267738] [2020-10-15 22:23:28,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266459946] [2020-10-15 22:23:28,822 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 22:23:28,908 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:23:28,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:23:28,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 22:23:28,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:23:28,943 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 22:23:28,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:23:28,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 22:23:28,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209457565] [2020-10-15 22:23:28,944 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 22:23:28,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:23:28,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 22:23:28,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 22:23:28,944 INFO L87 Difference]: Start difference. First operand 38937 states and 207195 transitions. Second operand 13 states. [2020-10-15 22:23:31,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:23:31,565 INFO L93 Difference]: Finished difference Result 184111 states and 804949 transitions. [2020-10-15 22:23:31,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:23:31,566 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 22:23:31,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:23:32,065 INFO L225 Difference]: With dead ends: 184111 [2020-10-15 22:23:32,065 INFO L226 Difference]: Without dead ends: 184087 [2020-10-15 22:23:32,066 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 22:23:33,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184087 states. [2020-10-15 22:23:36,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184087 to 38705. [2020-10-15 22:23:36,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38705 states. [2020-10-15 22:23:36,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38705 states to 38705 states and 205959 transitions. [2020-10-15 22:23:36,639 INFO L78 Accepts]: Start accepts. Automaton has 38705 states and 205959 transitions. Word has length 27 [2020-10-15 22:23:36,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:23:36,639 INFO L481 AbstractCegarLoop]: Abstraction has 38705 states and 205959 transitions. [2020-10-15 22:23:36,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 22:23:36,639 INFO L276 IsEmpty]: Start isEmpty. Operand 38705 states and 205959 transitions. [2020-10-15 22:23:36,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:23:36,643 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:23:36,643 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 22:23:36,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:23:36,844 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 22:23:36,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:23:36,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1200868665, now seen corresponding path program 3 times [2020-10-15 22:23:36,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:23:36,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077093853] [2020-10-15 22:23:36,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:23:36,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:23:36,913 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 22:23:36,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077093853] [2020-10-15 22:23:36,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362815196] [2020-10-15 22:23:36,914 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 22:23:37,002 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-10-15 22:23:37,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:23:37,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 22:23:37,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:23:37,027 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 22:23:37,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:23:37,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 22:23:37,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138946571] [2020-10-15 22:23:37,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 22:23:37,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:23:37,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 22:23:37,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 22:23:37,029 INFO L87 Difference]: Start difference. First operand 38705 states and 205959 transitions. Second operand 13 states. [2020-10-15 22:23:39,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:23:39,516 INFO L93 Difference]: Finished difference Result 183485 states and 802028 transitions. [2020-10-15 22:23:39,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:23:39,517 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 22:23:39,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:23:40,014 INFO L225 Difference]: With dead ends: 183485 [2020-10-15 22:23:40,014 INFO L226 Difference]: Without dead ends: 183467 [2020-10-15 22:23:40,015 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 22:23:41,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183467 states. [2020-10-15 22:23:43,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183467 to 38802. [2020-10-15 22:23:43,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38802 states. [2020-10-15 22:23:43,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38802 states to 38802 states and 206432 transitions. [2020-10-15 22:23:43,697 INFO L78 Accepts]: Start accepts. Automaton has 38802 states and 206432 transitions. Word has length 27 [2020-10-15 22:23:43,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:23:43,697 INFO L481 AbstractCegarLoop]: Abstraction has 38802 states and 206432 transitions. [2020-10-15 22:23:43,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 22:23:43,697 INFO L276 IsEmpty]: Start isEmpty. Operand 38802 states and 206432 transitions. [2020-10-15 22:23:43,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:23:43,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:23:43,701 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 22:23:43,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120,49 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:23:43,901 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 22:23:43,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:23:43,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1222057785, now seen corresponding path program 4 times [2020-10-15 22:23:43,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:23:43,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892447503] [2020-10-15 22:23:43,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:23:43,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:23:43,965 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 22:23:43,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892447503] [2020-10-15 22:23:43,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135338257] [2020-10-15 22:23:43,966 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 22:23:44,054 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 22:23:44,054 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:23:44,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 22:23:44,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:23:44,078 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 22:23:44,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:23:44,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 22:23:44,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247475734] [2020-10-15 22:23:44,079 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 22:23:44,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:23:44,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 22:23:44,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 22:23:44,079 INFO L87 Difference]: Start difference. First operand 38802 states and 206432 transitions. Second operand 13 states. [2020-10-15 22:23:46,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:23:46,896 INFO L93 Difference]: Finished difference Result 183194 states and 800691 transitions. [2020-10-15 22:23:46,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:23:46,897 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 22:23:46,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:23:47,395 INFO L225 Difference]: With dead ends: 183194 [2020-10-15 22:23:47,395 INFO L226 Difference]: Without dead ends: 183170 [2020-10-15 22:23:47,396 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 22:23:48,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183170 states. [2020-10-15 22:23:50,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183170 to 38578. [2020-10-15 22:23:50,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38578 states. [2020-10-15 22:23:51,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38578 states to 38578 states and 205224 transitions. [2020-10-15 22:23:51,083 INFO L78 Accepts]: Start accepts. Automaton has 38578 states and 205224 transitions. Word has length 27 [2020-10-15 22:23:51,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:23:51,083 INFO L481 AbstractCegarLoop]: Abstraction has 38578 states and 205224 transitions. [2020-10-15 22:23:51,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 22:23:51,083 INFO L276 IsEmpty]: Start isEmpty. Operand 38578 states and 205224 transitions. [2020-10-15 22:23:51,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:23:51,087 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:23:51,087 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 22:23:51,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121,50 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:23:51,288 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 22:23:51,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:23:51,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1510994617, now seen corresponding path program 5 times [2020-10-15 22:23:51,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:23:51,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227842518] [2020-10-15 22:23:51,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:23:51,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:23:51,353 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 22:23:51,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227842518] [2020-10-15 22:23:51,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957853233] [2020-10-15 22:23:51,354 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 22:23:51,442 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-10-15 22:23:51,442 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:23:51,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 22:23:51,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:23:51,467 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 22:23:51,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:23:51,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 22:23:51,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902173247] [2020-10-15 22:23:51,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 22:23:51,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:23:51,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 22:23:51,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 22:23:51,468 INFO L87 Difference]: Start difference. First operand 38578 states and 205224 transitions. Second operand 13 states. [2020-10-15 22:23:54,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:23:54,157 INFO L93 Difference]: Finished difference Result 182584 states and 797818 transitions. [2020-10-15 22:23:54,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:23:54,158 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 22:23:54,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:23:55,518 INFO L225 Difference]: With dead ends: 182584 [2020-10-15 22:23:55,518 INFO L226 Difference]: Without dead ends: 182566 [2020-10-15 22:23:55,519 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 22:23:57,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182566 states. [2020-10-15 22:23:58,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182566 to 38683. [2020-10-15 22:23:58,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38683 states. [2020-10-15 22:23:58,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38683 states to 38683 states and 205717 transitions. [2020-10-15 22:23:58,942 INFO L78 Accepts]: Start accepts. Automaton has 38683 states and 205717 transitions. Word has length 27 [2020-10-15 22:23:58,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:23:58,942 INFO L481 AbstractCegarLoop]: Abstraction has 38683 states and 205717 transitions. [2020-10-15 22:23:58,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 22:23:58,942 INFO L276 IsEmpty]: Start isEmpty. Operand 38683 states and 205717 transitions. [2020-10-15 22:23:58,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:23:58,945 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:23:58,946 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 22:23:59,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable122 [2020-10-15 22:23:59,146 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 22:23:59,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:23:59,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1496144377, now seen corresponding path program 6 times [2020-10-15 22:23:59,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:23:59,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816108028] [2020-10-15 22:23:59,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:23:59,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:23:59,216 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 22:23:59,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816108028] [2020-10-15 22:23:59,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602217478] [2020-10-15 22:23:59,217 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 22:23:59,304 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2020-10-15 22:23:59,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:23:59,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 22:23:59,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:23:59,329 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 22:23:59,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:23:59,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 22:23:59,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736532090] [2020-10-15 22:23:59,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 22:23:59,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:23:59,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 22:23:59,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 22:23:59,331 INFO L87 Difference]: Start difference. First operand 38683 states and 205717 transitions. Second operand 13 states. [2020-10-15 22:24:01,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:24:01,783 INFO L93 Difference]: Finished difference Result 182167 states and 796056 transitions. [2020-10-15 22:24:01,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:24:01,784 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 22:24:01,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:24:02,279 INFO L225 Difference]: With dead ends: 182167 [2020-10-15 22:24:02,279 INFO L226 Difference]: Without dead ends: 182139 [2020-10-15 22:24:02,280 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 22:24:03,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182139 states. [2020-10-15 22:24:06,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182139 to 38439. [2020-10-15 22:24:06,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38439 states. [2020-10-15 22:24:06,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38439 states to 38439 states and 204452 transitions. [2020-10-15 22:24:06,707 INFO L78 Accepts]: Start accepts. Automaton has 38439 states and 204452 transitions. Word has length 27 [2020-10-15 22:24:06,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:24:06,707 INFO L481 AbstractCegarLoop]: Abstraction has 38439 states and 204452 transitions. [2020-10-15 22:24:06,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 22:24:06,707 INFO L276 IsEmpty]: Start isEmpty. Operand 38439 states and 204452 transitions. [2020-10-15 22:24:06,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:24:06,711 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:24:06,711 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 22:24:06,911 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable123 [2020-10-15 22:24:06,912 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 22:24:06,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:24:06,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1123724041, now seen corresponding path program 7 times [2020-10-15 22:24:06,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:24:06,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763729798] [2020-10-15 22:24:06,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:24:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:24:06,981 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 22:24:06,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763729798] [2020-10-15 22:24:06,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773250248] [2020-10-15 22:24:06,982 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 22:24:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:24:07,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 22:24:07,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:24:07,102 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 22:24:07,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:24:07,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 22:24:07,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131563114] [2020-10-15 22:24:07,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 22:24:07,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:24:07,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 22:24:07,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 22:24:07,105 INFO L87 Difference]: Start difference. First operand 38439 states and 204452 transitions. Second operand 13 states. [2020-10-15 22:24:09,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:24:09,623 INFO L93 Difference]: Finished difference Result 183258 states and 800935 transitions. [2020-10-15 22:24:09,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:24:09,624 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 22:24:09,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:24:10,124 INFO L225 Difference]: With dead ends: 183258 [2020-10-15 22:24:10,124 INFO L226 Difference]: Without dead ends: 183240 [2020-10-15 22:24:10,125 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 22:24:11,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183240 states. [2020-10-15 22:24:14,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183240 to 38278. [2020-10-15 22:24:14,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38278 states. [2020-10-15 22:24:14,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38278 states to 38278 states and 203659 transitions. [2020-10-15 22:24:14,648 INFO L78 Accepts]: Start accepts. Automaton has 38278 states and 203659 transitions. Word has length 27 [2020-10-15 22:24:14,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:24:14,648 INFO L481 AbstractCegarLoop]: Abstraction has 38278 states and 203659 transitions. [2020-10-15 22:24:14,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 22:24:14,648 INFO L276 IsEmpty]: Start isEmpty. Operand 38278 states and 203659 transitions. [2020-10-15 22:24:14,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:24:14,652 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:24:14,652 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 22:24:14,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable124 [2020-10-15 22:24:14,853 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 22:24:14,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:24:14,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1087684681, now seen corresponding path program 8 times [2020-10-15 22:24:14,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:24:14,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074174516] [2020-10-15 22:24:14,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:24:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:24:14,929 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 22:24:14,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074174516] [2020-10-15 22:24:14,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506971212] [2020-10-15 22:24:14,930 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 22:24:15,018 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:24:15,018 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:24:15,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 22:24:15,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:24:15,045 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 22:24:15,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:24:15,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 22:24:15,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413241076] [2020-10-15 22:24:15,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 22:24:15,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:24:15,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 22:24:15,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 22:24:15,046 INFO L87 Difference]: Start difference. First operand 38278 states and 203659 transitions. Second operand 13 states. [2020-10-15 22:24:17,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:24:17,574 INFO L93 Difference]: Finished difference Result 182849 states and 799193 transitions. [2020-10-15 22:24:17,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:24:17,575 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 22:24:17,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:24:18,070 INFO L225 Difference]: With dead ends: 182849 [2020-10-15 22:24:18,070 INFO L226 Difference]: Without dead ends: 182825 [2020-10-15 22:24:18,071 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 22:24:19,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182825 states. [2020-10-15 22:24:21,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182825 to 37884. [2020-10-15 22:24:21,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37884 states. [2020-10-15 22:24:21,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37884 states to 37884 states and 201622 transitions. [2020-10-15 22:24:21,751 INFO L78 Accepts]: Start accepts. Automaton has 37884 states and 201622 transitions. Word has length 27 [2020-10-15 22:24:21,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:24:21,751 INFO L481 AbstractCegarLoop]: Abstraction has 37884 states and 201622 transitions. [2020-10-15 22:24:21,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 22:24:21,752 INFO L276 IsEmpty]: Start isEmpty. Operand 37884 states and 201622 transitions. [2020-10-15 22:24:21,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:24:21,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:24:21,755 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 22:24:21,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable125 [2020-10-15 22:24:21,956 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 22:24:21,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:24:21,957 INFO L82 PathProgramCache]: Analyzing trace with hash 2028959203, now seen corresponding path program 9 times [2020-10-15 22:24:21,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:24:21,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677978211] [2020-10-15 22:24:21,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:24:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:24:22,030 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 22:24:22,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677978211] [2020-10-15 22:24:22,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654643972] [2020-10-15 22:24:22,031 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 22:24:22,126 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-15 22:24:22,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:24:22,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 22:24:22,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:24:22,155 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 22:24:22,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:24:22,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 22:24:22,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337818503] [2020-10-15 22:24:22,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 22:24:22,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:24:22,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 22:24:22,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 22:24:22,157 INFO L87 Difference]: Start difference. First operand 37884 states and 201622 transitions. Second operand 13 states. [2020-10-15 22:24:25,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:24:25,009 INFO L93 Difference]: Finished difference Result 183773 states and 803153 transitions. [2020-10-15 22:24:25,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:24:25,009 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 22:24:25,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:24:25,513 INFO L225 Difference]: With dead ends: 183773 [2020-10-15 22:24:25,513 INFO L226 Difference]: Without dead ends: 183755 [2020-10-15 22:24:25,513 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1612 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-10-15 22:24:27,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183755 states. [2020-10-15 22:24:29,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183755 to 37981. [2020-10-15 22:24:29,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37981 states. [2020-10-15 22:24:29,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37981 states to 37981 states and 202095 transitions. [2020-10-15 22:24:29,209 INFO L78 Accepts]: Start accepts. Automaton has 37981 states and 202095 transitions. Word has length 27 [2020-10-15 22:24:29,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:24:29,210 INFO L481 AbstractCegarLoop]: Abstraction has 37981 states and 202095 transitions. [2020-10-15 22:24:29,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 22:24:29,210 INFO L276 IsEmpty]: Start isEmpty. Operand 37981 states and 202095 transitions. [2020-10-15 22:24:29,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:24:29,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:24:29,215 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 22:24:29,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable126 [2020-10-15 22:24:29,430 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 22:24:29,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:24:29,430 INFO L82 PathProgramCache]: Analyzing trace with hash 2051487523, now seen corresponding path program 10 times [2020-10-15 22:24:29,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:24:29,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553833405] [2020-10-15 22:24:29,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:24:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:24:29,500 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 22:24:29,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553833405] [2020-10-15 22:24:29,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798896974] [2020-10-15 22:24:29,500 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 22:24:29,588 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 22:24:29,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:24:29,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 22:24:29,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:24:29,613 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 22:24:29,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:24:29,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 22:24:29,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142601454] [2020-10-15 22:24:29,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 22:24:29,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:24:29,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 22:24:29,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 22:24:29,614 INFO L87 Difference]: Start difference. First operand 37981 states and 202095 transitions. Second operand 13 states. [2020-10-15 22:24:32,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:24:32,267 INFO L93 Difference]: Finished difference Result 184574 states and 806606 transitions. [2020-10-15 22:24:32,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:24:32,268 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 22:24:32,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:24:33,599 INFO L225 Difference]: With dead ends: 184574 [2020-10-15 22:24:33,600 INFO L226 Difference]: Without dead ends: 184550 [2020-10-15 22:24:33,600 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 22:24:35,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184550 states. [2020-10-15 22:24:37,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184550 to 37723. [2020-10-15 22:24:37,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37723 states. [2020-10-15 22:24:37,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37723 states to 37723 states and 200669 transitions. [2020-10-15 22:24:37,164 INFO L78 Accepts]: Start accepts. Automaton has 37723 states and 200669 transitions. Word has length 27 [2020-10-15 22:24:37,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:24:37,164 INFO L481 AbstractCegarLoop]: Abstraction has 37723 states and 200669 transitions. [2020-10-15 22:24:37,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 22:24:37,164 INFO L276 IsEmpty]: Start isEmpty. Operand 37723 states and 200669 transitions. [2020-10-15 22:24:37,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:24:37,168 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:24:37,168 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 22:24:37,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:24:37,376 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 22:24:37,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:24:37,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1310776872, now seen corresponding path program 1 times [2020-10-15 22:24:37,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:24:37,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883381249] [2020-10-15 22:24:37,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:24:37,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:24:37,410 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 22:24:37,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883381249] [2020-10-15 22:24:37,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823233469] [2020-10-15 22:24:37,411 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 22:24:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:24:37,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:24:37,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:24:37,514 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 22:24:37,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:24:37,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:24:37,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663028348] [2020-10-15 22:24:37,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:24:37,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:24:37,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:24:37,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:24:37,516 INFO L87 Difference]: Start difference. First operand 37723 states and 200669 transitions. Second operand 9 states. [2020-10-15 22:24:38,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:24:38,214 INFO L93 Difference]: Finished difference Result 87418 states and 424333 transitions. [2020-10-15 22:24:38,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:24:38,215 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-10-15 22:24:38,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:24:38,510 INFO L225 Difference]: With dead ends: 87418 [2020-10-15 22:24:38,511 INFO L226 Difference]: Without dead ends: 87366 [2020-10-15 22:24:38,511 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 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 22:24:39,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87366 states. [2020-10-15 22:24:40,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87366 to 39181. [2020-10-15 22:24:40,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39181 states. [2020-10-15 22:24:40,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39181 states to 39181 states and 208301 transitions. [2020-10-15 22:24:40,634 INFO L78 Accepts]: Start accepts. Automaton has 39181 states and 208301 transitions. Word has length 27 [2020-10-15 22:24:40,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:24:40,634 INFO L481 AbstractCegarLoop]: Abstraction has 39181 states and 208301 transitions. [2020-10-15 22:24:40,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:24:40,634 INFO L276 IsEmpty]: Start isEmpty. Operand 39181 states and 208301 transitions. [2020-10-15 22:24:40,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:24:40,638 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:24:40,638 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 22:24:40,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable128 [2020-10-15 22:24:40,839 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 22:24:40,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:24:40,840 INFO L82 PathProgramCache]: Analyzing trace with hash -1955882141, now seen corresponding path program 11 times [2020-10-15 22:24:40,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:24:40,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056724052] [2020-10-15 22:24:40,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:24:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:24:41,483 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 22:24:41,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056724052] [2020-10-15 22:24:41,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276356096] [2020-10-15 22:24:41,483 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 22:24:41,572 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-10-15 22:24:41,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:24:41,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 22:24:41,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:24:41,595 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 22:24:41,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:24:41,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 22:24:41,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720489331] [2020-10-15 22:24:41,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 22:24:41,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:24:41,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 22:24:41,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 22:24:41,596 INFO L87 Difference]: Start difference. First operand 39181 states and 208301 transitions. Second operand 13 states. [2020-10-15 22:24:44,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:24:44,097 INFO L93 Difference]: Finished difference Result 181204 states and 790360 transitions. [2020-10-15 22:24:44,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:24:44,098 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 22:24:44,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:24:44,592 INFO L225 Difference]: With dead ends: 181204 [2020-10-15 22:24:44,592 INFO L226 Difference]: Without dead ends: 181186 [2020-10-15 22:24:44,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1592 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-10-15 22:24:46,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181186 states. [2020-10-15 22:24:48,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181186 to 39282. [2020-10-15 22:24:48,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39282 states. [2020-10-15 22:24:48,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39282 states to 39282 states and 208786 transitions. [2020-10-15 22:24:48,198 INFO L78 Accepts]: Start accepts. Automaton has 39282 states and 208786 transitions. Word has length 27 [2020-10-15 22:24:48,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:24:48,199 INFO L481 AbstractCegarLoop]: Abstraction has 39282 states and 208786 transitions. [2020-10-15 22:24:48,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 22:24:48,199 INFO L276 IsEmpty]: Start isEmpty. Operand 39282 states and 208786 transitions. [2020-10-15 22:24:48,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:24:48,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:24:48,203 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 22:24:48,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:24:48,409 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 22:24:48,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:24:48,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1969393181, now seen corresponding path program 12 times [2020-10-15 22:24:48,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:24:48,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935356750] [2020-10-15 22:24:48,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:24:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:24:48,479 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 22:24:48,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935356750] [2020-10-15 22:24:48,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044748418] [2020-10-15 22:24:48,480 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 22:24:48,570 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2020-10-15 22:24:48,571 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:24:48,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 22:24:48,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:24:48,596 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 22:24:48,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:24:48,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 22:24:48,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065225675] [2020-10-15 22:24:48,597 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 22:24:48,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:24:48,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 22:24:48,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 22:24:48,597 INFO L87 Difference]: Start difference. First operand 39282 states and 208786 transitions. Second operand 13 states. [2020-10-15 22:24:51,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:24:51,808 INFO L93 Difference]: Finished difference Result 181788 states and 792986 transitions. [2020-10-15 22:24:51,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:24:51,808 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 22:24:51,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:24:52,314 INFO L225 Difference]: With dead ends: 181788 [2020-10-15 22:24:52,314 INFO L226 Difference]: Without dead ends: 181760 [2020-10-15 22:24:52,314 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 22:24:53,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181760 states. [2020-10-15 22:24:55,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181760 to 39046. [2020-10-15 22:24:55,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39046 states. [2020-10-15 22:24:55,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39046 states to 39046 states and 207541 transitions. [2020-10-15 22:24:55,869 INFO L78 Accepts]: Start accepts. Automaton has 39046 states and 207541 transitions. Word has length 27 [2020-10-15 22:24:55,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:24:55,870 INFO L481 AbstractCegarLoop]: Abstraction has 39046 states and 207541 transitions. [2020-10-15 22:24:55,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 22:24:55,870 INFO L276 IsEmpty]: Start isEmpty. Operand 39046 states and 207541 transitions. [2020-10-15 22:24:55,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:24:55,876 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:24:55,876 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 22:24:56,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable130 [2020-10-15 22:24:56,091 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 22:24:56,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:24:56,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1977356605, now seen corresponding path program 13 times [2020-10-15 22:24:56,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:24:56,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928540701] [2020-10-15 22:24:56,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:24:56,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:24:56,162 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 22:24:56,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928540701] [2020-10-15 22:24:56,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:24:56,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 22:24:56,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498871751] [2020-10-15 22:24:56,164 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:24:56,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:24:56,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:24:56,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:24:56,164 INFO L87 Difference]: Start difference. First operand 39046 states and 207541 transitions. Second operand 11 states. [2020-10-15 22:24:58,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:24:58,676 INFO L93 Difference]: Finished difference Result 182119 states and 794828 transitions. [2020-10-15 22:24:58,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:24:58,677 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 22:24:58,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:24:59,177 INFO L225 Difference]: With dead ends: 182119 [2020-10-15 22:24:59,177 INFO L226 Difference]: Without dead ends: 182101 [2020-10-15 22:24:59,178 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 22:25:01,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182101 states. [2020-10-15 22:25:03,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182101 to 38885. [2020-10-15 22:25:03,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38885 states. [2020-10-15 22:25:03,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38885 states to 38885 states and 206748 transitions. [2020-10-15 22:25:03,506 INFO L78 Accepts]: Start accepts. Automaton has 38885 states and 206748 transitions. Word has length 27 [2020-10-15 22:25:03,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:25:03,506 INFO L481 AbstractCegarLoop]: Abstraction has 38885 states and 206748 transitions. [2020-10-15 22:25:03,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:25:03,506 INFO L276 IsEmpty]: Start isEmpty. Operand 38885 states and 206748 transitions. [2020-10-15 22:25:03,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:25:03,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:25:03,510 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 22:25:03,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2020-10-15 22:25:03,510 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 22:25:03,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:25:03,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1956167485, now seen corresponding path program 14 times [2020-10-15 22:25:03,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:25:03,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469626165] [2020-10-15 22:25:03,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:25:03,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:25:03,582 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 22:25:03,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469626165] [2020-10-15 22:25:03,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:25:03,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 22:25:03,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932607964] [2020-10-15 22:25:03,584 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:25:03,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:25:03,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:25:03,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:25:03,584 INFO L87 Difference]: Start difference. First operand 38885 states and 206748 transitions. Second operand 11 states. [2020-10-15 22:25:06,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:25:06,051 INFO L93 Difference]: Finished difference Result 182770 states and 797712 transitions. [2020-10-15 22:25:06,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:25:06,051 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 22:25:06,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:25:06,555 INFO L225 Difference]: With dead ends: 182770 [2020-10-15 22:25:06,555 INFO L226 Difference]: Without dead ends: 182746 [2020-10-15 22:25:06,556 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 22:25:08,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182746 states. [2020-10-15 22:25:10,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182746 to 38499. [2020-10-15 22:25:10,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38499 states. [2020-10-15 22:25:11,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38499 states to 38499 states and 204735 transitions. [2020-10-15 22:25:11,005 INFO L78 Accepts]: Start accepts. Automaton has 38499 states and 204735 transitions. Word has length 27 [2020-10-15 22:25:11,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:25:11,006 INFO L481 AbstractCegarLoop]: Abstraction has 38499 states and 204735 transitions. [2020-10-15 22:25:11,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:25:11,006 INFO L276 IsEmpty]: Start isEmpty. Operand 38499 states and 204735 transitions. [2020-10-15 22:25:11,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:25:11,010 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:25:11,010 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 22:25:11,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2020-10-15 22:25:11,011 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 22:25:11,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:25:11,011 INFO L82 PathProgramCache]: Analyzing trace with hash -690385405, now seen corresponding path program 15 times [2020-10-15 22:25:11,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:25:11,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35699896] [2020-10-15 22:25:11,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:25:11,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:25:11,080 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 22:25:11,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35699896] [2020-10-15 22:25:11,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:25:11,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 22:25:11,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824055268] [2020-10-15 22:25:11,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:25:11,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:25:11,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:25:11,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:25:11,082 INFO L87 Difference]: Start difference. First operand 38499 states and 204735 transitions. Second operand 11 states. [2020-10-15 22:25:13,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:25:13,549 INFO L93 Difference]: Finished difference Result 181153 states and 790470 transitions. [2020-10-15 22:25:13,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:25:13,550 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 22:25:13,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:25:14,044 INFO L225 Difference]: With dead ends: 181153 [2020-10-15 22:25:14,044 INFO L226 Difference]: Without dead ends: 181135 [2020-10-15 22:25:14,045 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 22:25:15,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181135 states. [2020-10-15 22:25:17,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181135 to 38208. [2020-10-15 22:25:17,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38208 states. [2020-10-15 22:25:17,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38208 states to 38208 states and 203398 transitions. [2020-10-15 22:25:17,623 INFO L78 Accepts]: Start accepts. Automaton has 38208 states and 203398 transitions. Word has length 27 [2020-10-15 22:25:17,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:25:17,624 INFO L481 AbstractCegarLoop]: Abstraction has 38208 states and 203398 transitions. [2020-10-15 22:25:17,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:25:17,624 INFO L276 IsEmpty]: Start isEmpty. Operand 38208 states and 203398 transitions. [2020-10-15 22:25:17,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:25:17,628 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:25:17,628 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 22:25:17,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2020-10-15 22:25:17,628 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 22:25:17,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:25:17,628 INFO L82 PathProgramCache]: Analyzing trace with hash -667857085, now seen corresponding path program 16 times [2020-10-15 22:25:17,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:25:17,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304258379] [2020-10-15 22:25:17,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:25:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:25:17,695 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 22:25:17,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304258379] [2020-10-15 22:25:17,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:25:17,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 22:25:17,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511459622] [2020-10-15 22:25:17,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:25:17,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:25:17,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:25:17,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:25:17,697 INFO L87 Difference]: Start difference. First operand 38208 states and 203398 transitions. Second operand 11 states. [2020-10-15 22:25:20,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:25:20,476 INFO L93 Difference]: Finished difference Result 181957 states and 793915 transitions. [2020-10-15 22:25:20,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:25:20,477 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 22:25:20,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:25:20,979 INFO L225 Difference]: With dead ends: 181957 [2020-10-15 22:25:20,979 INFO L226 Difference]: Without dead ends: 181933 [2020-10-15 22:25:20,979 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 22:25:22,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181933 states. [2020-10-15 22:25:24,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181933 to 37822. [2020-10-15 22:25:24,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37822 states. [2020-10-15 22:25:24,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37822 states to 37822 states and 201385 transitions. [2020-10-15 22:25:24,517 INFO L78 Accepts]: Start accepts. Automaton has 37822 states and 201385 transitions. Word has length 27 [2020-10-15 22:25:24,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:25:24,518 INFO L481 AbstractCegarLoop]: Abstraction has 37822 states and 201385 transitions. [2020-10-15 22:25:24,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:25:24,518 INFO L276 IsEmpty]: Start isEmpty. Operand 37822 states and 201385 transitions. [2020-10-15 22:25:24,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:25:24,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:25:24,522 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 22:25:24,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2020-10-15 22:25:24,522 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 22:25:24,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:25:24,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1485355099, now seen corresponding path program 1 times [2020-10-15 22:25:24,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:25:24,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55140151] [2020-10-15 22:25:24,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:25:24,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:25:24,550 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 22:25:24,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55140151] [2020-10-15 22:25:24,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301738127] [2020-10-15 22:25:24,551 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 22:25:24,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:25:24,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:25:24,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:25:24,654 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 22:25:24,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:25:24,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:25:24,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59191577] [2020-10-15 22:25:24,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:25:24,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:25:24,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:25:24,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:25:24,655 INFO L87 Difference]: Start difference. First operand 37822 states and 201385 transitions. Second operand 9 states. [2020-10-15 22:25:25,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:25:25,374 INFO L93 Difference]: Finished difference Result 90020 states and 438095 transitions. [2020-10-15 22:25:25,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:25:25,375 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-10-15 22:25:25,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:25:25,650 INFO L225 Difference]: With dead ends: 90020 [2020-10-15 22:25:25,651 INFO L226 Difference]: Without dead ends: 89960 [2020-10-15 22:25:25,651 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 22:25:26,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89960 states. [2020-10-15 22:25:28,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89960 to 39411. [2020-10-15 22:25:28,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39411 states. [2020-10-15 22:25:28,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39411 states to 39411 states and 210063 transitions. [2020-10-15 22:25:28,508 INFO L78 Accepts]: Start accepts. Automaton has 39411 states and 210063 transitions. Word has length 27 [2020-10-15 22:25:28,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:25:28,509 INFO L481 AbstractCegarLoop]: Abstraction has 39411 states and 210063 transitions. [2020-10-15 22:25:28,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:25:28,509 INFO L276 IsEmpty]: Start isEmpty. Operand 39411 states and 210063 transitions. [2020-10-15 22:25:28,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:25:28,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:25:28,513 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 22:25:28,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable135 [2020-10-15 22:25:28,714 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 22:25:28,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:25:28,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1781288445, now seen corresponding path program 17 times [2020-10-15 22:25:28,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:25:28,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892144559] [2020-10-15 22:25:28,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:25:28,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:25:28,793 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 22:25:28,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892144559] [2020-10-15 22:25:28,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:25:28,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 22:25:28,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360060979] [2020-10-15 22:25:28,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:25:28,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:25:28,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:25:28,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:25:28,794 INFO L87 Difference]: Start difference. First operand 39411 states and 210063 transitions. Second operand 11 states. [2020-10-15 22:25:31,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:25:31,288 INFO L93 Difference]: Finished difference Result 181463 states and 790579 transitions. [2020-10-15 22:25:31,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:25:31,288 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 22:25:31,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:25:31,792 INFO L225 Difference]: With dead ends: 181463 [2020-10-15 22:25:31,793 INFO L226 Difference]: Without dead ends: 181445 [2020-10-15 22:25:31,793 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 22:25:33,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181445 states. [2020-10-15 22:25:35,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181445 to 39508. [2020-10-15 22:25:35,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39508 states. [2020-10-15 22:25:35,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39508 states to 39508 states and 210536 transitions. [2020-10-15 22:25:35,485 INFO L78 Accepts]: Start accepts. Automaton has 39508 states and 210536 transitions. Word has length 27 [2020-10-15 22:25:35,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:25:35,485 INFO L481 AbstractCegarLoop]: Abstraction has 39508 states and 210536 transitions. [2020-10-15 22:25:35,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:25:35,485 INFO L276 IsEmpty]: Start isEmpty. Operand 39508 states and 210536 transitions. [2020-10-15 22:25:35,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:25:35,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:25:35,490 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 22:25:35,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2020-10-15 22:25:35,490 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 22:25:35,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:25:35,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1779949245, now seen corresponding path program 18 times [2020-10-15 22:25:35,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:25:35,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231692421] [2020-10-15 22:25:35,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:25:35,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:25:35,564 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 22:25:35,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231692421] [2020-10-15 22:25:35,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:25:35,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 22:25:35,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201090670] [2020-10-15 22:25:35,565 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:25:35,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:25:35,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:25:35,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:25:35,566 INFO L87 Difference]: Start difference. First operand 39508 states and 210536 transitions. Second operand 11 states. [2020-10-15 22:25:38,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:25:38,545 INFO L93 Difference]: Finished difference Result 181054 states and 788837 transitions. [2020-10-15 22:25:38,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:25:38,545 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 22:25:38,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:25:39,050 INFO L225 Difference]: With dead ends: 181054 [2020-10-15 22:25:39,050 INFO L226 Difference]: Without dead ends: 181026 [2020-10-15 22:25:39,050 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 22:25:40,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181026 states. [2020-10-15 22:25:42,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181026 to 39280. [2020-10-15 22:25:42,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39280 states. [2020-10-15 22:25:42,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39280 states to 39280 states and 209319 transitions. [2020-10-15 22:25:42,746 INFO L78 Accepts]: Start accepts. Automaton has 39280 states and 209319 transitions. Word has length 27 [2020-10-15 22:25:42,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:25:42,746 INFO L481 AbstractCegarLoop]: Abstraction has 39280 states and 209319 transitions. [2020-10-15 22:25:42,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:25:42,747 INFO L276 IsEmpty]: Start isEmpty. Operand 39280 states and 209319 transitions. [2020-10-15 22:25:42,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:25:42,751 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:25:42,751 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 22:25:42,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2020-10-15 22:25:42,751 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 22:25:42,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:25:42,752 INFO L82 PathProgramCache]: Analyzing trace with hash -639654315, now seen corresponding path program 2 times [2020-10-15 22:25:42,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:25:42,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12093746] [2020-10-15 22:25:42,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:25:42,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:25:42,784 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 22:25:42,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12093746] [2020-10-15 22:25:42,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:25:42,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:25:42,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51706395] [2020-10-15 22:25:42,785 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:25:42,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:25:42,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:25:42,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:25:42,786 INFO L87 Difference]: Start difference. First operand 39280 states and 209319 transitions. Second operand 7 states. [2020-10-15 22:25:43,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:25:43,484 INFO L93 Difference]: Finished difference Result 90032 states and 438659 transitions. [2020-10-15 22:25:43,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:25:43,484 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-15 22:25:43,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:25:43,755 INFO L225 Difference]: With dead ends: 90032 [2020-10-15 22:25:43,755 INFO L226 Difference]: Without dead ends: 89955 [2020-10-15 22:25:43,755 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 22:25:44,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89955 states. [2020-10-15 22:25:46,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89955 to 40208. [2020-10-15 22:25:46,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40208 states. [2020-10-15 22:25:46,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40208 states to 40208 states and 214272 transitions. [2020-10-15 22:25:46,528 INFO L78 Accepts]: Start accepts. Automaton has 40208 states and 214272 transitions. Word has length 27 [2020-10-15 22:25:46,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:25:46,528 INFO L481 AbstractCegarLoop]: Abstraction has 40208 states and 214272 transitions. [2020-10-15 22:25:46,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:25:46,528 INFO L276 IsEmpty]: Start isEmpty. Operand 40208 states and 214272 transitions. [2020-10-15 22:25:46,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:25:46,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:25:46,533 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 22:25:46,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2020-10-15 22:25:46,533 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 22:25:46,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:25:46,534 INFO L82 PathProgramCache]: Analyzing trace with hash -639652920, now seen corresponding path program 2 times [2020-10-15 22:25:46,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:25:46,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177931446] [2020-10-15 22:25:46,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:25:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:25:46,568 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 22:25:46,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177931446] [2020-10-15 22:25:46,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:25:46,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:25:46,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980915966] [2020-10-15 22:25:46,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:25:46,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:25:46,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:25:46,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:25:46,570 INFO L87 Difference]: Start difference. First operand 40208 states and 214272 transitions. Second operand 7 states. [2020-10-15 22:25:47,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:25:47,250 INFO L93 Difference]: Finished difference Result 90501 states and 440366 transitions. [2020-10-15 22:25:47,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:25:47,251 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-15 22:25:47,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:25:47,527 INFO L225 Difference]: With dead ends: 90501 [2020-10-15 22:25:47,527 INFO L226 Difference]: Without dead ends: 90424 [2020-10-15 22:25:47,527 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 22:25:48,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90424 states. [2020-10-15 22:25:49,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90424 to 40817. [2020-10-15 22:25:49,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40817 states. [2020-10-15 22:25:49,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40817 states to 40817 states and 217501 transitions. [2020-10-15 22:25:49,689 INFO L78 Accepts]: Start accepts. Automaton has 40817 states and 217501 transitions. Word has length 27 [2020-10-15 22:25:49,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:25:49,689 INFO L481 AbstractCegarLoop]: Abstraction has 40817 states and 217501 transitions. [2020-10-15 22:25:49,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:25:49,689 INFO L276 IsEmpty]: Start isEmpty. Operand 40817 states and 217501 transitions. [2020-10-15 22:25:49,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:25:49,694 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:25:49,694 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 22:25:49,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2020-10-15 22:25:49,694 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 22:25:49,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:25:49,695 INFO L82 PathProgramCache]: Analyzing trace with hash -639668389, now seen corresponding path program 2 times [2020-10-15 22:25:49,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:25:49,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563367570] [2020-10-15 22:25:49,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:25:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:25:49,724 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 22:25:49,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563367570] [2020-10-15 22:25:49,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:25:49,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:25:49,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828116340] [2020-10-15 22:25:49,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:25:49,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:25:49,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:25:49,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:25:49,726 INFO L87 Difference]: Start difference. First operand 40817 states and 217501 transitions. Second operand 7 states. [2020-10-15 22:25:50,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:25:50,433 INFO L93 Difference]: Finished difference Result 91389 states and 444541 transitions. [2020-10-15 22:25:50,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:25:50,434 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-15 22:25:50,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:25:50,714 INFO L225 Difference]: With dead ends: 91389 [2020-10-15 22:25:50,714 INFO L226 Difference]: Without dead ends: 91312 [2020-10-15 22:25:50,714 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 22:25:51,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91312 states. [2020-10-15 22:25:52,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91312 to 41653. [2020-10-15 22:25:52,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41653 states. [2020-10-15 22:25:53,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41653 states to 41653 states and 221647 transitions. [2020-10-15 22:25:53,040 INFO L78 Accepts]: Start accepts. Automaton has 41653 states and 221647 transitions. Word has length 27 [2020-10-15 22:25:53,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:25:53,040 INFO L481 AbstractCegarLoop]: Abstraction has 41653 states and 221647 transitions. [2020-10-15 22:25:53,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:25:53,041 INFO L276 IsEmpty]: Start isEmpty. Operand 41653 states and 221647 transitions. [2020-10-15 22:25:53,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:25:53,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:25:53,046 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 22:25:53,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2020-10-15 22:25:53,046 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 22:25:53,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:25:53,046 INFO L82 PathProgramCache]: Analyzing trace with hash -639630848, now seen corresponding path program 1 times [2020-10-15 22:25:53,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:25:53,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585809808] [2020-10-15 22:25:53,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:25:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:25:53,079 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 22:25:53,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585809808] [2020-10-15 22:25:53,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:25:53,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:25:53,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048989733] [2020-10-15 22:25:53,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:25:53,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:25:53,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:25:53,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:25:53,081 INFO L87 Difference]: Start difference. First operand 41653 states and 221647 transitions. Second operand 7 states. [2020-10-15 22:25:54,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:25:54,323 INFO L93 Difference]: Finished difference Result 96066 states and 468402 transitions. [2020-10-15 22:25:54,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:25:54,323 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-15 22:25:54,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:25:54,626 INFO L225 Difference]: With dead ends: 96066 [2020-10-15 22:25:54,626 INFO L226 Difference]: Without dead ends: 95989 [2020-10-15 22:25:54,626 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 22:25:55,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95989 states. [2020-10-15 22:25:56,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95989 to 44034. [2020-10-15 22:25:56,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44034 states. [2020-10-15 22:25:56,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44034 states to 44034 states and 234037 transitions. [2020-10-15 22:25:56,851 INFO L78 Accepts]: Start accepts. Automaton has 44034 states and 234037 transitions. Word has length 27 [2020-10-15 22:25:56,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:25:56,851 INFO L481 AbstractCegarLoop]: Abstraction has 44034 states and 234037 transitions. [2020-10-15 22:25:56,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:25:56,851 INFO L276 IsEmpty]: Start isEmpty. Operand 44034 states and 234037 transitions. [2020-10-15 22:25:56,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:25:56,856 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:25:56,856 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 22:25:56,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2020-10-15 22:25:56,856 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 22:25:56,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:25:56,856 INFO L82 PathProgramCache]: Analyzing trace with hash -616120448, now seen corresponding path program 2 times [2020-10-15 22:25:56,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:25:56,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774030892] [2020-10-15 22:25:56,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:25:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:25:56,889 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 22:25:56,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774030892] [2020-10-15 22:25:56,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:25:56,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:25:56,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127754802] [2020-10-15 22:25:56,890 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:25:56,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:25:56,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:25:56,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:25:56,891 INFO L87 Difference]: Start difference. First operand 44034 states and 234037 transitions. Second operand 7 states. [2020-10-15 22:25:57,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:25:57,614 INFO L93 Difference]: Finished difference Result 97335 states and 474289 transitions. [2020-10-15 22:25:57,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:25:57,614 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-15 22:25:57,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:25:57,910 INFO L225 Difference]: With dead ends: 97335 [2020-10-15 22:25:57,910 INFO L226 Difference]: Without dead ends: 97258 [2020-10-15 22:25:57,911 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 22:25:58,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97258 states. [2020-10-15 22:26:00,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97258 to 45832. [2020-10-15 22:26:00,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45832 states. [2020-10-15 22:26:00,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45832 states to 45832 states and 243883 transitions. [2020-10-15 22:26:00,244 INFO L78 Accepts]: Start accepts. Automaton has 45832 states and 243883 transitions. Word has length 27 [2020-10-15 22:26:00,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:26:00,245 INFO L481 AbstractCegarLoop]: Abstraction has 45832 states and 243883 transitions. [2020-10-15 22:26:00,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:26:00,245 INFO L276 IsEmpty]: Start isEmpty. Operand 45832 states and 243883 transitions. [2020-10-15 22:26:00,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:26:00,250 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:26:00,250 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 22:26:00,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2020-10-15 22:26:00,250 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 22:26:00,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:26:00,250 INFO L82 PathProgramCache]: Analyzing trace with hash -263020797, now seen corresponding path program 19 times [2020-10-15 22:26:00,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:26:00,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5485200] [2020-10-15 22:26:00,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:26:00,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:26:00,318 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 22:26:00,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5485200] [2020-10-15 22:26:00,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:26:00,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 22:26:00,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813911938] [2020-10-15 22:26:00,320 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:26:00,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:26:00,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:26:00,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:26:00,320 INFO L87 Difference]: Start difference. First operand 45832 states and 243883 transitions. Second operand 11 states. [2020-10-15 22:26:03,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:26:03,700 INFO L93 Difference]: Finished difference Result 206462 states and 913897 transitions. [2020-10-15 22:26:03,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:26:03,700 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 22:26:03,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:26:04,287 INFO L225 Difference]: With dead ends: 206462 [2020-10-15 22:26:04,287 INFO L226 Difference]: Without dead ends: 206438 [2020-10-15 22:26:04,287 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 22:26:06,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206438 states. [2020-10-15 22:26:08,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206438 to 45730. [2020-10-15 22:26:08,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45730 states. [2020-10-15 22:26:08,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45730 states to 45730 states and 243333 transitions. [2020-10-15 22:26:08,463 INFO L78 Accepts]: Start accepts. Automaton has 45730 states and 243333 transitions. Word has length 27 [2020-10-15 22:26:08,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:26:08,463 INFO L481 AbstractCegarLoop]: Abstraction has 45730 states and 243333 transitions. [2020-10-15 22:26:08,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:26:08,464 INFO L276 IsEmpty]: Start isEmpty. Operand 45730 states and 243333 transitions. [2020-10-15 22:26:08,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:26:08,469 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:26:08,469 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 22:26:08,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2020-10-15 22:26:08,469 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 22:26:08,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:26:08,469 INFO L82 PathProgramCache]: Analyzing trace with hash -277871037, now seen corresponding path program 20 times [2020-10-15 22:26:08,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:26:08,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952213959] [2020-10-15 22:26:08,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:26:08,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:26:08,538 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 22:26:08,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952213959] [2020-10-15 22:26:08,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:26:08,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 22:26:08,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456255894] [2020-10-15 22:26:08,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:26:08,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:26:08,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:26:08,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:26:08,540 INFO L87 Difference]: Start difference. First operand 45730 states and 243333 transitions. Second operand 11 states. [2020-10-15 22:26:11,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:26:11,144 INFO L93 Difference]: Finished difference Result 205970 states and 911791 transitions. [2020-10-15 22:26:11,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:26:11,145 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 22:26:11,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:26:11,742 INFO L225 Difference]: With dead ends: 205970 [2020-10-15 22:26:11,742 INFO L226 Difference]: Without dead ends: 205940 [2020-10-15 22:26:11,743 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 22:26:14,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205940 states. [2020-10-15 22:26:16,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205940 to 45335. [2020-10-15 22:26:16,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45335 states. [2020-10-15 22:26:16,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45335 states to 45335 states and 241261 transitions. [2020-10-15 22:26:16,665 INFO L78 Accepts]: Start accepts. Automaton has 45335 states and 241261 transitions. Word has length 27 [2020-10-15 22:26:16,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:26:16,666 INFO L481 AbstractCegarLoop]: Abstraction has 45335 states and 241261 transitions. [2020-10-15 22:26:16,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:26:16,666 INFO L276 IsEmpty]: Start isEmpty. Operand 45335 states and 241261 transitions. [2020-10-15 22:26:16,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:26:16,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:26:16,671 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 22:26:16,671 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2020-10-15 22:26:16,671 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 22:26:16,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:26:16,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1023950403, now seen corresponding path program 21 times [2020-10-15 22:26:16,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:26:16,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036742478] [2020-10-15 22:26:16,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:26:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:26:16,740 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 22:26:16,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036742478] [2020-10-15 22:26:16,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:26:16,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 22:26:16,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955619769] [2020-10-15 22:26:16,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:26:16,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:26:16,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:26:16,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:26:16,742 INFO L87 Difference]: Start difference. First operand 45335 states and 241261 transitions. Second operand 11 states. [2020-10-15 22:26:19,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:26:19,408 INFO L93 Difference]: Finished difference Result 205404 states and 909139 transitions. [2020-10-15 22:26:19,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:26:19,408 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 22:26:19,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:26:19,980 INFO L225 Difference]: With dead ends: 205404 [2020-10-15 22:26:19,980 INFO L226 Difference]: Without dead ends: 205380 [2020-10-15 22:26:19,981 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 22:26:21,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205380 states. [2020-10-15 22:26:24,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205380 to 45076. [2020-10-15 22:26:24,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45076 states. [2020-10-15 22:26:25,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45076 states to 45076 states and 240064 transitions. [2020-10-15 22:26:25,103 INFO L78 Accepts]: Start accepts. Automaton has 45076 states and 240064 transitions. Word has length 27 [2020-10-15 22:26:25,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:26:25,103 INFO L481 AbstractCegarLoop]: Abstraction has 45076 states and 240064 transitions. [2020-10-15 22:26:25,103 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:26:25,103 INFO L276 IsEmpty]: Start isEmpty. Operand 45076 states and 240064 transitions. [2020-10-15 22:26:25,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:26:25,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:26:25,108 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 22:26:25,108 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2020-10-15 22:26:25,109 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 22:26:25,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:26:25,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1010439363, now seen corresponding path program 22 times [2020-10-15 22:26:25,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:26:25,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919631665] [2020-10-15 22:26:25,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:26:25,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:26:25,178 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 22:26:25,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919631665] [2020-10-15 22:26:25,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:26:25,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 22:26:25,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46394899] [2020-10-15 22:26:25,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:26:25,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:26:25,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:26:25,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:26:25,180 INFO L87 Difference]: Start difference. First operand 45076 states and 240064 transitions. Second operand 11 states. [2020-10-15 22:26:27,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:26:27,916 INFO L93 Difference]: Finished difference Result 205143 states and 907975 transitions. [2020-10-15 22:26:27,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:26:27,916 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 22:26:27,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:26:28,554 INFO L225 Difference]: With dead ends: 205143 [2020-10-15 22:26:28,554 INFO L226 Difference]: Without dead ends: 205113 [2020-10-15 22:26:28,555 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 22:26:30,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205113 states. [2020-10-15 22:26:33,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205113 to 44685. [2020-10-15 22:26:33,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44685 states. [2020-10-15 22:26:33,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44685 states to 44685 states and 238000 transitions. [2020-10-15 22:26:33,810 INFO L78 Accepts]: Start accepts. Automaton has 44685 states and 238000 transitions. Word has length 27 [2020-10-15 22:26:33,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:26:33,810 INFO L481 AbstractCegarLoop]: Abstraction has 44685 states and 238000 transitions. [2020-10-15 22:26:33,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:26:33,810 INFO L276 IsEmpty]: Start isEmpty. Operand 44685 states and 238000 transitions. [2020-10-15 22:26:33,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:26:33,815 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:26:33,815 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 22:26:33,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2020-10-15 22:26:33,815 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 22:26:33,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:26:33,815 INFO L82 PathProgramCache]: Analyzing trace with hash -377078589, now seen corresponding path program 23 times [2020-10-15 22:26:33,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:26:33,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401678488] [2020-10-15 22:26:33,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:26:33,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:26:33,886 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 22:26:33,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401678488] [2020-10-15 22:26:33,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:26:33,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 22:26:33,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169948867] [2020-10-15 22:26:33,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:26:33,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:26:33,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:26:33,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:26:33,888 INFO L87 Difference]: Start difference. First operand 44685 states and 238000 transitions. Second operand 11 states. [2020-10-15 22:26:36,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:26:36,423 INFO L93 Difference]: Finished difference Result 204573 states and 905311 transitions. [2020-10-15 22:26:36,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:26:36,423 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 22:26:36,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:26:36,975 INFO L225 Difference]: With dead ends: 204573 [2020-10-15 22:26:36,976 INFO L226 Difference]: Without dead ends: 204549 [2020-10-15 22:26:36,976 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 22:26:38,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204549 states. [2020-10-15 22:26:41,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204549 to 44434. [2020-10-15 22:26:41,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44434 states. [2020-10-15 22:26:42,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44434 states to 44434 states and 236823 transitions. [2020-10-15 22:26:42,690 INFO L78 Accepts]: Start accepts. Automaton has 44434 states and 236823 transitions. Word has length 27 [2020-10-15 22:26:42,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:26:42,691 INFO L481 AbstractCegarLoop]: Abstraction has 44434 states and 236823 transitions. [2020-10-15 22:26:42,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:26:42,691 INFO L276 IsEmpty]: Start isEmpty. Operand 44434 states and 236823 transitions. [2020-10-15 22:26:42,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:26:42,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:26:42,697 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 22:26:42,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2020-10-15 22:26:42,697 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 22:26:42,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:26:42,697 INFO L82 PathProgramCache]: Analyzing trace with hash -375739389, now seen corresponding path program 24 times [2020-10-15 22:26:42,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:26:42,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774773568] [2020-10-15 22:26:42,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:26:42,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:26:42,771 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 22:26:42,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774773568] [2020-10-15 22:26:42,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:26:42,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 22:26:42,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143119915] [2020-10-15 22:26:42,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:26:42,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:26:42,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:26:42,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:26:42,772 INFO L87 Difference]: Start difference. First operand 44434 states and 236823 transitions. Second operand 11 states. [2020-10-15 22:26:45,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:26:45,605 INFO L93 Difference]: Finished difference Result 204089 states and 903225 transitions. [2020-10-15 22:26:45,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:26:45,606 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 22:26:45,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:26:46,216 INFO L225 Difference]: With dead ends: 204089 [2020-10-15 22:26:46,217 INFO L226 Difference]: Without dead ends: 204054 [2020-10-15 22:26:46,217 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 22:26:48,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204054 states. [2020-10-15 22:26:50,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204054 to 43794. [2020-10-15 22:26:50,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43794 states. [2020-10-15 22:26:50,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43794 states to 43794 states and 233791 transitions. [2020-10-15 22:26:50,592 INFO L78 Accepts]: Start accepts. Automaton has 43794 states and 233791 transitions. Word has length 27 [2020-10-15 22:26:50,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:26:50,592 INFO L481 AbstractCegarLoop]: Abstraction has 43794 states and 233791 transitions. [2020-10-15 22:26:50,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:26:50,592 INFO L276 IsEmpty]: Start isEmpty. Operand 43794 states and 233791 transitions. [2020-10-15 22:26:50,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:26:50,601 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:26:50,601 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 22:26:50,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2020-10-15 22:26:50,601 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 22:26:50,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:26:50,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1079064756, now seen corresponding path program 1 times [2020-10-15 22:26:50,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:26:50,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222324616] [2020-10-15 22:26:50,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:26:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:26:50,651 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 22:26:50,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222324616] [2020-10-15 22:26:50,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426661020] [2020-10-15 22:26:50,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 22:26:50,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:26:50,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:26:50,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:26:50,761 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 22:26:50,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:26:50,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:26:50,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664800411] [2020-10-15 22:26:50,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:26:50,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:26:50,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:26:50,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:26:50,762 INFO L87 Difference]: Start difference. First operand 43794 states and 233791 transitions. Second operand 11 states. [2020-10-15 22:26:52,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:26:52,689 INFO L93 Difference]: Finished difference Result 139868 states and 649854 transitions. [2020-10-15 22:26:52,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:26:52,690 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:26:52,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:26:53,144 INFO L225 Difference]: With dead ends: 139868 [2020-10-15 22:26:53,144 INFO L226 Difference]: Without dead ends: 139824 [2020-10-15 22:26:53,144 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 22:26:54,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139824 states. [2020-10-15 22:26:56,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139824 to 44208. [2020-10-15 22:26:56,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44208 states. [2020-10-15 22:26:56,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44208 states to 44208 states and 235737 transitions. [2020-10-15 22:26:56,241 INFO L78 Accepts]: Start accepts. Automaton has 44208 states and 235737 transitions. Word has length 29 [2020-10-15 22:26:56,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:26:56,241 INFO L481 AbstractCegarLoop]: Abstraction has 44208 states and 235737 transitions. [2020-10-15 22:26:56,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:26:56,241 INFO L276 IsEmpty]: Start isEmpty. Operand 44208 states and 235737 transitions. [2020-10-15 22:26:56,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:26:56,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:26:56,249 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 22:26:56,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable149 [2020-10-15 22:26:56,450 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 22:26:56,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:26:56,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1079080225, now seen corresponding path program 1 times [2020-10-15 22:26:56,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:26:56,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138444144] [2020-10-15 22:26:56,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:26:56,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:26:56,501 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 22:26:56,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138444144] [2020-10-15 22:26:56,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383640803] [2020-10-15 22:26:56,501 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 22:26:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:26:56,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:26:56,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:26:56,626 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 22:26:56,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:26:56,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:26:56,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51190655] [2020-10-15 22:26:56,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:26:56,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:26:56,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:26:56,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:26:56,627 INFO L87 Difference]: Start difference. First operand 44208 states and 235737 transitions. Second operand 11 states. [2020-10-15 22:26:58,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:26:58,081 INFO L93 Difference]: Finished difference Result 138663 states and 644549 transitions. [2020-10-15 22:26:58,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:26:58,082 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:26:58,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:26:58,476 INFO L225 Difference]: With dead ends: 138663 [2020-10-15 22:26:58,477 INFO L226 Difference]: Without dead ends: 138619 [2020-10-15 22:26:58,477 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 22:26:59,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138619 states. [2020-10-15 22:27:02,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138619 to 44346. [2020-10-15 22:27:02,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44346 states. [2020-10-15 22:27:02,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44346 states to 44346 states and 236212 transitions. [2020-10-15 22:27:02,152 INFO L78 Accepts]: Start accepts. Automaton has 44346 states and 236212 transitions. Word has length 29 [2020-10-15 22:27:02,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:27:02,152 INFO L481 AbstractCegarLoop]: Abstraction has 44346 states and 236212 transitions. [2020-10-15 22:27:02,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:27:02,152 INFO L276 IsEmpty]: Start isEmpty. Operand 44346 states and 236212 transitions. [2020-10-15 22:27:02,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:27:02,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:27:02,160 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 22:27:02,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150,62 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:27:02,361 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 22:27:02,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:27:02,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1079042684, now seen corresponding path program 1 times [2020-10-15 22:27:02,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:27:02,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642862347] [2020-10-15 22:27:02,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:27:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:02,408 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 22:27:02,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642862347] [2020-10-15 22:27:02,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533913705] [2020-10-15 22:27:02,409 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 22:27:02,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:02,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:27:02,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:27:02,515 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 22:27:02,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:27:02,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:27:02,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521878066] [2020-10-15 22:27:02,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:27:02,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:27:02,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:27:02,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:27:02,516 INFO L87 Difference]: Start difference. First operand 44346 states and 236212 transitions. Second operand 11 states. [2020-10-15 22:27:03,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:27:03,843 INFO L93 Difference]: Finished difference Result 137475 states and 638613 transitions. [2020-10-15 22:27:03,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:27:03,843 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:27:03,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:27:04,242 INFO L225 Difference]: With dead ends: 137475 [2020-10-15 22:27:04,242 INFO L226 Difference]: Without dead ends: 137431 [2020-10-15 22:27:04,243 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 22:27:05,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137431 states. [2020-10-15 22:27:07,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137431 to 44001. [2020-10-15 22:27:07,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44001 states. [2020-10-15 22:27:07,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44001 states to 44001 states and 234197 transitions. [2020-10-15 22:27:07,187 INFO L78 Accepts]: Start accepts. Automaton has 44001 states and 234197 transitions. Word has length 29 [2020-10-15 22:27:07,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:27:07,188 INFO L481 AbstractCegarLoop]: Abstraction has 44001 states and 234197 transitions. [2020-10-15 22:27:07,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:27:07,188 INFO L276 IsEmpty]: Start isEmpty. Operand 44001 states and 234197 transitions. [2020-10-15 22:27:07,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:27:07,196 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:27:07,196 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 22:27:07,396 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151,63 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:27:07,397 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 22:27:07,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:27:07,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1076743476, now seen corresponding path program 2 times [2020-10-15 22:27:07,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:27:07,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094451246] [2020-10-15 22:27:07,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:27:07,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:07,448 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 22:27:07,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094451246] [2020-10-15 22:27:07,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490593888] [2020-10-15 22:27:07,449 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 22:27:07,535 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:27:07,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:27:07,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:27:07,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:27:07,559 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 22:27:07,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:27:07,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:27:07,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775263558] [2020-10-15 22:27:07,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:27:07,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:27:07,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:27:07,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:27:07,560 INFO L87 Difference]: Start difference. First operand 44001 states and 234197 transitions. Second operand 11 states. [2020-10-15 22:27:09,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:27:09,291 INFO L93 Difference]: Finished difference Result 137660 states and 639047 transitions. [2020-10-15 22:27:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:27:09,292 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:27:09,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:27:09,667 INFO L225 Difference]: With dead ends: 137660 [2020-10-15 22:27:09,667 INFO L226 Difference]: Without dead ends: 137614 [2020-10-15 22:27:09,668 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 22:27:10,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137614 states. [2020-10-15 22:27:12,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137614 to 43606. [2020-10-15 22:27:12,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43606 states. [2020-10-15 22:27:12,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43606 states to 43606 states and 231805 transitions. [2020-10-15 22:27:12,594 INFO L78 Accepts]: Start accepts. Automaton has 43606 states and 231805 transitions. Word has length 29 [2020-10-15 22:27:12,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:27:12,594 INFO L481 AbstractCegarLoop]: Abstraction has 43606 states and 231805 transitions. [2020-10-15 22:27:12,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:27:12,594 INFO L276 IsEmpty]: Start isEmpty. Operand 43606 states and 231805 transitions. [2020-10-15 22:27:12,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:27:12,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:27:12,602 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 22:27:12,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:27:12,803 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 22:27:12,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:27:12,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1091609185, now seen corresponding path program 2 times [2020-10-15 22:27:12,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:27:12,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529871219] [2020-10-15 22:27:12,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:27:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:12,855 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 22:27:12,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529871219] [2020-10-15 22:27:12,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361488391] [2020-10-15 22:27:12,856 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 22:27:12,939 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:27:12,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:27:12,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:27:12,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:27:12,960 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 22:27:12,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:27:12,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:27:12,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591540817] [2020-10-15 22:27:12,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:27:12,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:27:12,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:27:12,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:27:12,962 INFO L87 Difference]: Start difference. First operand 43606 states and 231805 transitions. Second operand 11 states. [2020-10-15 22:27:14,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:27:14,312 INFO L93 Difference]: Finished difference Result 136227 states and 631974 transitions. [2020-10-15 22:27:14,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:27:14,313 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:27:14,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:27:14,690 INFO L225 Difference]: With dead ends: 136227 [2020-10-15 22:27:14,690 INFO L226 Difference]: Without dead ends: 136181 [2020-10-15 22:27:14,690 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 22:27:15,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136181 states. [2020-10-15 22:27:18,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136181 to 43334. [2020-10-15 22:27:18,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43334 states. [2020-10-15 22:27:18,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43334 states to 43334 states and 230138 transitions. [2020-10-15 22:27:18,310 INFO L78 Accepts]: Start accepts. Automaton has 43334 states and 230138 transitions. Word has length 29 [2020-10-15 22:27:18,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:27:18,310 INFO L481 AbstractCegarLoop]: Abstraction has 43334 states and 230138 transitions. [2020-10-15 22:27:18,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:27:18,310 INFO L276 IsEmpty]: Start isEmpty. Operand 43334 states and 230138 transitions. [2020-10-15 22:27:18,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:27:18,318 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:27:18,318 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 22:27:18,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153,65 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:27:18,525 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 22:27:18,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:27:18,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1055532284, now seen corresponding path program 2 times [2020-10-15 22:27:18,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:27:18,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827096718] [2020-10-15 22:27:18,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:27:18,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:18,576 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 22:27:18,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827096718] [2020-10-15 22:27:18,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462681515] [2020-10-15 22:27:18,577 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 22:27:18,663 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:27:18,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:27:18,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:27:18,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:27:18,685 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 22:27:18,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:27:18,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:27:18,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520630817] [2020-10-15 22:27:18,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:27:18,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:27:18,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:27:18,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:27:18,686 INFO L87 Difference]: Start difference. First operand 43334 states and 230138 transitions. Second operand 11 states. [2020-10-15 22:27:20,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:27:20,073 INFO L93 Difference]: Finished difference Result 135193 states and 626279 transitions. [2020-10-15 22:27:20,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:27:20,074 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:27:20,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:27:20,482 INFO L225 Difference]: With dead ends: 135193 [2020-10-15 22:27:20,482 INFO L226 Difference]: Without dead ends: 135147 [2020-10-15 22:27:20,483 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 22:27:21,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135147 states. [2020-10-15 22:27:23,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135147 to 43128. [2020-10-15 22:27:23,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43128 states. [2020-10-15 22:27:23,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43128 states to 43128 states and 228903 transitions. [2020-10-15 22:27:23,514 INFO L78 Accepts]: Start accepts. Automaton has 43128 states and 228903 transitions. Word has length 29 [2020-10-15 22:27:23,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:27:23,514 INFO L481 AbstractCegarLoop]: Abstraction has 43128 states and 228903 transitions. [2020-10-15 22:27:23,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:27:23,514 INFO L276 IsEmpty]: Start isEmpty. Operand 43128 states and 228903 transitions. [2020-10-15 22:27:23,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:27:23,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:27:23,522 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 22:27:23,736 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable154 [2020-10-15 22:27:23,737 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 22:27:23,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:27:23,737 INFO L82 PathProgramCache]: Analyzing trace with hash -233799798, now seen corresponding path program 3 times [2020-10-15 22:27:23,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:27:23,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258332615] [2020-10-15 22:27:23,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:27:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:23,794 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 22:27:23,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258332615] [2020-10-15 22:27:23,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440293403] [2020-10-15 22:27:23,795 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 22:27:23,885 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-15 22:27:23,885 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:27:23,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:27:23,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:27:23,907 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 22:27:23,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:27:23,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:27:23,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107067535] [2020-10-15 22:27:23,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:27:23,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:27:23,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:27:23,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:27:23,909 INFO L87 Difference]: Start difference. First operand 43128 states and 228903 transitions. Second operand 11 states. [2020-10-15 22:27:25,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:27:25,731 INFO L93 Difference]: Finished difference Result 135315 states and 626661 transitions. [2020-10-15 22:27:25,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:27:25,731 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:27:25,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:27:26,115 INFO L225 Difference]: With dead ends: 135315 [2020-10-15 22:27:26,115 INFO L226 Difference]: Without dead ends: 135271 [2020-10-15 22:27:26,115 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 22:27:27,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135271 states. [2020-10-15 22:27:28,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135271 to 42904. [2020-10-15 22:27:28,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42904 states. [2020-10-15 22:27:29,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42904 states to 42904 states and 227530 transitions. [2020-10-15 22:27:29,014 INFO L78 Accepts]: Start accepts. Automaton has 42904 states and 227530 transitions. Word has length 29 [2020-10-15 22:27:29,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:27:29,014 INFO L481 AbstractCegarLoop]: Abstraction has 42904 states and 227530 transitions. [2020-10-15 22:27:29,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:27:29,015 INFO L276 IsEmpty]: Start isEmpty. Operand 42904 states and 227530 transitions. [2020-10-15 22:27:29,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:27:29,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:27:29,022 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 22:27:29,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable155 [2020-10-15 22:27:29,223 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 22:27:29,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:27:29,224 INFO L82 PathProgramCache]: Analyzing trace with hash -938803546, now seen corresponding path program 1 times [2020-10-15 22:27:29,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:27:29,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97938907] [2020-10-15 22:27:29,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:27:29,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:29,272 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 22:27:29,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97938907] [2020-10-15 22:27:29,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041225703] [2020-10-15 22:27:29,273 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 22:27:29,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:29,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:27:29,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:27:29,382 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 22:27:29,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:27:29,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:27:29,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770779419] [2020-10-15 22:27:29,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:27:29,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:27:29,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:27:29,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:27:29,384 INFO L87 Difference]: Start difference. First operand 42904 states and 227530 transitions. Second operand 11 states. [2020-10-15 22:27:30,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:27:30,785 INFO L93 Difference]: Finished difference Result 140989 states and 654549 transitions. [2020-10-15 22:27:30,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:27:30,786 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:27:30,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:27:31,196 INFO L225 Difference]: With dead ends: 140989 [2020-10-15 22:27:31,196 INFO L226 Difference]: Without dead ends: 140945 [2020-10-15 22:27:31,197 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 22:27:32,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140945 states. [2020-10-15 22:27:34,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140945 to 42930. [2020-10-15 22:27:34,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42930 states. [2020-10-15 22:27:34,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42930 states to 42930 states and 227280 transitions. [2020-10-15 22:27:34,958 INFO L78 Accepts]: Start accepts. Automaton has 42930 states and 227280 transitions. Word has length 29 [2020-10-15 22:27:34,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:27:34,958 INFO L481 AbstractCegarLoop]: Abstraction has 42930 states and 227280 transitions. [2020-10-15 22:27:34,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:27:34,959 INFO L276 IsEmpty]: Start isEmpty. Operand 42930 states and 227280 transitions. [2020-10-15 22:27:34,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:27:34,966 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:27:34,967 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 22:27:35,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156,68 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:27:35,167 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 22:27:35,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:27:35,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1231154336, now seen corresponding path program 4 times [2020-10-15 22:27:35,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:27:35,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496747478] [2020-10-15 22:27:35,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:27:35,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:35,219 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 22:27:35,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496747478] [2020-10-15 22:27:35,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227816269] [2020-10-15 22:27:35,220 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 22:27:35,308 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 22:27:35,308 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:27:35,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:27:35,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:27:35,327 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 22:27:35,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:27:35,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:27:35,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973818374] [2020-10-15 22:27:35,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:27:35,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:27:35,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:27:35,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:27:35,328 INFO L87 Difference]: Start difference. First operand 42930 states and 227280 transitions. Second operand 11 states. [2020-10-15 22:27:36,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:27:36,751 INFO L93 Difference]: Finished difference Result 136674 states and 632799 transitions. [2020-10-15 22:27:36,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:27:36,752 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:27:36,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:27:37,159 INFO L225 Difference]: With dead ends: 136674 [2020-10-15 22:27:37,159 INFO L226 Difference]: Without dead ends: 136628 [2020-10-15 22:27:37,159 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 22:27:38,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136628 states. [2020-10-15 22:27:40,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136628 to 43133. [2020-10-15 22:27:40,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43133 states. [2020-10-15 22:27:40,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43133 states to 43133 states and 228222 transitions. [2020-10-15 22:27:40,282 INFO L78 Accepts]: Start accepts. Automaton has 43133 states and 228222 transitions. Word has length 29 [2020-10-15 22:27:40,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:27:40,283 INFO L481 AbstractCegarLoop]: Abstraction has 43133 states and 228222 transitions. [2020-10-15 22:27:40,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:27:40,283 INFO L276 IsEmpty]: Start isEmpty. Operand 43133 states and 228222 transitions. [2020-10-15 22:27:40,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:27:40,292 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:27:40,292 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 22:27:40,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable157 [2020-10-15 22:27:40,493 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 22:27:40,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:27:40,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1231140262, now seen corresponding path program 2 times [2020-10-15 22:27:40,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:27:40,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202766191] [2020-10-15 22:27:40,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:27:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:40,547 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 22:27:40,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202766191] [2020-10-15 22:27:40,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310352658] [2020-10-15 22:27:40,548 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 22:27:40,634 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:27:40,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:27:40,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:27:40,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:27:40,655 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 22:27:40,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:27:40,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:27:40,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798822129] [2020-10-15 22:27:40,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:27:40,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:27:40,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:27:40,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:27:40,656 INFO L87 Difference]: Start difference. First operand 43133 states and 228222 transitions. Second operand 11 states. [2020-10-15 22:27:42,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:27:42,681 INFO L93 Difference]: Finished difference Result 137702 states and 638553 transitions. [2020-10-15 22:27:42,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:27:42,682 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:27:42,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:27:43,090 INFO L225 Difference]: With dead ends: 137702 [2020-10-15 22:27:43,091 INFO L226 Difference]: Without dead ends: 137652 [2020-10-15 22:27:43,091 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 22:27:44,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137652 states. [2020-10-15 22:27:45,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137652 to 42970. [2020-10-15 22:27:45,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42970 states. [2020-10-15 22:27:46,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42970 states to 42970 states and 227334 transitions. [2020-10-15 22:27:46,035 INFO L78 Accepts]: Start accepts. Automaton has 42970 states and 227334 transitions. Word has length 29 [2020-10-15 22:27:46,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:27:46,035 INFO L481 AbstractCegarLoop]: Abstraction has 42970 states and 227334 transitions. [2020-10-15 22:27:46,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:27:46,035 INFO L276 IsEmpty]: Start isEmpty. Operand 42970 states and 227334 transitions. [2020-10-15 22:27:46,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:27:46,044 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:27:46,044 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 22:27:46,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable158 [2020-10-15 22:27:46,245 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 22:27:46,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:27:46,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1231177803, now seen corresponding path program 1 times [2020-10-15 22:27:46,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:27:46,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831529736] [2020-10-15 22:27:46,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:27:46,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:46,302 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 22:27:46,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831529736] [2020-10-15 22:27:46,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154576758] [2020-10-15 22:27:46,303 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 22:27:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:46,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:27:46,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:27:46,411 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 22:27:46,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:27:46,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:27:46,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348225275] [2020-10-15 22:27:46,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:27:46,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:27:46,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:27:46,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:27:46,412 INFO L87 Difference]: Start difference. First operand 42970 states and 227334 transitions. Second operand 11 states. [2020-10-15 22:27:47,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:27:47,755 INFO L93 Difference]: Finished difference Result 136895 states and 634251 transitions. [2020-10-15 22:27:47,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:27:47,755 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:27:47,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:27:48,148 INFO L225 Difference]: With dead ends: 136895 [2020-10-15 22:27:48,148 INFO L226 Difference]: Without dead ends: 136851 [2020-10-15 22:27:48,148 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 22:27:49,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136851 states. [2020-10-15 22:27:51,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136851 to 42730. [2020-10-15 22:27:51,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42730 states. [2020-10-15 22:27:51,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42730 states to 42730 states and 225896 transitions. [2020-10-15 22:27:51,989 INFO L78 Accepts]: Start accepts. Automaton has 42730 states and 225896 transitions. Word has length 29 [2020-10-15 22:27:51,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:27:51,989 INFO L481 AbstractCegarLoop]: Abstraction has 42730 states and 225896 transitions. [2020-10-15 22:27:51,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:27:51,989 INFO L276 IsEmpty]: Start isEmpty. Operand 42730 states and 225896 transitions. [2020-10-15 22:27:51,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:27:51,997 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:27:51,998 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 22:27:52,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable159 [2020-10-15 22:27:52,207 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 22:27:52,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:27:52,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1254688203, now seen corresponding path program 2 times [2020-10-15 22:27:52,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:27:52,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352490442] [2020-10-15 22:27:52,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:27:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:52,259 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 22:27:52,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352490442] [2020-10-15 22:27:52,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115846365] [2020-10-15 22:27:52,259 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 22:27:52,347 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:27:52,347 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:27:52,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:27:52,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:27:52,368 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 22:27:52,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:27:52,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:27:52,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950283613] [2020-10-15 22:27:52,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:27:52,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:27:52,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:27:52,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:27:52,369 INFO L87 Difference]: Start difference. First operand 42730 states and 225896 transitions. Second operand 11 states. [2020-10-15 22:27:53,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:27:53,688 INFO L93 Difference]: Finished difference Result 136603 states and 632426 transitions. [2020-10-15 22:27:53,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:27:53,689 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:27:53,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:27:54,063 INFO L225 Difference]: With dead ends: 136603 [2020-10-15 22:27:54,063 INFO L226 Difference]: Without dead ends: 136553 [2020-10-15 22:27:54,064 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 22:27:55,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136553 states. [2020-10-15 22:27:56,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136553 to 42336. [2020-10-15 22:27:56,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42336 states. [2020-10-15 22:27:56,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42336 states to 42336 states and 223735 transitions. [2020-10-15 22:27:56,858 INFO L78 Accepts]: Start accepts. Automaton has 42336 states and 223735 transitions. Word has length 29 [2020-10-15 22:27:56,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:27:56,858 INFO L481 AbstractCegarLoop]: Abstraction has 42336 states and 223735 transitions. [2020-10-15 22:27:56,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:27:56,858 INFO L276 IsEmpty]: Start isEmpty. Operand 42336 states and 223735 transitions. [2020-10-15 22:27:56,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:27:56,866 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:27:56,866 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 22:27:57,066 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160,72 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:27:57,066 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 22:27:57,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:27:57,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1636984727, now seen corresponding path program 3 times [2020-10-15 22:27:57,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:27:57,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758732069] [2020-10-15 22:27:57,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:27:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:57,118 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 22:27:57,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758732069] [2020-10-15 22:27:57,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333939205] [2020-10-15 22:27:57,119 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 22:27:57,202 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-15 22:27:57,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:27:57,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:27:57,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:27:57,222 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 22:27:57,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:27:57,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:27:57,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790947250] [2020-10-15 22:27:57,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:27:57,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:27:57,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:27:57,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:27:57,223 INFO L87 Difference]: Start difference. First operand 42336 states and 223735 transitions. Second operand 11 states. [2020-10-15 22:27:58,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:27:58,577 INFO L93 Difference]: Finished difference Result 136165 states and 630523 transitions. [2020-10-15 22:27:58,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:27:58,578 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:27:58,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:27:59,015 INFO L225 Difference]: With dead ends: 136165 [2020-10-15 22:27:59,015 INFO L226 Difference]: Without dead ends: 136121 [2020-10-15 22:27:59,016 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 22:28:01,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136121 states. [2020-10-15 22:28:02,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136121 to 42190. [2020-10-15 22:28:02,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42190 states. [2020-10-15 22:28:02,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42190 states to 42190 states and 222836 transitions. [2020-10-15 22:28:02,594 INFO L78 Accepts]: Start accepts. Automaton has 42190 states and 222836 transitions. Word has length 29 [2020-10-15 22:28:02,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:28:02,594 INFO L481 AbstractCegarLoop]: Abstraction has 42190 states and 222836 transitions. [2020-10-15 22:28:02,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:28:02,594 INFO L276 IsEmpty]: Start isEmpty. Operand 42190 states and 222836 transitions. [2020-10-15 22:28:02,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:28:02,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:28:02,603 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 22:28:02,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161,73 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:28:02,803 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 22:28:02,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:28:02,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1194503706, now seen corresponding path program 3 times [2020-10-15 22:28:02,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:28:02,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097813717] [2020-10-15 22:28:02,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:28:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:28:02,858 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 22:28:02,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097813717] [2020-10-15 22:28:02,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911503367] [2020-10-15 22:28:02,859 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 22:28:02,943 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-15 22:28:02,943 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:28:02,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:28:02,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:28:02,965 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 22:28:02,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:28:02,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:28:02,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875183340] [2020-10-15 22:28:02,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:28:02,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:28:02,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:28:02,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:28:02,966 INFO L87 Difference]: Start difference. First operand 42190 states and 222836 transitions. Second operand 11 states. [2020-10-15 22:28:04,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:28:04,335 INFO L93 Difference]: Finished difference Result 135620 states and 627622 transitions. [2020-10-15 22:28:04,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:28:04,335 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:28:04,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:28:04,739 INFO L225 Difference]: With dead ends: 135620 [2020-10-15 22:28:04,739 INFO L226 Difference]: Without dead ends: 135576 [2020-10-15 22:28:04,740 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 22:28:06,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135576 states. [2020-10-15 22:28:07,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135576 to 42095. [2020-10-15 22:28:07,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42095 states. [2020-10-15 22:28:07,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42095 states to 42095 states and 222269 transitions. [2020-10-15 22:28:07,687 INFO L78 Accepts]: Start accepts. Automaton has 42095 states and 222269 transitions. Word has length 29 [2020-10-15 22:28:07,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:28:07,687 INFO L481 AbstractCegarLoop]: Abstraction has 42095 states and 222269 transitions. [2020-10-15 22:28:07,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:28:07,687 INFO L276 IsEmpty]: Start isEmpty. Operand 42095 states and 222269 transitions. [2020-10-15 22:28:07,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:28:07,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:28:07,696 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 22:28:07,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162,74 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:28:07,897 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 22:28:07,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:28:07,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1497105939, now seen corresponding path program 4 times [2020-10-15 22:28:07,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:28:07,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002423091] [2020-10-15 22:28:07,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:28:07,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:28:07,949 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 22:28:07,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002423091] [2020-10-15 22:28:07,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256044822] [2020-10-15 22:28:07,950 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 22:28:08,039 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 22:28:08,040 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:28:08,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:28:08,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:28:08,062 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 22:28:08,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:28:08,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:28:08,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077565972] [2020-10-15 22:28:08,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:28:08,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:28:08,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:28:08,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:28:08,063 INFO L87 Difference]: Start difference. First operand 42095 states and 222269 transitions. Second operand 11 states. [2020-10-15 22:28:10,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:28:10,023 INFO L93 Difference]: Finished difference Result 137900 states and 638782 transitions. [2020-10-15 22:28:10,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:28:10,024 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:28:10,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:28:10,486 INFO L225 Difference]: With dead ends: 137900 [2020-10-15 22:28:10,486 INFO L226 Difference]: Without dead ends: 137850 [2020-10-15 22:28:10,486 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 22:28:11,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137850 states. [2020-10-15 22:28:13,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137850 to 42209. [2020-10-15 22:28:13,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42209 states. [2020-10-15 22:28:13,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42209 states to 42209 states and 222796 transitions. [2020-10-15 22:28:13,439 INFO L78 Accepts]: Start accepts. Automaton has 42209 states and 222796 transitions. Word has length 29 [2020-10-15 22:28:13,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:28:13,439 INFO L481 AbstractCegarLoop]: Abstraction has 42209 states and 222796 transitions. [2020-10-15 22:28:13,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:28:13,439 INFO L276 IsEmpty]: Start isEmpty. Operand 42209 states and 222796 transitions. [2020-10-15 22:28:13,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:28:13,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:28:13,447 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 22:28:13,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163,75 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:28:13,648 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 22:28:13,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:28:13,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1497107334, now seen corresponding path program 4 times [2020-10-15 22:28:13,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:28:13,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482795373] [2020-10-15 22:28:13,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:28:13,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:28:13,699 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 22:28:13,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482795373] [2020-10-15 22:28:13,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756966076] [2020-10-15 22:28:13,700 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 22:28:13,786 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 22:28:13,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:28:13,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:28:13,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:28:13,808 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 22:28:13,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:28:13,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:28:13,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32470289] [2020-10-15 22:28:13,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:28:13,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:28:13,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:28:13,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:28:13,810 INFO L87 Difference]: Start difference. First operand 42209 states and 222796 transitions. Second operand 11 states. [2020-10-15 22:28:15,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:28:15,238 INFO L93 Difference]: Finished difference Result 136803 states and 633722 transitions. [2020-10-15 22:28:15,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:28:15,239 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:28:15,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:28:15,629 INFO L225 Difference]: With dead ends: 136803 [2020-10-15 22:28:15,629 INFO L226 Difference]: Without dead ends: 136753 [2020-10-15 22:28:15,629 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 22:28:16,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136753 states. [2020-10-15 22:28:19,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136753 to 42058. [2020-10-15 22:28:19,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42058 states. [2020-10-15 22:28:19,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42058 states to 42058 states and 221940 transitions. [2020-10-15 22:28:19,325 INFO L78 Accepts]: Start accepts. Automaton has 42058 states and 221940 transitions. Word has length 29 [2020-10-15 22:28:19,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:28:19,326 INFO L481 AbstractCegarLoop]: Abstraction has 42058 states and 221940 transitions. [2020-10-15 22:28:19,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:28:19,326 INFO L276 IsEmpty]: Start isEmpty. Operand 42058 states and 221940 transitions. [2020-10-15 22:28:19,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:28:19,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:28:19,334 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 22:28:19,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164,76 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:28:19,535 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 22:28:19,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:28:19,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1497129406, now seen corresponding path program 1 times [2020-10-15 22:28:19,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:28:19,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860900131] [2020-10-15 22:28:19,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:28:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:28:19,588 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 22:28:19,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860900131] [2020-10-15 22:28:19,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874972573] [2020-10-15 22:28:19,589 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 22:28:19,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:28:19,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:28:19,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:28:19,697 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 22:28:19,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:28:19,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:28:19,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357914145] [2020-10-15 22:28:19,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:28:19,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:28:19,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:28:19,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:28:19,699 INFO L87 Difference]: Start difference. First operand 42058 states and 221940 transitions. Second operand 11 states. [2020-10-15 22:28:21,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:28:21,185 INFO L93 Difference]: Finished difference Result 136837 states and 634815 transitions. [2020-10-15 22:28:21,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:28:21,185 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:28:21,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:28:21,601 INFO L225 Difference]: With dead ends: 136837 [2020-10-15 22:28:21,601 INFO L226 Difference]: Without dead ends: 136793 [2020-10-15 22:28:21,602 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 22:28:22,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136793 states. [2020-10-15 22:28:24,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136793 to 41929. [2020-10-15 22:28:24,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41929 states. [2020-10-15 22:28:24,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41929 states to 41929 states and 221167 transitions. [2020-10-15 22:28:24,550 INFO L78 Accepts]: Start accepts. Automaton has 41929 states and 221167 transitions. Word has length 29 [2020-10-15 22:28:24,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:28:24,550 INFO L481 AbstractCegarLoop]: Abstraction has 41929 states and 221167 transitions. [2020-10-15 22:28:24,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:28:24,550 INFO L276 IsEmpty]: Start isEmpty. Operand 41929 states and 221167 transitions. [2020-10-15 22:28:24,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:28:24,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:28:24,558 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 22:28:24,759 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165,77 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:28:24,759 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 22:28:24,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:28:24,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1520639806, now seen corresponding path program 2 times [2020-10-15 22:28:24,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:28:24,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157601775] [2020-10-15 22:28:24,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:28:24,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:28:24,809 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 22:28:24,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157601775] [2020-10-15 22:28:24,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572015841] [2020-10-15 22:28:24,810 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 22:28:24,896 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:28:24,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:28:24,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:28:24,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:28:24,917 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 22:28:24,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:28:24,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:28:24,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413299133] [2020-10-15 22:28:24,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:28:24,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:28:24,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:28:24,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:28:24,919 INFO L87 Difference]: Start difference. First operand 41929 states and 221167 transitions. Second operand 11 states. [2020-10-15 22:28:26,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:28:26,249 INFO L93 Difference]: Finished difference Result 136136 states and 631023 transitions. [2020-10-15 22:28:26,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:28:26,249 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:28:26,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:28:26,657 INFO L225 Difference]: With dead ends: 136136 [2020-10-15 22:28:26,657 INFO L226 Difference]: Without dead ends: 136077 [2020-10-15 22:28:26,657 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 22:28:28,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136077 states. [2020-10-15 22:28:29,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136077 to 41353. [2020-10-15 22:28:29,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41353 states. [2020-10-15 22:28:30,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41353 states to 41353 states and 218039 transitions. [2020-10-15 22:28:30,124 INFO L78 Accepts]: Start accepts. Automaton has 41353 states and 218039 transitions. Word has length 29 [2020-10-15 22:28:30,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:28:30,124 INFO L481 AbstractCegarLoop]: Abstraction has 41353 states and 218039 transitions. [2020-10-15 22:28:30,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:28:30,124 INFO L276 IsEmpty]: Start isEmpty. Operand 41353 states and 218039 transitions. [2020-10-15 22:28:30,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:28:30,136 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:28:30,136 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 22:28:30,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable166 [2020-10-15 22:28:30,352 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 22:28:30,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:28:30,352 INFO L82 PathProgramCache]: Analyzing trace with hash -527473920, now seen corresponding path program 5 times [2020-10-15 22:28:30,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:28:30,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319380081] [2020-10-15 22:28:30,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:28:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:28:30,405 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 22:28:30,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319380081] [2020-10-15 22:28:30,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:28:30,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:28:30,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618182881] [2020-10-15 22:28:30,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:28:30,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:28:30,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:28:30,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:28:30,406 INFO L87 Difference]: Start difference. First operand 41353 states and 218039 transitions. Second operand 9 states. [2020-10-15 22:28:31,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:28:31,762 INFO L93 Difference]: Finished difference Result 135187 states and 625168 transitions. [2020-10-15 22:28:31,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:28:31,763 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:28:31,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:28:32,165 INFO L225 Difference]: With dead ends: 135187 [2020-10-15 22:28:32,165 INFO L226 Difference]: Without dead ends: 135143 [2020-10-15 22:28:32,165 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 22:28:33,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135143 states. [2020-10-15 22:28:35,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135143 to 40915. [2020-10-15 22:28:35,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40915 states. [2020-10-15 22:28:35,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40915 states to 40915 states and 215544 transitions. [2020-10-15 22:28:35,210 INFO L78 Accepts]: Start accepts. Automaton has 40915 states and 215544 transitions. Word has length 29 [2020-10-15 22:28:35,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:28:35,210 INFO L481 AbstractCegarLoop]: Abstraction has 40915 states and 215544 transitions. [2020-10-15 22:28:35,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:28:35,210 INFO L276 IsEmpty]: Start isEmpty. Operand 40915 states and 215544 transitions. [2020-10-15 22:28:35,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:28:35,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:28:35,220 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 22:28:35,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2020-10-15 22:28:35,220 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 22:28:35,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:28:35,220 INFO L82 PathProgramCache]: Analyzing trace with hash -527489389, now seen corresponding path program 5 times [2020-10-15 22:28:35,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:28:35,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500889485] [2020-10-15 22:28:35,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:28:35,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:28:35,274 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 22:28:35,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500889485] [2020-10-15 22:28:35,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:28:35,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:28:35,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560940805] [2020-10-15 22:28:35,275 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:28:35,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:28:35,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:28:35,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:28:35,276 INFO L87 Difference]: Start difference. First operand 40915 states and 215544 transitions. Second operand 9 states. [2020-10-15 22:28:36,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:28:36,646 INFO L93 Difference]: Finished difference Result 133251 states and 615922 transitions. [2020-10-15 22:28:36,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:28:36,646 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:28:36,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:28:37,797 INFO L225 Difference]: With dead ends: 133251 [2020-10-15 22:28:37,798 INFO L226 Difference]: Without dead ends: 133207 [2020-10-15 22:28:37,798 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 22:28:39,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133207 states. [2020-10-15 22:28:40,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133207 to 40430. [2020-10-15 22:28:40,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40430 states. [2020-10-15 22:28:40,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40430 states to 40430 states and 212865 transitions. [2020-10-15 22:28:40,744 INFO L78 Accepts]: Start accepts. Automaton has 40430 states and 212865 transitions. Word has length 29 [2020-10-15 22:28:40,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:28:40,744 INFO L481 AbstractCegarLoop]: Abstraction has 40430 states and 212865 transitions. [2020-10-15 22:28:40,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:28:40,744 INFO L276 IsEmpty]: Start isEmpty. Operand 40430 states and 212865 transitions. [2020-10-15 22:28:40,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:28:40,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:28:40,754 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 22:28:40,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2020-10-15 22:28:40,754 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 22:28:40,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:28:40,754 INFO L82 PathProgramCache]: Analyzing trace with hash -527451848, now seen corresponding path program 3 times [2020-10-15 22:28:40,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:28:40,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420338656] [2020-10-15 22:28:40,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:28:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:28:40,806 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 22:28:40,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420338656] [2020-10-15 22:28:40,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:28:40,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:28:40,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293861284] [2020-10-15 22:28:40,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:28:40,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:28:40,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:28:40,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:28:40,807 INFO L87 Difference]: Start difference. First operand 40430 states and 212865 transitions. Second operand 9 states. [2020-10-15 22:28:42,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:28:42,180 INFO L93 Difference]: Finished difference Result 132509 states and 612908 transitions. [2020-10-15 22:28:42,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:28:42,180 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:28:42,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:28:42,560 INFO L225 Difference]: With dead ends: 132509 [2020-10-15 22:28:42,560 INFO L226 Difference]: Without dead ends: 132465 [2020-10-15 22:28:42,560 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 22:28:43,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132465 states. [2020-10-15 22:28:45,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132465 to 39940. [2020-10-15 22:28:45,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39940 states. [2020-10-15 22:28:45,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39940 states to 39940 states and 210218 transitions. [2020-10-15 22:28:45,350 INFO L78 Accepts]: Start accepts. Automaton has 39940 states and 210218 transitions. Word has length 29 [2020-10-15 22:28:45,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:28:45,350 INFO L481 AbstractCegarLoop]: Abstraction has 39940 states and 210218 transitions. [2020-10-15 22:28:45,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:28:45,350 INFO L276 IsEmpty]: Start isEmpty. Operand 39940 states and 210218 transitions. [2020-10-15 22:28:45,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:28:45,358 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:28:45,358 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 22:28:45,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2020-10-15 22:28:45,358 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 22:28:45,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:28:45,359 INFO L82 PathProgramCache]: Analyzing trace with hash -526134720, now seen corresponding path program 6 times [2020-10-15 22:28:45,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:28:45,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193961390] [2020-10-15 22:28:45,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:28:45,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:28:45,409 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 22:28:45,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193961390] [2020-10-15 22:28:45,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:28:45,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:28:45,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237965600] [2020-10-15 22:28:45,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:28:45,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:28:45,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:28:45,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:28:45,410 INFO L87 Difference]: Start difference. First operand 39940 states and 210218 transitions. Second operand 9 states. [2020-10-15 22:28:47,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:28:47,141 INFO L93 Difference]: Finished difference Result 130945 states and 603941 transitions. [2020-10-15 22:28:47,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:28:47,142 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:28:47,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:28:47,519 INFO L225 Difference]: With dead ends: 130945 [2020-10-15 22:28:47,520 INFO L226 Difference]: Without dead ends: 130886 [2020-10-15 22:28:47,520 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 22:28:48,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130886 states. [2020-10-15 22:28:50,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130886 to 39086. [2020-10-15 22:28:50,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39086 states. [2020-10-15 22:28:50,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39086 states to 39086 states and 205652 transitions. [2020-10-15 22:28:50,272 INFO L78 Accepts]: Start accepts. Automaton has 39086 states and 205652 transitions. Word has length 29 [2020-10-15 22:28:50,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:28:50,272 INFO L481 AbstractCegarLoop]: Abstraction has 39086 states and 205652 transitions. [2020-10-15 22:28:50,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:28:50,273 INFO L276 IsEmpty]: Start isEmpty. Operand 39086 states and 205652 transitions. [2020-10-15 22:28:50,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:28:50,280 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:28:50,280 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 22:28:50,281 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2020-10-15 22:28:50,281 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 22:28:50,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:28:50,281 INFO L82 PathProgramCache]: Analyzing trace with hash -526148794, now seen corresponding path program 5 times [2020-10-15 22:28:50,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:28:50,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053411838] [2020-10-15 22:28:50,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:28:50,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:28:50,332 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 22:28:50,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053411838] [2020-10-15 22:28:50,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:28:50,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:28:50,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136861901] [2020-10-15 22:28:50,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:28:50,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:28:50,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:28:50,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:28:50,335 INFO L87 Difference]: Start difference. First operand 39086 states and 205652 transitions. Second operand 9 states. [2020-10-15 22:28:51,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:28:51,632 INFO L93 Difference]: Finished difference Result 130414 states and 601082 transitions. [2020-10-15 22:28:51,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:28:51,633 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:28:51,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:28:51,997 INFO L225 Difference]: With dead ends: 130414 [2020-10-15 22:28:51,998 INFO L226 Difference]: Without dead ends: 130370 [2020-10-15 22:28:51,998 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 22:28:53,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130370 states. [2020-10-15 22:28:54,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130370 to 38758. [2020-10-15 22:28:54,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38758 states. [2020-10-15 22:28:54,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38758 states to 38758 states and 203866 transitions. [2020-10-15 22:28:54,728 INFO L78 Accepts]: Start accepts. Automaton has 38758 states and 203866 transitions. Word has length 29 [2020-10-15 22:28:54,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:28:54,728 INFO L481 AbstractCegarLoop]: Abstraction has 38758 states and 203866 transitions. [2020-10-15 22:28:54,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:28:54,728 INFO L276 IsEmpty]: Start isEmpty. Operand 38758 states and 203866 transitions. [2020-10-15 22:28:54,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:28:54,736 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:28:54,736 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 22:28:54,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2020-10-15 22:28:54,737 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 22:28:54,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:28:54,737 INFO L82 PathProgramCache]: Analyzing trace with hash -526111253, now seen corresponding path program 3 times [2020-10-15 22:28:54,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:28:54,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583683566] [2020-10-15 22:28:54,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:28:54,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:28:54,788 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 22:28:54,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583683566] [2020-10-15 22:28:54,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:28:54,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:28:54,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701627417] [2020-10-15 22:28:54,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:28:54,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:28:54,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:28:54,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:28:54,790 INFO L87 Difference]: Start difference. First operand 38758 states and 203866 transitions. Second operand 9 states. [2020-10-15 22:28:56,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:28:56,393 INFO L93 Difference]: Finished difference Result 129953 states and 599494 transitions. [2020-10-15 22:28:56,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:28:56,394 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:28:56,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:28:56,789 INFO L225 Difference]: With dead ends: 129953 [2020-10-15 22:28:56,789 INFO L226 Difference]: Without dead ends: 129909 [2020-10-15 22:28:56,790 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 22:28:57,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129909 states. [2020-10-15 22:28:59,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129909 to 38350. [2020-10-15 22:28:59,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38350 states. [2020-10-15 22:28:59,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38350 states to 38350 states and 201720 transitions. [2020-10-15 22:28:59,599 INFO L78 Accepts]: Start accepts. Automaton has 38350 states and 201720 transitions. Word has length 29 [2020-10-15 22:28:59,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:28:59,599 INFO L481 AbstractCegarLoop]: Abstraction has 38350 states and 201720 transitions. [2020-10-15 22:28:59,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:28:59,599 INFO L276 IsEmpty]: Start isEmpty. Operand 38350 states and 201720 transitions. [2020-10-15 22:28:59,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:28:59,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:28:59,609 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 22:28:59,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2020-10-15 22:28:59,610 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 22:28:59,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:28:59,610 INFO L82 PathProgramCache]: Analyzing trace with hash -541000429, now seen corresponding path program 6 times [2020-10-15 22:28:59,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:28:59,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499399177] [2020-10-15 22:28:59,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:28:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:28:59,665 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 22:28:59,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499399177] [2020-10-15 22:28:59,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:28:59,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:28:59,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503579757] [2020-10-15 22:28:59,666 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:28:59,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:28:59,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:28:59,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:28:59,667 INFO L87 Difference]: Start difference. First operand 38350 states and 201720 transitions. Second operand 9 states. [2020-10-15 22:29:00,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:29:00,985 INFO L93 Difference]: Finished difference Result 128408 states and 591144 transitions. [2020-10-15 22:29:00,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:29:00,985 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:29:00,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:29:01,361 INFO L225 Difference]: With dead ends: 128408 [2020-10-15 22:29:01,361 INFO L226 Difference]: Without dead ends: 128349 [2020-10-15 22:29:01,362 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:29:02,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128349 states. [2020-10-15 22:29:04,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128349 to 37756. [2020-10-15 22:29:04,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37756 states. [2020-10-15 22:29:04,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37756 states to 37756 states and 198597 transitions. [2020-10-15 22:29:05,000 INFO L78 Accepts]: Start accepts. Automaton has 37756 states and 198597 transitions. Word has length 29 [2020-10-15 22:29:05,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:29:05,000 INFO L481 AbstractCegarLoop]: Abstraction has 37756 states and 198597 transitions. [2020-10-15 22:29:05,000 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:29:05,000 INFO L276 IsEmpty]: Start isEmpty. Operand 37756 states and 198597 transitions. [2020-10-15 22:29:05,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:29:05,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:29:05,009 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 22:29:05,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2020-10-15 22:29:05,009 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 22:29:05,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:29:05,009 INFO L82 PathProgramCache]: Analyzing trace with hash -540999034, now seen corresponding path program 6 times [2020-10-15 22:29:05,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:29:05,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591193776] [2020-10-15 22:29:05,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:29:05,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:29:05,059 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 22:29:05,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591193776] [2020-10-15 22:29:05,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:29:05,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:29:05,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682238311] [2020-10-15 22:29:05,060 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:29:05,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:29:05,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:29:05,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:29:05,060 INFO L87 Difference]: Start difference. First operand 37756 states and 198597 transitions. Second operand 9 states. [2020-10-15 22:29:06,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:29:06,489 INFO L93 Difference]: Finished difference Result 127321 states and 585958 transitions. [2020-10-15 22:29:06,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:29:06,490 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:29:06,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:29:06,922 INFO L225 Difference]: With dead ends: 127321 [2020-10-15 22:29:06,922 INFO L226 Difference]: Without dead ends: 127262 [2020-10-15 22:29:06,922 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 22:29:08,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127262 states. [2020-10-15 22:29:09,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127262 to 36966. [2020-10-15 22:29:09,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36966 states. [2020-10-15 22:29:09,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36966 states to 36966 states and 194506 transitions. [2020-10-15 22:29:09,613 INFO L78 Accepts]: Start accepts. Automaton has 36966 states and 194506 transitions. Word has length 29 [2020-10-15 22:29:09,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:29:09,613 INFO L481 AbstractCegarLoop]: Abstraction has 36966 states and 194506 transitions. [2020-10-15 22:29:09,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:29:09,614 INFO L276 IsEmpty]: Start isEmpty. Operand 36966 states and 194506 transitions. [2020-10-15 22:29:09,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:29:09,621 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:29:09,621 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 22:29:09,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2020-10-15 22:29:09,621 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 22:29:09,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:29:09,622 INFO L82 PathProgramCache]: Analyzing trace with hash -540976962, now seen corresponding path program 3 times [2020-10-15 22:29:09,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:29:09,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546011042] [2020-10-15 22:29:09,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:29:09,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:29:09,674 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 22:29:09,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546011042] [2020-10-15 22:29:09,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:29:09,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:29:09,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089093966] [2020-10-15 22:29:09,676 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:29:09,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:29:09,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:29:09,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:29:09,676 INFO L87 Difference]: Start difference. First operand 36966 states and 194506 transitions. Second operand 9 states. [2020-10-15 22:29:10,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:29:10,963 INFO L93 Difference]: Finished difference Result 127898 states and 589602 transitions. [2020-10-15 22:29:10,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:29:10,963 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:29:10,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:29:11,337 INFO L225 Difference]: With dead ends: 127898 [2020-10-15 22:29:11,338 INFO L226 Difference]: Without dead ends: 127854 [2020-10-15 22:29:11,338 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 22:29:12,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127854 states. [2020-10-15 22:29:14,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127854 to 36674. [2020-10-15 22:29:14,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36674 states. [2020-10-15 22:29:14,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36674 states to 36674 states and 193006 transitions. [2020-10-15 22:29:14,739 INFO L78 Accepts]: Start accepts. Automaton has 36674 states and 193006 transitions. Word has length 29 [2020-10-15 22:29:14,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:29:14,739 INFO L481 AbstractCegarLoop]: Abstraction has 36674 states and 193006 transitions. [2020-10-15 22:29:14,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:29:14,739 INFO L276 IsEmpty]: Start isEmpty. Operand 36674 states and 193006 transitions. [2020-10-15 22:29:14,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:29:14,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:29:14,747 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 22:29:14,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2020-10-15 22:29:14,747 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 22:29:14,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:29:14,747 INFO L82 PathProgramCache]: Analyzing trace with hash -504923528, now seen corresponding path program 4 times [2020-10-15 22:29:14,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:29:14,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341290049] [2020-10-15 22:29:14,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:29:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:29:14,798 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 22:29:14,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341290049] [2020-10-15 22:29:14,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:29:14,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:29:14,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049921093] [2020-10-15 22:29:14,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:29:14,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:29:14,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:29:14,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:29:14,801 INFO L87 Difference]: Start difference. First operand 36674 states and 193006 transitions. Second operand 9 states. [2020-10-15 22:29:16,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:29:16,090 INFO L93 Difference]: Finished difference Result 128860 states and 594173 transitions. [2020-10-15 22:29:16,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:29:16,090 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:29:16,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:29:16,480 INFO L225 Difference]: With dead ends: 128860 [2020-10-15 22:29:16,480 INFO L226 Difference]: Without dead ends: 128801 [2020-10-15 22:29:16,480 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 22:29:17,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128801 states. [2020-10-15 22:29:18,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128801 to 36922. [2020-10-15 22:29:18,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36922 states. [2020-10-15 22:29:19,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36922 states to 36922 states and 194255 transitions. [2020-10-15 22:29:19,114 INFO L78 Accepts]: Start accepts. Automaton has 36922 states and 194255 transitions. Word has length 29 [2020-10-15 22:29:19,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:29:19,114 INFO L481 AbstractCegarLoop]: Abstraction has 36922 states and 194255 transitions. [2020-10-15 22:29:19,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:29:19,114 INFO L276 IsEmpty]: Start isEmpty. Operand 36922 states and 194255 transitions. [2020-10-15 22:29:19,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:29:19,122 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:29:19,122 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 22:29:19,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2020-10-15 22:29:19,122 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 22:29:19,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:29:19,122 INFO L82 PathProgramCache]: Analyzing trace with hash -504922133, now seen corresponding path program 4 times [2020-10-15 22:29:19,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:29:19,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245521073] [2020-10-15 22:29:19,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:29:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:29:19,174 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 22:29:19,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245521073] [2020-10-15 22:29:19,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:29:19,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:29:19,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718621021] [2020-10-15 22:29:19,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:29:19,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:29:19,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:29:19,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:29:19,176 INFO L87 Difference]: Start difference. First operand 36922 states and 194255 transitions. Second operand 9 states. [2020-10-15 22:29:20,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:29:20,433 INFO L93 Difference]: Finished difference Result 127746 states and 588973 transitions. [2020-10-15 22:29:20,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:29:20,434 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:29:20,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:29:20,791 INFO L225 Difference]: With dead ends: 127746 [2020-10-15 22:29:20,791 INFO L226 Difference]: Without dead ends: 127687 [2020-10-15 22:29:20,791 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 22:29:21,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127687 states. [2020-10-15 22:29:23,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127687 to 36885. [2020-10-15 22:29:23,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36885 states. [2020-10-15 22:29:24,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36885 states to 36885 states and 194028 transitions. [2020-10-15 22:29:24,056 INFO L78 Accepts]: Start accepts. Automaton has 36885 states and 194028 transitions. Word has length 29 [2020-10-15 22:29:24,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:29:24,056 INFO L481 AbstractCegarLoop]: Abstraction has 36885 states and 194028 transitions. [2020-10-15 22:29:24,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:29:24,056 INFO L276 IsEmpty]: Start isEmpty. Operand 36885 states and 194028 transitions. [2020-10-15 22:29:24,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:29:24,063 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:29:24,064 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 22:29:24,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2020-10-15 22:29:24,064 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 22:29:24,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:29:24,064 INFO L82 PathProgramCache]: Analyzing trace with hash -504937602, now seen corresponding path program 4 times [2020-10-15 22:29:24,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:29:24,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477324895] [2020-10-15 22:29:24,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:29:24,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:29:24,118 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 22:29:24,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477324895] [2020-10-15 22:29:24,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:29:24,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:29:24,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771943366] [2020-10-15 22:29:24,119 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:29:24,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:29:24,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:29:24,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:29:24,120 INFO L87 Difference]: Start difference. First operand 36885 states and 194028 transitions. Second operand 9 states. [2020-10-15 22:29:25,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:29:25,511 INFO L93 Difference]: Finished difference Result 126643 states and 584111 transitions. [2020-10-15 22:29:25,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:29:25,511 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:29:25,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:29:25,882 INFO L225 Difference]: With dead ends: 126643 [2020-10-15 22:29:25,883 INFO L226 Difference]: Without dead ends: 126584 [2020-10-15 22:29:25,883 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 22:29:27,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126584 states. [2020-10-15 22:29:28,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126584 to 36688. [2020-10-15 22:29:28,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36688 states. [2020-10-15 22:29:28,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36688 states to 36688 states and 192991 transitions. [2020-10-15 22:29:28,509 INFO L78 Accepts]: Start accepts. Automaton has 36688 states and 192991 transitions. Word has length 29 [2020-10-15 22:29:28,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:29:28,509 INFO L481 AbstractCegarLoop]: Abstraction has 36688 states and 192991 transitions. [2020-10-15 22:29:28,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:29:28,509 INFO L276 IsEmpty]: Start isEmpty. Operand 36688 states and 192991 transitions. [2020-10-15 22:29:28,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:29:28,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:29:28,518 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:29:28,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2020-10-15 22:29:28,518 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 22:29:28,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:29:28,518 INFO L82 PathProgramCache]: Analyzing trace with hash -413562361, now seen corresponding path program 1 times [2020-10-15 22:29:28,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:29:28,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411227200] [2020-10-15 22:29:28,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:29:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:29:28,538 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 22:29:28,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411227200] [2020-10-15 22:29:28,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:29:28,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:29:28,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307896485] [2020-10-15 22:29:28,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:29:28,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:29:28,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:29:28,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:29:28,540 INFO L87 Difference]: Start difference. First operand 36688 states and 192991 transitions. Second operand 5 states. [2020-10-15 22:29:28,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:29:28,958 INFO L93 Difference]: Finished difference Result 61979 states and 317658 transitions. [2020-10-15 22:29:28,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:29:28,959 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-10-15 22:29:28,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:29:29,145 INFO L225 Difference]: With dead ends: 61979 [2020-10-15 22:29:29,146 INFO L226 Difference]: Without dead ends: 61915 [2020-10-15 22:29:29,146 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 22:29:29,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61915 states. [2020-10-15 22:29:30,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61915 to 45529. [2020-10-15 22:29:30,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45529 states. [2020-10-15 22:29:30,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45529 states to 45529 states and 238865 transitions. [2020-10-15 22:29:30,894 INFO L78 Accepts]: Start accepts. Automaton has 45529 states and 238865 transitions. Word has length 29 [2020-10-15 22:29:30,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:29:30,894 INFO L481 AbstractCegarLoop]: Abstraction has 45529 states and 238865 transitions. [2020-10-15 22:29:30,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:29:30,894 INFO L276 IsEmpty]: Start isEmpty. Operand 45529 states and 238865 transitions. [2020-10-15 22:29:30,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:29:30,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:29:30,902 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 22:29:30,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2020-10-15 22:29:30,902 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 22:29:30,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:29:30,902 INFO L82 PathProgramCache]: Analyzing trace with hash 613734392, now seen corresponding path program 5 times [2020-10-15 22:29:30,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:29:30,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712388974] [2020-10-15 22:29:30,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:29:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:29:30,952 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 22:29:30,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712388974] [2020-10-15 22:29:30,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:29:30,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:29:30,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400399943] [2020-10-15 22:29:30,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:29:30,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:29:30,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:29:30,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:29:30,954 INFO L87 Difference]: Start difference. First operand 45529 states and 238865 transitions. Second operand 9 states. [2020-10-15 22:29:32,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:29:32,820 INFO L93 Difference]: Finished difference Result 150731 states and 702613 transitions. [2020-10-15 22:29:32,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:29:32,821 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:29:32,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:29:33,283 INFO L225 Difference]: With dead ends: 150731 [2020-10-15 22:29:33,283 INFO L226 Difference]: Without dead ends: 150675 [2020-10-15 22:29:33,284 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 22:29:34,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150675 states. [2020-10-15 22:29:36,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150675 to 46190. [2020-10-15 22:29:36,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46190 states. [2020-10-15 22:29:36,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46190 states to 46190 states and 242332 transitions. [2020-10-15 22:29:36,397 INFO L78 Accepts]: Start accepts. Automaton has 46190 states and 242332 transitions. Word has length 29 [2020-10-15 22:29:36,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:29:36,397 INFO L481 AbstractCegarLoop]: Abstraction has 46190 states and 242332 transitions. [2020-10-15 22:29:36,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:29:36,398 INFO L276 IsEmpty]: Start isEmpty. Operand 46190 states and 242332 transitions. [2020-10-15 22:29:36,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:29:36,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:29:36,406 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 22:29:36,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2020-10-15 22:29:36,406 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 22:29:36,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:29:36,406 INFO L82 PathProgramCache]: Analyzing trace with hash 613735787, now seen corresponding path program 5 times [2020-10-15 22:29:36,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:29:36,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545293317] [2020-10-15 22:29:36,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:29:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:29:36,456 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 22:29:36,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545293317] [2020-10-15 22:29:36,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:29:36,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:29:36,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694960681] [2020-10-15 22:29:36,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:29:36,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:29:36,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:29:36,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:29:36,458 INFO L87 Difference]: Start difference. First operand 46190 states and 242332 transitions. Second operand 9 states. [2020-10-15 22:29:37,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:29:37,817 INFO L93 Difference]: Finished difference Result 149511 states and 696801 transitions. [2020-10-15 22:29:37,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:29:37,817 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:29:37,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:29:38,257 INFO L225 Difference]: With dead ends: 149511 [2020-10-15 22:29:38,257 INFO L226 Difference]: Without dead ends: 149455 [2020-10-15 22:29:38,257 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 22:29:39,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149455 states. [2020-10-15 22:29:41,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149455 to 46554. [2020-10-15 22:29:41,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46554 states. [2020-10-15 22:29:42,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46554 states to 46554 states and 244235 transitions. [2020-10-15 22:29:42,118 INFO L78 Accepts]: Start accepts. Automaton has 46554 states and 244235 transitions. Word has length 29 [2020-10-15 22:29:42,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:29:42,118 INFO L481 AbstractCegarLoop]: Abstraction has 46554 states and 244235 transitions. [2020-10-15 22:29:42,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:29:42,119 INFO L276 IsEmpty]: Start isEmpty. Operand 46554 states and 244235 transitions. [2020-10-15 22:29:42,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:29:42,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:29:42,127 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 22:29:42,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2020-10-15 22:29:42,127 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 22:29:42,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:29:42,127 INFO L82 PathProgramCache]: Analyzing trace with hash 613720318, now seen corresponding path program 5 times [2020-10-15 22:29:42,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:29:42,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564777024] [2020-10-15 22:29:42,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:29:42,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:29:42,171 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 22:29:42,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564777024] [2020-10-15 22:29:42,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:29:42,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:29:42,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255029770] [2020-10-15 22:29:42,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:29:42,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:29:42,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:29:42,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:29:42,172 INFO L87 Difference]: Start difference. First operand 46554 states and 244235 transitions. Second operand 9 states. [2020-10-15 22:29:43,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:29:43,540 INFO L93 Difference]: Finished difference Result 148338 states and 691501 transitions. [2020-10-15 22:29:43,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:29:43,541 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:29:43,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:29:43,978 INFO L225 Difference]: With dead ends: 148338 [2020-10-15 22:29:43,978 INFO L226 Difference]: Without dead ends: 148282 [2020-10-15 22:29:43,978 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 22:29:45,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148282 states. [2020-10-15 22:29:46,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148282 to 46429. [2020-10-15 22:29:46,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46429 states. [2020-10-15 22:29:47,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46429 states to 46429 states and 243498 transitions. [2020-10-15 22:29:47,162 INFO L78 Accepts]: Start accepts. Automaton has 46429 states and 243498 transitions. Word has length 29 [2020-10-15 22:29:47,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:29:47,162 INFO L481 AbstractCegarLoop]: Abstraction has 46429 states and 243498 transitions. [2020-10-15 22:29:47,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:29:47,163 INFO L276 IsEmpty]: Start isEmpty. Operand 46429 states and 243498 transitions. [2020-10-15 22:29:47,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:29:47,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:29:47,171 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 22:29:47,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2020-10-15 22:29:47,171 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 22:29:47,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:29:47,171 INFO L82 PathProgramCache]: Analyzing trace with hash 614716472, now seen corresponding path program 6 times [2020-10-15 22:29:47,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:29:47,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730749021] [2020-10-15 22:29:47,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:29:47,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:29:47,222 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 22:29:47,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730749021] [2020-10-15 22:29:47,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:29:47,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:29:47,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872355072] [2020-10-15 22:29:47,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:29:47,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:29:47,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:29:47,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:29:47,224 INFO L87 Difference]: Start difference. First operand 46429 states and 243498 transitions. Second operand 9 states. [2020-10-15 22:29:48,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:29:48,651 INFO L93 Difference]: Finished difference Result 148415 states and 691326 transitions. [2020-10-15 22:29:48,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:29:48,651 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:29:48,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:29:49,113 INFO L225 Difference]: With dead ends: 148415 [2020-10-15 22:29:49,113 INFO L226 Difference]: Without dead ends: 148344 [2020-10-15 22:29:49,114 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:29:51,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148344 states. [2020-10-15 22:29:52,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148344 to 45169. [2020-10-15 22:29:52,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45169 states. [2020-10-15 22:29:52,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45169 states to 45169 states and 236894 transitions. [2020-10-15 22:29:52,981 INFO L78 Accepts]: Start accepts. Automaton has 45169 states and 236894 transitions. Word has length 29 [2020-10-15 22:29:52,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:29:52,981 INFO L481 AbstractCegarLoop]: Abstraction has 45169 states and 236894 transitions. [2020-10-15 22:29:52,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:29:52,981 INFO L276 IsEmpty]: Start isEmpty. Operand 45169 states and 236894 transitions. [2020-10-15 22:29:52,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:29:52,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:29:52,990 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 22:29:52,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2020-10-15 22:29:52,990 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 22:29:52,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:29:52,990 INFO L82 PathProgramCache]: Analyzing trace with hash 616057067, now seen corresponding path program 6 times [2020-10-15 22:29:52,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:29:52,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828204895] [2020-10-15 22:29:52,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:29:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:29:53,041 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 22:29:53,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828204895] [2020-10-15 22:29:53,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:29:53,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:29:53,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969695129] [2020-10-15 22:29:53,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:29:53,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:29:53,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:29:53,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:29:53,043 INFO L87 Difference]: Start difference. First operand 45169 states and 236894 transitions. Second operand 9 states. [2020-10-15 22:29:54,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:29:54,532 INFO L93 Difference]: Finished difference Result 147425 states and 686023 transitions. [2020-10-15 22:29:54,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:29:54,533 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:29:54,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:29:54,973 INFO L225 Difference]: With dead ends: 147425 [2020-10-15 22:29:54,974 INFO L226 Difference]: Without dead ends: 147354 [2020-10-15 22:29:54,974 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 22:29:56,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147354 states. [2020-10-15 22:29:58,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147354 to 43980. [2020-10-15 22:29:58,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43980 states. [2020-10-15 22:29:58,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43980 states to 43980 states and 230752 transitions. [2020-10-15 22:29:58,314 INFO L78 Accepts]: Start accepts. Automaton has 43980 states and 230752 transitions. Word has length 29 [2020-10-15 22:29:58,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:29:58,315 INFO L481 AbstractCegarLoop]: Abstraction has 43980 states and 230752 transitions. [2020-10-15 22:29:58,315 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:29:58,315 INFO L276 IsEmpty]: Start isEmpty. Operand 43980 states and 230752 transitions. [2020-10-15 22:29:58,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:29:58,323 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:29:58,323 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 22:29:58,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2020-10-15 22:29:58,324 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 22:29:58,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:29:58,324 INFO L82 PathProgramCache]: Analyzing trace with hash 601191358, now seen corresponding path program 6 times [2020-10-15 22:29:58,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:29:58,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006743253] [2020-10-15 22:29:58,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:29:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:29:58,372 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 22:29:58,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006743253] [2020-10-15 22:29:58,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:29:58,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:29:58,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156812030] [2020-10-15 22:29:58,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:29:58,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:29:58,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:29:58,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:29:58,374 INFO L87 Difference]: Start difference. First operand 43980 states and 230752 transitions. Second operand 9 states. [2020-10-15 22:30:00,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:30:00,405 INFO L93 Difference]: Finished difference Result 146606 states and 682087 transitions. [2020-10-15 22:30:00,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:30:00,405 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:30:00,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:30:00,852 INFO L225 Difference]: With dead ends: 146606 [2020-10-15 22:30:00,852 INFO L226 Difference]: Without dead ends: 146535 [2020-10-15 22:30:00,852 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 22:30:02,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146535 states. [2020-10-15 22:30:03,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146535 to 42813. [2020-10-15 22:30:03,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42813 states. [2020-10-15 22:30:04,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42813 states to 42813 states and 224792 transitions. [2020-10-15 22:30:04,116 INFO L78 Accepts]: Start accepts. Automaton has 42813 states and 224792 transitions. Word has length 29 [2020-10-15 22:30:04,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:30:04,116 INFO L481 AbstractCegarLoop]: Abstraction has 42813 states and 224792 transitions. [2020-10-15 22:30:04,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:30:04,117 INFO L276 IsEmpty]: Start isEmpty. Operand 42813 states and 224792 transitions. [2020-10-15 22:30:04,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-15 22:30:04,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:30:04,127 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:30:04,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2020-10-15 22:30:04,128 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 22:30:04,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:30:04,128 INFO L82 PathProgramCache]: Analyzing trace with hash 58023263, now seen corresponding path program 1 times [2020-10-15 22:30:04,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:30:04,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293389074] [2020-10-15 22:30:04,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:30:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:30:04,134 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:30:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:30:04,138 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:30:04,146 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 22:30:04,147 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 22:30:04,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2020-10-15 22:30:04,148 WARN L371 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 22:30:04,148 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2020-10-15 22:30:04,164 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,164 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,164 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,164 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,164 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,164 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,165 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,165 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,165 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,165 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,165 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,165 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,165 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,166 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,166 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,166 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,166 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,166 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,166 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,166 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,166 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,167 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,167 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,167 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,167 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,167 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,167 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,167 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,167 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,168 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,168 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,168 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,168 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,168 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,168 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,168 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,168 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,169 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,169 WARN L313 ript$VariableManager]: TermVariabe thr2Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,169 WARN L313 ript$VariableManager]: TermVariabe thr2Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,169 WARN L313 ript$VariableManager]: TermVariabe thr2Thread7of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,169 WARN L313 ript$VariableManager]: TermVariabe thr2Thread7of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,169 WARN L313 ript$VariableManager]: TermVariabe thr2Thread7of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,169 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,169 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,169 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,170 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,170 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,170 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,170 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,170 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,170 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,170 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,170 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,171 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,171 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,171 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,171 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,171 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,171 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,171 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,171 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,171 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,172 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,172 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,172 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,172 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,172 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,172 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,172 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,173 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,173 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,173 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,173 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,173 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,173 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,173 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,173 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,174 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,174 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,174 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,174 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,174 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,174 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,174 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,174 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,175 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,175 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,175 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,175 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,175 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,175 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,175 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,175 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,176 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,176 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,176 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,176 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,176 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,176 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,176 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,176 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,177 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,177 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,177 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,177 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,177 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,177 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,177 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,177 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,177 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,178 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,178 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,178 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,178 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,178 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,178 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,178 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,179 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,179 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,179 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,179 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,179 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,179 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,179 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,179 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,180 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,180 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,180 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,180 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,180 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,180 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,180 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,180 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,181 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,181 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,181 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,181 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,181 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,181 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,181 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,181 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,182 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,182 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,182 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,182 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,182 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,182 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,183 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,183 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,183 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,183 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,193 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,193 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,193 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,193 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,193 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,202 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,202 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,202 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,202 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,202 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,205 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,205 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,205 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,205 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,206 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,207 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,207 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,207 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,207 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,208 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,209 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,209 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,209 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,210 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,210 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,211 WARN L313 ript$VariableManager]: TermVariabe thr2Thread7of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,211 WARN L313 ript$VariableManager]: TermVariabe thr2Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,211 WARN L313 ript$VariableManager]: TermVariabe thr2Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,212 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,212 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,213 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,213 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,213 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,213 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,214 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,214 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,215 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,215 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,215 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,215 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,216 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,216 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,217 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,217 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,217 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,217 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,218 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,218 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,219 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,219 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,219 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,219 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,219 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,220 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,221 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,221 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,221 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,221 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,221 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,222 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,223 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,223 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,223 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,223 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,223 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,223 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,225 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,225 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,225 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,225 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,225 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,225 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:04,227 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-10-15 22:30:04,227 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:30:04,227 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:30:04,227 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:30:04,227 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:30:04,227 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:30:04,227 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:30:04,227 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:30:04,228 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:30:04,229 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:30:04,229 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 181 places, 159 transitions, 472 flow [2020-10-15 22:30:04,230 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 181 places, 159 transitions, 472 flow [2020-10-15 22:30:04,230 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 181 places, 159 transitions, 472 flow [2020-10-15 22:30:04,252 INFO L129 PetriNetUnfolder]: 9/193 cut-off events. [2020-10-15 22:30:04,252 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2020-10-15 22:30:04,254 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 22:30:04,262 INFO L117 LiptonReduction]: Number of co-enabled transitions 4448 [2020-10-15 22:30:06,898 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-15 22:30:07,009 INFO L132 LiptonReduction]: Checked pairs total: 7296 [2020-10-15 22:30:07,009 INFO L134 LiptonReduction]: Total number of compositions: 148 [2020-10-15 22:30:07,009 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 81 places, 51 transitions, 256 flow [2020-10-15 22:30:16,835 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 55763 states. [2020-10-15 22:30:16,835 INFO L276 IsEmpty]: Start isEmpty. Operand 55763 states. [2020-10-15 22:30:16,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-15 22:30:16,836 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:30:16,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-15 22:30:16,836 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 22:30:16,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:30:16,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1622843, now seen corresponding path program 1 times [2020-10-15 22:30:16,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:30:16,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975812993] [2020-10-15 22:30:16,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:30:16,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:30:16,851 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 22:30:16,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975812993] [2020-10-15 22:30:16,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:30:16,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:30:16,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117213331] [2020-10-15 22:30:16,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:30:16,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:30:16,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:30:16,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:30:16,852 INFO L87 Difference]: Start difference. First operand 55763 states. Second operand 3 states. [2020-10-15 22:30:17,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:30:17,216 INFO L93 Difference]: Finished difference Result 54360 states and 318970 transitions. [2020-10-15 22:30:17,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:30:17,216 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-15 22:30:17,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:30:17,388 INFO L225 Difference]: With dead ends: 54360 [2020-10-15 22:30:17,388 INFO L226 Difference]: Without dead ends: 51079 [2020-10-15 22:30:17,388 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 22:30:20,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51079 states. [2020-10-15 22:30:21,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51079 to 51079. [2020-10-15 22:30:21,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51079 states. [2020-10-15 22:30:21,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51079 states to 51079 states and 298193 transitions. [2020-10-15 22:30:21,279 INFO L78 Accepts]: Start accepts. Automaton has 51079 states and 298193 transitions. Word has length 3 [2020-10-15 22:30:21,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:30:21,279 INFO L481 AbstractCegarLoop]: Abstraction has 51079 states and 298193 transitions. [2020-10-15 22:30:21,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:30:21,279 INFO L276 IsEmpty]: Start isEmpty. Operand 51079 states and 298193 transitions. [2020-10-15 22:30:21,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 22:30:21,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:30:21,279 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:30:21,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2020-10-15 22:30:21,281 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 22:30:21,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:30:21,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1940021698, now seen corresponding path program 1 times [2020-10-15 22:30:21,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:30:21,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862315648] [2020-10-15 22:30:21,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:30:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:30:21,298 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 22:30:21,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862315648] [2020-10-15 22:30:21,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:30:21,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:30:21,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022264505] [2020-10-15 22:30:21,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:30:21,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:30:21,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:30:21,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:30:21,300 INFO L87 Difference]: Start difference. First operand 51079 states and 298193 transitions. Second operand 5 states. [2020-10-15 22:30:21,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:30:21,951 INFO L93 Difference]: Finished difference Result 96937 states and 538177 transitions. [2020-10-15 22:30:21,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:30:21,951 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-15 22:30:21,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:30:22,278 INFO L225 Difference]: With dead ends: 96937 [2020-10-15 22:30:22,279 INFO L226 Difference]: Without dead ends: 96928 [2020-10-15 22:30:22,279 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 22:30:30,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96928 states. [2020-10-15 22:30:32,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96928 to 61361. [2020-10-15 22:30:32,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61361 states. [2020-10-15 22:30:32,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61361 states to 61361 states and 361700 transitions. [2020-10-15 22:30:32,493 INFO L78 Accepts]: Start accepts. Automaton has 61361 states and 361700 transitions. Word has length 9 [2020-10-15 22:30:32,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:30:32,493 INFO L481 AbstractCegarLoop]: Abstraction has 61361 states and 361700 transitions. [2020-10-15 22:30:32,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:30:32,493 INFO L276 IsEmpty]: Start isEmpty. Operand 61361 states and 361700 transitions. [2020-10-15 22:30:32,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:30:32,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:30:32,494 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:30:32,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2020-10-15 22:30:32,494 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 22:30:32,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:30:32,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1408430290, now seen corresponding path program 1 times [2020-10-15 22:30:32,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:30:32,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251155141] [2020-10-15 22:30:32,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:30:32,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:30:32,511 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 22:30:32,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251155141] [2020-10-15 22:30:32,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:30:32,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:30:32,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201281058] [2020-10-15 22:30:32,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:30:32,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:30:32,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:30:32,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:30:32,513 INFO L87 Difference]: Start difference. First operand 61361 states and 361700 transitions. Second operand 5 states. [2020-10-15 22:30:33,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:30:33,302 INFO L93 Difference]: Finished difference Result 115105 states and 647870 transitions. [2020-10-15 22:30:33,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:30:33,303 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 22:30:33,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:30:33,673 INFO L225 Difference]: With dead ends: 115105 [2020-10-15 22:30:33,674 INFO L226 Difference]: Without dead ends: 115086 [2020-10-15 22:30:33,674 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 22:30:38,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115086 states. [2020-10-15 22:30:40,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115086 to 74729. [2020-10-15 22:30:40,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74729 states. [2020-10-15 22:30:40,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74729 states to 74729 states and 446528 transitions. [2020-10-15 22:30:40,737 INFO L78 Accepts]: Start accepts. Automaton has 74729 states and 446528 transitions. Word has length 13 [2020-10-15 22:30:40,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:30:40,737 INFO L481 AbstractCegarLoop]: Abstraction has 74729 states and 446528 transitions. [2020-10-15 22:30:40,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:30:40,737 INFO L276 IsEmpty]: Start isEmpty. Operand 74729 states and 446528 transitions. [2020-10-15 22:30:40,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:30:40,737 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:30:40,737 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:30:40,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2020-10-15 22:30:40,738 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 22:30:40,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:30:40,738 INFO L82 PathProgramCache]: Analyzing trace with hash 586807343, now seen corresponding path program 1 times [2020-10-15 22:30:40,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:30:40,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496710093] [2020-10-15 22:30:40,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:30:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:30:40,769 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 22:30:40,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496710093] [2020-10-15 22:30:40,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:30:40,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:30:40,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304116632] [2020-10-15 22:30:40,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:30:40,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:30:40,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:30:40,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:30:40,771 INFO L87 Difference]: Start difference. First operand 74729 states and 446528 transitions. Second operand 7 states. [2020-10-15 22:30:42,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:30:42,074 INFO L93 Difference]: Finished difference Result 183405 states and 977356 transitions. [2020-10-15 22:30:42,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:30:42,075 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-15 22:30:42,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:30:42,688 INFO L225 Difference]: With dead ends: 183405 [2020-10-15 22:30:42,689 INFO L226 Difference]: Without dead ends: 183386 [2020-10-15 22:30:42,689 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 22:30:54,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183386 states. [2020-10-15 22:30:56,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183386 to 74375. [2020-10-15 22:30:56,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74375 states. [2020-10-15 22:30:56,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74375 states to 74375 states and 444112 transitions. [2020-10-15 22:30:56,467 INFO L78 Accepts]: Start accepts. Automaton has 74375 states and 444112 transitions. Word has length 15 [2020-10-15 22:30:56,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:30:56,467 INFO L481 AbstractCegarLoop]: Abstraction has 74375 states and 444112 transitions. [2020-10-15 22:30:56,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:30:56,467 INFO L276 IsEmpty]: Start isEmpty. Operand 74375 states and 444112 transitions. [2020-10-15 22:30:56,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:30:56,467 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:30:56,467 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:30:56,467 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2020-10-15 22:30:56,468 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 22:30:56,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:30:56,468 INFO L82 PathProgramCache]: Analyzing trace with hash 576093743, now seen corresponding path program 2 times [2020-10-15 22:30:56,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:30:56,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672250501] [2020-10-15 22:30:56,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:30:56,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:30:56,503 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 22:30:56,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672250501] [2020-10-15 22:30:56,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:30:56,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:30:56,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387787166] [2020-10-15 22:30:56,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:30:56,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:30:56,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:30:56,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:30:56,505 INFO L87 Difference]: Start difference. First operand 74375 states and 444112 transitions. Second operand 7 states. [2020-10-15 22:30:57,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:30:57,862 INFO L93 Difference]: Finished difference Result 188187 states and 1003599 transitions. [2020-10-15 22:30:57,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:30:57,863 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-15 22:30:57,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:30:58,495 INFO L225 Difference]: With dead ends: 188187 [2020-10-15 22:30:58,495 INFO L226 Difference]: Without dead ends: 188167 [2020-10-15 22:30:58,495 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 22:31:04,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188167 states. [2020-10-15 22:31:13,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188167 to 73326. [2020-10-15 22:31:13,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73326 states. [2020-10-15 22:31:14,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73326 states to 73326 states and 437534 transitions. [2020-10-15 22:31:14,198 INFO L78 Accepts]: Start accepts. Automaton has 73326 states and 437534 transitions. Word has length 15 [2020-10-15 22:31:14,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:31:14,198 INFO L481 AbstractCegarLoop]: Abstraction has 73326 states and 437534 transitions. [2020-10-15 22:31:14,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:31:14,198 INFO L276 IsEmpty]: Start isEmpty. Operand 73326 states and 437534 transitions. [2020-10-15 22:31:14,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 22:31:14,198 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:31:14,198 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:31:14,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2020-10-15 22:31:14,199 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 22:31:14,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:31:14,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1852086090, now seen corresponding path program 1 times [2020-10-15 22:31:14,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:31:14,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816092090] [2020-10-15 22:31:14,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:31:14,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:31:14,217 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 22:31:14,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816092090] [2020-10-15 22:31:14,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:31:14,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:31:14,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331179391] [2020-10-15 22:31:14,218 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:31:14,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:31:14,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:31:14,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:31:14,219 INFO L87 Difference]: Start difference. First operand 73326 states and 437534 transitions. Second operand 5 states. [2020-10-15 22:31:15,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:31:15,183 INFO L93 Difference]: Finished difference Result 136306 states and 779274 transitions. [2020-10-15 22:31:15,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:31:15,183 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-15 22:31:15,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:31:15,653 INFO L225 Difference]: With dead ends: 136306 [2020-10-15 22:31:15,653 INFO L226 Difference]: Without dead ends: 136270 [2020-10-15 22:31:15,654 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 22:31:19,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136270 states. [2020-10-15 22:31:23,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136270 to 91328. [2020-10-15 22:31:23,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91328 states. [2020-10-15 22:31:23,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91328 states to 91328 states and 551878 transitions. [2020-10-15 22:31:23,490 INFO L78 Accepts]: Start accepts. Automaton has 91328 states and 551878 transitions. Word has length 17 [2020-10-15 22:31:23,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:31:23,490 INFO L481 AbstractCegarLoop]: Abstraction has 91328 states and 551878 transitions. [2020-10-15 22:31:23,490 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:31:23,490 INFO L276 IsEmpty]: Start isEmpty. Operand 91328 states and 551878 transitions. [2020-10-15 22:31:23,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:31:23,490 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:31:23,490 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:31:23,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2020-10-15 22:31:23,491 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 22:31:23,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:31:23,491 INFO L82 PathProgramCache]: Analyzing trace with hash 805259199, now seen corresponding path program 1 times [2020-10-15 22:31:23,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:31:23,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455396410] [2020-10-15 22:31:23,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:31:23,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:31:23,522 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 22:31:23,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455396410] [2020-10-15 22:31:23,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722810912] [2020-10-15 22:31:23,522 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 22:31:23,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:31:23,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:31:23,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:31:23,621 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 22:31:23,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:31:23,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-10-15 22:31:23,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102830698] [2020-10-15 22:31:23,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:31:23,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:31:23,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:31:23,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:31:23,622 INFO L87 Difference]: Start difference. First operand 91328 states and 551878 transitions. Second operand 7 states. [2020-10-15 22:31:25,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:31:25,306 INFO L93 Difference]: Finished difference Result 220702 states and 1196059 transitions. [2020-10-15 22:31:25,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:31:25,307 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 22:31:25,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:31:28,088 INFO L225 Difference]: With dead ends: 220702 [2020-10-15 22:31:28,088 INFO L226 Difference]: Without dead ends: 220672 [2020-10-15 22:31:28,088 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 22:31:33,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220672 states. [2020-10-15 22:31:43,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220672 to 92876. [2020-10-15 22:31:43,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92876 states. [2020-10-15 22:31:44,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92876 states to 92876 states and 560664 transitions. [2020-10-15 22:31:44,148 INFO L78 Accepts]: Start accepts. Automaton has 92876 states and 560664 transitions. Word has length 19 [2020-10-15 22:31:44,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:31:44,148 INFO L481 AbstractCegarLoop]: Abstraction has 92876 states and 560664 transitions. [2020-10-15 22:31:44,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:31:44,148 INFO L276 IsEmpty]: Start isEmpty. Operand 92876 states and 560664 transitions. [2020-10-15 22:31:44,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:31:44,148 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:31:44,149 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:31:44,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193,79 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:31:44,349 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 22:31:44,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:31:44,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1738279999, now seen corresponding path program 2 times [2020-10-15 22:31:44,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:31:44,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340671825] [2020-10-15 22:31:44,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:31:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:31:44,385 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 22:31:44,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340671825] [2020-10-15 22:31:44,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:31:44,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:31:44,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616506125] [2020-10-15 22:31:44,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:31:44,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:31:44,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:31:44,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:31:44,387 INFO L87 Difference]: Start difference. First operand 92876 states and 560664 transitions. Second operand 7 states. [2020-10-15 22:31:46,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:31:46,158 INFO L93 Difference]: Finished difference Result 226856 states and 1230554 transitions. [2020-10-15 22:31:46,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:31:46,158 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 22:31:46,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:31:48,954 INFO L225 Difference]: With dead ends: 226856 [2020-10-15 22:31:48,955 INFO L226 Difference]: Without dead ends: 226815 [2020-10-15 22:31:48,955 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 22:31:54,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226815 states. [2020-10-15 22:32:04,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226815 to 91841. [2020-10-15 22:32:04,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91841 states. [2020-10-15 22:32:04,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91841 states to 91841 states and 554890 transitions. [2020-10-15 22:32:04,989 INFO L78 Accepts]: Start accepts. Automaton has 91841 states and 554890 transitions. Word has length 19 [2020-10-15 22:32:04,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:32:04,990 INFO L481 AbstractCegarLoop]: Abstraction has 91841 states and 554890 transitions. [2020-10-15 22:32:04,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:32:04,990 INFO L276 IsEmpty]: Start isEmpty. Operand 91841 states and 554890 transitions. [2020-10-15 22:32:04,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:32:04,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:32:04,990 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:32:04,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2020-10-15 22:32:04,991 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 22:32:04,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:32:04,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1738268839, now seen corresponding path program 1 times [2020-10-15 22:32:04,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:32:04,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324279291] [2020-10-15 22:32:04,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:32:04,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:32:05,023 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 22:32:05,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324279291] [2020-10-15 22:32:05,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:32:05,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:32:05,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869499240] [2020-10-15 22:32:05,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:32:05,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:32:05,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:32:05,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:32:05,024 INFO L87 Difference]: Start difference. First operand 91841 states and 554890 transitions. Second operand 7 states. Received shutdown request... [2020-10-15 22:32:07,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:32:07,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2020-10-15 22:32:07,767 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-15 22:32:07,770 WARN L235 ceAbstractionStarter]: Timeout [2020-10-15 22:32:07,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 10:32:07 BasicIcfg [2020-10-15 22:32:07,771 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 22:32:07,772 INFO L168 Benchmark]: Toolchain (without parser) took 765544.77 ms. Allocated memory was 250.1 MB in the beginning and 6.1 GB in the end (delta: 5.9 GB). Free memory was 205.1 MB in the beginning and 3.7 GB in the end (delta: -3.5 GB). Peak memory consumption was 4.5 GB. Max. memory is 14.2 GB. [2020-10-15 22:32:07,772 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 250.1 MB. Free memory is still 226.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:32:07,773 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.63 ms. Allocated memory was 250.1 MB in the beginning and 310.4 MB in the end (delta: 60.3 MB). Free memory was 205.1 MB in the beginning and 266.2 MB in the end (delta: -61.1 MB). Peak memory consumption was 29.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:32:07,773 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.89 ms. Allocated memory is still 310.4 MB. Free memory was 266.2 MB in the beginning and 263.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:32:07,773 INFO L168 Benchmark]: Boogie Preprocessor took 28.42 ms. Allocated memory is still 310.4 MB. Free memory was 263.7 MB in the beginning and 261.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:32:07,773 INFO L168 Benchmark]: RCFGBuilder took 434.07 ms. Allocated memory is still 310.4 MB. Free memory was 261.2 MB in the beginning and 241.9 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 14.2 GB. [2020-10-15 22:32:07,774 INFO L168 Benchmark]: TraceAbstraction took 764337.98 ms. Allocated memory was 310.4 MB in the beginning and 6.1 GB in the end (delta: 5.8 GB). Free memory was 241.9 MB in the beginning and 3.7 GB in the end (delta: -3.4 GB). Peak memory consumption was 4.5 GB. Max. memory is 14.2 GB. [2020-10-15 22:32:07,775 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 250.1 MB. Free memory is still 226.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 689.63 ms. Allocated memory was 250.1 MB in the beginning and 310.4 MB in the end (delta: 60.3 MB). Free memory was 205.1 MB in the beginning and 266.2 MB in the end (delta: -61.1 MB). Peak memory consumption was 29.5 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 49.89 ms. Allocated memory is still 310.4 MB. Free memory was 266.2 MB in the beginning and 263.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 28.42 ms. Allocated memory is still 310.4 MB. Free memory was 263.7 MB in the beginning and 261.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 434.07 ms. Allocated memory is still 310.4 MB. Free memory was 261.2 MB in the beginning and 241.9 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 14.2 GB. * TraceAbstraction took 764337.98 ms. Allocated memory was 310.4 MB in the beginning and 6.1 GB in the end (delta: 5.8 GB). Free memory was 241.9 MB in the beginning and 3.7 GB in the end (delta: -3.4 GB). Peak memory consumption was 4.5 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: 0.1s, 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: 1.6s, 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: 1.9s, 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: 2.1s, 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 (179984 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: 763.8s, OverallIterations: 196, TraceHistogramMax: 7, AutomataDifference: 258.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 24.5s, 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, 51.6s 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: 443.9s AutomataMinimizationTime, 189 MinimizatonAttempts, 11270369 StatesRemovedByMinimization, 181 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 10.2s 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