/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-wmm/safe019_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 22:12:59,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 22:12:59,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 22:12:59,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 22:12:59,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 22:12:59,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 22:12:59,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 22:12:59,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 22:12:59,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 22:12:59,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 22:12:59,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 22:12:59,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 22:12:59,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 22:12:59,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 22:12:59,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 22:12:59,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 22:12:59,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 22:12:59,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 22:12:59,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 22:12:59,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 22:12:59,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 22:12:59,870 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 22:12:59,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 22:12:59,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 22:12:59,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 22:12:59,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 22:12:59,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 22:12:59,883 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 22:12:59,883 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 22:12:59,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 22:12:59,885 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 22:12:59,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 22:12:59,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 22:12:59,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 22:12:59,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 22:12:59,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 22:12:59,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 22:12:59,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 22:12:59,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 22:12:59,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 22:12:59,902 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 22:12:59,906 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 22:12:59,948 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 22:12:59,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 22:12:59,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 22:12:59,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 22:12:59,951 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 22:12:59,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 22:12:59,951 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 22:12:59,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 22:12:59,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 22:12:59,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 22:12:59,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 22:12:59,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 22:12:59,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 22:12:59,953 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 22:12:59,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 22:12:59,953 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 22:12:59,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 22:12:59,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 22:12:59,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 22:12:59,955 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 22:12:59,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 22:12:59,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:12:59,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 22:12:59,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 22:12:59,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 22:12:59,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 22:12:59,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 22:12:59,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 22:12:59,957 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 22:13:00,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 22:13:00,309 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 22:13:00,313 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 22:13:00,315 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 22:13:00,315 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 22:13:00,316 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2020-10-15 22:13:00,383 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d56cb100/b4b07608c92f44ff8bbb19f8b3043833/FLAG8a354efc4 [2020-10-15 22:13:00,939 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 22:13:00,940 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2020-10-15 22:13:00,955 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d56cb100/b4b07608c92f44ff8bbb19f8b3043833/FLAG8a354efc4 [2020-10-15 22:13:01,219 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d56cb100/b4b07608c92f44ff8bbb19f8b3043833 [2020-10-15 22:13:01,228 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 22:13:01,230 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 22:13:01,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 22:13:01,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 22:13:01,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 22:13:01,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:13:01" (1/1) ... [2020-10-15 22:13:01,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c17228a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:01, skipping insertion in model container [2020-10-15 22:13:01,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:13:01" (1/1) ... [2020-10-15 22:13:01,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 22:13:01,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 22:13:01,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:13:01,831 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 22:13:01,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:13:01,981 INFO L208 MainTranslator]: Completed translation [2020-10-15 22:13:01,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:01 WrapperNode [2020-10-15 22:13:01,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 22:13:01,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 22:13:01,983 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 22:13:01,983 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 22:13:01,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:01" (1/1) ... [2020-10-15 22:13:02,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:01" (1/1) ... [2020-10-15 22:13:02,033 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 22:13:02,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 22:13:02,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 22:13:02,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 22:13:02,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:01" (1/1) ... [2020-10-15 22:13:02,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:01" (1/1) ... [2020-10-15 22:13:02,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:01" (1/1) ... [2020-10-15 22:13:02,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:01" (1/1) ... [2020-10-15 22:13:02,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:01" (1/1) ... [2020-10-15 22:13:02,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:01" (1/1) ... [2020-10-15 22:13:02,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:01" (1/1) ... [2020-10-15 22:13:02,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 22:13:02,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 22:13:02,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 22:13:02,061 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 22:13:02,062 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:01" (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 22:13:02,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 22:13:02,130 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 22:13:02,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 22:13:02,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 22:13:02,130 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 22:13:02,131 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 22:13:02,132 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 22:13:02,132 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 22:13:02,133 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 22:13:02,133 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 22:13:02,135 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-15 22:13:02,135 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-15 22:13:02,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 22:13:02,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 22:13:02,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 22:13:02,138 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 22:13:02,499 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 22:13:02,500 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 22:13:02,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:13:02 BoogieIcfgContainer [2020-10-15 22:13:02,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 22:13:02,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 22:13:02,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 22:13:02,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 22:13:02,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:13:01" (1/3) ... [2020-10-15 22:13:02,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@132423bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:13:02, skipping insertion in model container [2020-10-15 22:13:02,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:01" (2/3) ... [2020-10-15 22:13:02,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@132423bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:13:02, skipping insertion in model container [2020-10-15 22:13:02,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:13:02" (3/3) ... [2020-10-15 22:13:02,524 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc.i [2020-10-15 22:13:02,533 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 22:13:02,534 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 22:13:02,539 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 22:13:02,540 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 22:13:02,572 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,572 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,573 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,574 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,574 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,574 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,575 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,575 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,575 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,576 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,576 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,576 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,577 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,577 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,577 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,577 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,578 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,578 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,578 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,579 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,579 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,579 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,579 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,581 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,585 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,586 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,586 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,586 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,602 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,602 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,603 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,603 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,606 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,607 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,607 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,607 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,610 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,610 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,610 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,611 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:02,626 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 22:13:02,645 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:13:02,645 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:13:02,645 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:13:02,645 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:13:02,645 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:13:02,646 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:13:02,646 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:13:02,646 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:13:02,659 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:13:02,661 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 81 transitions, 182 flow [2020-10-15 22:13:02,664 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 81 transitions, 182 flow [2020-10-15 22:13:02,666 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-10-15 22:13:02,718 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-10-15 22:13:02,718 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 22:13:02,724 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-15 22:13:02,728 INFO L117 LiptonReduction]: Number of co-enabled transitions 1822 [2020-10-15 22:13:04,429 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-10-15 22:13:04,692 INFO L132 LiptonReduction]: Checked pairs total: 3343 [2020-10-15 22:13:04,692 INFO L134 LiptonReduction]: Total number of compositions: 67 [2020-10-15 22:13:04,699 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 25 transitions, 70 flow [2020-10-15 22:13:04,748 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-10-15 22:13:04,750 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-10-15 22:13:04,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 22:13:04,761 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:04,762 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:04,763 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:04,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:04,769 INFO L82 PathProgramCache]: Analyzing trace with hash -2005095105, now seen corresponding path program 1 times [2020-10-15 22:13:04,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:04,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369932616] [2020-10-15 22:13:04,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:05,000 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 22:13:05,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369932616] [2020-10-15 22:13:05,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:05,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:13:05,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669134840] [2020-10-15 22:13:05,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:13:05,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:05,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:13:05,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:13:05,024 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-10-15 22:13:05,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:05,093 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-10-15 22:13:05,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:13:05,095 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-15 22:13:05,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:05,129 INFO L225 Difference]: With dead ends: 670 [2020-10-15 22:13:05,129 INFO L226 Difference]: Without dead ends: 526 [2020-10-15 22:13:05,130 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 22:13:05,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-10-15 22:13:05,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-10-15 22:13:05,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-10-15 22:13:05,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-10-15 22:13:05,301 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-10-15 22:13:05,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:05,303 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-10-15 22:13:05,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:13:05,304 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-10-15 22:13:05,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 22:13:05,307 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:05,308 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:05,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 22:13:05,308 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:05,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:05,309 INFO L82 PathProgramCache]: Analyzing trace with hash -2027599793, now seen corresponding path program 1 times [2020-10-15 22:13:05,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:05,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29884464] [2020-10-15 22:13:05,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:05,401 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 22:13:05,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29884464] [2020-10-15 22:13:05,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:05,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:13:05,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840419312] [2020-10-15 22:13:05,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:13:05,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:05,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:13:05,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:13:05,405 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-10-15 22:13:05,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:05,443 INFO L93 Difference]: Finished difference Result 682 states and 2180 transitions. [2020-10-15 22:13:05,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:13:05,443 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-15 22:13:05,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:05,448 INFO L225 Difference]: With dead ends: 682 [2020-10-15 22:13:05,448 INFO L226 Difference]: Without dead ends: 394 [2020-10-15 22:13:05,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:13:05,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-15 22:13:05,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-10-15 22:13:05,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-15 22:13:05,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1224 transitions. [2020-10-15 22:13:05,467 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1224 transitions. Word has length 11 [2020-10-15 22:13:05,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:05,467 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1224 transitions. [2020-10-15 22:13:05,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:13:05,468 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1224 transitions. [2020-10-15 22:13:05,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 22:13:05,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:05,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:05,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 22:13:05,470 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:05,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:05,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1004375926, now seen corresponding path program 1 times [2020-10-15 22:13:05,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:05,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83359221] [2020-10-15 22:13:05,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:05,549 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 22:13:05,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83359221] [2020-10-15 22:13:05,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:05,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:13:05,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953589516] [2020-10-15 22:13:05,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:13:05,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:05,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:13:05,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:13:05,553 INFO L87 Difference]: Start difference. First operand 394 states and 1224 transitions. Second operand 3 states. [2020-10-15 22:13:05,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:05,593 INFO L93 Difference]: Finished difference Result 386 states and 1190 transitions. [2020-10-15 22:13:05,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:13:05,594 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-15 22:13:05,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:05,598 INFO L225 Difference]: With dead ends: 386 [2020-10-15 22:13:05,598 INFO L226 Difference]: Without dead ends: 386 [2020-10-15 22:13:05,599 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 22:13:05,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-10-15 22:13:05,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2020-10-15 22:13:05,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-10-15 22:13:05,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 1190 transitions. [2020-10-15 22:13:05,614 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 1190 transitions. Word has length 12 [2020-10-15 22:13:05,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:05,614 INFO L481 AbstractCegarLoop]: Abstraction has 386 states and 1190 transitions. [2020-10-15 22:13:05,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:13:05,615 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 1190 transitions. [2020-10-15 22:13:05,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:13:05,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:05,622 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:05,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 22:13:05,622 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:05,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:05,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1071238165, now seen corresponding path program 1 times [2020-10-15 22:13:05,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:05,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433669885] [2020-10-15 22:13:05,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:05,714 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 22:13:05,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433669885] [2020-10-15 22:13:05,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:05,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:13:05,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343846157] [2020-10-15 22:13:05,716 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:13:05,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:05,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:13:05,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:13:05,717 INFO L87 Difference]: Start difference. First operand 386 states and 1190 transitions. Second operand 3 states. [2020-10-15 22:13:05,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:05,731 INFO L93 Difference]: Finished difference Result 466 states and 1378 transitions. [2020-10-15 22:13:05,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:13:05,732 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-15 22:13:05,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:05,735 INFO L225 Difference]: With dead ends: 466 [2020-10-15 22:13:05,735 INFO L226 Difference]: Without dead ends: 402 [2020-10-15 22:13:05,736 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 22:13:05,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-10-15 22:13:05,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 370. [2020-10-15 22:13:05,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-10-15 22:13:05,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1098 transitions. [2020-10-15 22:13:05,750 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1098 transitions. Word has length 13 [2020-10-15 22:13:05,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:05,750 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 1098 transitions. [2020-10-15 22:13:05,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:13:05,750 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1098 transitions. [2020-10-15 22:13:05,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:13:05,751 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:05,752 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:05,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 22:13:05,752 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:05,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:05,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1070883463, now seen corresponding path program 1 times [2020-10-15 22:13:05,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:05,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405249809] [2020-10-15 22:13:05,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:05,813 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 22:13:05,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405249809] [2020-10-15 22:13:05,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:05,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:13:05,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848516914] [2020-10-15 22:13:05,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:13:05,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:05,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:13:05,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:13:05,815 INFO L87 Difference]: Start difference. First operand 370 states and 1098 transitions. Second operand 3 states. [2020-10-15 22:13:05,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:05,826 INFO L93 Difference]: Finished difference Result 358 states and 1054 transitions. [2020-10-15 22:13:05,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:13:05,827 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-15 22:13:05,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:05,829 INFO L225 Difference]: With dead ends: 358 [2020-10-15 22:13:05,830 INFO L226 Difference]: Without dead ends: 358 [2020-10-15 22:13:05,830 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 22:13:05,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-10-15 22:13:05,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2020-10-15 22:13:05,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-10-15 22:13:05,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 1054 transitions. [2020-10-15 22:13:05,842 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 1054 transitions. Word has length 13 [2020-10-15 22:13:05,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:05,843 INFO L481 AbstractCegarLoop]: Abstraction has 358 states and 1054 transitions. [2020-10-15 22:13:05,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:13:05,843 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 1054 transitions. [2020-10-15 22:13:05,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 22:13:05,844 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:05,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:05,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 22:13:05,845 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:05,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:05,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1189218785, now seen corresponding path program 1 times [2020-10-15 22:13:05,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:05,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867037146] [2020-10-15 22:13:05,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:05,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:05,890 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 22:13:05,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867037146] [2020-10-15 22:13:05,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:05,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:13:05,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955313080] [2020-10-15 22:13:05,891 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:13:05,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:05,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:13:05,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:13:05,892 INFO L87 Difference]: Start difference. First operand 358 states and 1054 transitions. Second operand 4 states. [2020-10-15 22:13:05,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:05,914 INFO L93 Difference]: Finished difference Result 514 states and 1482 transitions. [2020-10-15 22:13:05,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:13:05,914 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-15 22:13:05,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:05,917 INFO L225 Difference]: With dead ends: 514 [2020-10-15 22:13:05,917 INFO L226 Difference]: Without dead ends: 274 [2020-10-15 22:13:05,918 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:13:05,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-10-15 22:13:05,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2020-10-15 22:13:05,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-10-15 22:13:05,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 775 transitions. [2020-10-15 22:13:05,927 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 775 transitions. Word has length 14 [2020-10-15 22:13:05,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:05,927 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 775 transitions. [2020-10-15 22:13:05,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:13:05,928 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 775 transitions. [2020-10-15 22:13:05,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 22:13:05,929 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:05,929 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:05,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 22:13:05,929 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:05,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:05,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1162350155, now seen corresponding path program 2 times [2020-10-15 22:13:05,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:05,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362393343] [2020-10-15 22:13:05,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:05,994 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 22:13:05,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362393343] [2020-10-15 22:13:05,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:05,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:13:05,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055593388] [2020-10-15 22:13:05,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:13:05,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:05,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:13:05,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:13:05,996 INFO L87 Difference]: Start difference. First operand 274 states and 775 transitions. Second operand 4 states. [2020-10-15 22:13:06,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:06,031 INFO L93 Difference]: Finished difference Result 345 states and 911 transitions. [2020-10-15 22:13:06,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:13:06,032 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-15 22:13:06,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:06,034 INFO L225 Difference]: With dead ends: 345 [2020-10-15 22:13:06,034 INFO L226 Difference]: Without dead ends: 252 [2020-10-15 22:13:06,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:13:06,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-15 22:13:06,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2020-10-15 22:13:06,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-10-15 22:13:06,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 675 transitions. [2020-10-15 22:13:06,043 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 675 transitions. Word has length 14 [2020-10-15 22:13:06,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:06,043 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 675 transitions. [2020-10-15 22:13:06,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:13:06,044 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 675 transitions. [2020-10-15 22:13:06,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:13:06,044 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:06,045 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:06,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 22:13:06,045 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:06,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:06,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1647463604, now seen corresponding path program 1 times [2020-10-15 22:13:06,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:06,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893626829] [2020-10-15 22:13:06,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:06,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:06,108 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 22:13:06,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893626829] [2020-10-15 22:13:06,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:06,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:13:06,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659361117] [2020-10-15 22:13:06,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:13:06,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:06,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:13:06,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:13:06,111 INFO L87 Difference]: Start difference. First operand 252 states and 675 transitions. Second operand 5 states. [2020-10-15 22:13:06,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:06,168 INFO L93 Difference]: Finished difference Result 278 states and 685 transitions. [2020-10-15 22:13:06,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:13:06,169 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-15 22:13:06,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:06,171 INFO L225 Difference]: With dead ends: 278 [2020-10-15 22:13:06,171 INFO L226 Difference]: Without dead ends: 203 [2020-10-15 22:13:06,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:13:06,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-10-15 22:13:06,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-10-15 22:13:06,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-15 22:13:06,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 492 transitions. [2020-10-15 22:13:06,180 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 492 transitions. Word has length 15 [2020-10-15 22:13:06,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:06,180 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 492 transitions. [2020-10-15 22:13:06,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:13:06,181 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 492 transitions. [2020-10-15 22:13:06,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-15 22:13:06,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:06,182 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:06,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 22:13:06,182 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:06,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:06,183 INFO L82 PathProgramCache]: Analyzing trace with hash -469082430, now seen corresponding path program 1 times [2020-10-15 22:13:06,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:06,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085699697] [2020-10-15 22:13:06,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:06,283 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 22:13:06,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085699697] [2020-10-15 22:13:06,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:06,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:13:06,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206720467] [2020-10-15 22:13:06,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 22:13:06,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:06,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 22:13:06,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:13:06,285 INFO L87 Difference]: Start difference. First operand 203 states and 492 transitions. Second operand 6 states. [2020-10-15 22:13:06,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:06,345 INFO L93 Difference]: Finished difference Result 200 states and 461 transitions. [2020-10-15 22:13:06,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 22:13:06,346 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-15 22:13:06,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:06,348 INFO L225 Difference]: With dead ends: 200 [2020-10-15 22:13:06,348 INFO L226 Difference]: Without dead ends: 162 [2020-10-15 22:13:06,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:13:06,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-15 22:13:06,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-10-15 22:13:06,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-15 22:13:06,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 375 transitions. [2020-10-15 22:13:06,356 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 375 transitions. Word has length 16 [2020-10-15 22:13:06,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:06,356 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 375 transitions. [2020-10-15 22:13:06,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 22:13:06,356 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 375 transitions. [2020-10-15 22:13:06,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 22:13:06,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:06,357 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:06,357 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 22:13:06,358 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:06,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:06,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1305224855, now seen corresponding path program 1 times [2020-10-15 22:13:06,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:06,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321292995] [2020-10-15 22:13:06,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:06,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:06,393 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 22:13:06,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321292995] [2020-10-15 22:13:06,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:06,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:13:06,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949582450] [2020-10-15 22:13:06,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:13:06,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:06,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:13:06,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:13:06,396 INFO L87 Difference]: Start difference. First operand 162 states and 375 transitions. Second operand 4 states. [2020-10-15 22:13:06,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:06,417 INFO L93 Difference]: Finished difference Result 194 states and 439 transitions. [2020-10-15 22:13:06,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:13:06,417 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-15 22:13:06,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:06,418 INFO L225 Difference]: With dead ends: 194 [2020-10-15 22:13:06,418 INFO L226 Difference]: Without dead ends: 127 [2020-10-15 22:13:06,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:13:06,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-15 22:13:06,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2020-10-15 22:13:06,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-15 22:13:06,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2020-10-15 22:13:06,423 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 18 [2020-10-15 22:13:06,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:06,423 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2020-10-15 22:13:06,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:13:06,424 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2020-10-15 22:13:06,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 22:13:06,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:06,424 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:06,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 22:13:06,425 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:06,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:06,425 INFO L82 PathProgramCache]: Analyzing trace with hash 483879941, now seen corresponding path program 2 times [2020-10-15 22:13:06,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:06,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027350081] [2020-10-15 22:13:06,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:06,497 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 22:13:06,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027350081] [2020-10-15 22:13:06,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:06,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:13:06,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969230804] [2020-10-15 22:13:06,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:13:06,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:06,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:13:06,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:13:06,499 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 7 states. [2020-10-15 22:13:06,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:06,563 INFO L93 Difference]: Finished difference Result 120 states and 253 transitions. [2020-10-15 22:13:06,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 22:13:06,564 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-15 22:13:06,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:06,564 INFO L225 Difference]: With dead ends: 120 [2020-10-15 22:13:06,565 INFO L226 Difference]: Without dead ends: 71 [2020-10-15 22:13:06,565 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:13:06,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-15 22:13:06,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-15 22:13:06,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-15 22:13:06,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-10-15 22:13:06,568 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 18 [2020-10-15 22:13:06,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:06,568 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-10-15 22:13:06,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:13:06,569 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-10-15 22:13:06,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-15 22:13:06,569 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:06,569 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:06,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 22:13:06,570 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:06,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:06,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1087350585, now seen corresponding path program 1 times [2020-10-15 22:13:06,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:06,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488364298] [2020-10-15 22:13:06,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:06,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:06,602 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 22:13:06,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488364298] [2020-10-15 22:13:06,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:06,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:13:06,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127858128] [2020-10-15 22:13:06,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:13:06,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:06,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:13:06,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:13:06,605 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-10-15 22:13:06,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:06,616 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-10-15 22:13:06,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:13:06,616 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-15 22:13:06,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:06,617 INFO L225 Difference]: With dead ends: 70 [2020-10-15 22:13:06,617 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 22:13:06,617 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:13:06,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 22:13:06,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 22:13:06,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 22:13:06,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 22:13:06,618 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-10-15 22:13:06,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:06,618 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 22:13:06,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:13:06,618 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 22:13:06,619 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 22:13:06,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 22:13:06,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 10:13:06 BasicIcfg [2020-10-15 22:13:06,623 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 22:13:06,625 INFO L168 Benchmark]: Toolchain (without parser) took 5395.14 ms. Allocated memory was 247.5 MB in the beginning and 429.4 MB in the end (delta: 181.9 MB). Free memory was 203.4 MB in the beginning and 335.4 MB in the end (delta: -132.0 MB). Peak memory consumption was 49.9 MB. Max. memory is 14.2 GB. [2020-10-15 22:13:06,625 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 247.5 MB. Free memory is still 223.8 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:13:06,626 INFO L168 Benchmark]: CACSL2BoogieTranslator took 751.97 ms. Allocated memory was 247.5 MB in the beginning and 303.6 MB in the end (delta: 56.1 MB). Free memory was 203.4 MB in the beginning and 256.9 MB in the end (delta: -53.5 MB). Peak memory consumption was 29.2 MB. Max. memory is 14.2 GB. [2020-10-15 22:13:06,627 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.25 ms. Allocated memory is still 303.6 MB. Free memory was 256.9 MB in the beginning and 254.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:13:06,628 INFO L168 Benchmark]: Boogie Preprocessor took 26.92 ms. Allocated memory is still 303.6 MB. Free memory was 254.4 MB in the beginning and 251.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:13:06,628 INFO L168 Benchmark]: RCFGBuilder took 446.41 ms. Allocated memory is still 303.6 MB. Free memory was 251.9 MB in the beginning and 227.5 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. [2020-10-15 22:13:06,629 INFO L168 Benchmark]: TraceAbstraction took 4104.83 ms. Allocated memory was 303.6 MB in the beginning and 429.4 MB in the end (delta: 125.8 MB). Free memory was 227.5 MB in the beginning and 335.4 MB in the end (delta: -107.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 14.2 GB. [2020-10-15 22:13:06,633 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 247.5 MB. Free memory is still 223.8 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 751.97 ms. Allocated memory was 247.5 MB in the beginning and 303.6 MB in the end (delta: 56.1 MB). Free memory was 203.4 MB in the beginning and 256.9 MB in the end (delta: -53.5 MB). Peak memory consumption was 29.2 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 50.25 ms. Allocated memory is still 303.6 MB. Free memory was 256.9 MB in the beginning and 254.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.92 ms. Allocated memory is still 303.6 MB. Free memory was 254.4 MB in the beginning and 251.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 446.41 ms. Allocated memory is still 303.6 MB. Free memory was 251.9 MB in the beginning and 227.5 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 4104.83 ms. Allocated memory was 303.6 MB in the beginning and 429.4 MB in the end (delta: 125.8 MB). Free memory was 227.5 MB in the beginning and 335.4 MB in the end (delta: -107.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1203 VarBasedMoverChecksPositive, 62 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 44 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 104 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.0s, 92 PlacesBefore, 38 PlacesAfterwards, 81 TransitionsBefore, 25 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 67 TotalNumberOfCompositions, 3343 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 258 SDtfs, 237 SDslu, 349 SDs, 0 SdLazy, 196 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 34 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 6430 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 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 proved your program to be correct! Received shutdown request...