/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 18:35:34,405 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 18:35:34,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 18:35:34,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 18:35:34,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 18:35:34,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 18:35:34,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 18:35:34,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 18:35:34,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 18:35:34,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 18:35:34,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 18:35:34,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 18:35:34,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 18:35:34,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 18:35:34,443 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 18:35:34,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 18:35:34,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 18:35:34,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 18:35:34,448 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 18:35:34,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 18:35:34,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 18:35:34,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 18:35:34,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 18:35:34,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 18:35:34,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 18:35:34,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 18:35:34,458 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 18:35:34,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 18:35:34,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 18:35:34,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 18:35:34,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 18:35:34,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 18:35:34,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 18:35:34,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 18:35:34,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 18:35:34,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 18:35:34,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 18:35:34,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 18:35:34,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 18:35:34,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 18:35:34,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 18:35:34,468 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 18:35:34,490 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 18:35:34,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 18:35:34,492 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 18:35:34,492 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 18:35:34,492 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 18:35:34,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 18:35:34,493 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 18:35:34,493 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 18:35:34,493 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 18:35:34,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 18:35:34,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 18:35:34,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 18:35:34,494 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 18:35:34,494 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 18:35:34,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 18:35:34,495 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 18:35:34,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 18:35:34,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 18:35:34,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 18:35:34,495 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 18:35:34,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 18:35:34,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:35:34,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 18:35:34,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 18:35:34,496 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 18:35:34,497 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 18:35:34,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 18:35:34,497 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 18:35:34,497 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 18:35:34,497 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 18:35:34,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 18:35:34,794 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 18:35:34,798 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 18:35:34,799 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 18:35:34,800 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 18:35:34,800 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i [2020-10-15 18:35:34,862 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe7956f8c/7a831e8ad2e34b5cae838e18b1e99d29/FLAG47f40c9d7 [2020-10-15 18:35:35,380 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 18:35:35,380 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i [2020-10-15 18:35:35,401 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe7956f8c/7a831e8ad2e34b5cae838e18b1e99d29/FLAG47f40c9d7 [2020-10-15 18:35:35,643 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe7956f8c/7a831e8ad2e34b5cae838e18b1e99d29 [2020-10-15 18:35:35,652 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 18:35:35,654 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 18:35:35,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 18:35:35,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 18:35:35,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 18:35:35,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:35:35" (1/1) ... [2020-10-15 18:35:35,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@647a3d93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:35, skipping insertion in model container [2020-10-15 18:35:35,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:35:35" (1/1) ... [2020-10-15 18:35:35,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 18:35:35,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 18:35:36,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:35:36,249 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 18:35:36,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:35:36,365 INFO L208 MainTranslator]: Completed translation [2020-10-15 18:35:36,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:36 WrapperNode [2020-10-15 18:35:36,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 18:35:36,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 18:35:36,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 18:35:36,367 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 18:35:36,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:36" (1/1) ... [2020-10-15 18:35:36,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:36" (1/1) ... [2020-10-15 18:35:36,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 18:35:36,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 18:35:36,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 18:35:36,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 18:35:36,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:36" (1/1) ... [2020-10-15 18:35:36,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:36" (1/1) ... [2020-10-15 18:35:36,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:36" (1/1) ... [2020-10-15 18:35:36,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:36" (1/1) ... [2020-10-15 18:35:36,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:36" (1/1) ... [2020-10-15 18:35:36,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:36" (1/1) ... [2020-10-15 18:35:36,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:36" (1/1) ... [2020-10-15 18:35:36,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 18:35:36,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 18:35:36,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 18:35:36,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 18:35:36,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:35:36,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 18:35:36,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 18:35:36,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 18:35:36,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 18:35:36,512 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 18:35:36,512 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 18:35:36,512 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 18:35:36,512 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 18:35:36,512 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 18:35:36,513 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 18:35:36,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 18:35:36,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 18:35:36,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 18:35:36,521 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 18:35:36,843 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 18:35:36,843 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 18:35:36,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:35:36 BoogieIcfgContainer [2020-10-15 18:35:36,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 18:35:36,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 18:35:36,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 18:35:36,850 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 18:35:36,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:35:35" (1/3) ... [2020-10-15 18:35:36,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf97f1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:35:36, skipping insertion in model container [2020-10-15 18:35:36,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:36" (2/3) ... [2020-10-15 18:35:36,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf97f1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:35:36, skipping insertion in model container [2020-10-15 18:35:36,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:35:36" (3/3) ... [2020-10-15 18:35:36,854 INFO L111 eAbstractionObserver]: Analyzing ICFG safe020_pso.opt.i [2020-10-15 18:35:36,866 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 18:35:36,866 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 18:35:36,874 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 18:35:36,875 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 18:35:36,907 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,908 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,908 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,911 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,912 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,913 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,914 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,914 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,914 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,914 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,915 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,915 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,915 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,916 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,916 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,916 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,920 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,921 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,921 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,921 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,927 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,928 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,928 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,928 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,931 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,931 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,931 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,932 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:36,951 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 18:35:36,976 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:35:36,977 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:35:36,977 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:35:36,977 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:35:36,977 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:35:36,977 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:35:36,977 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:35:36,978 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:35:36,990 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:35:36,993 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-15 18:35:36,996 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-15 18:35:36,998 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-15 18:35:37,044 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-15 18:35:37,045 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 18:35:37,050 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-15 18:35:37,053 INFO L117 LiptonReduction]: Number of co-enabled transitions 1178 [2020-10-15 18:35:38,482 INFO L132 LiptonReduction]: Checked pairs total: 2372 [2020-10-15 18:35:38,482 INFO L134 LiptonReduction]: Total number of compositions: 57 [2020-10-15 18:35:38,489 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-15 18:35:38,514 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 274 states. [2020-10-15 18:35:38,516 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states. [2020-10-15 18:35:38,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 18:35:38,524 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:38,525 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:38,525 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:38,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:38,531 INFO L82 PathProgramCache]: Analyzing trace with hash 278619754, now seen corresponding path program 1 times [2020-10-15 18:35:38,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:38,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117891624] [2020-10-15 18:35:38,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:38,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:38,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117891624] [2020-10-15 18:35:38,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:38,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:35:38,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535724112] [2020-10-15 18:35:38,726 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-15 18:35:38,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:38,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-15 18:35:38,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 18:35:38,745 INFO L87 Difference]: Start difference. First operand 274 states. Second operand 2 states. [2020-10-15 18:35:38,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:38,775 INFO L93 Difference]: Finished difference Result 274 states and 786 transitions. [2020-10-15 18:35:38,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-15 18:35:38,776 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-15 18:35:38,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:38,792 INFO L225 Difference]: With dead ends: 274 [2020-10-15 18:35:38,792 INFO L226 Difference]: Without dead ends: 226 [2020-10-15 18:35:38,795 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 18:35:38,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-15 18:35:38,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-15 18:35:38,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-15 18:35:38,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 634 transitions. [2020-10-15 18:35:38,861 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 634 transitions. Word has length 8 [2020-10-15 18:35:38,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:38,862 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 634 transitions. [2020-10-15 18:35:38,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-15 18:35:38,862 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 634 transitions. [2020-10-15 18:35:38,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 18:35:38,864 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:38,864 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:38,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 18:35:38,865 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:38,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:38,865 INFO L82 PathProgramCache]: Analyzing trace with hash 47263938, now seen corresponding path program 1 times [2020-10-15 18:35:38,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:38,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76275153] [2020-10-15 18:35:38,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:38,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:39,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:39,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76275153] [2020-10-15 18:35:39,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:39,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:35:39,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618015469] [2020-10-15 18:35:39,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:35:39,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:39,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:35:39,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:35:39,047 INFO L87 Difference]: Start difference. First operand 226 states and 634 transitions. Second operand 5 states. [2020-10-15 18:35:39,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:39,129 INFO L93 Difference]: Finished difference Result 250 states and 668 transitions. [2020-10-15 18:35:39,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 18:35:39,129 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-15 18:35:39,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:39,132 INFO L225 Difference]: With dead ends: 250 [2020-10-15 18:35:39,132 INFO L226 Difference]: Without dead ends: 202 [2020-10-15 18:35:39,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:35:39,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-15 18:35:39,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-15 18:35:39,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-15 18:35:39,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 552 transitions. [2020-10-15 18:35:39,155 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 552 transitions. Word has length 9 [2020-10-15 18:35:39,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:39,156 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 552 transitions. [2020-10-15 18:35:39,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:35:39,156 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 552 transitions. [2020-10-15 18:35:39,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 18:35:39,158 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:39,158 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:39,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 18:35:39,159 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:39,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:39,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1465143248, now seen corresponding path program 1 times [2020-10-15 18:35:39,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:39,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319867676] [2020-10-15 18:35:39,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:39,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:39,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:39,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319867676] [2020-10-15 18:35:39,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:39,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:35:39,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942521860] [2020-10-15 18:35:39,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 18:35:39,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:39,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 18:35:39,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:35:39,281 INFO L87 Difference]: Start difference. First operand 202 states and 552 transitions. Second operand 6 states. [2020-10-15 18:35:39,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:39,411 INFO L93 Difference]: Finished difference Result 262 states and 697 transitions. [2020-10-15 18:35:39,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 18:35:39,412 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-15 18:35:39,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:39,414 INFO L225 Difference]: With dead ends: 262 [2020-10-15 18:35:39,414 INFO L226 Difference]: Without dead ends: 154 [2020-10-15 18:35:39,414 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:35:39,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-15 18:35:39,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-10-15 18:35:39,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-15 18:35:39,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 392 transitions. [2020-10-15 18:35:39,426 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 392 transitions. Word has length 10 [2020-10-15 18:35:39,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:39,426 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 392 transitions. [2020-10-15 18:35:39,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 18:35:39,426 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 392 transitions. [2020-10-15 18:35:39,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 18:35:39,428 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:39,428 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:39,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 18:35:39,428 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:39,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:39,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1312152701, now seen corresponding path program 1 times [2020-10-15 18:35:39,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:39,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111171785] [2020-10-15 18:35:39,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:39,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:39,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111171785] [2020-10-15 18:35:39,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:39,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:35:39,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974480245] [2020-10-15 18:35:39,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:35:39,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:39,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:35:39,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:35:39,487 INFO L87 Difference]: Start difference. First operand 154 states and 392 transitions. Second operand 4 states. [2020-10-15 18:35:39,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:39,505 INFO L93 Difference]: Finished difference Result 174 states and 426 transitions. [2020-10-15 18:35:39,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:35:39,505 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-15 18:35:39,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:39,507 INFO L225 Difference]: With dead ends: 174 [2020-10-15 18:35:39,507 INFO L226 Difference]: Without dead ends: 150 [2020-10-15 18:35:39,507 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 18:35:39,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-15 18:35:39,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-10-15 18:35:39,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-15 18:35:39,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 378 transitions. [2020-10-15 18:35:39,515 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 378 transitions. Word has length 11 [2020-10-15 18:35:39,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:39,516 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 378 transitions. [2020-10-15 18:35:39,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:35:39,516 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 378 transitions. [2020-10-15 18:35:39,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 18:35:39,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:39,517 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:39,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 18:35:39,518 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:39,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:39,518 INFO L82 PathProgramCache]: Analyzing trace with hash 266026162, now seen corresponding path program 1 times [2020-10-15 18:35:39,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:39,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487933917] [2020-10-15 18:35:39,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:39,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:39,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487933917] [2020-10-15 18:35:39,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:39,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:35:39,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670232695] [2020-10-15 18:35:39,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:35:39,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:39,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:35:39,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:35:39,583 INFO L87 Difference]: Start difference. First operand 150 states and 378 transitions. Second operand 4 states. [2020-10-15 18:35:39,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:39,618 INFO L93 Difference]: Finished difference Result 164 states and 376 transitions. [2020-10-15 18:35:39,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:35:39,619 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 18:35:39,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:39,620 INFO L225 Difference]: With dead ends: 164 [2020-10-15 18:35:39,620 INFO L226 Difference]: Without dead ends: 128 [2020-10-15 18:35:39,621 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 18:35:39,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-15 18:35:39,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-10-15 18:35:39,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-15 18:35:39,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 293 transitions. [2020-10-15 18:35:39,626 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 293 transitions. Word has length 12 [2020-10-15 18:35:39,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:39,627 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 293 transitions. [2020-10-15 18:35:39,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:35:39,627 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 293 transitions. [2020-10-15 18:35:39,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:35:39,628 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:39,628 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:39,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 18:35:39,629 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:39,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:39,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1292455845, now seen corresponding path program 1 times [2020-10-15 18:35:39,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:39,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469755130] [2020-10-15 18:35:39,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:39,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:39,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469755130] [2020-10-15 18:35:39,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:39,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:35:39,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462681151] [2020-10-15 18:35:39,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:35:39,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:39,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:35:39,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:35:39,706 INFO L87 Difference]: Start difference. First operand 128 states and 293 transitions. Second operand 5 states. [2020-10-15 18:35:39,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:39,755 INFO L93 Difference]: Finished difference Result 116 states and 240 transitions. [2020-10-15 18:35:39,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:35:39,755 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 18:35:39,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:39,756 INFO L225 Difference]: With dead ends: 116 [2020-10-15 18:35:39,756 INFO L226 Difference]: Without dead ends: 92 [2020-10-15 18:35:39,757 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 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 18:35:39,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-15 18:35:39,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-10-15 18:35:39,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-15 18:35:39,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 186 transitions. [2020-10-15 18:35:39,761 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 186 transitions. Word has length 13 [2020-10-15 18:35:39,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:39,761 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 186 transitions. [2020-10-15 18:35:39,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:35:39,761 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 186 transitions. [2020-10-15 18:35:39,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 18:35:39,762 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:39,762 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:39,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 18:35:39,763 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:39,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:39,763 INFO L82 PathProgramCache]: Analyzing trace with hash -228576461, now seen corresponding path program 1 times [2020-10-15 18:35:39,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:39,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602048941] [2020-10-15 18:35:39,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:39,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:39,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602048941] [2020-10-15 18:35:39,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:39,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:35:39,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569212706] [2020-10-15 18:35:39,805 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:35:39,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:39,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:35:39,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:35:39,806 INFO L87 Difference]: Start difference. First operand 92 states and 186 transitions. Second operand 4 states. [2020-10-15 18:35:39,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:39,824 INFO L93 Difference]: Finished difference Result 120 states and 228 transitions. [2020-10-15 18:35:39,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:35:39,824 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-15 18:35:39,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:39,825 INFO L225 Difference]: With dead ends: 120 [2020-10-15 18:35:39,825 INFO L226 Difference]: Without dead ends: 94 [2020-10-15 18:35:39,826 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 18:35:39,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-10-15 18:35:39,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2020-10-15 18:35:39,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-15 18:35:39,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 175 transitions. [2020-10-15 18:35:39,830 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 175 transitions. Word has length 14 [2020-10-15 18:35:39,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:39,830 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 175 transitions. [2020-10-15 18:35:39,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:35:39,830 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 175 transitions. [2020-10-15 18:35:39,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:35:39,831 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:39,831 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:39,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 18:35:39,832 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:39,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:39,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1357686433, now seen corresponding path program 1 times [2020-10-15 18:35:39,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:39,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43685972] [2020-10-15 18:35:39,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:39,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:39,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:39,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43685972] [2020-10-15 18:35:39,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:39,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 18:35:39,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407797760] [2020-10-15 18:35:39,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 18:35:39,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:39,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 18:35:39,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:35:39,937 INFO L87 Difference]: Start difference. First operand 90 states and 175 transitions. Second operand 9 states. [2020-10-15 18:35:40,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:40,093 INFO L93 Difference]: Finished difference Result 119 states and 221 transitions. [2020-10-15 18:35:40,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 18:35:40,093 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-10-15 18:35:40,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:40,094 INFO L225 Difference]: With dead ends: 119 [2020-10-15 18:35:40,094 INFO L226 Difference]: Without dead ends: 76 [2020-10-15 18:35:40,095 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2020-10-15 18:35:40,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-15 18:35:40,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 72. [2020-10-15 18:35:40,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-15 18:35:40,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 123 transitions. [2020-10-15 18:35:40,099 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 123 transitions. Word has length 15 [2020-10-15 18:35:40,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:40,099 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 123 transitions. [2020-10-15 18:35:40,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 18:35:40,100 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 123 transitions. [2020-10-15 18:35:40,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:35:40,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:40,100 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:40,102 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 18:35:40,103 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:40,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:40,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1504039886, now seen corresponding path program 1 times [2020-10-15 18:35:40,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:40,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246896895] [2020-10-15 18:35:40,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:40,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:40,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:40,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246896895] [2020-10-15 18:35:40,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:40,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:35:40,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97276866] [2020-10-15 18:35:40,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 18:35:40,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:40,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 18:35:40,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:35:40,202 INFO L87 Difference]: Start difference. First operand 72 states and 123 transitions. Second operand 6 states. [2020-10-15 18:35:40,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:40,237 INFO L93 Difference]: Finished difference Result 65 states and 108 transitions. [2020-10-15 18:35:40,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 18:35:40,237 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-15 18:35:40,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:40,238 INFO L225 Difference]: With dead ends: 65 [2020-10-15 18:35:40,238 INFO L226 Difference]: Without dead ends: 28 [2020-10-15 18:35:40,238 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 18:35:40,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-15 18:35:40,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-15 18:35:40,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-15 18:35:40,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2020-10-15 18:35:40,240 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 15 [2020-10-15 18:35:40,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:40,240 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2020-10-15 18:35:40,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 18:35:40,241 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2020-10-15 18:35:40,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 18:35:40,241 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:40,241 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:40,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 18:35:40,242 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:40,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:40,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1777188338, now seen corresponding path program 1 times [2020-10-15 18:35:40,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:40,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047794922] [2020-10-15 18:35:40,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:40,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:40,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047794922] [2020-10-15 18:35:40,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:40,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 18:35:40,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690163285] [2020-10-15 18:35:40,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 18:35:40,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:40,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 18:35:40,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 18:35:40,375 INFO L87 Difference]: Start difference. First operand 28 states and 38 transitions. Second operand 10 states. [2020-10-15 18:35:40,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:40,447 INFO L93 Difference]: Finished difference Result 27 states and 37 transitions. [2020-10-15 18:35:40,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 18:35:40,447 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-10-15 18:35:40,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:40,448 INFO L225 Difference]: With dead ends: 27 [2020-10-15 18:35:40,448 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 18:35:40,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-15 18:35:40,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 18:35:40,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 18:35:40,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 18:35:40,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 18:35:40,449 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-15 18:35:40,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:40,449 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 18:35:40,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 18:35:40,450 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 18:35:40,450 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 18:35:40,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 18:35:40,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:35:40 BasicIcfg [2020-10-15 18:35:40,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:35:40,457 INFO L168 Benchmark]: Toolchain (without parser) took 4802.11 ms. Allocated memory was 250.1 MB in the beginning and 370.1 MB in the end (delta: 120.1 MB). Free memory was 205.4 MB in the beginning and 187.8 MB in the end (delta: 17.7 MB). Peak memory consumption was 137.7 MB. Max. memory is 14.2 GB. [2020-10-15 18:35:40,457 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 18:35:40,458 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.69 ms. Allocated memory was 250.1 MB in the beginning and 311.4 MB in the end (delta: 61.3 MB). Free memory was 205.4 MB in the beginning and 264.7 MB in the end (delta: -59.3 MB). Peak memory consumption was 30.1 MB. Max. memory is 14.2 GB. [2020-10-15 18:35:40,459 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.47 ms. Allocated memory is still 311.4 MB. Free memory was 264.7 MB in the beginning and 262.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:35:40,460 INFO L168 Benchmark]: Boogie Preprocessor took 26.95 ms. Allocated memory is still 311.4 MB. Free memory was 262.2 MB in the beginning and 259.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:35:40,460 INFO L168 Benchmark]: RCFGBuilder took 396.78 ms. Allocated memory is still 311.4 MB. Free memory was 259.7 MB in the beginning and 237.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. [2020-10-15 18:35:40,461 INFO L168 Benchmark]: TraceAbstraction took 3607.21 ms. Allocated memory was 311.4 MB in the beginning and 370.1 MB in the end (delta: 58.7 MB). Free memory was 237.9 MB in the beginning and 187.8 MB in the end (delta: 50.1 MB). Peak memory consumption was 108.8 MB. Max. memory is 14.2 GB. [2020-10-15 18:35:40,465 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 709.69 ms. Allocated memory was 250.1 MB in the beginning and 311.4 MB in the end (delta: 61.3 MB). Free memory was 205.4 MB in the beginning and 264.7 MB in the end (delta: -59.3 MB). Peak memory consumption was 30.1 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 54.47 ms. Allocated memory is still 311.4 MB. Free memory was 264.7 MB in the beginning and 262.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.95 ms. Allocated memory is still 311.4 MB. Free memory was 262.2 MB in the beginning and 259.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 396.78 ms. Allocated memory is still 311.4 MB. Free memory was 259.7 MB in the beginning and 237.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3607.21 ms. Allocated memory was 311.4 MB in the beginning and 370.1 MB in the end (delta: 58.7 MB). Free memory was 237.9 MB in the beginning and 187.8 MB in the end (delta: 50.1 MB). Peak memory consumption was 108.8 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 738 VarBasedMoverChecksPositive, 34 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 44 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 76 PlacesBefore, 31 PlacesAfterwards, 68 TransitionsBefore, 22 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 57 TotalNumberOfCompositions, 2372 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 4 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 186 SDtfs, 233 SDslu, 439 SDs, 0 SdLazy, 320 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred 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: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 6072 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...