/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/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 18:39:11,603 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 18:39:11,606 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 18:39:11,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 18:39:11,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 18:39:11,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 18:39:11,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 18:39:11,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 18:39:11,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 18:39:11,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 18:39:11,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 18:39:11,637 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 18:39:11,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 18:39:11,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 18:39:11,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 18:39:11,640 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 18:39:11,641 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 18:39:11,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 18:39:11,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 18:39:11,645 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 18:39:11,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 18:39:11,649 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 18:39:11,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 18:39:11,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 18:39:11,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 18:39:11,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 18:39:11,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 18:39:11,658 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 18:39:11,659 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 18:39:11,660 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 18:39:11,660 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 18:39:11,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 18:39:11,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 18:39:11,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 18:39:11,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 18:39:11,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 18:39:11,664 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 18:39:11,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 18:39:11,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 18:39:11,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 18:39:11,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 18:39:11,667 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-11 18:39:11,688 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 18:39:11,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 18:39:11,689 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 18:39:11,689 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 18:39:11,689 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 18:39:11,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 18:39:11,690 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 18:39:11,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 18:39:11,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 18:39:11,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 18:39:11,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 18:39:11,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 18:39:11,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 18:39:11,691 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 18:39:11,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 18:39:11,691 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 18:39:11,692 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 18:39:11,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 18:39:11,692 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 18:39:11,692 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 18:39:11,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 18:39:11,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 18:39:11,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 18:39:11,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 18:39:11,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 18:39:11,693 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 18:39:11,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 18:39:11,694 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 18:39:11,694 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 18:39:11,694 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 18:39:11,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 18:39:11,971 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 18:39:11,975 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 18:39:11,976 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 18:39:11,976 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 18:39:11,977 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i [2020-10-11 18:39:12,033 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6da59b59/9761be2af99d4d9db4f7e5eaeef2984e/FLAG1bc245c64 [2020-10-11 18:39:12,505 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 18:39:12,506 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i [2020-10-11 18:39:12,529 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6da59b59/9761be2af99d4d9db4f7e5eaeef2984e/FLAG1bc245c64 [2020-10-11 18:39:12,843 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6da59b59/9761be2af99d4d9db4f7e5eaeef2984e [2020-10-11 18:39:12,853 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 18:39:12,855 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 18:39:12,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 18:39:12,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 18:39:12,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 18:39:12,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:39:12" (1/1) ... [2020-10-11 18:39:12,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f47a83f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:39:12, skipping insertion in model container [2020-10-11 18:39:12,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:39:12" (1/1) ... [2020-10-11 18:39:12,871 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 18:39:12,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 18:39:13,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:39:13,382 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 18:39:13,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:39:13,548 INFO L208 MainTranslator]: Completed translation [2020-10-11 18:39:13,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:39:13 WrapperNode [2020-10-11 18:39:13,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 18:39:13,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 18:39:13,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 18:39:13,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 18:39:13,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:39:13" (1/1) ... [2020-10-11 18:39:13,577 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:39:13" (1/1) ... [2020-10-11 18:39:13,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 18:39:13,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 18:39:13,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 18:39:13,597 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 18:39:13,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:39:13" (1/1) ... [2020-10-11 18:39:13,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:39:13" (1/1) ... [2020-10-11 18:39:13,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:39:13" (1/1) ... [2020-10-11 18:39:13,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:39:13" (1/1) ... [2020-10-11 18:39:13,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:39:13" (1/1) ... [2020-10-11 18:39:13,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:39:13" (1/1) ... [2020-10-11 18:39:13,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:39:13" (1/1) ... [2020-10-11 18:39:13,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 18:39:13,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 18:39:13,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 18:39:13,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 18:39:13,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:39:13" (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 [2020-10-11 18:39:13,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 18:39:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 18:39:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 18:39:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 18:39:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 18:39:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 18:39:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 18:39:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 18:39:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 18:39:13,690 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 18:39:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 18:39:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 18:39:13,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 18:39:13,691 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 18:39:14,046 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 18:39:14,047 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 18:39:14,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:39:14 BoogieIcfgContainer [2020-10-11 18:39:14,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 18:39:14,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 18:39:14,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 18:39:14,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 18:39:14,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 06:39:12" (1/3) ... [2020-10-11 18:39:14,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b947189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:39:14, skipping insertion in model container [2020-10-11 18:39:14,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:39:13" (2/3) ... [2020-10-11 18:39:14,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b947189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:39:14, skipping insertion in model container [2020-10-11 18:39:14,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:39:14" (3/3) ... [2020-10-11 18:39:14,057 INFO L111 eAbstractionObserver]: Analyzing ICFG safe020_pso.opt.i [2020-10-11 18:39:14,067 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 18:39:14,075 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 18:39:14,076 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 18:39:14,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,103 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,103 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,103 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,103 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,104 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,104 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,105 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,106 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,106 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,106 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,106 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,106 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,110 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,110 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,110 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,111 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,115 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,116 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,116 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,116 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,118 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,119 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,119 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,120 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:39:14,137 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-11 18:39:14,157 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 18:39:14,157 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 18:39:14,157 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 18:39:14,157 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 18:39:14,158 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 18:39:14,158 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 18:39:14,158 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 18:39:14,158 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 18:39:14,171 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-11 18:39:14,216 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-11 18:39:14,217 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:39:14,221 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. [2020-10-11 18:39:14,222 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 68 transitions, 151 flow [2020-10-11 18:39:14,227 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 54 transitions, 117 flow [2020-10-11 18:39:14,251 INFO L129 PetriNetUnfolder]: 1/53 cut-off events. [2020-10-11 18:39:14,251 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:39:14,252 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:39:14,253 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:39:14,253 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:39:14,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:39:14,260 INFO L82 PathProgramCache]: Analyzing trace with hash -42514807, now seen corresponding path program 1 times [2020-10-11 18:39:14,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:39:14,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692737772] [2020-10-11 18:39:14,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:39:14,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:39:14,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:39:14,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692737772] [2020-10-11 18:39:14,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:39:14,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:39:14,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21451570] [2020-10-11 18:39:14,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:39:14,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:39:14,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:39:14,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:39:14,905 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 68 [2020-10-11 18:39:14,908 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 54 transitions, 117 flow. Second operand 6 states. [2020-10-11 18:39:14,909 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:39:14,909 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 68 [2020-10-11 18:39:14,911 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:39:15,130 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-10-11 18:39:15,130 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:39:15,132 INFO L80 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 118 event pairs, 0 based on Foata normal form. 4/79 useless extension candidates. Maximal degree in co-relation 82. Up to 7 conditions per place. [2020-10-11 18:39:15,134 INFO L132 encePairwiseOnDemand]: 61/68 looper letters, 6 selfloop transitions, 2 changer transitions 11/63 dead transitions. [2020-10-11 18:39:15,134 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 63 transitions, 171 flow [2020-10-11 18:39:15,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:39:15,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:39:15,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 544 transitions. [2020-10-11 18:39:15,160 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2020-10-11 18:39:15,160 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 544 transitions. [2020-10-11 18:39:15,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 544 transitions. [2020-10-11 18:39:15,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:39:15,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 544 transitions. [2020-10-11 18:39:15,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:39:15,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:39:15,188 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:39:15,190 INFO L185 Difference]: Start difference. First operand has 63 places, 54 transitions, 117 flow. Second operand 9 states and 544 transitions. [2020-10-11 18:39:15,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 63 transitions, 171 flow [2020-10-11 18:39:15,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 63 transitions, 168 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-11 18:39:15,199 INFO L241 Difference]: Finished difference. Result has 75 places, 52 transitions, 130 flow [2020-10-11 18:39:15,202 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=130, PETRI_PLACES=75, PETRI_TRANSITIONS=52} [2020-10-11 18:39:15,202 INFO L341 CegarLoopForPetriNet]: 63 programPoint places, 12 predicate places. [2020-10-11 18:39:15,203 INFO L481 AbstractCegarLoop]: Abstraction has has 75 places, 52 transitions, 130 flow [2020-10-11 18:39:15,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:39:15,203 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:39:15,203 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:39:15,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 18:39:15,204 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:39:15,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:39:15,204 INFO L82 PathProgramCache]: Analyzing trace with hash -2009774998, now seen corresponding path program 1 times [2020-10-11 18:39:15,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:39:15,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769165840] [2020-10-11 18:39:15,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:39:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:39:15,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:39:15,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769165840] [2020-10-11 18:39:15,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:39:15,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:39:15,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956752570] [2020-10-11 18:39:15,350 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:39:15,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:39:15,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:39:15,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:39:15,625 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 68 [2020-10-11 18:39:15,625 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 52 transitions, 130 flow. Second operand 7 states. [2020-10-11 18:39:15,626 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:39:15,626 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 68 [2020-10-11 18:39:15,626 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:39:15,781 INFO L129 PetriNetUnfolder]: 4/73 cut-off events. [2020-10-11 18:39:15,782 INFO L130 PetriNetUnfolder]: For 17/24 co-relation queries the response was YES. [2020-10-11 18:39:15,782 INFO L80 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 73 events. 4/73 cut-off events. For 17/24 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 126 event pairs, 0 based on Foata normal form. 2/75 useless extension candidates. Maximal degree in co-relation 120. Up to 7 conditions per place. [2020-10-11 18:39:15,783 INFO L132 encePairwiseOnDemand]: 60/68 looper letters, 6 selfloop transitions, 4 changer transitions 12/64 dead transitions. [2020-10-11 18:39:15,783 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 64 transitions, 221 flow [2020-10-11 18:39:15,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 18:39:15,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-11 18:39:15,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 584 transitions. [2020-10-11 18:39:15,786 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8588235294117647 [2020-10-11 18:39:15,787 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 584 transitions. [2020-10-11 18:39:15,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 584 transitions. [2020-10-11 18:39:15,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:39:15,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 584 transitions. [2020-10-11 18:39:15,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-11 18:39:15,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-11 18:39:15,791 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-11 18:39:15,791 INFO L185 Difference]: Start difference. First operand has 75 places, 52 transitions, 130 flow. Second operand 10 states and 584 transitions. [2020-10-11 18:39:15,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 64 transitions, 221 flow [2020-10-11 18:39:15,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 64 transitions, 187 flow, removed 14 selfloop flow, removed 8 redundant places. [2020-10-11 18:39:15,796 INFO L241 Difference]: Finished difference. Result has 77 places, 52 transitions, 144 flow [2020-10-11 18:39:15,796 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=144, PETRI_PLACES=77, PETRI_TRANSITIONS=52} [2020-10-11 18:39:15,797 INFO L341 CegarLoopForPetriNet]: 63 programPoint places, 14 predicate places. [2020-10-11 18:39:15,797 INFO L481 AbstractCegarLoop]: Abstraction has has 77 places, 52 transitions, 144 flow [2020-10-11 18:39:15,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:39:15,797 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:39:15,797 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:39:15,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 18:39:15,798 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:39:15,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:39:15,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1194350071, now seen corresponding path program 1 times [2020-10-11 18:39:15,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:39:15,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170368300] [2020-10-11 18:39:15,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:39:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:39:15,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:39:15,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170368300] [2020-10-11 18:39:15,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:39:15,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:39:15,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773031500] [2020-10-11 18:39:15,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:39:15,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:39:15,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:39:15,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:39:16,067 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 68 [2020-10-11 18:39:16,068 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 52 transitions, 144 flow. Second operand 6 states. [2020-10-11 18:39:16,068 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:39:16,068 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 68 [2020-10-11 18:39:16,069 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:39:16,226 INFO L129 PetriNetUnfolder]: 24/130 cut-off events. [2020-10-11 18:39:16,227 INFO L130 PetriNetUnfolder]: For 62/65 co-relation queries the response was YES. [2020-10-11 18:39:16,228 INFO L80 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 130 events. 24/130 cut-off events. For 62/65 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 413 event pairs, 5 based on Foata normal form. 4/133 useless extension candidates. Maximal degree in co-relation 231. Up to 31 conditions per place. [2020-10-11 18:39:16,229 INFO L132 encePairwiseOnDemand]: 61/68 looper letters, 8 selfloop transitions, 3 changer transitions 19/73 dead transitions. [2020-10-11 18:39:16,229 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 73 transitions, 268 flow [2020-10-11 18:39:16,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:39:16,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:39:16,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 545 transitions. [2020-10-11 18:39:16,233 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8905228758169934 [2020-10-11 18:39:16,233 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 545 transitions. [2020-10-11 18:39:16,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 545 transitions. [2020-10-11 18:39:16,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:39:16,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 545 transitions. [2020-10-11 18:39:16,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:39:16,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:39:16,237 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:39:16,238 INFO L185 Difference]: Start difference. First operand has 77 places, 52 transitions, 144 flow. Second operand 9 states and 545 transitions. [2020-10-11 18:39:16,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 73 transitions, 268 flow [2020-10-11 18:39:16,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 73 transitions, 222 flow, removed 18 selfloop flow, removed 10 redundant places. [2020-10-11 18:39:16,242 INFO L241 Difference]: Finished difference. Result has 76 places, 54 transitions, 161 flow [2020-10-11 18:39:16,243 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=161, PETRI_PLACES=76, PETRI_TRANSITIONS=54} [2020-10-11 18:39:16,243 INFO L341 CegarLoopForPetriNet]: 63 programPoint places, 13 predicate places. [2020-10-11 18:39:16,243 INFO L481 AbstractCegarLoop]: Abstraction has has 76 places, 54 transitions, 161 flow [2020-10-11 18:39:16,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:39:16,243 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:39:16,244 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:39:16,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 18:39:16,244 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:39:16,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:39:16,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1079824668, now seen corresponding path program 1 times [2020-10-11 18:39:16,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:39:16,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220649240] [2020-10-11 18:39:16,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:39:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:39:16,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:39:16,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220649240] [2020-10-11 18:39:16,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:39:16,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:39:16,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426381357] [2020-10-11 18:39:16,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:39:16,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:39:16,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:39:16,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:39:16,472 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 68 [2020-10-11 18:39:16,472 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 54 transitions, 161 flow. Second operand 6 states. [2020-10-11 18:39:16,473 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:39:16,473 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 68 [2020-10-11 18:39:16,473 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:39:16,604 INFO L129 PetriNetUnfolder]: 7/118 cut-off events. [2020-10-11 18:39:16,604 INFO L130 PetriNetUnfolder]: For 112/118 co-relation queries the response was YES. [2020-10-11 18:39:16,605 INFO L80 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 118 events. 7/118 cut-off events. For 112/118 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 384 event pairs, 0 based on Foata normal form. 3/121 useless extension candidates. Maximal degree in co-relation 233. Up to 18 conditions per place. [2020-10-11 18:39:16,608 INFO L132 encePairwiseOnDemand]: 62/68 looper letters, 12 selfloop transitions, 3 changer transitions 10/68 dead transitions. [2020-10-11 18:39:16,608 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 68 transitions, 295 flow [2020-10-11 18:39:16,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:39:16,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:39:16,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 539 transitions. [2020-10-11 18:39:16,611 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.880718954248366 [2020-10-11 18:39:16,611 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 539 transitions. [2020-10-11 18:39:16,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 539 transitions. [2020-10-11 18:39:16,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:39:16,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 539 transitions. [2020-10-11 18:39:16,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:39:16,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:39:16,615 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:39:16,615 INFO L185 Difference]: Start difference. First operand has 76 places, 54 transitions, 161 flow. Second operand 9 states and 539 transitions. [2020-10-11 18:39:16,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 68 transitions, 295 flow [2020-10-11 18:39:16,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 68 transitions, 264 flow, removed 14 selfloop flow, removed 4 redundant places. [2020-10-11 18:39:16,625 INFO L241 Difference]: Finished difference. Result has 81 places, 54 transitions, 173 flow [2020-10-11 18:39:16,625 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=173, PETRI_PLACES=81, PETRI_TRANSITIONS=54} [2020-10-11 18:39:16,633 INFO L341 CegarLoopForPetriNet]: 63 programPoint places, 18 predicate places. [2020-10-11 18:39:16,633 INFO L481 AbstractCegarLoop]: Abstraction has has 81 places, 54 transitions, 173 flow [2020-10-11 18:39:16,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:39:16,634 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:39:16,634 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:39:16,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 18:39:16,634 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:39:16,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:39:16,635 INFO L82 PathProgramCache]: Analyzing trace with hash -423378708, now seen corresponding path program 1 times [2020-10-11 18:39:16,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:39:16,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950591012] [2020-10-11 18:39:16,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:39:16,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:39:16,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:39:16,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950591012] [2020-10-11 18:39:16,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:39:16,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:39:16,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383685643] [2020-10-11 18:39:16,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:39:16,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:39:16,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:39:16,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:39:16,854 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 68 [2020-10-11 18:39:16,855 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 54 transitions, 173 flow. Second operand 6 states. [2020-10-11 18:39:16,855 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:39:16,855 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 68 [2020-10-11 18:39:16,855 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:39:17,043 INFO L129 PetriNetUnfolder]: 190/522 cut-off events. [2020-10-11 18:39:17,043 INFO L130 PetriNetUnfolder]: For 333/343 co-relation queries the response was YES. [2020-10-11 18:39:17,048 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1087 conditions, 522 events. 190/522 cut-off events. For 333/343 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 3243 event pairs, 29 based on Foata normal form. 14/505 useless extension candidates. Maximal degree in co-relation 1051. Up to 161 conditions per place. [2020-10-11 18:39:17,050 INFO L132 encePairwiseOnDemand]: 59/68 looper letters, 10 selfloop transitions, 6 changer transitions 19/79 dead transitions. [2020-10-11 18:39:17,050 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 79 transitions, 293 flow [2020-10-11 18:39:17,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:39:17,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:39:17,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 532 transitions. [2020-10-11 18:39:17,053 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.869281045751634 [2020-10-11 18:39:17,053 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 532 transitions. [2020-10-11 18:39:17,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 532 transitions. [2020-10-11 18:39:17,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:39:17,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 532 transitions. [2020-10-11 18:39:17,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:39:17,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:39:17,056 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:39:17,057 INFO L185 Difference]: Start difference. First operand has 81 places, 54 transitions, 173 flow. Second operand 9 states and 532 transitions. [2020-10-11 18:39:17,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 79 transitions, 293 flow [2020-10-11 18:39:17,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 79 transitions, 272 flow, removed 9 selfloop flow, removed 7 redundant places. [2020-10-11 18:39:17,062 INFO L241 Difference]: Finished difference. Result has 82 places, 57 transitions, 208 flow [2020-10-11 18:39:17,062 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=208, PETRI_PLACES=82, PETRI_TRANSITIONS=57} [2020-10-11 18:39:17,062 INFO L341 CegarLoopForPetriNet]: 63 programPoint places, 19 predicate places. [2020-10-11 18:39:17,063 INFO L481 AbstractCegarLoop]: Abstraction has has 82 places, 57 transitions, 208 flow [2020-10-11 18:39:17,063 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:39:17,063 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:39:17,063 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:39:17,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 18:39:17,063 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:39:17,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:39:17,064 INFO L82 PathProgramCache]: Analyzing trace with hash -94062654, now seen corresponding path program 1 times [2020-10-11 18:39:17,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:39:17,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101425032] [2020-10-11 18:39:17,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:39:17,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:39:17,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:39:17,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101425032] [2020-10-11 18:39:17,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:39:17,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:39:17,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195339186] [2020-10-11 18:39:17,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:39:17,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:39:17,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:39:17,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:39:17,274 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 68 [2020-10-11 18:39:17,274 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 57 transitions, 208 flow. Second operand 7 states. [2020-10-11 18:39:17,274 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:39:17,275 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 68 [2020-10-11 18:39:17,275 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:39:17,466 INFO L129 PetriNetUnfolder]: 107/344 cut-off events. [2020-10-11 18:39:17,467 INFO L130 PetriNetUnfolder]: For 599/712 co-relation queries the response was YES. [2020-10-11 18:39:17,468 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1144 conditions, 344 events. 107/344 cut-off events. For 599/712 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1874 event pairs, 3 based on Foata normal form. 26/358 useless extension candidates. Maximal degree in co-relation 1106. Up to 148 conditions per place. [2020-10-11 18:39:17,470 INFO L132 encePairwiseOnDemand]: 59/68 looper letters, 10 selfloop transitions, 9 changer transitions 19/82 dead transitions. [2020-10-11 18:39:17,470 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 82 transitions, 461 flow [2020-10-11 18:39:17,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 18:39:17,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-11 18:39:17,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 590 transitions. [2020-10-11 18:39:17,473 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8676470588235294 [2020-10-11 18:39:17,473 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 590 transitions. [2020-10-11 18:39:17,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 590 transitions. [2020-10-11 18:39:17,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:39:17,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 590 transitions. [2020-10-11 18:39:17,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-11 18:39:17,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-11 18:39:17,477 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-11 18:39:17,478 INFO L185 Difference]: Start difference. First operand has 82 places, 57 transitions, 208 flow. Second operand 10 states and 590 transitions. [2020-10-11 18:39:17,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 82 transitions, 461 flow [2020-10-11 18:39:17,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 82 transitions, 437 flow, removed 7 selfloop flow, removed 5 redundant places. [2020-10-11 18:39:17,483 INFO L241 Difference]: Finished difference. Result has 88 places, 60 transitions, 276 flow [2020-10-11 18:39:17,484 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=276, PETRI_PLACES=88, PETRI_TRANSITIONS=60} [2020-10-11 18:39:17,484 INFO L341 CegarLoopForPetriNet]: 63 programPoint places, 25 predicate places. [2020-10-11 18:39:17,484 INFO L481 AbstractCegarLoop]: Abstraction has has 88 places, 60 transitions, 276 flow [2020-10-11 18:39:17,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:39:17,485 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:39:17,485 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:39:17,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 18:39:17,486 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:39:17,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:39:17,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1501162851, now seen corresponding path program 1 times [2020-10-11 18:39:17,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:39:17,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088954057] [2020-10-11 18:39:17,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:39:17,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:39:17,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:39:17,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088954057] [2020-10-11 18:39:17,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:39:17,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:39:17,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279940232] [2020-10-11 18:39:17,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:39:17,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:39:17,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:39:17,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:39:17,864 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 68 [2020-10-11 18:39:17,864 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 60 transitions, 276 flow. Second operand 7 states. [2020-10-11 18:39:17,865 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:39:17,865 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 68 [2020-10-11 18:39:17,865 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:39:18,002 INFO L129 PetriNetUnfolder]: 51/278 cut-off events. [2020-10-11 18:39:18,003 INFO L130 PetriNetUnfolder]: For 946/1021 co-relation queries the response was YES. [2020-10-11 18:39:18,005 INFO L80 FinitePrefix]: Finished finitePrefix Result has 957 conditions, 278 events. 51/278 cut-off events. For 946/1021 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1381 event pairs, 14 based on Foata normal form. 9/280 useless extension candidates. Maximal degree in co-relation 914. Up to 82 conditions per place. [2020-10-11 18:39:18,006 INFO L132 encePairwiseOnDemand]: 62/68 looper letters, 13 selfloop transitions, 2 changer transitions 5/69 dead transitions. [2020-10-11 18:39:18,006 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 69 transitions, 348 flow [2020-10-11 18:39:18,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 18:39:18,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-11 18:39:18,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 412 transitions. [2020-10-11 18:39:18,009 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.865546218487395 [2020-10-11 18:39:18,009 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 412 transitions. [2020-10-11 18:39:18,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 412 transitions. [2020-10-11 18:39:18,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:39:18,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 412 transitions. [2020-10-11 18:39:18,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-11 18:39:18,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-11 18:39:18,014 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-11 18:39:18,014 INFO L185 Difference]: Start difference. First operand has 88 places, 60 transitions, 276 flow. Second operand 7 states and 412 transitions. [2020-10-11 18:39:18,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 69 transitions, 348 flow [2020-10-11 18:39:18,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 69 transitions, 292 flow, removed 20 selfloop flow, removed 9 redundant places. [2020-10-11 18:39:18,022 INFO L241 Difference]: Finished difference. Result has 86 places, 60 transitions, 229 flow [2020-10-11 18:39:18,022 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=229, PETRI_PLACES=86, PETRI_TRANSITIONS=60} [2020-10-11 18:39:18,023 INFO L341 CegarLoopForPetriNet]: 63 programPoint places, 23 predicate places. [2020-10-11 18:39:18,023 INFO L481 AbstractCegarLoop]: Abstraction has has 86 places, 60 transitions, 229 flow [2020-10-11 18:39:18,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:39:18,023 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:39:18,024 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:39:18,024 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 18:39:18,024 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:39:18,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:39:18,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1062166769, now seen corresponding path program 2 times [2020-10-11 18:39:18,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:39:18,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385378201] [2020-10-11 18:39:18,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:39:18,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:39:18,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:39:18,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385378201] [2020-10-11 18:39:18,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:39:18,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-11 18:39:18,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814674608] [2020-10-11 18:39:18,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-11 18:39:18,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:39:18,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-11 18:39:18,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-11 18:39:18,339 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 68 [2020-10-11 18:39:18,339 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 60 transitions, 229 flow. Second operand 8 states. [2020-10-11 18:39:18,340 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:39:18,340 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 68 [2020-10-11 18:39:18,340 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:39:18,502 INFO L129 PetriNetUnfolder]: 33/201 cut-off events. [2020-10-11 18:39:18,502 INFO L130 PetriNetUnfolder]: For 349/419 co-relation queries the response was YES. [2020-10-11 18:39:18,503 INFO L80 FinitePrefix]: Finished finitePrefix Result has 591 conditions, 201 events. 33/201 cut-off events. For 349/419 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1037 event pairs, 0 based on Foata normal form. 40/236 useless extension candidates. Maximal degree in co-relation 573. Up to 64 conditions per place. [2020-10-11 18:39:18,504 INFO L132 encePairwiseOnDemand]: 59/68 looper letters, 0 selfloop transitions, 0 changer transitions 65/65 dead transitions. [2020-10-11 18:39:18,504 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 65 transitions, 316 flow [2020-10-11 18:39:18,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-11 18:39:18,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-11 18:39:18,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 633 transitions. [2020-10-11 18:39:18,507 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8462566844919787 [2020-10-11 18:39:18,507 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 633 transitions. [2020-10-11 18:39:18,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 633 transitions. [2020-10-11 18:39:18,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:39:18,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 633 transitions. [2020-10-11 18:39:18,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 12 states. [2020-10-11 18:39:18,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 12 states. [2020-10-11 18:39:18,511 INFO L81 ComplementDD]: Finished complementDD. Result 12 states. [2020-10-11 18:39:18,512 INFO L185 Difference]: Start difference. First operand has 86 places, 60 transitions, 229 flow. Second operand 11 states and 633 transitions. [2020-10-11 18:39:18,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 65 transitions, 316 flow [2020-10-11 18:39:18,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 65 transitions, 291 flow, removed 9 selfloop flow, removed 7 redundant places. [2020-10-11 18:39:18,514 INFO L241 Difference]: Finished difference. Result has 80 places, 0 transitions, 0 flow [2020-10-11 18:39:18,515 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=80, PETRI_TRANSITIONS=0} [2020-10-11 18:39:18,515 INFO L341 CegarLoopForPetriNet]: 63 programPoint places, 17 predicate places. [2020-10-11 18:39:18,515 INFO L481 AbstractCegarLoop]: Abstraction has has 80 places, 0 transitions, 0 flow [2020-10-11 18:39:18,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-11 18:39:18,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 18:39:18,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 06:39:18 BasicIcfg [2020-10-11 18:39:18,521 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 18:39:18,525 INFO L168 Benchmark]: Toolchain (without parser) took 5668.97 ms. Allocated memory was 250.6 MB in the beginning and 426.2 MB in the end (delta: 175.6 MB). Free memory was 205.6 MB in the beginning and 211.7 MB in the end (delta: -6.1 MB). Peak memory consumption was 169.6 MB. Max. memory is 14.2 GB. [2020-10-11 18:39:18,525 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 250.6 MB. Free memory is still 227.0 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 18:39:18,531 INFO L168 Benchmark]: CACSL2BoogieTranslator took 693.41 ms. Allocated memory was 250.6 MB in the beginning and 311.4 MB in the end (delta: 60.8 MB). Free memory was 205.6 MB in the beginning and 264.8 MB in the end (delta: -59.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. [2020-10-11 18:39:18,531 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.73 ms. Allocated memory is still 311.4 MB. Free memory was 264.8 MB in the beginning and 262.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:39:18,532 INFO L168 Benchmark]: Boogie Preprocessor took 23.65 ms. Allocated memory is still 311.4 MB. Free memory was 262.3 MB in the beginning and 259.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:39:18,533 INFO L168 Benchmark]: RCFGBuilder took 428.23 ms. Allocated memory is still 311.4 MB. Free memory was 259.8 MB in the beginning and 237.9 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. [2020-10-11 18:39:18,534 INFO L168 Benchmark]: TraceAbstraction took 4471.38 ms. Allocated memory was 311.4 MB in the beginning and 426.2 MB in the end (delta: 114.8 MB). Free memory was 237.9 MB in the beginning and 211.7 MB in the end (delta: 26.2 MB). Peak memory consumption was 141.0 MB. Max. memory is 14.2 GB. [2020-10-11 18:39:18,546 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 250.6 MB. Free memory is still 227.0 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 693.41 ms. Allocated memory was 250.6 MB in the beginning and 311.4 MB in the end (delta: 60.8 MB). Free memory was 205.6 MB in the beginning and 264.8 MB in the end (delta: -59.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 46.73 ms. Allocated memory is still 311.4 MB. Free memory was 264.8 MB in the beginning and 262.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 23.65 ms. Allocated memory is still 311.4 MB. Free memory was 262.3 MB in the beginning and 259.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 428.23 ms. Allocated memory is still 311.4 MB. Free memory was 259.8 MB in the beginning and 237.9 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 4471.38 ms. Allocated memory was 311.4 MB in the beginning and 426.2 MB in the end (delta: 114.8 MB). Free memory was 237.9 MB in the beginning and 211.7 MB in the end (delta: 26.2 MB). Peak memory consumption was 141.0 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4.3s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 165 SDtfs, 217 SDslu, 528 SDs, 0 SdLazy, 562 SolverSat, 69 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=276occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 322 NumberOfCodeBlocks, 322 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 314 ConstructedInterpolants, 0 QuantifiedInterpolants, 35710 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...