/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:05:56,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:05:56,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:05:56,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:05:56,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:05:56,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:05:56,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:05:56,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:05:56,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:05:56,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:05:56,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:05:56,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:05:56,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:05:56,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:05:56,422 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:05:56,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:05:56,424 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:05:56,425 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:05:56,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:05:56,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:05:56,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:05:56,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:05:56,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:05:56,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:05:56,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 17:05:56,462 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:05:56,463 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:05:56,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:05:56,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:05:56,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:05:56,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:05:56,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:05:56,467 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:05:56,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:05:56,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:05:56,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:05:56,470 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-11-09 17:05:56,502 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:05:56,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:05:56,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:05:56,504 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:05:56,505 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:05:56,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:05:56,505 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:05:56,505 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:05:56,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:05:56,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:05:56,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:05:56,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:05:56,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:05:56,507 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:05:56,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:05:56,507 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:05:56,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:05:56,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:05:56,508 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:05:56,508 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:05:56,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:05:56,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:05:56,509 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:05:56,509 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:05:56,509 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:05:56,509 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:05:56,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:05:56,510 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:05:56,510 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:05:56,510 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:05:56,510 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:05:56,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:05:56,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:05:56,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:05:56,910 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:05:56,911 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:05:56,912 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2020-11-09 17:05:57,007 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79e7ed801/879abd84c5b848dabd18b4c990de16ca/FLAG5d784a2fa [2020-11-09 17:05:57,689 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:05:57,690 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2020-11-09 17:05:57,709 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79e7ed801/879abd84c5b848dabd18b4c990de16ca/FLAG5d784a2fa [2020-11-09 17:05:57,946 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79e7ed801/879abd84c5b848dabd18b4c990de16ca [2020-11-09 17:05:57,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:05:57,961 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:05:57,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:05:57,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:05:57,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:05:57,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:05:57" (1/1) ... [2020-11-09 17:05:57,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef3e41d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:05:57, skipping insertion in model container [2020-11-09 17:05:57,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:05:57" (1/1) ... [2020-11-09 17:05:57,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:05:58,023 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:05:58,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:05:58,385 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:05:58,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:05:58,569 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:05:58,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:05:58 WrapperNode [2020-11-09 17:05:58,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:05:58,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:05:58,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:05:58,571 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:05:58,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:05:58" (1/1) ... [2020-11-09 17:05:58,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:05:58" (1/1) ... [2020-11-09 17:05:58,627 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:05:58,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:05:58,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:05:58,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:05:58,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:05:58" (1/1) ... [2020-11-09 17:05:58,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:05:58" (1/1) ... [2020-11-09 17:05:58,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:05:58" (1/1) ... [2020-11-09 17:05:58,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:05:58" (1/1) ... [2020-11-09 17:05:58,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:05:58" (1/1) ... [2020-11-09 17:05:58,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:05:58" (1/1) ... [2020-11-09 17:05:58,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:05:58" (1/1) ... [2020-11-09 17:05:58,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:05:58,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:05:58,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:05:58,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:05:58,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:05:58" (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 [2020-11-09 17:05:58,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:05:58,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 17:05:58,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:05:58,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:05:58,745 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 17:05:58,745 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 17:05:58,745 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 17:05:58,745 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 17:05:58,746 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 17:05:58,746 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 17:05:58,746 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-09 17:05:58,746 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-09 17:05:58,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:05:58,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 17:05:58,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:05:58,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:05:58,748 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 17:05:59,267 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:05:59,267 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 17:05:59,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:05:59 BoogieIcfgContainer [2020-11-09 17:05:59,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:05:59,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:05:59,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:05:59,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:05:59,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:05:57" (1/3) ... [2020-11-09 17:05:59,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f8bc73e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:05:59, skipping insertion in model container [2020-11-09 17:05:59,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:05:58" (2/3) ... [2020-11-09 17:05:59,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f8bc73e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:05:59, skipping insertion in model container [2020-11-09 17:05:59,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:05:59" (3/3) ... [2020-11-09 17:05:59,278 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.opt.i [2020-11-09 17:05:59,293 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:05:59,293 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:05:59,297 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:05:59,298 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:05:59,334 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,334 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,335 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,335 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,335 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,335 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,335 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,336 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,336 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,336 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,337 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,337 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,337 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,337 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,338 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,338 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,338 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,338 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,338 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,339 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,339 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,339 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,339 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,340 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,340 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,341 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,341 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,341 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,342 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,342 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,342 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,342 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,343 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,343 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,344 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,344 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,344 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,344 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,345 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,345 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,345 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,345 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,346 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,346 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,349 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,349 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,349 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,349 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,356 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,356 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,356 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,357 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,359 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,360 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,360 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,360 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,366 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,366 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,366 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,366 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:59,369 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:05:59,381 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-09 17:05:59,404 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:05:59,404 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:05:59,404 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:05:59,405 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:05:59,405 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:05:59,405 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:05:59,405 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:05:59,405 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:05:59,417 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:05:59,418 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 89 transitions, 198 flow [2020-11-09 17:05:59,421 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 89 transitions, 198 flow [2020-11-09 17:05:59,423 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 99 places, 89 transitions, 198 flow [2020-11-09 17:05:59,472 INFO L129 PetriNetUnfolder]: 3/85 cut-off events. [2020-11-09 17:05:59,473 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 17:05:59,478 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 85 events. 3/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 72 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-11-09 17:05:59,483 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-11-09 17:06:01,816 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-11-09 17:06:03,335 WARN L194 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 17:06:03,445 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 17:06:03,681 WARN L194 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 17:06:03,797 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 17:06:03,923 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-11-09 17:06:04,131 WARN L194 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2020-11-09 17:06:04,202 INFO L131 LiptonReduction]: Checked pairs total: 4334 [2020-11-09 17:06:04,202 INFO L133 LiptonReduction]: Total number of compositions: 82 [2020-11-09 17:06:04,209 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-11-09 17:06:04,269 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-11-09 17:06:04,271 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-11-09 17:06:04,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 17:06:04,281 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:06:04,282 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:06:04,282 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:06:04,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:06:04,288 INFO L82 PathProgramCache]: Analyzing trace with hash -782796091, now seen corresponding path program 1 times [2020-11-09 17:06:04,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:06:04,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218871011] [2020-11-09 17:06:04,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:06:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:06:04,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:06:04,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218871011] [2020-11-09 17:06:04,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:06:04,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 17:06:04,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1231788908] [2020-11-09 17:06:04,650 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:06:04,654 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:06:04,678 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-11-09 17:06:04,679 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:06:04,686 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:06:04,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:06:04,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:06:04,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:06:04,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:06:04,710 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-11-09 17:06:04,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:06:04,790 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-11-09 17:06:04,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:06:04,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-09 17:06:04,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:06:04,824 INFO L225 Difference]: With dead ends: 670 [2020-11-09 17:06:04,824 INFO L226 Difference]: Without dead ends: 526 [2020-11-09 17:06:04,826 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:06:04,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-11-09 17:06:04,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-11-09 17:06:04,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-11-09 17:06:04,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-11-09 17:06:04,937 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-11-09 17:06:04,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:06:04,938 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-11-09 17:06:04,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:06:04,938 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-11-09 17:06:04,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 17:06:04,941 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:06:04,941 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:06:04,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:06:04,941 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:06:04,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:06:04,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1879702246, now seen corresponding path program 1 times [2020-11-09 17:06:04,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:06:04,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442229786] [2020-11-09 17:06:04,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:06:04,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:06:05,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:06:05,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442229786] [2020-11-09 17:06:05,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:06:05,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:06:05,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1568950443] [2020-11-09 17:06:05,023 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:06:05,025 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:06:05,028 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-11-09 17:06:05,029 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:06:05,140 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:06:05,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:06:05,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:06:05,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:06:05,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:06:05,143 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-11-09 17:06:05,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:06:05,187 INFO L93 Difference]: Finished difference Result 724 states and 2331 transitions. [2020-11-09 17:06:05,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:06:05,188 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 17:06:05,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:06:05,193 INFO L225 Difference]: With dead ends: 724 [2020-11-09 17:06:05,193 INFO L226 Difference]: Without dead ends: 412 [2020-11-09 17:06:05,194 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:06:05,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-11-09 17:06:05,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2020-11-09 17:06:05,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-11-09 17:06:05,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 1323 transitions. [2020-11-09 17:06:05,217 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 1323 transitions. Word has length 11 [2020-11-09 17:06:05,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:06:05,217 INFO L481 AbstractCegarLoop]: Abstraction has 412 states and 1323 transitions. [2020-11-09 17:06:05,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:06:05,217 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 1323 transitions. [2020-11-09 17:06:05,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 17:06:05,219 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:06:05,219 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:06:05,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:06:05,220 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:06:05,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:06:05,220 INFO L82 PathProgramCache]: Analyzing trace with hash -647796126, now seen corresponding path program 1 times [2020-11-09 17:06:05,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:06:05,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461440714] [2020-11-09 17:06:05,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:06:05,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:06:05,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:06:05,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461440714] [2020-11-09 17:06:05,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:06:05,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 17:06:05,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [788926123] [2020-11-09 17:06:05,295 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:06:05,297 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:06:05,299 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 16 transitions. [2020-11-09 17:06:05,300 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:06:05,307 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:06:05,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:06:05,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:06:05,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:06:05,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:06:05,309 INFO L87 Difference]: Start difference. First operand 412 states and 1323 transitions. Second operand 3 states. [2020-11-09 17:06:05,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:06:05,322 INFO L93 Difference]: Finished difference Result 402 states and 1280 transitions. [2020-11-09 17:06:05,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:06:05,323 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-09 17:06:05,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:06:05,327 INFO L225 Difference]: With dead ends: 402 [2020-11-09 17:06:05,327 INFO L226 Difference]: Without dead ends: 402 [2020-11-09 17:06:05,327 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:06:05,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-11-09 17:06:05,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2020-11-09 17:06:05,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-11-09 17:06:05,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 1280 transitions. [2020-11-09 17:06:05,346 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 1280 transitions. Word has length 12 [2020-11-09 17:06:05,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:06:05,346 INFO L481 AbstractCegarLoop]: Abstraction has 402 states and 1280 transitions. [2020-11-09 17:06:05,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:06:05,347 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 1280 transitions. [2020-11-09 17:06:05,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 17:06:05,352 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:06:05,353 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:06:05,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:06:05,356 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:06:05,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:06:05,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1393153852, now seen corresponding path program 1 times [2020-11-09 17:06:05,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:06:05,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086001874] [2020-11-09 17:06:05,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:06:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:06:05,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:06:05,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086001874] [2020-11-09 17:06:05,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:06:05,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:06:05,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2055380519] [2020-11-09 17:06:05,429 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:06:05,431 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:06:05,433 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 19 transitions. [2020-11-09 17:06:05,433 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:06:05,439 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:06:05,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:06:05,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:06:05,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:06:05,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:06:05,440 INFO L87 Difference]: Start difference. First operand 402 states and 1280 transitions. Second operand 3 states. [2020-11-09 17:06:05,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:06:05,458 INFO L93 Difference]: Finished difference Result 518 states and 1560 transitions. [2020-11-09 17:06:05,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:06:05,459 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-11-09 17:06:05,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:06:05,462 INFO L225 Difference]: With dead ends: 518 [2020-11-09 17:06:05,462 INFO L226 Difference]: Without dead ends: 422 [2020-11-09 17:06:05,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:06:05,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2020-11-09 17:06:05,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 382. [2020-11-09 17:06:05,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2020-11-09 17:06:05,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 1156 transitions. [2020-11-09 17:06:05,477 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 1156 transitions. Word has length 13 [2020-11-09 17:06:05,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:06:05,477 INFO L481 AbstractCegarLoop]: Abstraction has 382 states and 1156 transitions. [2020-11-09 17:06:05,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:06:05,477 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 1156 transitions. [2020-11-09 17:06:05,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 17:06:05,478 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:06:05,479 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:06:05,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 17:06:05,479 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:06:05,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:06:05,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1393155433, now seen corresponding path program 1 times [2020-11-09 17:06:05,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:06:05,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896675457] [2020-11-09 17:06:05,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:06:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:06:05,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:06:05,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896675457] [2020-11-09 17:06:05,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:06:05,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 17:06:05,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1321724398] [2020-11-09 17:06:05,523 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:06:05,525 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:06:05,529 INFO L252 McrAutomatonBuilder]: Finished intersection with 25 states and 37 transitions. [2020-11-09 17:06:05,529 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:06:05,599 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:06:05,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:06:05,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:06:05,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:06:05,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:06:05,601 INFO L87 Difference]: Start difference. First operand 382 states and 1156 transitions. Second operand 3 states. [2020-11-09 17:06:05,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:06:05,612 INFO L93 Difference]: Finished difference Result 370 states and 1112 transitions. [2020-11-09 17:06:05,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:06:05,612 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-11-09 17:06:05,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:06:05,619 INFO L225 Difference]: With dead ends: 370 [2020-11-09 17:06:05,619 INFO L226 Difference]: Without dead ends: 370 [2020-11-09 17:06:05,619 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:06:05,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-11-09 17:06:05,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2020-11-09 17:06:05,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-11-09 17:06:05,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1112 transitions. [2020-11-09 17:06:05,634 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1112 transitions. Word has length 13 [2020-11-09 17:06:05,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:06:05,634 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 1112 transitions. [2020-11-09 17:06:05,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:06:05,635 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1112 transitions. [2020-11-09 17:06:05,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 17:06:05,636 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:06:05,636 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:06:05,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 17:06:05,637 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:06:05,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:06:05,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1625881232, now seen corresponding path program 1 times [2020-11-09 17:06:05,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:06:05,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897381155] [2020-11-09 17:06:05,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:06:05,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:06:05,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:06:05,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897381155] [2020-11-09 17:06:05,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:06:05,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:06:05,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [555238344] [2020-11-09 17:06:05,683 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:06:05,685 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:06:05,690 INFO L252 McrAutomatonBuilder]: Finished intersection with 31 states and 50 transitions. [2020-11-09 17:06:05,691 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:06:05,822 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:06:05,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:06:05,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:06:05,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:06:05,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:06:05,823 INFO L87 Difference]: Start difference. First operand 370 states and 1112 transitions. Second operand 4 states. [2020-11-09 17:06:05,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:06:05,889 INFO L93 Difference]: Finished difference Result 530 states and 1546 transitions. [2020-11-09 17:06:05,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:06:05,890 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-11-09 17:06:05,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:06:05,892 INFO L225 Difference]: With dead ends: 530 [2020-11-09 17:06:05,892 INFO L226 Difference]: Without dead ends: 278 [2020-11-09 17:06:05,893 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:06:05,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-11-09 17:06:05,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-11-09 17:06:05,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-11-09 17:06:05,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 791 transitions. [2020-11-09 17:06:05,904 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 791 transitions. Word has length 14 [2020-11-09 17:06:05,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:06:05,904 INFO L481 AbstractCegarLoop]: Abstraction has 278 states and 791 transitions. [2020-11-09 17:06:05,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:06:05,904 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 791 transitions. [2020-11-09 17:06:05,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 17:06:05,905 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:06:05,908 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:06:05,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 17:06:05,908 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:06:05,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:06:05,909 INFO L82 PathProgramCache]: Analyzing trace with hash 238144508, now seen corresponding path program 2 times [2020-11-09 17:06:05,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:06:05,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464675185] [2020-11-09 17:06:05,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:06:05,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:06:06,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:06:06,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464675185] [2020-11-09 17:06:06,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:06:06,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:06:06,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [465677264] [2020-11-09 17:06:06,035 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:06:06,038 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:06:06,045 INFO L252 McrAutomatonBuilder]: Finished intersection with 33 states and 54 transitions. [2020-11-09 17:06:06,046 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:06:06,070 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:06:06,111 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:06:06,132 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:06:06,171 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:06:06,198 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:06:06,211 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:06:06,256 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:06:06,273 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:06:06,288 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [9496#(not (= 4 ~__unbuffered_cnt~0))] [2020-11-09 17:06:06,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:06:06,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:06:06,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:06:06,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:06:06,291 INFO L87 Difference]: Start difference. First operand 278 states and 791 transitions. Second operand 5 states. [2020-11-09 17:06:06,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:06:06,382 INFO L93 Difference]: Finished difference Result 292 states and 753 transitions. [2020-11-09 17:06:06,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:06:06,382 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-09 17:06:06,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:06:06,384 INFO L225 Difference]: With dead ends: 292 [2020-11-09 17:06:06,384 INFO L226 Difference]: Without dead ends: 195 [2020-11-09 17:06:06,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:06:06,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-11-09 17:06:06,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2020-11-09 17:06:06,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-11-09 17:06:06,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 465 transitions. [2020-11-09 17:06:06,392 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 465 transitions. Word has length 14 [2020-11-09 17:06:06,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:06:06,392 INFO L481 AbstractCegarLoop]: Abstraction has 195 states and 465 transitions. [2020-11-09 17:06:06,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:06:06,392 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 465 transitions. [2020-11-09 17:06:06,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-09 17:06:06,393 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:06:06,393 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:06:06,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 17:06:06,394 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:06:06,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:06:06,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1046603743, now seen corresponding path program 1 times [2020-11-09 17:06:06,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:06:06,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714380802] [2020-11-09 17:06:06,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:06:06,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:06:06,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:06:06,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714380802] [2020-11-09 17:06:06,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:06:06,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:06:06,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [935906984] [2020-11-09 17:06:06,480 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:06:06,482 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:06:06,488 INFO L252 McrAutomatonBuilder]: Finished intersection with 38 states and 62 transitions. [2020-11-09 17:06:06,489 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:06:06,496 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:06:06,531 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:06:06,547 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:06:06,603 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [10189#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 17:06:06,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 17:06:06,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:06:06,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 17:06:06,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:06:06,605 INFO L87 Difference]: Start difference. First operand 195 states and 465 transitions. Second operand 7 states. [2020-11-09 17:06:06,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:06:06,674 INFO L93 Difference]: Finished difference Result 189 states and 428 transitions. [2020-11-09 17:06:06,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:06:06,674 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-11-09 17:06:06,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:06:06,676 INFO L225 Difference]: With dead ends: 189 [2020-11-09 17:06:06,676 INFO L226 Difference]: Without dead ends: 150 [2020-11-09 17:06:06,676 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-09 17:06:06,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-11-09 17:06:06,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-11-09 17:06:06,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-11-09 17:06:06,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 339 transitions. [2020-11-09 17:06:06,681 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 339 transitions. Word has length 16 [2020-11-09 17:06:06,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:06:06,682 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 339 transitions. [2020-11-09 17:06:06,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 17:06:06,682 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 339 transitions. [2020-11-09 17:06:06,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 17:06:06,683 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:06:06,683 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:06:06,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 17:06:06,683 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:06:06,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:06:06,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1569359463, now seen corresponding path program 1 times [2020-11-09 17:06:06,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:06:06,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368367590] [2020-11-09 17:06:06,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:06:06,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:06:06,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:06:06,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368367590] [2020-11-09 17:06:06,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:06:06,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:06:06,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1725246607] [2020-11-09 17:06:06,724 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:06:06,726 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:06:06,732 INFO L252 McrAutomatonBuilder]: Finished intersection with 34 states and 48 transitions. [2020-11-09 17:06:06,732 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:06:06,747 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:06:06,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:06:06,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:06:06,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:06:06,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:06:06,749 INFO L87 Difference]: Start difference. First operand 150 states and 339 transitions. Second operand 4 states. [2020-11-09 17:06:06,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:06:06,771 INFO L93 Difference]: Finished difference Result 182 states and 403 transitions. [2020-11-09 17:06:06,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:06:06,771 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-11-09 17:06:06,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:06:06,773 INFO L225 Difference]: With dead ends: 182 [2020-11-09 17:06:06,773 INFO L226 Difference]: Without dead ends: 139 [2020-11-09 17:06:06,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:06:06,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-11-09 17:06:06,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 137. [2020-11-09 17:06:06,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-11-09 17:06:06,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 301 transitions. [2020-11-09 17:06:06,778 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 301 transitions. Word has length 18 [2020-11-09 17:06:06,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:06:06,778 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 301 transitions. [2020-11-09 17:06:06,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:06:06,779 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 301 transitions. [2020-11-09 17:06:06,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 17:06:06,779 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:06:06,779 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:06:06,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 17:06:06,780 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:06:06,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:06:06,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1563997083, now seen corresponding path program 2 times [2020-11-09 17:06:06,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:06:06,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474375637] [2020-11-09 17:06:06,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:06:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:06:06,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:06:06,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474375637] [2020-11-09 17:06:06,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:06:06,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 17:06:06,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [885372413] [2020-11-09 17:06:06,899 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:06:06,901 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:06:06,908 INFO L252 McrAutomatonBuilder]: Finished intersection with 43 states and 66 transitions. [2020-11-09 17:06:06,908 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:06:06,934 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:06:06,948 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [11151#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 17:06:06,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-09 17:06:06,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:06:06,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-09 17:06:06,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-11-09 17:06:06,949 INFO L87 Difference]: Start difference. First operand 137 states and 301 transitions. Second operand 8 states. [2020-11-09 17:06:07,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:06:07,028 INFO L93 Difference]: Finished difference Result 132 states and 289 transitions. [2020-11-09 17:06:07,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-09 17:06:07,028 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-11-09 17:06:07,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:06:07,029 INFO L225 Difference]: With dead ends: 132 [2020-11-09 17:06:07,029 INFO L226 Difference]: Without dead ends: 51 [2020-11-09 17:06:07,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-09 17:06:07,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-11-09 17:06:07,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-11-09 17:06:07,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-11-09 17:06:07,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 97 transitions. [2020-11-09 17:06:07,032 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 97 transitions. Word has length 18 [2020-11-09 17:06:07,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:06:07,032 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 97 transitions. [2020-11-09 17:06:07,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-09 17:06:07,032 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 97 transitions. [2020-11-09 17:06:07,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-09 17:06:07,033 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:06:07,033 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:06:07,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-09 17:06:07,033 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:06:07,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:06:07,034 INFO L82 PathProgramCache]: Analyzing trace with hash -299924038, now seen corresponding path program 1 times [2020-11-09 17:06:07,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:06:07,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944931819] [2020-11-09 17:06:07,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:06:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:06:07,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:06:07,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944931819] [2020-11-09 17:06:07,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:06:07,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:06:07,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1862167213] [2020-11-09 17:06:07,063 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:06:07,066 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:06:07,074 INFO L252 McrAutomatonBuilder]: Finished intersection with 52 states and 80 transitions. [2020-11-09 17:06:07,075 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:06:07,080 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:06:07,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:06:07,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:06:07,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:06:07,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:06:07,082 INFO L87 Difference]: Start difference. First operand 51 states and 97 transitions. Second operand 3 states. [2020-11-09 17:06:07,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:06:07,088 INFO L93 Difference]: Finished difference Result 50 states and 96 transitions. [2020-11-09 17:06:07,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:06:07,089 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-11-09 17:06:07,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:06:07,089 INFO L225 Difference]: With dead ends: 50 [2020-11-09 17:06:07,089 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 17:06:07,089 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:06:07,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 17:06:07,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 17:06:07,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 17:06:07,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 17:06:07,090 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-11-09 17:06:07,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:06:07,091 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 17:06:07,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:06:07,091 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 17:06:07,091 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 17:06:07,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-09 17:06:07,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:06:07 BasicIcfg [2020-11-09 17:06:07,094 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:06:07,096 INFO L168 Benchmark]: Toolchain (without parser) took 9143.23 ms. Allocated memory was 151.0 MB in the beginning and 220.2 MB in the end (delta: 69.2 MB). Free memory was 125.2 MB in the beginning and 150.6 MB in the end (delta: -25.4 MB). Peak memory consumption was 44.4 MB. Max. memory is 8.0 GB. [2020-11-09 17:06:07,096 INFO L168 Benchmark]: CDTParser took 0.83 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 124.8 MB in the end (delta: 77.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:06:07,097 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.39 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 125.6 MB in the end (delta: -973.3 kB). Peak memory consumption was 28.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:06:07,098 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.33 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 123.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:06:07,099 INFO L168 Benchmark]: Boogie Preprocessor took 29.75 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 122.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:06:07,099 INFO L168 Benchmark]: RCFGBuilder took 611.34 ms. Allocated memory is still 151.0 MB. Free memory was 122.5 MB in the beginning and 97.8 MB in the end (delta: 24.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2020-11-09 17:06:07,100 INFO L168 Benchmark]: TraceAbstraction took 7823.56 ms. Allocated memory was 151.0 MB in the beginning and 220.2 MB in the end (delta: 69.2 MB). Free memory was 97.8 MB in the beginning and 150.6 MB in the end (delta: -52.8 MB). Peak memory consumption was 16.4 MB. Max. memory is 8.0 GB. [2020-11-09 17:06:07,104 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 124.8 MB in the end (delta: 77.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 606.39 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 125.6 MB in the end (delta: -973.3 kB). Peak memory consumption was 28.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 56.33 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 123.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.75 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 122.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 611.34 ms. Allocated memory is still 151.0 MB. Free memory was 122.5 MB in the beginning and 97.8 MB in the end (delta: 24.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7823.56 ms. Allocated memory was 151.0 MB in the beginning and 220.2 MB in the end (delta: 69.2 MB). Free memory was 97.8 MB in the beginning and 150.6 MB in the end (delta: -52.8 MB). Peak memory consumption was 16.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1132 VarBasedMoverChecksPositive, 41 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 64 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.7s, 99 PlacesBefore, 38 PlacesAfterwards, 89 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 2 ChoiceCompositions, 82 TotalNumberOfCompositions, 4334 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.6s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, HoareTripleCheckerStatistics: 239 SDtfs, 176 SDslu, 320 SDs, 0 SdLazy, 178 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 99 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 42 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 5196 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...