/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 00:33:06,423 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 00:33:06,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 00:33:06,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 00:33:06,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 00:33:06,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 00:33:06,452 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 00:33:06,454 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 00:33:06,456 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 00:33:06,457 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 00:33:06,457 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 00:33:06,459 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 00:33:06,459 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 00:33:06,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 00:33:06,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 00:33:06,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 00:33:06,463 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 00:33:06,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 00:33:06,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 00:33:06,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 00:33:06,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 00:33:06,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 00:33:06,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 00:33:06,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 00:33:06,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-22 00:33:06,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 00:33:06,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 00:33:06,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 00:33:06,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 00:33:06,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 00:33:06,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 00:33:06,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 00:33:06,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 00:33:06,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 00:33:06,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 00:33:06,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 00:33:06,484 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-WP.epf [2020-10-22 00:33:06,522 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 00:33:06,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 00:33:06,524 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 00:33:06,524 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 00:33:06,524 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 00:33:06,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 00:33:06,526 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 00:33:06,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 00:33:06,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 00:33:06,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 00:33:06,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 00:33:06,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 00:33:06,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 00:33:06,528 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 00:33:06,529 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 00:33:06,529 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 00:33:06,529 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 00:33:06,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 00:33:06,530 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 00:33:06,530 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 00:33:06,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 00:33:06,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 00:33:06,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 00:33:06,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 00:33:06,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 00:33:06,531 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 00:33:06,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 00:33:06,532 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 00:33:06,532 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 00:33:06,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 00:33:06,532 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 00:33:06,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 00:33:06,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 00:33:06,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 00:33:06,852 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 00:33:06,852 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 00:33:06,853 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc.i [2020-10-22 00:33:06,916 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12bb5b43f/93bc8222d2574f4785b7d4f9cd2475c9/FLAGc94a0176a [2020-10-22 00:33:07,498 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 00:33:07,499 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc.i [2020-10-22 00:33:07,518 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12bb5b43f/93bc8222d2574f4785b7d4f9cd2475c9/FLAGc94a0176a [2020-10-22 00:33:07,748 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12bb5b43f/93bc8222d2574f4785b7d4f9cd2475c9 [2020-10-22 00:33:07,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 00:33:07,764 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 00:33:07,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 00:33:07,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 00:33:07,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 00:33:07,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:33:07" (1/1) ... [2020-10-22 00:33:07,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e5c1ab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:07, skipping insertion in model container [2020-10-22 00:33:07,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:33:07" (1/1) ... [2020-10-22 00:33:07,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 00:33:07,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 00:33:08,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:33:08,325 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 00:33:08,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:33:08,495 INFO L208 MainTranslator]: Completed translation [2020-10-22 00:33:08,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:08 WrapperNode [2020-10-22 00:33:08,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 00:33:08,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 00:33:08,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 00:33:08,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 00:33:08,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:08" (1/1) ... [2020-10-22 00:33:08,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:08" (1/1) ... [2020-10-22 00:33:08,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 00:33:08,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 00:33:08,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 00:33:08,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 00:33:08,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:08" (1/1) ... [2020-10-22 00:33:08,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:08" (1/1) ... [2020-10-22 00:33:08,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:08" (1/1) ... [2020-10-22 00:33:08,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:08" (1/1) ... [2020-10-22 00:33:08,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:08" (1/1) ... [2020-10-22 00:33:08,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:08" (1/1) ... [2020-10-22 00:33:08,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:08" (1/1) ... [2020-10-22 00:33:08,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 00:33:08,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 00:33:08,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 00:33:08,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 00:33:08,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 00:33:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 00:33:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 00:33:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 00:33:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 00:33:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 00:33:08,648 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 00:33:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 00:33:08,649 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 00:33:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 00:33:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 00:33:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 00:33:08,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 00:33:08,651 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 00:33:08,986 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 00:33:08,987 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 00:33:08,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:33:08 BoogieIcfgContainer [2020-10-22 00:33:08,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 00:33:08,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 00:33:08,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 00:33:08,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 00:33:08,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 12:33:07" (1/3) ... [2020-10-22 00:33:08,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ed09fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:33:08, skipping insertion in model container [2020-10-22 00:33:08,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:08" (2/3) ... [2020-10-22 00:33:08,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ed09fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:33:08, skipping insertion in model container [2020-10-22 00:33:08,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:33:08" (3/3) ... [2020-10-22 00:33:08,998 INFO L111 eAbstractionObserver]: Analyzing ICFG safe006_pso.oepc.i [2020-10-22 00:33:09,010 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 00:33:09,011 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 00:33:09,018 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 00:33:09,019 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 00:33:09,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:09,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:09,059 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:09,060 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:09,063 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:09,063 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:09,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:09,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:09,065 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:09,065 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:09,065 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:09,066 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:09,075 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:09,079 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:09,079 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:09,080 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:09,087 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:09,088 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:09,088 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:09,089 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:09,097 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 00:33:09,111 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-22 00:33:09,130 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 00:33:09,130 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 00:33:09,131 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 00:33:09,131 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 00:33:09,131 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 00:33:09,131 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 00:33:09,131 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 00:33:09,131 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 00:33:09,144 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 00:33:09,145 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 65 transitions, 140 flow [2020-10-22 00:33:09,147 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 65 transitions, 140 flow [2020-10-22 00:33:09,150 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 140 flow [2020-10-22 00:33:09,201 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2020-10-22 00:33:09,202 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 00:33:09,208 INFO L80 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-10-22 00:33:09,212 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2020-10-22 00:33:10,402 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-10-22 00:33:10,701 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-22 00:33:10,819 INFO L131 LiptonReduction]: Checked pairs total: 1892 [2020-10-22 00:33:10,819 INFO L133 LiptonReduction]: Total number of compositions: 66 [2020-10-22 00:33:10,826 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2020-10-22 00:33:10,840 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2020-10-22 00:33:10,842 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-10-22 00:33:10,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-22 00:33:10,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:33:10,850 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-22 00:33:10,850 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:33:10,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:33:10,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1281927427, now seen corresponding path program 1 times [2020-10-22 00:33:10,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:33:10,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344993831] [2020-10-22 00:33:10,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:33:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:33:11,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:33:11,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344993831] [2020-10-22 00:33:11,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:33:11,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:33:11,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [719351574] [2020-10-22 00:33:11,047 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:33:11,050 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:33:11,075 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-10-22 00:33:11,075 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:33:11,080 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:33:11,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-22 00:33:11,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:33:11,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-22 00:33:11,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 00:33:11,101 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-10-22 00:33:11,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:33:11,118 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2020-10-22 00:33:11,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-22 00:33:11,120 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-10-22 00:33:11,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:33:11,135 INFO L225 Difference]: With dead ends: 90 [2020-10-22 00:33:11,135 INFO L226 Difference]: Without dead ends: 74 [2020-10-22 00:33:11,137 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 00:33:11,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-22 00:33:11,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-22 00:33:11,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-22 00:33:11,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2020-10-22 00:33:11,199 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2020-10-22 00:33:11,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:33:11,200 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2020-10-22 00:33:11,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-22 00:33:11,200 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2020-10-22 00:33:11,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-22 00:33:11,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:33:11,201 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:33:11,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 00:33:11,202 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:33:11,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:33:11,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1085050971, now seen corresponding path program 1 times [2020-10-22 00:33:11,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:33:11,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327149224] [2020-10-22 00:33:11,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:33:11,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:33:11,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:33:11,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327149224] [2020-10-22 00:33:11,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:33:11,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:33:11,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [842515446] [2020-10-22 00:33:11,342 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:33:11,342 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:33:11,344 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-10-22 00:33:11,344 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:33:11,344 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:33:11,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:33:11,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:33:11,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:33:11,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:33:11,347 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 4 states. [2020-10-22 00:33:11,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:33:11,380 INFO L93 Difference]: Finished difference Result 82 states and 166 transitions. [2020-10-22 00:33:11,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:33:11,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-22 00:33:11,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:33:11,381 INFO L225 Difference]: With dead ends: 82 [2020-10-22 00:33:11,382 INFO L226 Difference]: Without dead ends: 66 [2020-10-22 00:33:11,383 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:33:11,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-22 00:33:11,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-22 00:33:11,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-22 00:33:11,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 138 transitions. [2020-10-22 00:33:11,392 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 138 transitions. Word has length 7 [2020-10-22 00:33:11,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:33:11,392 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 138 transitions. [2020-10-22 00:33:11,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:33:11,392 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 138 transitions. [2020-10-22 00:33:11,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 00:33:11,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:33:11,393 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:33:11,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 00:33:11,394 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:33:11,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:33:11,394 INFO L82 PathProgramCache]: Analyzing trace with hash 608100949, now seen corresponding path program 1 times [2020-10-22 00:33:11,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:33:11,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135531367] [2020-10-22 00:33:11,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:33:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:33:11,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:33:11,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135531367] [2020-10-22 00:33:11,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:33:11,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 00:33:11,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [106920186] [2020-10-22 00:33:11,507 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:33:11,509 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:33:11,512 INFO L252 McrAutomatonBuilder]: Finished intersection with 12 states and 14 transitions. [2020-10-22 00:33:11,512 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:33:11,588 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [718#(not (= ~y~0 1))] [2020-10-22 00:33:11,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 00:33:11,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:33:11,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 00:33:11,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:33:11,590 INFO L87 Difference]: Start difference. First operand 66 states and 138 transitions. Second operand 7 states. [2020-10-22 00:33:11,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:33:11,723 INFO L93 Difference]: Finished difference Result 78 states and 155 transitions. [2020-10-22 00:33:11,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-22 00:33:11,723 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2020-10-22 00:33:11,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:33:11,724 INFO L225 Difference]: With dead ends: 78 [2020-10-22 00:33:11,724 INFO L226 Difference]: Without dead ends: 36 [2020-10-22 00:33:11,725 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-22 00:33:11,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-22 00:33:11,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-22 00:33:11,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-22 00:33:11,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 64 transitions. [2020-10-22 00:33:11,729 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 64 transitions. Word has length 8 [2020-10-22 00:33:11,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:33:11,730 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 64 transitions. [2020-10-22 00:33:11,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 00:33:11,730 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 64 transitions. [2020-10-22 00:33:11,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 00:33:11,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:33:11,731 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:33:11,731 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 00:33:11,731 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:33:11,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:33:11,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1657564646, now seen corresponding path program 1 times [2020-10-22 00:33:11,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:33:11,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279711750] [2020-10-22 00:33:11,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:33:11,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:33:11,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:33:11,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279711750] [2020-10-22 00:33:11,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:33:11,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:33:11,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [688447052] [2020-10-22 00:33:11,795 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:33:11,796 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:33:11,797 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 16 transitions. [2020-10-22 00:33:11,797 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:33:11,819 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:33:11,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:33:11,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:33:11,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:33:11,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:33:11,821 INFO L87 Difference]: Start difference. First operand 36 states and 64 transitions. Second operand 5 states. [2020-10-22 00:33:11,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:33:11,855 INFO L93 Difference]: Finished difference Result 30 states and 51 transitions. [2020-10-22 00:33:11,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 00:33:11,856 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-22 00:33:11,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:33:11,857 INFO L225 Difference]: With dead ends: 30 [2020-10-22 00:33:11,857 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 00:33:11,857 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-22 00:33:11,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 00:33:11,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 00:33:11,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 00:33:11,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 00:33:11,858 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-10-22 00:33:11,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:33:11,858 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 00:33:11,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:33:11,858 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 00:33:11,858 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 00:33:11,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 00:33:11,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 12:33:11 BasicIcfg [2020-10-22 00:33:11,862 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 00:33:11,864 INFO L168 Benchmark]: Toolchain (without parser) took 4104.77 ms. Allocated memory was 137.9 MB in the beginning and 251.7 MB in the end (delta: 113.8 MB). Free memory was 99.5 MB in the beginning and 90.5 MB in the end (delta: 9.0 MB). Peak memory consumption was 122.7 MB. Max. memory is 7.1 GB. [2020-10-22 00:33:11,865 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-22 00:33:11,866 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.72 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 98.6 MB in the beginning and 154.6 MB in the end (delta: -56.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-10-22 00:33:11,867 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.89 ms. Allocated memory is still 200.3 MB. Free memory was 154.6 MB in the beginning and 152.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-22 00:33:11,867 INFO L168 Benchmark]: Boogie Preprocessor took 28.06 ms. Allocated memory is still 200.3 MB. Free memory was 152.5 MB in the beginning and 150.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-22 00:33:11,868 INFO L168 Benchmark]: RCFGBuilder took 419.99 ms. Allocated memory is still 200.3 MB. Free memory was 150.4 MB in the beginning and 128.3 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-10-22 00:33:11,869 INFO L168 Benchmark]: TraceAbstraction took 2870.79 ms. Allocated memory was 200.3 MB in the beginning and 251.7 MB in the end (delta: 51.4 MB). Free memory was 128.3 MB in the beginning and 90.5 MB in the end (delta: 37.8 MB). Peak memory consumption was 89.2 MB. Max. memory is 7.1 GB. [2020-10-22 00:33:11,874 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 731.72 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 98.6 MB in the beginning and 154.6 MB in the end (delta: -56.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 42.89 ms. Allocated memory is still 200.3 MB. Free memory was 154.6 MB in the beginning and 152.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.06 ms. Allocated memory is still 200.3 MB. Free memory was 152.5 MB in the beginning and 150.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 419.99 ms. Allocated memory is still 200.3 MB. Free memory was 150.4 MB in the beginning and 128.3 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2870.79 ms. Allocated memory was 200.3 MB in the beginning and 251.7 MB in the end (delta: 51.4 MB). Free memory was 128.3 MB in the beginning and 90.5 MB in the end (delta: 37.8 MB). Peak memory consumption was 89.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 449 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 23 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 69 PlacesBefore, 23 PlacesAfterwards, 65 TransitionsBefore, 17 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 66 TotalNumberOfCompositions, 1892 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 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 56 SDtfs, 73 SDslu, 72 SDs, 0 SdLazy, 54 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 802 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...