/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-atomic/time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:31:00,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:31:00,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:31:00,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:31:00,418 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:31:00,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:31:00,430 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:31:00,434 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:31:00,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:31:00,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:31:00,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:31:00,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:31:00,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:31:00,446 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:31:00,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:31:00,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:31:00,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:31:00,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:31:00,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:31:00,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:31:00,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:31:00,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:31:00,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:31:00,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:31:00,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 12:31:00,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:31:00,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:31:00,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:31:00,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:31:00,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:31:00,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:31:00,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:31:00,487 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:31:00,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:31:00,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:31:00,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:31:00,490 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 12:31:00,537 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:31:00,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:31:00,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:31:00,540 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:31:00,540 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:31:00,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:31:00,540 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:31:00,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:31:00,541 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:31:00,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:31:00,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:31:00,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:31:00,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:31:00,543 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:31:00,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:31:00,544 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:31:00,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:31:00,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:31:00,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:31:00,545 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:31:00,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:31:00,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:31:00,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:31:00,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:31:00,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:31:00,546 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:31:00,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:31:00,546 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 12:31:00,546 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:31:00,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:31:00,547 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 12:31:00,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:31:00,857 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:31:00,861 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:31:00,862 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:31:00,862 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:31:00,863 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2020-10-16 12:31:00,934 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dceb63495/b850ba3b44bb4101934d59c4f2bfa0aa/FLAG54cb7da92 [2020-10-16 12:31:01,473 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:31:01,474 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2020-10-16 12:31:01,492 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dceb63495/b850ba3b44bb4101934d59c4f2bfa0aa/FLAG54cb7da92 [2020-10-16 12:31:01,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dceb63495/b850ba3b44bb4101934d59c4f2bfa0aa [2020-10-16 12:31:01,794 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:31:01,796 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:31:01,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:31:01,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:31:01,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:31:01,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:31:01" (1/1) ... [2020-10-16 12:31:01,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b4c7066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:01, skipping insertion in model container [2020-10-16 12:31:01,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:31:01" (1/1) ... [2020-10-16 12:31:01,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:31:01,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:31:02,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:31:02,292 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:31:02,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:31:02,440 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:31:02,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:02 WrapperNode [2020-10-16 12:31:02,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:31:02,443 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:31:02,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:31:02,444 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:31:02,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:02" (1/1) ... [2020-10-16 12:31:02,494 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:02" (1/1) ... [2020-10-16 12:31:02,528 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:31:02,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:31:02,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:31:02,529 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:31:02,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:02" (1/1) ... [2020-10-16 12:31:02,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:02" (1/1) ... [2020-10-16 12:31:02,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:02" (1/1) ... [2020-10-16 12:31:02,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:02" (1/1) ... [2020-10-16 12:31:02,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:02" (1/1) ... [2020-10-16 12:31:02,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:02" (1/1) ... [2020-10-16 12:31:02,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:02" (1/1) ... [2020-10-16 12:31:02,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:31:02,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:31:02,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:31:02,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:31:02,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 12:31:02,647 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2020-10-16 12:31:02,647 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2020-10-16 12:31:02,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 12:31:02,647 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2020-10-16 12:31:02,648 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2020-10-16 12:31:02,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:31:02,648 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 12:31:02,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:31:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:31:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 12:31:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:31:02,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:31:02,651 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 12:31:03,041 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:31:03,041 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-16 12:31:03,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:31:03 BoogieIcfgContainer [2020-10-16 12:31:03,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:31:03,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:31:03,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:31:03,058 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:31:03,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:31:01" (1/3) ... [2020-10-16 12:31:03,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0eb48b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:31:03, skipping insertion in model container [2020-10-16 12:31:03,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:02" (2/3) ... [2020-10-16 12:31:03,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0eb48b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:31:03, skipping insertion in model container [2020-10-16 12:31:03,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:31:03" (3/3) ... [2020-10-16 12:31:03,063 INFO L111 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2020-10-16 12:31:03,077 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:31:03,077 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:31:03,086 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 12:31:03,087 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:31:03,120 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,120 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,121 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,121 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,121 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,122 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,122 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,122 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,123 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,124 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,126 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,126 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,127 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,127 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,127 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,127 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,128 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,128 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,133 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,133 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,134 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,134 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,137 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,137 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,152 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,152 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,153 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,153 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,155 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:03,164 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-16 12:31:03,180 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 12:31:03,204 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:31:03,204 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:31:03,204 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:31:03,205 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 12:31:03,205 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:31:03,205 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:31:03,205 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:31:03,205 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:31:03,221 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:31:03,222 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 84 transitions, 190 flow [2020-10-16 12:31:03,225 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 84 transitions, 190 flow [2020-10-16 12:31:03,227 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 84 transitions, 190 flow [2020-10-16 12:31:03,278 INFO L129 PetriNetUnfolder]: 6/84 cut-off events. [2020-10-16 12:31:03,278 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 12:31:03,284 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 84 events. 6/84 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 99 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 54. Up to 3 conditions per place. [2020-10-16 12:31:03,287 INFO L117 LiptonReduction]: Number of co-enabled transitions 886 [2020-10-16 12:31:04,835 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-16 12:31:05,390 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 112 [2020-10-16 12:31:05,573 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-16 12:31:05,583 INFO L132 LiptonReduction]: Checked pairs total: 4129 [2020-10-16 12:31:05,584 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-16 12:31:05,591 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 32 transitions, 86 flow [2020-10-16 12:31:05,622 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 218 states. [2020-10-16 12:31:05,624 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states. [2020-10-16 12:31:05,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-16 12:31:05,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:05,633 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 12:31:05,633 INFO L429 AbstractCegarLoop]: === Iteration 1 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:05,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:05,640 INFO L82 PathProgramCache]: Analyzing trace with hash 293912045, now seen corresponding path program 1 times [2020-10-16 12:31:05,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:05,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590546866] [2020-10-16 12:31:05,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:05,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:05,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590546866] [2020-10-16 12:31:05,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:05,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:31:05,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1767236942] [2020-10-16 12:31:05,957 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:05,961 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:05,975 INFO L258 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-10-16 12:31:05,976 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:05,982 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:31:05,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:31:05,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:05,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:31:05,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:31:05,998 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 3 states. [2020-10-16 12:31:06,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:06,028 INFO L93 Difference]: Finished difference Result 218 states and 483 transitions. [2020-10-16 12:31:06,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:31:06,030 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-16 12:31:06,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:06,044 INFO L225 Difference]: With dead ends: 218 [2020-10-16 12:31:06,045 INFO L226 Difference]: Without dead ends: 188 [2020-10-16 12:31:06,046 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:31:06,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-10-16 12:31:06,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2020-10-16 12:31:06,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-16 12:31:06,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 412 transitions. [2020-10-16 12:31:06,110 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 412 transitions. Word has length 5 [2020-10-16 12:31:06,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:06,110 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 412 transitions. [2020-10-16 12:31:06,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:31:06,111 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 412 transitions. [2020-10-16 12:31:06,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 12:31:06,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:06,112 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:31:06,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:31:06,113 INFO L429 AbstractCegarLoop]: === Iteration 2 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:06,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:06,113 INFO L82 PathProgramCache]: Analyzing trace with hash -2033676981, now seen corresponding path program 1 times [2020-10-16 12:31:06,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:06,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273515824] [2020-10-16 12:31:06,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:06,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:06,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273515824] [2020-10-16 12:31:06,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:06,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:31:06,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1545294003] [2020-10-16 12:31:06,220 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:06,221 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:06,222 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-16 12:31:06,223 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:06,225 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:31:06,227 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:31:06,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:06,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:31:06,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:31:06,228 INFO L87 Difference]: Start difference. First operand 188 states and 412 transitions. Second operand 3 states. [2020-10-16 12:31:06,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:06,271 INFO L93 Difference]: Finished difference Result 207 states and 431 transitions. [2020-10-16 12:31:06,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:31:06,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 12:31:06,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:06,274 INFO L225 Difference]: With dead ends: 207 [2020-10-16 12:31:06,274 INFO L226 Difference]: Without dead ends: 175 [2020-10-16 12:31:06,275 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:31:06,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-10-16 12:31:06,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 157. [2020-10-16 12:31:06,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-10-16 12:31:06,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 339 transitions. [2020-10-16 12:31:06,293 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 339 transitions. Word has length 8 [2020-10-16 12:31:06,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:06,294 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 339 transitions. [2020-10-16 12:31:06,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:31:06,294 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 339 transitions. [2020-10-16 12:31:06,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 12:31:06,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:06,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:31:06,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:31:06,296 INFO L429 AbstractCegarLoop]: === Iteration 3 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:06,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:06,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1494763716, now seen corresponding path program 1 times [2020-10-16 12:31:06,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:06,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964851612] [2020-10-16 12:31:06,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:06,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:06,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964851612] [2020-10-16 12:31:06,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:06,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:31:06,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [878332712] [2020-10-16 12:31:06,342 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:06,343 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:06,344 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-16 12:31:06,344 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:06,345 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:31:06,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:31:06,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:06,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:31:06,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:31:06,346 INFO L87 Difference]: Start difference. First operand 157 states and 339 transitions. Second operand 3 states. [2020-10-16 12:31:06,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:06,362 INFO L93 Difference]: Finished difference Result 154 states and 316 transitions. [2020-10-16 12:31:06,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:31:06,363 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 12:31:06,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:06,364 INFO L225 Difference]: With dead ends: 154 [2020-10-16 12:31:06,364 INFO L226 Difference]: Without dead ends: 100 [2020-10-16 12:31:06,365 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:31:06,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-10-16 12:31:06,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-10-16 12:31:06,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-16 12:31:06,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 189 transitions. [2020-10-16 12:31:06,373 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 189 transitions. Word has length 8 [2020-10-16 12:31:06,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:06,374 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 189 transitions. [2020-10-16 12:31:06,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:31:06,374 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 189 transitions. [2020-10-16 12:31:06,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 12:31:06,375 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:06,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:31:06,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:31:06,376 INFO L429 AbstractCegarLoop]: === Iteration 4 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:06,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:06,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1061881055, now seen corresponding path program 1 times [2020-10-16 12:31:06,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:06,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928045975] [2020-10-16 12:31:06,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:06,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:06,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928045975] [2020-10-16 12:31:06,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:06,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:31:06,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2069022450] [2020-10-16 12:31:06,429 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:06,431 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:06,434 INFO L258 McrAutomatonBuilder]: Finished intersection with 25 states and 34 transitions. [2020-10-16 12:31:06,434 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:06,461 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:31:06,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:31:06,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:06,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:31:06,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:31:06,462 INFO L87 Difference]: Start difference. First operand 100 states and 189 transitions. Second operand 3 states. [2020-10-16 12:31:06,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:06,469 INFO L93 Difference]: Finished difference Result 100 states and 183 transitions. [2020-10-16 12:31:06,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:31:06,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-16 12:31:06,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:06,471 INFO L225 Difference]: With dead ends: 100 [2020-10-16 12:31:06,472 INFO L226 Difference]: Without dead ends: 82 [2020-10-16 12:31:06,472 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 [2020-10-16 12:31:06,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-16 12:31:06,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-10-16 12:31:06,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-16 12:31:06,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 147 transitions. [2020-10-16 12:31:06,479 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 147 transitions. Word has length 13 [2020-10-16 12:31:06,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:06,480 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 147 transitions. [2020-10-16 12:31:06,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:31:06,480 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 147 transitions. [2020-10-16 12:31:06,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 12:31:06,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:06,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:31:06,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:31:06,482 INFO L429 AbstractCegarLoop]: === Iteration 5 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:06,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:06,482 INFO L82 PathProgramCache]: Analyzing trace with hash -234834685, now seen corresponding path program 2 times [2020-10-16 12:31:06,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:06,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286349811] [2020-10-16 12:31:06,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:06,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:06,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286349811] [2020-10-16 12:31:06,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:06,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:31:06,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [493625621] [2020-10-16 12:31:06,533 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:06,535 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:06,537 INFO L258 McrAutomatonBuilder]: Finished intersection with 21 states and 26 transitions. [2020-10-16 12:31:06,538 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:06,547 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:31:06,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:31:06,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:06,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:31:06,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:31:06,549 INFO L87 Difference]: Start difference. First operand 82 states and 147 transitions. Second operand 4 states. [2020-10-16 12:31:06,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:06,571 INFO L93 Difference]: Finished difference Result 26 states and 43 transitions. [2020-10-16 12:31:06,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:31:06,572 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-16 12:31:06,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:06,572 INFO L225 Difference]: With dead ends: 26 [2020-10-16 12:31:06,573 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 12:31:06,573 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:31:06,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 12:31:06,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 12:31:06,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 12:31:06,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 12:31:06,574 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-16 12:31:06,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:06,574 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 12:31:06,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:31:06,575 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 12:31:06,575 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 12:31:06,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:31:06,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:31:06 BasicIcfg [2020-10-16 12:31:06,579 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:31:06,581 INFO L168 Benchmark]: Toolchain (without parser) took 4785.57 ms. Allocated memory was 146.3 MB in the beginning and 247.5 MB in the end (delta: 101.2 MB). Free memory was 101.4 MB in the beginning and 152.2 MB in the end (delta: -50.8 MB). Peak memory consumption was 50.4 MB. Max. memory is 7.1 GB. [2020-10-16 12:31:06,582 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 146.3 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:31:06,583 INFO L168 Benchmark]: CACSL2BoogieTranslator took 645.46 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 100.9 MB in the beginning and 161.4 MB in the end (delta: -60.5 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-10-16 12:31:06,584 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.47 ms. Allocated memory is still 202.9 MB. Free memory was 161.4 MB in the beginning and 159.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:31:06,585 INFO L168 Benchmark]: Boogie Preprocessor took 54.95 ms. Allocated memory is still 202.9 MB. Free memory was 159.5 MB in the beginning and 157.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:31:06,586 INFO L168 Benchmark]: RCFGBuilder took 462.47 ms. Allocated memory is still 202.9 MB. Free memory was 157.5 MB in the beginning and 133.1 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-10-16 12:31:06,586 INFO L168 Benchmark]: TraceAbstraction took 3531.36 ms. Allocated memory was 202.9 MB in the beginning and 247.5 MB in the end (delta: 44.6 MB). Free memory was 133.1 MB in the beginning and 152.2 MB in the end (delta: -19.1 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2020-10-16 12:31:06,591 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 146.3 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 645.46 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 100.9 MB in the beginning and 161.4 MB in the end (delta: -60.5 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 84.47 ms. Allocated memory is still 202.9 MB. Free memory was 161.4 MB in the beginning and 159.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 54.95 ms. Allocated memory is still 202.9 MB. Free memory was 159.5 MB in the beginning and 157.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 462.47 ms. Allocated memory is still 202.9 MB. Free memory was 157.5 MB in the beginning and 133.1 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3531.36 ms. Allocated memory was 202.9 MB in the beginning and 247.5 MB in the end (delta: 44.6 MB). Free memory was 133.1 MB in the beginning and 152.2 MB in the end (delta: -19.1 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 478 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 117 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.3s, 84 PlacesBefore, 35 PlacesAfterwards, 84 TransitionsBefore, 32 TransitionsAfterwards, 886 CoEnabledTransitionPairs, 6 FixpointIterations, 37 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 2 ConcurrentYvCompositions, 3 ChoiceCompositions, 58 TotalNumberOfCompositions, 4129 MoverChecksTotal - PositiveResult [Line: 691]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 699]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 78 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 131 SDtfs, 68 SDslu, 74 SDs, 0 SdLazy, 23 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred 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, 5 MinimizatonAttempts, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 694 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...