/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.epf -i ../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:42:00,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:42:00,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:42:00,586 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:42:00,587 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:42:00,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:42:00,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:42:00,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:42:00,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:42:00,610 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:42:00,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:42:00,613 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:42:00,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:42:00,616 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:42:00,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:42:00,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:42:00,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:42:00,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:42:00,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:42:00,633 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:42:00,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:42:00,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:42:00,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:42:00,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:42:00,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 11:42:00,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:42:00,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:42:00,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:42:00,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:42:00,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:42:00,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:42:00,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:42:00,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:42:00,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:42:00,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:42:00,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:42:00,658 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.epf [2020-10-16 11:42:00,701 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:42:00,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:42:00,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:42:00,704 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:42:00,704 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:42:00,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:42:00,704 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:42:00,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:42:00,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:42:00,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:42:00,706 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:42:00,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:42:00,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:42:00,707 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:42:00,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:42:00,707 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:42:00,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:42:00,708 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:42:00,708 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:42:00,708 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:42:00,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:42:00,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:42:00,709 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:42:00,709 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 11:42:00,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:42:00,709 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:42:00,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:42:00,709 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 11:42:00,710 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:42:00,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:42:01,006 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:42:01,010 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:42:01,011 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:42:01,011 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:42:01,012 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2020-10-16 11:42:01,080 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5764206be/e752d6f0d4444da0aec78cb8a4d56477/FLAGc3c596322 [2020-10-16 11:42:01,598 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:42:01,598 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2020-10-16 11:42:01,615 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5764206be/e752d6f0d4444da0aec78cb8a4d56477/FLAGc3c596322 [2020-10-16 11:42:01,896 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5764206be/e752d6f0d4444da0aec78cb8a4d56477 [2020-10-16 11:42:01,905 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:42:01,907 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:42:01,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:42:01,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:42:01,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:42:01,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:42:01" (1/1) ... [2020-10-16 11:42:01,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@134bd179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:42:01, skipping insertion in model container [2020-10-16 11:42:01,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:42:01" (1/1) ... [2020-10-16 11:42:01,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:42:01,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:42:02,428 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:42:02,444 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:42:02,488 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:42:02,570 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:42:02,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:42:02 WrapperNode [2020-10-16 11:42:02,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:42:02,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:42:02,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:42:02,572 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:42:02,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:42:02" (1/1) ... [2020-10-16 11:42:02,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:42:02" (1/1) ... [2020-10-16 11:42:02,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:42:02,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:42:02,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:42:02,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:42:02,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:42:02" (1/1) ... [2020-10-16 11:42:02,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:42:02" (1/1) ... [2020-10-16 11:42:02,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:42:02" (1/1) ... [2020-10-16 11:42:02,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:42:02" (1/1) ... [2020-10-16 11:42:02,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:42:02" (1/1) ... [2020-10-16 11:42:02,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:42:02" (1/1) ... [2020-10-16 11:42:02,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:42:02" (1/1) ... [2020-10-16 11:42:02,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:42:02,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:42:02,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:42:02,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:42:02,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:42:02" (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 11:42:02,733 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2020-10-16 11:42:02,733 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2020-10-16 11:42:02,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 11:42:02,733 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2020-10-16 11:42:02,734 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2020-10-16 11:42:02,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:42:02,734 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 11:42:02,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:42:02,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:42:02,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 11:42:02,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:42:02,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:42:02,738 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 11:42:03,145 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:42:03,146 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-16 11:42:03,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:42:03 BoogieIcfgContainer [2020-10-16 11:42:03,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:42:03,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:42:03,150 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:42:03,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:42:03,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:42:01" (1/3) ... [2020-10-16 11:42:03,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ada4ab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:42:03, skipping insertion in model container [2020-10-16 11:42:03,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:42:02" (2/3) ... [2020-10-16 11:42:03,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ada4ab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:42:03, skipping insertion in model container [2020-10-16 11:42:03,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:42:03" (3/3) ... [2020-10-16 11:42:03,157 INFO L111 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2020-10-16 11:42:03,169 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:42:03,170 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:42:03,178 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 11:42:03,179 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:42:03,208 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,209 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,209 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,210 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,210 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,210 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,211 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,211 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,212 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,212 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,213 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,213 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,213 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,214 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,214 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,214 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,215 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,215 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,219 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,219 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,220 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,220 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,220 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,221 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,227 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,227 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,228 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,228 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,228 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:42:03,240 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-16 11:42:03,254 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 11:42:03,274 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:42:03,274 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:42:03,274 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 11:42:03,274 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:42:03,274 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:42:03,275 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:42:03,275 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:42:03,275 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:42:03,289 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 11:42:03,289 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 84 transitions, 190 flow [2020-10-16 11:42:03,292 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 84 transitions, 190 flow [2020-10-16 11:42:03,293 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 84 transitions, 190 flow [2020-10-16 11:42:03,336 INFO L129 PetriNetUnfolder]: 6/84 cut-off events. [2020-10-16 11:42:03,336 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 11:42:03,342 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 11:42:03,345 INFO L117 LiptonReduction]: Number of co-enabled transitions 886 [2020-10-16 11:42:04,865 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-16 11:42:05,381 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 112 [2020-10-16 11:42:05,584 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-16 11:42:05,594 INFO L132 LiptonReduction]: Checked pairs total: 4129 [2020-10-16 11:42:05,594 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-16 11:42:05,601 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 32 transitions, 86 flow [2020-10-16 11:42:05,622 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 218 states. [2020-10-16 11:42:05,625 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states. [2020-10-16 11:42:05,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-16 11:42:05,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:42:05,632 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 11:42:05,633 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 11:42:05,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:42:05,639 INFO L82 PathProgramCache]: Analyzing trace with hash 293912045, now seen corresponding path program 1 times [2020-10-16 11:42:05,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:42:05,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948212003] [2020-10-16 11:42:05,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:42:05,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:42:05,837 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 11:42:05,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948212003] [2020-10-16 11:42:05,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:42:05,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:42:05,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224633834] [2020-10-16 11:42:05,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:42:05,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:42:05,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:42:05,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:42:05,863 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 3 states. [2020-10-16 11:42:05,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:42:05,902 INFO L93 Difference]: Finished difference Result 218 states and 483 transitions. [2020-10-16 11:42:05,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:42:05,904 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-16 11:42:05,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:42:05,930 INFO L225 Difference]: With dead ends: 218 [2020-10-16 11:42:05,931 INFO L226 Difference]: Without dead ends: 188 [2020-10-16 11:42:05,932 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 11:42:05,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-10-16 11:42:05,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2020-10-16 11:42:05,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-16 11:42:05,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 412 transitions. [2020-10-16 11:42:06,003 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 412 transitions. Word has length 5 [2020-10-16 11:42:06,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:42:06,004 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 412 transitions. [2020-10-16 11:42:06,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:42:06,004 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 412 transitions. [2020-10-16 11:42:06,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 11:42:06,005 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:42:06,005 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:42:06,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:42:06,006 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 11:42:06,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:42:06,006 INFO L82 PathProgramCache]: Analyzing trace with hash -2033676981, now seen corresponding path program 1 times [2020-10-16 11:42:06,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:42:06,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218148305] [2020-10-16 11:42:06,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:42:06,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:42:06,066 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 11:42:06,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218148305] [2020-10-16 11:42:06,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:42:06,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:42:06,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033147142] [2020-10-16 11:42:06,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:42:06,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:42:06,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:42:06,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:42:06,070 INFO L87 Difference]: Start difference. First operand 188 states and 412 transitions. Second operand 3 states. [2020-10-16 11:42:06,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:42:06,095 INFO L93 Difference]: Finished difference Result 207 states and 431 transitions. [2020-10-16 11:42:06,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:42:06,096 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 11:42:06,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:42:06,099 INFO L225 Difference]: With dead ends: 207 [2020-10-16 11:42:06,099 INFO L226 Difference]: Without dead ends: 175 [2020-10-16 11:42:06,100 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 11:42:06,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-10-16 11:42:06,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 157. [2020-10-16 11:42:06,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-10-16 11:42:06,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 339 transitions. [2020-10-16 11:42:06,129 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 339 transitions. Word has length 8 [2020-10-16 11:42:06,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:42:06,134 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 339 transitions. [2020-10-16 11:42:06,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:42:06,135 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 339 transitions. [2020-10-16 11:42:06,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 11:42:06,136 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:42:06,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:42:06,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:42:06,136 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 11:42:06,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:42:06,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1494763716, now seen corresponding path program 1 times [2020-10-16 11:42:06,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:42:06,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310773140] [2020-10-16 11:42:06,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:42:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:42:06,224 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 11:42:06,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310773140] [2020-10-16 11:42:06,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:42:06,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:42:06,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424727730] [2020-10-16 11:42:06,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:42:06,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:42:06,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:42:06,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:42:06,227 INFO L87 Difference]: Start difference. First operand 157 states and 339 transitions. Second operand 3 states. [2020-10-16 11:42:06,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:42:06,243 INFO L93 Difference]: Finished difference Result 154 states and 316 transitions. [2020-10-16 11:42:06,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:42:06,243 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 11:42:06,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:42:06,245 INFO L225 Difference]: With dead ends: 154 [2020-10-16 11:42:06,245 INFO L226 Difference]: Without dead ends: 100 [2020-10-16 11:42:06,245 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 11:42:06,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-10-16 11:42:06,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-10-16 11:42:06,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-16 11:42:06,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 189 transitions. [2020-10-16 11:42:06,254 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 189 transitions. Word has length 8 [2020-10-16 11:42:06,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:42:06,254 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 189 transitions. [2020-10-16 11:42:06,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:42:06,255 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 189 transitions. [2020-10-16 11:42:06,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 11:42:06,256 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:42:06,256 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:42:06,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:42:06,256 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 11:42:06,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:42:06,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1061881055, now seen corresponding path program 1 times [2020-10-16 11:42:06,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:42:06,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929817327] [2020-10-16 11:42:06,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:42:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:42:06,306 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 11:42:06,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929817327] [2020-10-16 11:42:06,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:42:06,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:42:06,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432487773] [2020-10-16 11:42:06,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:42:06,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:42:06,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:42:06,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:42:06,308 INFO L87 Difference]: Start difference. First operand 100 states and 189 transitions. Second operand 3 states. [2020-10-16 11:42:06,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:42:06,316 INFO L93 Difference]: Finished difference Result 100 states and 183 transitions. [2020-10-16 11:42:06,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:42:06,317 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-16 11:42:06,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:42:06,318 INFO L225 Difference]: With dead ends: 100 [2020-10-16 11:42:06,318 INFO L226 Difference]: Without dead ends: 82 [2020-10-16 11:42:06,319 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:42:06,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-16 11:42:06,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-10-16 11:42:06,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-16 11:42:06,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 147 transitions. [2020-10-16 11:42:06,325 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 147 transitions. Word has length 13 [2020-10-16 11:42:06,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:42:06,325 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 147 transitions. [2020-10-16 11:42:06,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:42:06,326 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 147 transitions. [2020-10-16 11:42:06,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 11:42:06,326 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:42:06,327 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:42:06,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 11:42:06,327 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 11:42:06,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:42:06,327 INFO L82 PathProgramCache]: Analyzing trace with hash -234834685, now seen corresponding path program 2 times [2020-10-16 11:42:06,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:42:06,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108999853] [2020-10-16 11:42:06,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:42:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:42:06,383 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 11:42:06,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108999853] [2020-10-16 11:42:06,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:42:06,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:42:06,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170740994] [2020-10-16 11:42:06,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:42:06,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:42:06,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:42:06,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:42:06,388 INFO L87 Difference]: Start difference. First operand 82 states and 147 transitions. Second operand 4 states. [2020-10-16 11:42:06,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:42:06,408 INFO L93 Difference]: Finished difference Result 26 states and 43 transitions. [2020-10-16 11:42:06,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:42:06,408 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-16 11:42:06,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:42:06,409 INFO L225 Difference]: With dead ends: 26 [2020-10-16 11:42:06,409 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 11:42:06,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 11:42:06,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 11:42:06,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 11:42:06,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 11:42:06,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 11:42:06,410 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-16 11:42:06,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:42:06,411 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 11:42:06,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:42:06,411 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 11:42:06,411 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 11:42:06,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 11:42:06,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:42:06 BasicIcfg [2020-10-16 11:42:06,415 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:42:06,417 INFO L168 Benchmark]: Toolchain (without parser) took 4510.00 ms. Allocated memory was 141.0 MB in the beginning and 246.4 MB in the end (delta: 105.4 MB). Free memory was 102.5 MB in the beginning and 147.4 MB in the end (delta: -45.0 MB). Peak memory consumption was 60.4 MB. Max. memory is 7.1 GB. [2020-10-16 11:42:06,418 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 11:42:06,419 INFO L168 Benchmark]: CACSL2BoogieTranslator took 662.56 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.2 MB in the beginning and 161.4 MB in the end (delta: -59.1 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-10-16 11:42:06,420 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.84 ms. Allocated memory is still 204.5 MB. Free memory was 161.4 MB in the beginning and 159.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-16 11:42:06,420 INFO L168 Benchmark]: Boogie Preprocessor took 37.83 ms. Allocated memory is still 204.5 MB. Free memory was 159.3 MB in the beginning and 157.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 11:42:06,421 INFO L168 Benchmark]: RCFGBuilder took 488.46 ms. Allocated memory is still 204.5 MB. Free memory was 157.4 MB in the beginning and 133.0 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-10-16 11:42:06,422 INFO L168 Benchmark]: TraceAbstraction took 3265.78 ms. Allocated memory was 204.5 MB in the beginning and 246.4 MB in the end (delta: 41.9 MB). Free memory was 132.4 MB in the beginning and 147.4 MB in the end (delta: -15.0 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2020-10-16 11:42:06,426 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 662.56 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.2 MB in the beginning and 161.4 MB in the end (delta: -59.1 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.84 ms. Allocated memory is still 204.5 MB. Free memory was 161.4 MB in the beginning and 159.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 37.83 ms. Allocated memory is still 204.5 MB. Free memory was 159.3 MB in the beginning and 157.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 488.46 ms. Allocated memory is still 204.5 MB. Free memory was 157.4 MB in the beginning and 133.0 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3265.78 ms. Allocated memory was 204.5 MB in the beginning and 246.4 MB in the end (delta: 41.9 MB). Free memory was 132.4 MB in the beginning and 147.4 MB in the end (delta: -15.0 MB). Peak memory consumption was 26.9 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: 3.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 131 SDtfs, 72 SDslu, 74 SDs, 0 SdLazy, 23 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 7 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...