/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/ldv-races/race-2_5-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:52:48,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:52:48,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:52:48,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:52:48,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:52:48,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:52:48,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:52:48,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:52:48,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:52:48,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:52:48,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:52:48,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:52:48,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:52:48,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:52:48,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:52:48,685 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:52:48,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:52:48,689 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:52:48,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:52:48,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:52:48,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:52:48,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:52:48,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:52:48,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:52:48,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 13:52:48,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 13:52:48,702 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 13:52:48,703 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 13:52:48,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 13:52:48,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 13:52:48,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:52:48,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:52:48,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:52:48,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:52:48,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:52:48,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:52:48,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:52:48,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:52:48,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:52:48,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:52:48,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:52:48,710 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 13:52:48,731 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:52:48,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:52:48,732 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:52:48,733 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:52:48,733 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:52:48,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:52:48,733 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:52:48,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:52:48,734 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:52:48,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:52:48,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:52:48,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:52:48,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:52:48,735 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:52:48,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:52:48,735 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:52:48,735 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:52:48,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:52:48,735 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:52:48,736 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:52:48,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:52:48,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:52:48,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:52:48,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:52:48,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:52:48,737 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:52:48,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:52:48,737 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:52:48,737 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:52:48,738 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:52:48,738 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:52:49,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:52:49,058 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:52:49,062 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:52:49,063 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:52:49,066 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:52:49,067 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_5-container_of.i [2020-10-16 13:52:49,134 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e6b9576e/9337f66774a446a3bf74404aec867b57/FLAG0c3801239 [2020-10-16 13:52:49,699 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:52:49,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-races/race-2_5-container_of.i [2020-10-16 13:52:49,729 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e6b9576e/9337f66774a446a3bf74404aec867b57/FLAG0c3801239 [2020-10-16 13:52:49,872 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e6b9576e/9337f66774a446a3bf74404aec867b57 [2020-10-16 13:52:49,882 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:52:49,884 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:52:49,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:52:49,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:52:49,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:52:49,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:52:49" (1/1) ... [2020-10-16 13:52:49,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41b1a8af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:52:49, skipping insertion in model container [2020-10-16 13:52:49,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:52:49" (1/1) ... [2020-10-16 13:52:49,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:52:49,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:52:50,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:52:50,746 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:52:50,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:52:51,315 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:52:51,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:52:51 WrapperNode [2020-10-16 13:52:51,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:52:51,317 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:52:51,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:52:51,318 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:52:51,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:52:51" (1/1) ... [2020-10-16 13:52:51,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:52:51" (1/1) ... [2020-10-16 13:52:51,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:52:51,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:52:51,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:52:51,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:52:51,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:52:51" (1/1) ... [2020-10-16 13:52:51,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:52:51" (1/1) ... [2020-10-16 13:52:51,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:52:51" (1/1) ... [2020-10-16 13:52:51,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:52:51" (1/1) ... [2020-10-16 13:52:51,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:52:51" (1/1) ... [2020-10-16 13:52:51,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:52:51" (1/1) ... [2020-10-16 13:52:51,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:52:51" (1/1) ... [2020-10-16 13:52:51,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:52:51,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:52:51,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:52:51,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:52:51,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:52:51" (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 13:52:51,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:52:51,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 13:52:51,569 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 13:52:51,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-16 13:52:51,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:52:51,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:52:51,571 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2020-10-16 13:52:51,572 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2020-10-16 13:52:51,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:52:51,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:52:51,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 13:52:51,575 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 13:52:52,328 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:52:52,329 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-10-16 13:52:52,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:52:52 BoogieIcfgContainer [2020-10-16 13:52:52,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:52:52,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:52:52,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:52:52,342 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:52:52,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:52:49" (1/3) ... [2020-10-16 13:52:52,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a7f63cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:52:52, skipping insertion in model container [2020-10-16 13:52:52,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:52:51" (2/3) ... [2020-10-16 13:52:52,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a7f63cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:52:52, skipping insertion in model container [2020-10-16 13:52:52,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:52:52" (3/3) ... [2020-10-16 13:52:52,346 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2020-10-16 13:52:52,357 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:52:52,358 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:52:52,365 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-10-16 13:52:52,366 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:52:52,399 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,399 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,400 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,400 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,400 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,400 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,401 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,401 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,401 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,401 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,402 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,402 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,402 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,402 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,402 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,403 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,403 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,403 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,403 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,404 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,404 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,404 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,404 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,405 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,405 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,405 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,405 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,406 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,406 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,406 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,407 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,407 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,407 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,407 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,407 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,408 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,408 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,408 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,409 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,409 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,409 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,409 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,410 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,410 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,410 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,410 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,411 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,411 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,411 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,411 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,412 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,412 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,412 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,412 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,412 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,413 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,413 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,413 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,413 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,414 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,414 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,414 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,414 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,415 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,415 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,415 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,415 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,416 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,416 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,416 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,420 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,420 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,420 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,420 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,421 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,421 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,421 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,421 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,422 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,422 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,422 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,422 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,428 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,428 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,428 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,429 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,429 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,429 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,429 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,430 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,430 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,430 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,430 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,431 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:52,440 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-16 13:52:52,454 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-16 13:52:52,475 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:52:52,475 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:52:52,475 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:52:52,475 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:52:52,475 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:52:52,476 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:52:52,476 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:52:52,476 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:52:52,492 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:52:52,493 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 157 transitions, 336 flow [2020-10-16 13:52:52,496 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 157 transitions, 336 flow [2020-10-16 13:52:52,498 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 153 places, 157 transitions, 336 flow [2020-10-16 13:52:52,587 INFO L129 PetriNetUnfolder]: 13/215 cut-off events. [2020-10-16 13:52:52,588 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 13:52:52,594 INFO L80 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 215 events. 13/215 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 443 event pairs, 0 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 97. Up to 4 conditions per place. [2020-10-16 13:52:52,600 INFO L117 LiptonReduction]: Number of co-enabled transitions 4004 [2020-10-16 13:52:52,862 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 13:52:52,884 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 13:52:52,893 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 13:52:52,908 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 13:52:52,909 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-16 13:52:52,910 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:95, output treesize:67 [2020-10-16 13:52:54,945 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 13:52:54,963 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 13:52:54,968 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 13:52:54,989 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 13:52:54,990 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-16 13:52:54,990 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:99, output treesize:71 [2020-10-16 13:52:55,530 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 13:52:55,615 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 13:52:55,621 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 13:52:55,681 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 13:52:55,682 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-16 13:52:55,683 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:148, output treesize:160 [2020-10-16 13:52:56,101 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-16 13:52:56,506 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-16 13:52:56,672 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-16 13:52:56,912 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-16 13:52:57,183 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-16 13:52:57,598 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 120 [2020-10-16 13:52:57,816 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-16 13:52:58,490 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 118 [2020-10-16 13:52:58,819 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-16 13:52:58,835 INFO L132 LiptonReduction]: Checked pairs total: 10131 [2020-10-16 13:52:58,836 INFO L134 LiptonReduction]: Total number of compositions: 167 [2020-10-16 13:52:58,842 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 44 transitions, 110 flow [2020-10-16 13:52:58,880 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 495 states. [2020-10-16 13:52:58,883 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states. [2020-10-16 13:52:58,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-16 13:52:58,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:52:58,889 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-16 13:52:58,890 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:52:58,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:52:58,895 INFO L82 PathProgramCache]: Analyzing trace with hash 17244891, now seen corresponding path program 1 times [2020-10-16 13:52:58,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:52:58,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897877759] [2020-10-16 13:52:58,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:52:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:52:59,301 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 13:52:59,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897877759] [2020-10-16 13:52:59,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:52:59,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:52:59,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [440111863] [2020-10-16 13:52:59,303 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:52:59,306 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:52:59,318 INFO L258 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-10-16 13:52:59,319 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:52:59,322 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:52:59,323 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:52:59,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:52:59,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:52:59,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:52:59,340 INFO L87 Difference]: Start difference. First operand 495 states. Second operand 3 states. [2020-10-16 13:52:59,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:52:59,517 INFO L93 Difference]: Finished difference Result 650 states and 1568 transitions. [2020-10-16 13:52:59,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:52:59,519 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-16 13:52:59,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:52:59,555 INFO L225 Difference]: With dead ends: 650 [2020-10-16 13:52:59,555 INFO L226 Difference]: Without dead ends: 612 [2020-10-16 13:52:59,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 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 13:52:59,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2020-10-16 13:52:59,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 516. [2020-10-16 13:52:59,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2020-10-16 13:52:59,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 1218 transitions. [2020-10-16 13:52:59,682 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 1218 transitions. Word has length 4 [2020-10-16 13:52:59,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:52:59,683 INFO L481 AbstractCegarLoop]: Abstraction has 516 states and 1218 transitions. [2020-10-16 13:52:59,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:52:59,683 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 1218 transitions. [2020-10-16 13:52:59,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-16 13:52:59,684 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:52:59,684 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-16 13:52:59,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:52:59,685 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:52:59,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:52:59,685 INFO L82 PathProgramCache]: Analyzing trace with hash -607545483, now seen corresponding path program 1 times [2020-10-16 13:52:59,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:52:59,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673287539] [2020-10-16 13:52:59,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:52:59,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:52:59,781 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 13:52:59,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673287539] [2020-10-16 13:52:59,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:52:59,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:52:59,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1848211516] [2020-10-16 13:52:59,783 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:52:59,784 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:52:59,785 INFO L258 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-10-16 13:52:59,785 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:52:59,785 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:52:59,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:52:59,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:52:59,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:52:59,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:52:59,788 INFO L87 Difference]: Start difference. First operand 516 states and 1218 transitions. Second operand 4 states. [2020-10-16 13:52:59,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:52:59,921 INFO L93 Difference]: Finished difference Result 671 states and 1561 transitions. [2020-10-16 13:52:59,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:52:59,921 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-10-16 13:52:59,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:52:59,926 INFO L225 Difference]: With dead ends: 671 [2020-10-16 13:52:59,926 INFO L226 Difference]: Without dead ends: 586 [2020-10-16 13:52:59,927 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:52:59,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2020-10-16 13:52:59,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 554. [2020-10-16 13:52:59,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2020-10-16 13:52:59,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 1327 transitions. [2020-10-16 13:52:59,949 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 1327 transitions. Word has length 6 [2020-10-16 13:52:59,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:52:59,949 INFO L481 AbstractCegarLoop]: Abstraction has 554 states and 1327 transitions. [2020-10-16 13:52:59,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:52:59,950 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 1327 transitions. [2020-10-16 13:52:59,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 13:52:59,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:52:59,952 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:52:59,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:52:59,952 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:52:59,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:52:59,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1181960415, now seen corresponding path program 1 times [2020-10-16 13:52:59,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:52:59,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223902609] [2020-10-16 13:52:59,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:52:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:53:00,023 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 13:53:00,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223902609] [2020-10-16 13:53:00,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:53:00,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:53:00,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1457220136] [2020-10-16 13:53:00,025 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:53:00,027 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:53:00,030 INFO L258 McrAutomatonBuilder]: Finished intersection with 15 states and 18 transitions. [2020-10-16 13:53:00,030 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:53:00,059 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:53:00,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:53:00,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:53:00,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:53:00,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:53:00,060 INFO L87 Difference]: Start difference. First operand 554 states and 1327 transitions. Second operand 3 states. [2020-10-16 13:53:00,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:53:00,070 INFO L93 Difference]: Finished difference Result 234 states and 479 transitions. [2020-10-16 13:53:00,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:53:00,071 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-16 13:53:00,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:53:00,073 INFO L225 Difference]: With dead ends: 234 [2020-10-16 13:53:00,073 INFO L226 Difference]: Without dead ends: 234 [2020-10-16 13:53:00,074 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 13:53:00,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-10-16 13:53:00,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2020-10-16 13:53:00,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-10-16 13:53:00,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 479 transitions. [2020-10-16 13:53:00,081 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 479 transitions. Word has length 10 [2020-10-16 13:53:00,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:53:00,081 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 479 transitions. [2020-10-16 13:53:00,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:53:00,082 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 479 transitions. [2020-10-16 13:53:00,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 13:53:00,083 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:53:00,084 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:53:00,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:53:00,084 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:53:00,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:53:00,084 INFO L82 PathProgramCache]: Analyzing trace with hash 998255413, now seen corresponding path program 1 times [2020-10-16 13:53:00,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:53:00,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137851033] [2020-10-16 13:53:00,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:53:00,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:53:00,204 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 13:53:00,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137851033] [2020-10-16 13:53:00,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:53:00,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:53:00,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [848001331] [2020-10-16 13:53:00,205 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:53:00,209 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:53:00,217 INFO L258 McrAutomatonBuilder]: Finished intersection with 22 states and 26 transitions. [2020-10-16 13:53:00,217 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:53:00,218 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:53:00,218 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:53:00,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:53:00,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:53:00,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:53:00,220 INFO L87 Difference]: Start difference. First operand 234 states and 479 transitions. Second operand 3 states. [2020-10-16 13:53:00,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:53:00,300 INFO L93 Difference]: Finished difference Result 279 states and 550 transitions. [2020-10-16 13:53:00,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:53:00,300 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-16 13:53:00,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:53:00,303 INFO L225 Difference]: With dead ends: 279 [2020-10-16 13:53:00,303 INFO L226 Difference]: Without dead ends: 279 [2020-10-16 13:53:00,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 1 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 13:53:00,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-10-16 13:53:00,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 246. [2020-10-16 13:53:00,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-10-16 13:53:00,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 499 transitions. [2020-10-16 13:53:00,313 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 499 transitions. Word has length 16 [2020-10-16 13:53:00,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:53:00,313 INFO L481 AbstractCegarLoop]: Abstraction has 246 states and 499 transitions. [2020-10-16 13:53:00,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:53:00,313 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 499 transitions. [2020-10-16 13:53:00,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 13:53:00,315 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:53:00,315 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:53:00,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 13:53:00,316 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:53:00,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:53:00,316 INFO L82 PathProgramCache]: Analyzing trace with hash 881145203, now seen corresponding path program 1 times [2020-10-16 13:53:00,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:53:00,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573712297] [2020-10-16 13:53:00,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:53:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:53:00,393 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 13:53:00,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573712297] [2020-10-16 13:53:00,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:53:00,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:53:00,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [353562500] [2020-10-16 13:53:00,394 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:53:00,399 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:53:00,406 INFO L258 McrAutomatonBuilder]: Finished intersection with 23 states and 27 transitions. [2020-10-16 13:53:00,406 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:53:00,407 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:53:00,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:53:00,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:53:00,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:53:00,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:53:00,409 INFO L87 Difference]: Start difference. First operand 246 states and 499 transitions. Second operand 3 states. [2020-10-16 13:53:00,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:53:00,470 INFO L93 Difference]: Finished difference Result 283 states and 556 transitions. [2020-10-16 13:53:00,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:53:00,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-16 13:53:00,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:53:00,472 INFO L225 Difference]: With dead ends: 283 [2020-10-16 13:53:00,472 INFO L226 Difference]: Without dead ends: 283 [2020-10-16 13:53:00,473 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 13:53:00,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-10-16 13:53:00,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 258. [2020-10-16 13:53:00,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-10-16 13:53:00,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 527 transitions. [2020-10-16 13:53:00,481 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 527 transitions. Word has length 17 [2020-10-16 13:53:00,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:53:00,481 INFO L481 AbstractCegarLoop]: Abstraction has 258 states and 527 transitions. [2020-10-16 13:53:00,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:53:00,481 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 527 transitions. [2020-10-16 13:53:00,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 13:53:00,482 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:53:00,483 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:53:00,483 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 13:53:00,483 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:53:00,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:53:00,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1369692559, now seen corresponding path program 1 times [2020-10-16 13:53:00,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:53:00,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247008615] [2020-10-16 13:53:00,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:53:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 13:53:00,543 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 13:53:00,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 13:53:00,587 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 13:53:00,625 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 13:53:00,626 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 13:53:00,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 13:53:00,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:53:00 BasicIcfg [2020-10-16 13:53:00,680 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:53:00,682 INFO L168 Benchmark]: Toolchain (without parser) took 10798.23 ms. Allocated memory was 147.3 MB in the beginning and 310.9 MB in the end (delta: 163.6 MB). Free memory was 98.7 MB in the beginning and 180.3 MB in the end (delta: -81.6 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. [2020-10-16 13:53:00,682 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 147.3 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 13:53:00,683 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1432.45 ms. Allocated memory was 147.3 MB in the beginning and 238.0 MB in the end (delta: 90.7 MB). Free memory was 98.5 MB in the beginning and 172.1 MB in the end (delta: -73.7 MB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. [2020-10-16 13:53:00,684 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.88 ms. Allocated memory is still 238.0 MB. Free memory was 172.1 MB in the beginning and 169.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-10-16 13:53:00,685 INFO L168 Benchmark]: Boogie Preprocessor took 47.95 ms. Allocated memory is still 238.0 MB. Free memory was 169.2 MB in the beginning and 166.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-10-16 13:53:00,686 INFO L168 Benchmark]: RCFGBuilder took 854.25 ms. Allocated memory is still 238.0 MB. Free memory was 166.3 MB in the beginning and 116.7 MB in the end (delta: 49.6 MB). Peak memory consumption was 49.6 MB. Max. memory is 7.1 GB. [2020-10-16 13:53:00,687 INFO L168 Benchmark]: TraceAbstraction took 8341.53 ms. Allocated memory was 238.0 MB in the beginning and 310.9 MB in the end (delta: 72.9 MB). Free memory was 116.7 MB in the beginning and 180.3 MB in the end (delta: -63.7 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2020-10-16 13:53:00,692 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 147.3 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1432.45 ms. Allocated memory was 147.3 MB in the beginning and 238.0 MB in the end (delta: 90.7 MB). Free memory was 98.5 MB in the beginning and 172.1 MB in the end (delta: -73.7 MB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 116.88 ms. Allocated memory is still 238.0 MB. Free memory was 172.1 MB in the beginning and 169.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.95 ms. Allocated memory is still 238.0 MB. Free memory was 169.2 MB in the beginning and 166.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 854.25 ms. Allocated memory is still 238.0 MB. Free memory was 166.3 MB in the beginning and 116.7 MB in the end (delta: 49.6 MB). Peak memory consumption was 49.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8341.53 ms. Allocated memory was 238.0 MB in the beginning and 310.9 MB in the end (delta: 72.9 MB). Free memory was 116.7 MB in the beginning and 180.3 MB in the end (delta: -63.7 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 2210 VarBasedMoverChecksPositive, 44 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 94 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.3s, 153 PlacesBefore, 45 PlacesAfterwards, 157 TransitionsBefore, 44 TransitionsAfterwards, 4004 CoEnabledTransitionPairs, 7 FixpointIterations, 66 TrivialSequentialCompositions, 69 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 23 ConcurrentYvCompositions, 5 ChoiceCompositions, 167 TotalNumberOfCompositions, 10131 MoverChecksTotal - CounterExampleResult [Line: 1682]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1683] 0 pthread_t t1,t2; [L1731] 0 return 0; [L1737] 0 int ret = my_drv_init(); [L1738] COND TRUE 0 ret==0 [L1739] 0 int probe_ret; [L1740] 0 struct my_data data; [L1706] 0 struct device *d = &data->dev; [L1708] 0 data->shared.a = 0 [L1709] 0 data->shared.b = 0 [L1710] 0 int res = __VERIFIER_nondet_int(); [L1711] COND FALSE 0 !(\read(res)) [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={6:24}, t1={5:0}, t2={7:0}] [L1696] 1 struct device *dev = (struct device*)arg; [L1697] 1 struct my_data *data; [L1698] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1698] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1700] 1 data->shared.a = 1 VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] [L1701] EXPR 1 data->shared.b VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data->shared.b=0, dev={6:24}, t1={5:0}, t2={7:0}] [L1701] 1 data->shared.b = data->shared.b + 1 [L1703] 1 return 0; [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] [L1696] 2 struct device *dev = (struct device*)arg; [L1697] 2 struct my_data *data; [L1698] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1698] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1715] 0 return 0; [L1741] 0 probe_ret = my_drv_probe(&data) VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] [L1742] COND TRUE 0 probe_ret==0 [L1721] 0 void *status; [L1722] 0 \read(t1) VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] [L1722] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] [L1723] 0 data->shared.a = 3 VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] [L1700] 2 data->shared.a = 1 VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] [L1724] 0 data->shared.b = 3 VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] [L1725] 0 data->shared.a [L1682] COND TRUE 0 !expression [L1682] 0 __VERIFIER_error() VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 132 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.4s, HoareTripleCheckerStatistics: 183 SDtfs, 81 SDslu, 100 SDs, 0 SdLazy, 173 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=554occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 186 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1470 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 incorrect! Received shutdown request...