/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_24-sound_lock_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:19:26,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:19:26,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:19:26,708 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:19:26,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:19:26,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:19:26,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:19:26,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:19:26,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:19:26,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:19:26,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:19:26,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:19:26,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:19:26,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:19:26,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:19:26,737 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:19:26,738 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:19:26,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:19:26,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:19:26,748 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:19:26,750 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:19:26,751 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:19:26,752 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:19:26,753 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:19:26,765 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-21 22:19:26,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:19:26,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:19:26,778 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:19:26,779 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:19:26,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:19:26,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:19:26,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:19:26,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:19:26,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:19:26,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:19:26,785 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:19:26,787 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-21 22:19:26,811 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:19:26,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:19:26,813 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:19:26,813 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:19:26,813 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:19:26,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:19:26,813 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:19:26,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:19:26,814 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:19:26,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:19:26,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:19:26,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:19:26,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:19:26,815 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:19:26,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:19:26,815 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:19:26,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:19:26,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:19:26,816 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:19:26,816 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:19:26,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:19:26,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:19:26,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:19:26,817 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 22:19:26,817 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:19:26,817 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:19:26,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:19:26,817 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:19:26,818 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 22:19:26,818 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 22:19:27,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:19:27,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:19:27,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:19:27,154 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:19:27,154 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:19:27,155 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_24-sound_lock_racing.i [2020-10-21 22:19:27,219 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f49a02da7/d2b8bbc33c9649b39233ea27cf596244/FLAG76a850f10 [2020-10-21 22:19:27,800 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:19:27,801 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_24-sound_lock_racing.i [2020-10-21 22:19:27,815 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f49a02da7/d2b8bbc33c9649b39233ea27cf596244/FLAG76a850f10 [2020-10-21 22:19:28,068 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f49a02da7/d2b8bbc33c9649b39233ea27cf596244 [2020-10-21 22:19:28,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:19:28,084 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:19:28,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:19:28,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:19:28,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:19:28,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:19:28" (1/1) ... [2020-10-21 22:19:28,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@400ae125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:19:28, skipping insertion in model container [2020-10-21 22:19:28,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:19:28" (1/1) ... [2020-10-21 22:19:28,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:19:28,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:19:28,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:19:28,681 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:19:28,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:19:28,842 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:19:28,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:19:28 WrapperNode [2020-10-21 22:19:28,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:19:28,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:19:28,844 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:19:28,844 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:19:28,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:19:28" (1/1) ... [2020-10-21 22:19:28,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:19:28" (1/1) ... [2020-10-21 22:19:28,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:19:28,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:19:28,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:19:28,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:19:28,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:19:28" (1/1) ... [2020-10-21 22:19:28,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:19:28" (1/1) ... [2020-10-21 22:19:28,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:19:28" (1/1) ... [2020-10-21 22:19:28,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:19:28" (1/1) ... [2020-10-21 22:19:28,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:19:28" (1/1) ... [2020-10-21 22:19:28,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:19:28" (1/1) ... [2020-10-21 22:19:28,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:19:28" (1/1) ... [2020-10-21 22:19:28,929 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:19:28,930 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:19:28,930 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:19:28,930 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:19:28,931 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:19:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:19:29,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-21 22:19:29,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:19:29,003 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-21 22:19:29,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:19:29,003 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2020-10-21 22:19:29,003 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2020-10-21 22:19:29,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:19:29,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:19:29,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:19:29,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:19:29,006 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 22:19:29,462 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:19:29,462 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-21 22:19:29,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:19:29 BoogieIcfgContainer [2020-10-21 22:19:29,465 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:19:29,466 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:19:29,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:19:29,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:19:29,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:19:28" (1/3) ... [2020-10-21 22:19:29,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7988fb92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:19:29, skipping insertion in model container [2020-10-21 22:19:29,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:19:28" (2/3) ... [2020-10-21 22:19:29,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7988fb92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:19:29, skipping insertion in model container [2020-10-21 22:19:29,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:19:29" (3/3) ... [2020-10-21 22:19:29,474 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_24-sound_lock_racing.i [2020-10-21 22:19:29,485 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:19:29,486 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:19:29,493 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 22:19:29,494 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:19:29,522 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,522 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,522 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,523 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,523 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,523 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,524 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,524 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,524 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,525 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,525 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,525 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,526 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,526 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,526 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,527 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,527 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,527 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,531 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,532 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,532 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,532 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,532 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,532 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,533 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,533 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,533 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:29,544 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-10-21 22:19:29,558 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-21 22:19:29,579 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:19:29,580 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:19:29,580 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:19:29,580 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:19:29,580 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:19:29,580 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:19:29,580 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:19:29,580 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:19:29,595 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:19:29,598 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 111 transitions, 230 flow [2020-10-21 22:19:29,601 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 111 transitions, 230 flow [2020-10-21 22:19:29,603 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 100 places, 111 transitions, 230 flow [2020-10-21 22:19:29,668 INFO L129 PetriNetUnfolder]: 20/146 cut-off events. [2020-10-21 22:19:29,668 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-21 22:19:29,675 INFO L80 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 146 events. 20/146 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 357 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 72. Up to 4 conditions per place. [2020-10-21 22:19:29,680 INFO L116 LiptonReduction]: Number of co-enabled transitions 2240 [2020-10-21 22:19:31,736 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-21 22:19:32,733 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 130 [2020-10-21 22:19:32,981 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-21 22:19:33,885 WARN L193 SmtUtils]: Spent 896.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 152 [2020-10-21 22:19:34,345 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-21 22:19:34,355 INFO L131 LiptonReduction]: Checked pairs total: 3828 [2020-10-21 22:19:34,356 INFO L133 LiptonReduction]: Total number of compositions: 105 [2020-10-21 22:19:34,363 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 33 transitions, 74 flow [2020-10-21 22:19:34,379 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 132 states. [2020-10-21 22:19:34,382 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states. [2020-10-21 22:19:34,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 22:19:34,389 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:19:34,389 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 22:19:34,390 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:19:34,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:19:34,394 INFO L82 PathProgramCache]: Analyzing trace with hash 13710550, now seen corresponding path program 1 times [2020-10-21 22:19:34,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:19:34,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342395669] [2020-10-21 22:19:34,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:19:34,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:19:34,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:19:34,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342395669] [2020-10-21 22:19:34,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:19:34,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 22:19:34,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976905663] [2020-10-21 22:19:34,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:19:34,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:19:34,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:19:34,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:19:34,636 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 3 states. [2020-10-21 22:19:34,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:19:34,683 INFO L93 Difference]: Finished difference Result 130 states and 224 transitions. [2020-10-21 22:19:34,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:19:34,685 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-21 22:19:34,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:19:34,696 INFO L225 Difference]: With dead ends: 130 [2020-10-21 22:19:34,696 INFO L226 Difference]: Without dead ends: 69 [2020-10-21 22:19:34,698 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:19:34,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-21 22:19:34,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-21 22:19:34,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-21 22:19:34,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 118 transitions. [2020-10-21 22:19:34,741 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 118 transitions. Word has length 4 [2020-10-21 22:19:34,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:19:34,742 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 118 transitions. [2020-10-21 22:19:34,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:19:34,742 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 118 transitions. [2020-10-21 22:19:34,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-21 22:19:34,743 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:19:34,743 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-10-21 22:19:34,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:19:34,743 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:19:34,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:19:34,744 INFO L82 PathProgramCache]: Analyzing trace with hash 269215613, now seen corresponding path program 1 times [2020-10-21 22:19:34,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:19:34,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582426697] [2020-10-21 22:19:34,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:19:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:19:34,791 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:19:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:19:34,828 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:19:34,876 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 22:19:34,876 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 22:19:34,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:19:34,885 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-21 22:19:34,886 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 22:19:34,887 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-21 22:19:34,903 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,903 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,904 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,904 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,904 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,904 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,904 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,905 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,905 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,905 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,905 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,905 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,906 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,906 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,906 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,906 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,906 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,907 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,909 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,909 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,909 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,909 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,909 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,910 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,910 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,910 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,911 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,911 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,911 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,912 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,912 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,912 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,912 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,912 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,913 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,913 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,915 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,915 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,915 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,916 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,916 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,916 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,916 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,916 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,917 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,920 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,921 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,921 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,921 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,921 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,921 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,922 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,922 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,922 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:34,925 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2020-10-21 22:19:34,925 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-21 22:19:34,926 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:19:34,926 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:19:34,926 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:19:34,926 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:19:34,926 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:19:34,926 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:19:34,926 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:19:34,927 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:19:34,929 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:19:34,931 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 141 transitions, 300 flow [2020-10-21 22:19:34,932 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 141 transitions, 300 flow [2020-10-21 22:19:34,932 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 125 places, 141 transitions, 300 flow [2020-10-21 22:19:35,025 INFO L129 PetriNetUnfolder]: 35/234 cut-off events. [2020-10-21 22:19:35,025 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2020-10-21 22:19:35,030 INFO L80 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 234 events. 35/234 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 708 event pairs, 0 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 148. Up to 8 conditions per place. [2020-10-21 22:19:35,040 INFO L116 LiptonReduction]: Number of co-enabled transitions 6664 [2020-10-21 22:19:38,012 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-21 22:19:38,126 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-10-21 22:19:38,409 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 96 [2020-10-21 22:19:38,550 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-21 22:19:39,523 WARN L193 SmtUtils]: Spent 958.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2020-10-21 22:19:39,957 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-21 22:19:39,979 INFO L131 LiptonReduction]: Checked pairs total: 15378 [2020-10-21 22:19:39,979 INFO L133 LiptonReduction]: Total number of compositions: 123 [2020-10-21 22:19:39,980 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 56 transitions, 130 flow [2020-10-21 22:19:40,106 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2113 states. [2020-10-21 22:19:40,107 INFO L276 IsEmpty]: Start isEmpty. Operand 2113 states. [2020-10-21 22:19:40,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 22:19:40,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:19:40,108 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 22:19:40,108 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:19:40,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:19:40,109 INFO L82 PathProgramCache]: Analyzing trace with hash 22777051, now seen corresponding path program 1 times [2020-10-21 22:19:40,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:19:40,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034817063] [2020-10-21 22:19:40,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:19:40,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:19:40,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:19:40,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034817063] [2020-10-21 22:19:40,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:19:40,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 22:19:40,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492948240] [2020-10-21 22:19:40,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:19:40,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:19:40,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:19:40,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:19:40,213 INFO L87 Difference]: Start difference. First operand 2113 states. Second operand 3 states. [2020-10-21 22:19:40,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:19:40,278 INFO L93 Difference]: Finished difference Result 2816 states and 7346 transitions. [2020-10-21 22:19:40,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:19:40,279 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-21 22:19:40,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:19:40,292 INFO L225 Difference]: With dead ends: 2816 [2020-10-21 22:19:40,292 INFO L226 Difference]: Without dead ends: 1209 [2020-10-21 22:19:40,293 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:19:40,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2020-10-21 22:19:40,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1209. [2020-10-21 22:19:40,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1209 states. [2020-10-21 22:19:40,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 3199 transitions. [2020-10-21 22:19:40,407 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 3199 transitions. Word has length 4 [2020-10-21 22:19:40,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:19:40,408 INFO L481 AbstractCegarLoop]: Abstraction has 1209 states and 3199 transitions. [2020-10-21 22:19:40,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:19:40,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 3199 transitions. [2020-10-21 22:19:40,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 22:19:40,414 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:19:40,414 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2020-10-21 22:19:40,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:19:40,415 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:19:40,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:19:40,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1641572551, now seen corresponding path program 1 times [2020-10-21 22:19:40,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:19:40,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991854284] [2020-10-21 22:19:40,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:19:40,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:19:40,456 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:19:40,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:19:40,475 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:19:40,482 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 22:19:40,482 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 22:19:40,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 22:19:40,483 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-21 22:19:40,483 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 22:19:40,484 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-21 22:19:40,492 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,493 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,493 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,493 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,493 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,493 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,494 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,494 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,494 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,494 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,494 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,494 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,495 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,495 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,495 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,495 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,495 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,496 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,496 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,496 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,496 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,496 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,497 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,497 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,497 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,497 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,497 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,498 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,498 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,498 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,498 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,498 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,498 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,499 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,499 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,499 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,499 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,500 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,500 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,500 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,500 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,500 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,500 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,501 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,501 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,501 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,501 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,501 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,501 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,502 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,502 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,502 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,502 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,502 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,503 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,503 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,503 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,504 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,504 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,504 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,504 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,504 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,504 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,506 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,507 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,507 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,507 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,507 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,507 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,507 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,508 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,508 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,509 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,509 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,510 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,510 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,510 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,510 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,510 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,510 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,511 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:40,514 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2020-10-21 22:19:40,515 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-21 22:19:40,515 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:19:40,515 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:19:40,515 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:19:40,515 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:19:40,515 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:19:40,516 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:19:40,516 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:19:40,516 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:19:40,518 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:19:40,518 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 171 transitions, 372 flow [2020-10-21 22:19:40,518 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 171 transitions, 372 flow [2020-10-21 22:19:40,518 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 150 places, 171 transitions, 372 flow [2020-10-21 22:19:40,568 INFO L129 PetriNetUnfolder]: 55/353 cut-off events. [2020-10-21 22:19:40,568 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2020-10-21 22:19:40,574 INFO L80 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 353 events. 55/353 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1241 event pairs, 1 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 242. Up to 16 conditions per place. [2020-10-21 22:19:40,592 INFO L116 LiptonReduction]: Number of co-enabled transitions 12600 [2020-10-21 22:19:43,384 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-10-21 22:19:43,757 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 11, 1] term [2020-10-21 22:19:43,758 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:19:43,926 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2020-10-21 22:19:44,716 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 113 [2020-10-21 22:19:44,913 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-21 22:19:46,100 WARN L193 SmtUtils]: Spent 980.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 150 [2020-10-21 22:19:46,628 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-21 22:19:46,671 INFO L131 LiptonReduction]: Checked pairs total: 29696 [2020-10-21 22:19:46,671 INFO L133 LiptonReduction]: Total number of compositions: 145 [2020-10-21 22:19:46,672 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 58 places, 75 transitions, 180 flow [2020-10-21 22:19:49,401 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 26221 states. [2020-10-21 22:19:49,401 INFO L276 IsEmpty]: Start isEmpty. Operand 26221 states. [2020-10-21 22:19:49,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 22:19:49,402 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:19:49,402 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 22:19:49,402 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:19:49,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:19:49,403 INFO L82 PathProgramCache]: Analyzing trace with hash 33424770, now seen corresponding path program 1 times [2020-10-21 22:19:49,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:19:49,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078173686] [2020-10-21 22:19:49,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:19:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:19:49,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:19:49,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078173686] [2020-10-21 22:19:49,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:19:49,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 22:19:49,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575059504] [2020-10-21 22:19:49,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:19:49,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:19:49,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:19:49,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:19:49,433 INFO L87 Difference]: Start difference. First operand 26221 states. Second operand 3 states. [2020-10-21 22:19:50,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:19:50,089 INFO L93 Difference]: Finished difference Result 26158 states and 92705 transitions. [2020-10-21 22:19:50,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:19:50,090 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-21 22:19:50,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:19:51,284 INFO L225 Difference]: With dead ends: 26158 [2020-10-21 22:19:51,285 INFO L226 Difference]: Without dead ends: 14764 [2020-10-21 22:19:51,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:19:51,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14764 states. [2020-10-21 22:19:52,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14764 to 14764. [2020-10-21 22:19:52,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14764 states. [2020-10-21 22:19:52,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14764 states to 14764 states and 52547 transitions. [2020-10-21 22:19:52,101 INFO L78 Accepts]: Start accepts. Automaton has 14764 states and 52547 transitions. Word has length 4 [2020-10-21 22:19:52,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:19:52,103 INFO L481 AbstractCegarLoop]: Abstraction has 14764 states and 52547 transitions. [2020-10-21 22:19:52,103 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:19:52,104 INFO L276 IsEmpty]: Start isEmpty. Operand 14764 states and 52547 transitions. [2020-10-21 22:19:52,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 22:19:52,111 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:19:52,111 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:19:52,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 22:19:52,111 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:19:52,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:19:52,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1962932749, now seen corresponding path program 1 times [2020-10-21 22:19:52,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:19:52,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274322418] [2020-10-21 22:19:52,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:19:52,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:19:52,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:19:52,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274322418] [2020-10-21 22:19:52,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988054854] [2020-10-21 22:19:52,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:19:52,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:19:52,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-21 22:19:52,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:19:52,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:19:52,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:19:52,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2020-10-21 22:19:52,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761399401] [2020-10-21 22:19:52,565 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:19:52,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:19:52,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:19:52,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:19:52,566 INFO L87 Difference]: Start difference. First operand 14764 states and 52547 transitions. Second operand 4 states. [2020-10-21 22:19:52,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:19:52,907 INFO L93 Difference]: Finished difference Result 14733 states and 52488 transitions. [2020-10-21 22:19:52,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:19:52,908 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-21 22:19:52,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:19:52,982 INFO L225 Difference]: With dead ends: 14733 [2020-10-21 22:19:52,982 INFO L226 Difference]: Without dead ends: 14733 [2020-10-21 22:19:52,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:19:53,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14733 states. [2020-10-21 22:19:53,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14733 to 14733. [2020-10-21 22:19:53,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14733 states. [2020-10-21 22:19:54,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14733 states to 14733 states and 52488 transitions. [2020-10-21 22:19:54,039 INFO L78 Accepts]: Start accepts. Automaton has 14733 states and 52488 transitions. Word has length 13 [2020-10-21 22:19:54,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:19:54,040 INFO L481 AbstractCegarLoop]: Abstraction has 14733 states and 52488 transitions. [2020-10-21 22:19:54,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:19:54,040 INFO L276 IsEmpty]: Start isEmpty. Operand 14733 states and 52488 transitions. [2020-10-21 22:19:54,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 22:19:54,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:19:54,046 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2020-10-21 22:19:54,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-10-21 22:19:54,256 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:19:54,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:19:54,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1457855643, now seen corresponding path program 1 times [2020-10-21 22:19:54,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:19:54,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957207549] [2020-10-21 22:19:54,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:19:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:19:54,294 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:19:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:19:54,327 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:19:54,343 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 22:19:54,343 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 22:19:54,343 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 22:19:54,344 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-21 22:19:54,344 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 22:19:54,344 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-21 22:19:54,354 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,355 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,355 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,355 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,355 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,355 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,356 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,356 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,356 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,356 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,356 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,356 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,356 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,357 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,357 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,357 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,357 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,357 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,358 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,358 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,358 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,358 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,358 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,358 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,359 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,359 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,359 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,359 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,359 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,359 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,360 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,360 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,360 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,360 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,360 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,360 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,361 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,361 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,361 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,361 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,361 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,361 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,362 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,362 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,362 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,362 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,362 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,363 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,363 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,363 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,363 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,363 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,364 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,364 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,364 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,364 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,364 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,365 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,365 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,365 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,365 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,365 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,365 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,366 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,366 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,366 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,366 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,366 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,366 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,367 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,367 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,367 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,368 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,368 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,368 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,368 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,368 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,368 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,369 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,369 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,369 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,370 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,371 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,371 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,371 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,371 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,371 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,371 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,371 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,372 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,373 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,373 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,373 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,374 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,374 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,374 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,374 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,374 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,374 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,376 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,376 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,376 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,376 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,376 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,376 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,377 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,377 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,377 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:19:54,380 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-21 22:19:54,381 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-21 22:19:54,381 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:19:54,381 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:19:54,381 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:19:54,382 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:19:54,382 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:19:54,382 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:19:54,382 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:19:54,382 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:19:54,384 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:19:54,384 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 175 places, 201 transitions, 446 flow [2020-10-21 22:19:54,384 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 175 places, 201 transitions, 446 flow [2020-10-21 22:19:54,384 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 175 places, 201 transitions, 446 flow [2020-10-21 22:19:54,478 INFO L129 PetriNetUnfolder]: 87/536 cut-off events. [2020-10-21 22:19:54,478 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2020-10-21 22:19:54,486 INFO L80 FinitePrefix]: Finished finitePrefix Result has 591 conditions, 536 events. 87/536 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2106 event pairs, 6 based on Foata normal form. 0/444 useless extension candidates. Maximal degree in co-relation 373. Up to 32 conditions per place. [2020-10-21 22:19:54,517 INFO L116 LiptonReduction]: Number of co-enabled transitions 20272 [2020-10-21 22:19:56,348 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-10-21 22:19:58,223 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2020-10-21 22:19:58,451 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-21 22:19:59,528 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 116 [2020-10-21 22:19:59,743 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-21 22:20:00,763 WARN L193 SmtUtils]: Spent 856.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 150 [2020-10-21 22:20:01,223 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-21 22:20:01,274 INFO L131 LiptonReduction]: Checked pairs total: 48993 [2020-10-21 22:20:01,275 INFO L133 LiptonReduction]: Total number of compositions: 166 [2020-10-21 22:20:01,275 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 94 transitions, 232 flow [2020-10-21 22:23:32,441 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 325657 states. [2020-10-21 22:23:32,441 INFO L276 IsEmpty]: Start isEmpty. Operand 325657 states. [2020-10-21 22:23:32,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 22:23:32,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:23:32,442 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 22:23:32,442 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:23:32,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:23:32,443 INFO L82 PathProgramCache]: Analyzing trace with hash 45598323, now seen corresponding path program 1 times [2020-10-21 22:23:32,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:23:32,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644292413] [2020-10-21 22:23:32,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:23:32,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:23:32,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:23:32,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644292413] [2020-10-21 22:23:32,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:23:32,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 22:23:32,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718676255] [2020-10-21 22:23:32,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:23:32,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:23:32,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:23:32,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:23:32,463 INFO L87 Difference]: Start difference. First operand 325657 states. Second operand 3 states. Received shutdown request... [2020-10-21 22:23:41,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:23:41,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-21 22:23:41,612 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-21 22:23:41,616 WARN L235 ceAbstractionStarter]: Timeout [2020-10-21 22:23:41,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:23:41 BasicIcfg [2020-10-21 22:23:41,616 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 22:23:41,618 INFO L168 Benchmark]: Toolchain (without parser) took 253538.86 ms. Allocated memory was 147.8 MB in the beginning and 3.1 GB in the end (delta: 3.0 GB). Free memory was 101.4 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2020-10-21 22:23:41,619 INFO L168 Benchmark]: CDTParser took 3.09 ms. Allocated memory is still 147.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-21 22:23:41,620 INFO L168 Benchmark]: CACSL2BoogieTranslator took 758.18 ms. Allocated memory was 147.8 MB in the beginning and 205.5 MB in the end (delta: 57.7 MB). Free memory was 100.6 MB in the beginning and 161.4 MB in the end (delta: -60.8 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2020-10-21 22:23:41,620 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.43 ms. Allocated memory is still 205.5 MB. Free memory was 161.4 MB in the beginning and 158.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-21 22:23:41,626 INFO L168 Benchmark]: Boogie Preprocessor took 33.28 ms. Allocated memory is still 205.5 MB. Free memory was 158.8 MB in the beginning and 156.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 22:23:41,628 INFO L168 Benchmark]: RCFGBuilder took 535.06 ms. Allocated memory is still 205.5 MB. Free memory was 156.8 MB in the beginning and 128.5 MB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. [2020-10-21 22:23:41,630 INFO L168 Benchmark]: TraceAbstraction took 252150.53 ms. Allocated memory was 205.5 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 127.9 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2020-10-21 22:23:41,636 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.09 ms. Allocated memory is still 147.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 758.18 ms. Allocated memory was 147.8 MB in the beginning and 205.5 MB in the end (delta: 57.7 MB). Free memory was 100.6 MB in the beginning and 161.4 MB in the end (delta: -60.8 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.43 ms. Allocated memory is still 205.5 MB. Free memory was 161.4 MB in the beginning and 158.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.28 ms. Allocated memory is still 205.5 MB. Free memory was 158.8 MB in the beginning and 156.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 535.06 ms. Allocated memory is still 205.5 MB. Free memory was 156.8 MB in the beginning and 128.5 MB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 252150.53 ms. Allocated memory was 205.5 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 127.9 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1471 VarBasedMoverChecksPositive, 109 VarBasedMoverChecksNegative, 80 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 106 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.7s, 100 PlacesBefore, 26 PlacesAfterwards, 111 TransitionsBefore, 33 TransitionsAfterwards, 2240 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 15 ConcurrentYvCompositions, 4 ChoiceCompositions, 105 TotalNumberOfCompositions, 3828 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 4064 VarBasedMoverChecksPositive, 310 VarBasedMoverChecksNegative, 259 SemBasedMoverChecksPositive, 51 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.7s, 469 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.0s, 125 PlacesBefore, 44 PlacesAfterwards, 141 TransitionsBefore, 56 TransitionsAfterwards, 6664 CoEnabledTransitionPairs, 7 FixpointIterations, 36 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 19 ConcurrentYvCompositions, 4 ChoiceCompositions, 123 TotalNumberOfCompositions, 15378 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 7598 VarBasedMoverChecksPositive, 963 VarBasedMoverChecksNegative, 878 SemBasedMoverChecksPositive, 85 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 1.6s, 1072 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.1s, 150 PlacesBefore, 58 PlacesAfterwards, 171 TransitionsBefore, 75 TransitionsAfterwards, 12600 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 79 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 23 ConcurrentYvCompositions, 4 ChoiceCompositions, 145 TotalNumberOfCompositions, 29696 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 11358 VarBasedMoverChecksPositive, 1264 VarBasedMoverChecksNegative, 1166 SemBasedMoverChecksPositive, 98 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 1.8s, 938 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.8s, 175 PlacesBefore, 72 PlacesAfterwards, 201 TransitionsBefore, 94 TransitionsAfterwards, 20272 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 96 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 28 ConcurrentYvCompositions, 4 ChoiceCompositions, 166 TotalNumberOfCompositions, 48993 MoverChecksTotal - TimeoutResultAtElement [Line: 683]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 683). Cancelled while BasicCegarLoop was constructing difference of abstraction (325657states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (179164 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 97 locations, 1 error locations. Started 4 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 251.9s, OverallIterations: 8, TraceHistogramMax: 4, AutomataDifference: 11.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 236.9s, HoareTripleCheckerStatistics: 228 SDtfs, 143 SDslu, 191 SDs, 0 SdLazy, 70 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=325657occurred 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: 2.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 876 SizeOfPredicates, 16 NumberOfNonLiveVariables, 109 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 0/2 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 could not prove your program: Timeout Completed graceful shutdown