/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_24-sound_lock_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 23:23:05,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 23:23:05,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 23:23:05,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 23:23:05,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 23:23:05,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 23:23:05,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 23:23:05,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 23:23:05,747 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 23:23:05,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 23:23:05,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 23:23:05,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 23:23:05,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 23:23:05,751 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 23:23:05,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 23:23:05,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 23:23:05,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 23:23:05,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 23:23:05,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 23:23:05,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 23:23:05,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 23:23:05,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 23:23:05,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 23:23:05,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 23:23:05,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-21 23:23:05,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 23:23:05,773 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 23:23:05,773 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 23:23:05,774 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 23:23:05,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 23:23:05,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 23:23:05,776 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 23:23:05,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 23:23:05,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 23:23:05,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 23:23:05,778 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 23:23:05,779 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-21 23:23:05,801 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 23:23:05,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 23:23:05,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 23:23:05,803 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 23:23:05,803 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 23:23:05,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 23:23:05,803 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 23:23:05,804 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 23:23:05,804 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 23:23:05,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 23:23:05,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 23:23:05,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 23:23:05,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 23:23:05,805 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 23:23:05,805 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 23:23:05,805 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 23:23:05,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 23:23:05,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 23:23:05,806 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 23:23:05,806 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 23:23:05,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 23:23:05,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:23:05,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 23:23:05,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 23:23:05,807 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 23:23:05,807 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 23:23:05,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 23:23:05,808 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 23:23:05,808 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 23:23:06,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 23:23:06,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 23:23:06,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 23:23:06,125 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 23:23:06,126 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 23:23:06,127 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_24-sound_lock_racing.i [2020-10-21 23:23:06,200 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dd7a6010/016b53b6d1e54dc8b5898c4ca112957e/FLAGfbfff265d [2020-10-21 23:23:06,817 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 23:23:06,818 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_24-sound_lock_racing.i [2020-10-21 23:23:06,832 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dd7a6010/016b53b6d1e54dc8b5898c4ca112957e/FLAGfbfff265d [2020-10-21 23:23:06,998 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dd7a6010/016b53b6d1e54dc8b5898c4ca112957e [2020-10-21 23:23:07,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 23:23:07,015 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 23:23:07,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 23:23:07,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 23:23:07,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 23:23:07,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:23:07" (1/1) ... [2020-10-21 23:23:07,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1508a05a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:23:07, skipping insertion in model container [2020-10-21 23:23:07,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:23:07" (1/1) ... [2020-10-21 23:23:07,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 23:23:07,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 23:23:07,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:23:07,624 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 23:23:07,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:23:07,804 INFO L208 MainTranslator]: Completed translation [2020-10-21 23:23:07,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:23:07 WrapperNode [2020-10-21 23:23:07,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 23:23:07,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 23:23:07,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 23:23:07,806 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 23:23:07,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:23:07" (1/1) ... [2020-10-21 23:23:07,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:23:07" (1/1) ... [2020-10-21 23:23:07,866 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 23:23:07,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 23:23:07,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 23:23:07,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 23:23:07,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:23:07" (1/1) ... [2020-10-21 23:23:07,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:23:07" (1/1) ... [2020-10-21 23:23:07,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:23:07" (1/1) ... [2020-10-21 23:23:07,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:23:07" (1/1) ... [2020-10-21 23:23:07,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:23:07" (1/1) ... [2020-10-21 23:23:07,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:23:07" (1/1) ... [2020-10-21 23:23:07,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:23:07" (1/1) ... [2020-10-21 23:23:07,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 23:23:07,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 23:23:07,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 23:23:07,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 23:23:07,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:23:07" (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 23:23:07,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-21 23:23:07,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 23:23:07,977 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-21 23:23:07,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 23:23:07,978 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2020-10-21 23:23:07,978 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2020-10-21 23:23:07,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 23:23:07,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 23:23:07,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 23:23:07,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 23:23:07,981 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 23:23:08,406 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 23:23:08,406 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-21 23:23:08,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:23:08 BoogieIcfgContainer [2020-10-21 23:23:08,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 23:23:08,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 23:23:08,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 23:23:08,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 23:23:08,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 11:23:07" (1/3) ... [2020-10-21 23:23:08,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db44842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:23:08, skipping insertion in model container [2020-10-21 23:23:08,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:23:07" (2/3) ... [2020-10-21 23:23:08,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db44842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:23:08, skipping insertion in model container [2020-10-21 23:23:08,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:23:08" (3/3) ... [2020-10-21 23:23:08,417 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_24-sound_lock_racing.i [2020-10-21 23:23:08,429 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 23:23:08,429 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 23:23:08,436 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 23:23:08,437 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 23:23:08,463 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,463 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,464 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,464 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,464 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,465 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,465 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,466 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,466 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,466 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,466 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,467 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,467 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,467 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,468 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,468 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,468 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,468 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,472 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,473 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,473 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,473 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,473 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,474 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,474 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,474 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,474 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:08,483 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-10-21 23:23:08,493 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-21 23:23:08,510 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 23:23:08,510 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 23:23:08,510 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 23:23:08,510 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 23:23:08,510 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 23:23:08,510 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 23:23:08,511 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 23:23:08,511 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 23:23:08,523 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 23:23:08,524 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 111 transitions, 230 flow [2020-10-21 23:23:08,527 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 111 transitions, 230 flow [2020-10-21 23:23:08,529 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 100 places, 111 transitions, 230 flow [2020-10-21 23:23:08,592 INFO L129 PetriNetUnfolder]: 20/146 cut-off events. [2020-10-21 23:23:08,593 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-21 23:23:08,599 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 23:23:08,604 INFO L116 LiptonReduction]: Number of co-enabled transitions 2240 [2020-10-21 23:23:10,276 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-21 23:23:10,822 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-21 23:23:10,966 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-21 23:23:11,846 WARN L193 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 150 [2020-10-21 23:23:12,217 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-21 23:23:12,228 INFO L131 LiptonReduction]: Checked pairs total: 4621 [2020-10-21 23:23:12,228 INFO L133 LiptonReduction]: Total number of compositions: 97 [2020-10-21 23:23:12,235 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 35 transitions, 78 flow [2020-10-21 23:23:12,250 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 143 states. [2020-10-21 23:23:12,253 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2020-10-21 23:23:12,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 23:23:12,259 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:23:12,260 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 23:23:12,260 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:23:12,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:23:12,266 INFO L82 PathProgramCache]: Analyzing trace with hash 13472221, now seen corresponding path program 1 times [2020-10-21 23:23:12,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:23:12,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347805197] [2020-10-21 23:23:12,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:23:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:23:12,530 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 23:23:12,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347805197] [2020-10-21 23:23:12,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:23:12,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 23:23:12,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747348194] [2020-10-21 23:23:12,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:23:12,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:23:12,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:23:12,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:23:12,558 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 3 states. [2020-10-21 23:23:12,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:23:12,624 INFO L93 Difference]: Finished difference Result 136 states and 235 transitions. [2020-10-21 23:23:12,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:23:12,626 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-21 23:23:12,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:23:12,640 INFO L225 Difference]: With dead ends: 136 [2020-10-21 23:23:12,640 INFO L226 Difference]: Without dead ends: 69 [2020-10-21 23:23:12,642 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 23:23:12,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-21 23:23:12,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-21 23:23:12,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-21 23:23:12,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 118 transitions. [2020-10-21 23:23:12,705 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 118 transitions. Word has length 4 [2020-10-21 23:23:12,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:23:12,706 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 118 transitions. [2020-10-21 23:23:12,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:23:12,706 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 118 transitions. [2020-10-21 23:23:12,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-21 23:23:12,707 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:23:12,707 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-10-21 23:23:12,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 23:23:12,708 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:23:12,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:23:12,708 INFO L82 PathProgramCache]: Analyzing trace with hash 40182405, now seen corresponding path program 1 times [2020-10-21 23:23:12,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:23:12,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819400467] [2020-10-21 23:23:12,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:23:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 23:23:12,803 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 23:23:12,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 23:23:12,859 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 23:23:12,888 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 23:23:12,888 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 23:23:12,889 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 23:23:12,889 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-21 23:23:12,891 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 23:23:12,891 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-21 23:23:12,900 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,900 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,900 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,900 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,901 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,901 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,901 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,901 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,902 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,902 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,902 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,902 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,902 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,903 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,903 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,903 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,903 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,903 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,904 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,904 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,904 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,904 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,905 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,905 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,905 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,905 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,906 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,906 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,906 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,906 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,906 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,906 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,907 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,907 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,907 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,907 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,908 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,908 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,909 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,909 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,909 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,909 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,909 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,910 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,910 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,912 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,913 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,913 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,913 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,913 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,914 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,914 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,914 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,914 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:12,917 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2020-10-21 23:23:12,917 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-21 23:23:12,918 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 23:23:12,918 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 23:23:12,918 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 23:23:12,918 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 23:23:12,918 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 23:23:12,918 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 23:23:12,918 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 23:23:12,919 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 23:23:12,921 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 23:23:12,922 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 141 transitions, 300 flow [2020-10-21 23:23:12,922 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 141 transitions, 300 flow [2020-10-21 23:23:12,922 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 125 places, 141 transitions, 300 flow [2020-10-21 23:23:12,969 INFO L129 PetriNetUnfolder]: 35/234 cut-off events. [2020-10-21 23:23:12,969 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2020-10-21 23:23:12,972 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 716 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 23:23:12,982 INFO L116 LiptonReduction]: Number of co-enabled transitions 6664 [2020-10-21 23:23:14,991 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-21 23:23:15,119 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-21 23:23:15,445 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-21 23:23:15,754 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-21 23:23:16,633 WARN L193 SmtUtils]: Spent 862.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 150 [2020-10-21 23:23:17,089 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-21 23:23:17,109 INFO L131 LiptonReduction]: Checked pairs total: 17108 [2020-10-21 23:23:17,109 INFO L133 LiptonReduction]: Total number of compositions: 110 [2020-10-21 23:23:17,110 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 55 transitions, 128 flow [2020-10-21 23:23:17,210 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2113 states. [2020-10-21 23:23:17,211 INFO L276 IsEmpty]: Start isEmpty. Operand 2113 states. [2020-10-21 23:23:17,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 23:23:17,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:23:17,212 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 23:23:17,212 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:23:17,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:23:17,212 INFO L82 PathProgramCache]: Analyzing trace with hash 22141559, now seen corresponding path program 1 times [2020-10-21 23:23:17,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:23:17,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874190451] [2020-10-21 23:23:17,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:23:17,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:23:17,253 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 23:23:17,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874190451] [2020-10-21 23:23:17,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:23:17,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 23:23:17,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999110269] [2020-10-21 23:23:17,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:23:17,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:23:17,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:23:17,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:23:17,255 INFO L87 Difference]: Start difference. First operand 2113 states. Second operand 3 states. [2020-10-21 23:23:17,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:23:17,327 INFO L93 Difference]: Finished difference Result 2816 states and 7346 transitions. [2020-10-21 23:23:17,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:23:17,327 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-21 23:23:17,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:23:17,345 INFO L225 Difference]: With dead ends: 2816 [2020-10-21 23:23:17,345 INFO L226 Difference]: Without dead ends: 1209 [2020-10-21 23:23:17,345 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 23:23:17,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2020-10-21 23:23:17,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1209. [2020-10-21 23:23:17,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1209 states. [2020-10-21 23:23:17,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 3199 transitions. [2020-10-21 23:23:17,451 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 3199 transitions. Word has length 4 [2020-10-21 23:23:17,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:23:17,451 INFO L481 AbstractCegarLoop]: Abstraction has 1209 states and 3199 transitions. [2020-10-21 23:23:17,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:23:17,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 3199 transitions. [2020-10-21 23:23:17,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 23:23:17,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:23:17,454 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2020-10-21 23:23:17,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 23:23:17,454 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:23:17,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:23:17,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1738598706, now seen corresponding path program 1 times [2020-10-21 23:23:17,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:23:17,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296791898] [2020-10-21 23:23:17,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:23:17,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 23:23:17,504 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 23:23:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 23:23:17,545 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 23:23:17,582 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 23:23:17,582 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 23:23:17,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 23:23:17,583 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-21 23:23:17,583 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 23:23:17,585 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-21 23:23:17,599 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,599 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,599 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,599 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,600 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,600 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,600 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,600 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,601 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,601 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,601 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,601 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,601 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,601 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,602 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,602 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,602 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,602 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,603 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,603 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,603 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,603 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,603 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,603 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,604 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,604 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,604 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,604 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,604 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,605 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,605 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,605 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,605 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,605 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,606 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,606 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,606 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,606 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,607 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,607 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,607 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,607 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,607 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,608 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,608 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,608 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,608 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,608 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,608 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,609 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,609 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,609 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,609 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,609 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,610 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,610 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,610 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,610 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,611 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,611 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,611 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,611 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,611 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,613 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,613 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,614 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,614 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,614 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,614 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,614 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,614 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,615 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,616 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,616 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,616 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,616 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,617 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,617 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,617 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,617 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,617 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:17,620 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2020-10-21 23:23:17,621 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-21 23:23:17,621 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 23:23:17,621 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 23:23:17,621 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 23:23:17,622 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 23:23:17,622 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 23:23:17,622 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 23:23:17,622 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 23:23:17,622 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 23:23:17,625 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 23:23:17,625 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 171 transitions, 372 flow [2020-10-21 23:23:17,625 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 171 transitions, 372 flow [2020-10-21 23:23:17,625 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 150 places, 171 transitions, 372 flow [2020-10-21 23:23:17,683 INFO L129 PetriNetUnfolder]: 55/353 cut-off events. [2020-10-21 23:23:17,684 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2020-10-21 23:23:17,689 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 1236 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 23:23:17,707 INFO L116 LiptonReduction]: Number of co-enabled transitions 12600 [2020-10-21 23:23:19,524 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2020-10-21 23:23:19,956 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-21 23:23:20,128 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-21 23:23:21,155 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 156 DAG size of output: 150 [2020-10-21 23:23:21,579 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-21 23:23:21,591 INFO L131 LiptonReduction]: Checked pairs total: 31543 [2020-10-21 23:23:21,592 INFO L133 LiptonReduction]: Total number of compositions: 126 [2020-10-21 23:23:21,592 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 58 places, 74 transitions, 178 flow [2020-10-21 23:23:24,338 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 26221 states. [2020-10-21 23:23:24,339 INFO L276 IsEmpty]: Start isEmpty. Operand 26221 states. [2020-10-21 23:23:24,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 23:23:24,339 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:23:24,340 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 23:23:24,340 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:23:24,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:23:24,340 INFO L82 PathProgramCache]: Analyzing trace with hash 32186327, now seen corresponding path program 1 times [2020-10-21 23:23:24,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:23:24,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810649368] [2020-10-21 23:23:24,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:23:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:23:24,372 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 23:23:24,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810649368] [2020-10-21 23:23:24,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:23:24,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 23:23:24,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119258246] [2020-10-21 23:23:24,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:23:24,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:23:24,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:23:24,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:23:24,378 INFO L87 Difference]: Start difference. First operand 26221 states. Second operand 3 states. [2020-10-21 23:23:24,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:23:24,701 INFO L93 Difference]: Finished difference Result 26158 states and 92705 transitions. [2020-10-21 23:23:24,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:23:24,702 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-21 23:23:24,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:23:24,832 INFO L225 Difference]: With dead ends: 26158 [2020-10-21 23:23:24,833 INFO L226 Difference]: Without dead ends: 14764 [2020-10-21 23:23:24,833 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 23:23:25,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14764 states. [2020-10-21 23:23:26,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14764 to 14764. [2020-10-21 23:23:26,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14764 states. [2020-10-21 23:23:26,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14764 states to 14764 states and 52547 transitions. [2020-10-21 23:23:26,485 INFO L78 Accepts]: Start accepts. Automaton has 14764 states and 52547 transitions. Word has length 4 [2020-10-21 23:23:26,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:23:26,486 INFO L481 AbstractCegarLoop]: Abstraction has 14764 states and 52547 transitions. [2020-10-21 23:23:26,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:23:26,486 INFO L276 IsEmpty]: Start isEmpty. Operand 14764 states and 52547 transitions. [2020-10-21 23:23:26,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 23:23:26,491 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:23:26,491 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:23:26,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 23:23:26,491 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:23:26,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:23:26,492 INFO L82 PathProgramCache]: Analyzing trace with hash 439141038, now seen corresponding path program 1 times [2020-10-21 23:23:26,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:23:26,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353900910] [2020-10-21 23:23:26,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:23:26,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:23:26,556 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 23:23:26,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353900910] [2020-10-21 23:23:26,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754533748] [2020-10-21 23:23:26,557 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 23:23:26,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:23:26,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-21 23:23:26,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 23:23:26,690 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 23:23:26,773 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:23:26,774 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 120 treesize of output 124 [2020-10-21 23:23:26,777 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 2, 6, 1] term [2020-10-21 23:23:26,777 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 23:23:26,791 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-21 23:23:26,792 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 23:23:26,801 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:23:26,835 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:23:26,836 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 198 treesize of output 202 [2020-10-21 23:23:26,838 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 2, 6, 1] term [2020-10-21 23:23:26,839 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 23:23:26,841 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 23:23:26,843 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-21 23:23:26,844 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 23:23:26,848 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 23:23:26,850 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 23:23:26,852 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 23:23:26,858 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-21 23:23:27,079 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 51 [2020-10-21 23:23:27,080 INFO L625 ElimStorePlain]: treesize reduction 836, result has 9.7 percent of original size [2020-10-21 23:23:27,087 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2020-10-21 23:23:27,088 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-10-21 23:23:27,093 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2020-10-21 23:23:27,094 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-10-21 23:23:27,135 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:23:27,159 INFO L545 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-21 23:23:27,159 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:106, output treesize:16 [2020-10-21 23:23:27,189 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-21 23:23:27,189 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:23:27,196 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-21 23:23:27,196 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-21 23:23:27,211 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:23:27,212 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-21 23:23:27,212 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:38, output treesize:30 [2020-10-21 23:23:27,241 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 23:23:27,263 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2020-10-21 23:23:27,265 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:23:27,288 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:23:27,288 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 45 [2020-10-21 23:23:27,290 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-21 23:23:27,335 INFO L625 ElimStorePlain]: treesize reduction 16, result has 73.8 percent of original size [2020-10-21 23:23:27,339 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2020-10-21 23:23:27,340 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:63, output treesize:45 [2020-10-21 23:23:27,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:23:27,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-21 23:23:27,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 6 [2020-10-21 23:23:27,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116817984] [2020-10-21 23:23:27,979 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:23:27,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:23:27,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:23:27,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=28, Unknown=1, NotChecked=0, Total=42 [2020-10-21 23:23:27,980 INFO L87 Difference]: Start difference. First operand 14764 states and 52547 transitions. Second operand 5 states. [2020-10-21 23:23:28,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:23:28,565 INFO L93 Difference]: Finished difference Result 9656 states and 26372 transitions. [2020-10-21 23:23:28,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:23:28,566 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-21 23:23:28,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:23:28,603 INFO L225 Difference]: With dead ends: 9656 [2020-10-21 23:23:28,604 INFO L226 Difference]: Without dead ends: 9617 [2020-10-21 23:23:28,604 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=37, Unknown=1, NotChecked=0, Total=56 [2020-10-21 23:23:28,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9617 states. [2020-10-21 23:23:28,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9617 to 8617. [2020-10-21 23:23:28,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8617 states. [2020-10-21 23:23:28,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8617 states to 8617 states and 24318 transitions. [2020-10-21 23:23:28,947 INFO L78 Accepts]: Start accepts. Automaton has 8617 states and 24318 transitions. Word has length 13 [2020-10-21 23:23:28,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:23:28,948 INFO L481 AbstractCegarLoop]: Abstraction has 8617 states and 24318 transitions. [2020-10-21 23:23:28,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:23:28,948 INFO L276 IsEmpty]: Start isEmpty. Operand 8617 states and 24318 transitions. [2020-10-21 23:23:28,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-21 23:23:28,950 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:23:28,950 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:23:29,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-10-21 23:23:29,165 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:23:29,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:23:29,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1583469246, now seen corresponding path program 1 times [2020-10-21 23:23:29,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:23:29,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403715585] [2020-10-21 23:23:29,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:23:29,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:23:29,205 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 23:23:29,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403715585] [2020-10-21 23:23:29,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324775318] [2020-10-21 23:23:29,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:23:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:23:29,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-21 23:23:29,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 23:23:29,310 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 23:23:29,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 23:23:29,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2020-10-21 23:23:29,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941134365] [2020-10-21 23:23:29,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:23:29,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:23:29,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:23:29,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:23:29,313 INFO L87 Difference]: Start difference. First operand 8617 states and 24318 transitions. Second operand 4 states. [2020-10-21 23:23:29,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:23:29,373 INFO L93 Difference]: Finished difference Result 8599 states and 24287 transitions. [2020-10-21 23:23:29,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:23:29,374 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-21 23:23:29,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:23:29,407 INFO L225 Difference]: With dead ends: 8599 [2020-10-21 23:23:29,407 INFO L226 Difference]: Without dead ends: 8599 [2020-10-21 23:23:29,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 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 23:23:29,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8599 states. [2020-10-21 23:23:29,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8599 to 8599. [2020-10-21 23:23:29,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8599 states. [2020-10-21 23:23:29,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8599 states to 8599 states and 24287 transitions. [2020-10-21 23:23:29,939 INFO L78 Accepts]: Start accepts. Automaton has 8599 states and 24287 transitions. Word has length 14 [2020-10-21 23:23:29,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:23:29,940 INFO L481 AbstractCegarLoop]: Abstraction has 8599 states and 24287 transitions. [2020-10-21 23:23:29,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:23:29,940 INFO L276 IsEmpty]: Start isEmpty. Operand 8599 states and 24287 transitions. [2020-10-21 23:23:29,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 23:23:29,942 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:23:29,942 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2020-10-21 23:23:30,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:23:30,157 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:23:30,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:23:30,157 INFO L82 PathProgramCache]: Analyzing trace with hash -524724518, now seen corresponding path program 1 times [2020-10-21 23:23:30,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:23:30,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993456134] [2020-10-21 23:23:30,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:23:30,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 23:23:30,174 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 23:23:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 23:23:30,188 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 23:23:30,196 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 23:23:30,196 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 23:23:30,196 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-21 23:23:30,196 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-21 23:23:30,197 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 23:23:30,197 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-21 23:23:30,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,207 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,208 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,208 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,208 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,208 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,208 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,209 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,209 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,209 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,209 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,209 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,209 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,210 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,210 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,210 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,210 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,210 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,211 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,211 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,211 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,211 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,211 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,211 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,213 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,213 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,213 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,213 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,213 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,213 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,214 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,214 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,217 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,217 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,218 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,218 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,218 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,218 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,218 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,218 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,220 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,221 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,221 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,221 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,221 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,223 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,223 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,223 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,223 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,223 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,224 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,224 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,224 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,224 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,225 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,226 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,226 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,226 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,226 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,226 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,226 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,227 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,227 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,228 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,228 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,228 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,229 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,229 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,229 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,229 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,229 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,229 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:23:30,233 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-21 23:23:30,234 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-21 23:23:30,234 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 23:23:30,234 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 23:23:30,234 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 23:23:30,234 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 23:23:30,235 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 23:23:30,235 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 23:23:30,235 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 23:23:30,235 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 23:23:30,237 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 23:23:30,237 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 175 places, 201 transitions, 446 flow [2020-10-21 23:23:30,237 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 175 places, 201 transitions, 446 flow [2020-10-21 23:23:30,237 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 175 places, 201 transitions, 446 flow [2020-10-21 23:23:30,328 INFO L129 PetriNetUnfolder]: 87/536 cut-off events. [2020-10-21 23:23:30,328 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2020-10-21 23:23:30,334 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 2095 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 23:23:30,363 INFO L116 LiptonReduction]: Number of co-enabled transitions 20272 [2020-10-21 23:23:32,153 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-10-21 23:23:32,619 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-21 23:23:32,892 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-21 23:23:33,070 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-21 23:23:34,052 WARN L193 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 150 [2020-10-21 23:23:34,387 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-21 23:23:34,404 INFO L131 LiptonReduction]: Checked pairs total: 56256 [2020-10-21 23:23:34,405 INFO L133 LiptonReduction]: Total number of compositions: 137 [2020-10-21 23:23:34,405 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 73 places, 95 transitions, 234 flow [2020-10-21 23:27:25,865 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 348278 states. [2020-10-21 23:27:25,866 INFO L276 IsEmpty]: Start isEmpty. Operand 348278 states. [2020-10-21 23:27:25,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 23:27:25,866 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:27:25,866 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 23:27:25,866 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:27:25,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:27:25,867 INFO L82 PathProgramCache]: Analyzing trace with hash 43526025, now seen corresponding path program 1 times [2020-10-21 23:27:25,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:27:25,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864482155] [2020-10-21 23:27:25,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:27:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:27:25,909 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 23:27:25,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864482155] [2020-10-21 23:27:25,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:27:25,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 23:27:25,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813923199] [2020-10-21 23:27:25,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:27:25,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:27:25,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:27:25,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:27:25,911 INFO L87 Difference]: Start difference. First operand 348278 states. Second operand 3 states. Received shutdown request... [2020-10-21 23:27:26,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:27:26,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-21 23:27:26,072 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-21 23:27:26,075 WARN L235 ceAbstractionStarter]: Timeout [2020-10-21 23:27:26,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 11:27:26 BasicIcfg [2020-10-21 23:27:26,076 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 23:27:26,077 INFO L168 Benchmark]: Toolchain (without parser) took 259068.54 ms. Allocated memory was 140.0 MB in the beginning and 3.3 GB in the end (delta: 3.1 GB). Free memory was 102.4 MB in the beginning and 694.7 MB in the end (delta: -592.3 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2020-10-21 23:27:26,078 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-21 23:27:26,079 INFO L168 Benchmark]: CACSL2BoogieTranslator took 789.14 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.4 MB in the beginning and 158.7 MB in the end (delta: -57.3 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-10-21 23:27:26,080 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.30 ms. Allocated memory is still 203.4 MB. Free memory was 158.7 MB in the beginning and 156.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-10-21 23:27:26,082 INFO L168 Benchmark]: Boogie Preprocessor took 30.76 ms. Allocated memory is still 203.4 MB. Free memory was 156.5 MB in the beginning and 154.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-21 23:27:26,083 INFO L168 Benchmark]: RCFGBuilder took 511.09 ms. Allocated memory is still 203.4 MB. Free memory was 154.4 MB in the beginning and 126.1 MB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. [2020-10-21 23:27:26,086 INFO L168 Benchmark]: TraceAbstraction took 257666.32 ms. Allocated memory was 203.4 MB in the beginning and 3.3 GB in the end (delta: 3.1 GB). Free memory was 125.4 MB in the beginning and 694.7 MB in the end (delta: -569.4 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2020-10-21 23:27:26,096 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 789.14 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.4 MB in the beginning and 158.7 MB in the end (delta: -57.3 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 60.30 ms. Allocated memory is still 203.4 MB. Free memory was 158.7 MB in the beginning and 156.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.76 ms. Allocated memory is still 203.4 MB. Free memory was 156.5 MB in the beginning and 154.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 511.09 ms. Allocated memory is still 203.4 MB. Free memory was 154.4 MB in the beginning and 126.1 MB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 257666.32 ms. Allocated memory was 203.4 MB in the beginning and 3.3 GB in the end (delta: 3.1 GB). Free memory was 125.4 MB in the beginning and 694.7 MB in the end (delta: -569.4 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1150 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 70 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.7s, 100 PlacesBefore, 27 PlacesAfterwards, 111 TransitionsBefore, 35 TransitionsAfterwards, 2240 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 15 ConcurrentYvCompositions, 3 ChoiceCompositions, 97 TotalNumberOfCompositions, 4621 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 3204 VarBasedMoverChecksPositive, 47 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 253 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.1s, 125 PlacesBefore, 44 PlacesAfterwards, 141 TransitionsBefore, 55 TransitionsAfterwards, 6664 CoEnabledTransitionPairs, 7 FixpointIterations, 34 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 18 ConcurrentYvCompositions, 5 ChoiceCompositions, 110 TotalNumberOfCompositions, 17108 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 5882 VarBasedMoverChecksPositive, 60 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 498 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.9s, 150 PlacesBefore, 58 PlacesAfterwards, 171 TransitionsBefore, 74 TransitionsAfterwards, 12600 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 23 ConcurrentYvCompositions, 5 ChoiceCompositions, 126 TotalNumberOfCompositions, 31543 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 9034 VarBasedMoverChecksPositive, 104 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 616 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.1s, 175 PlacesBefore, 73 PlacesAfterwards, 201 TransitionsBefore, 95 TransitionsAfterwards, 20272 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 69 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 26 ConcurrentYvCompositions, 4 ChoiceCompositions, 137 TotalNumberOfCompositions, 56256 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 (348278states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (17986 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: 257.4s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 250.3s, HoareTripleCheckerStatistics: 299 SDtfs, 248 SDslu, 222 SDs, 0 SdLazy, 194 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=348278occurred 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: 2.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 1000 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 62 ConstructedInterpolants, 1 QuantifiedInterpolants, 4462 SizeOfPredicates, 34 NumberOfNonLiveVariables, 227 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 1/4 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