/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 19:15:13,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 19:15:13,736 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 19:15:13,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 19:15:13,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 19:15:13,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 19:15:13,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 19:15:13,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 19:15:13,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 19:15:13,780 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 19:15:13,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 19:15:13,781 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 19:15:13,781 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 19:15:13,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 19:15:13,784 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 19:15:13,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 19:15:13,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 19:15:13,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 19:15:13,789 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 19:15:13,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 19:15:13,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 19:15:13,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 19:15:13,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 19:15:13,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 19:15:13,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 19:15:13,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 19:15:13,805 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 19:15:13,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 19:15:13,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 19:15:13,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 19:15:13,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 19:15:13,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 19:15:13,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 19:15:13,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 19:15:13,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 19:15:13,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 19:15:13,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 19:15:13,809 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 19:15:13,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 19:15:13,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 19:15:13,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 19:15:13,811 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-11 19:15:13,829 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 19:15:13,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 19:15:13,831 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 19:15:13,831 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 19:15:13,831 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 19:15:13,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 19:15:13,832 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 19:15:13,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 19:15:13,832 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 19:15:13,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 19:15:13,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 19:15:13,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 19:15:13,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 19:15:13,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 19:15:13,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 19:15:13,833 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 19:15:13,834 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 19:15:13,834 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 19:15:13,834 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 19:15:13,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 19:15:13,834 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 19:15:13,834 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 19:15:13,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 19:15:13,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:15:13,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 19:15:13,835 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 19:15:13,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 19:15:13,835 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 19:15:13,835 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 19:15:13,835 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 19:15:13,835 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 19:15:13,835 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-11 19:15:14,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 19:15:14,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 19:15:14,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 19:15:14,121 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 19:15:14,121 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 19:15:14,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2022-12-11 19:15:15,008 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 19:15:15,247 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 19:15:15,247 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2022-12-11 19:15:15,255 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8b4dbf4a/f0714ec10a5d407da9a6a28f0bc0d204/FLAG97a38862d [2022-12-11 19:15:15,268 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8b4dbf4a/f0714ec10a5d407da9a6a28f0bc0d204 [2022-12-11 19:15:15,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 19:15:15,271 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 19:15:15,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 19:15:15,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 19:15:15,273 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 19:15:15,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:15:15" (1/1) ... [2022-12-11 19:15:15,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@316daeae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:15, skipping insertion in model container [2022-12-11 19:15:15,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:15:15" (1/1) ... [2022-12-11 19:15:15,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 19:15:15,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 19:15:15,581 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2022-12-11 19:15:15,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:15:15,608 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 19:15:15,637 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2022-12-11 19:15:15,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:15:15,682 INFO L208 MainTranslator]: Completed translation [2022-12-11 19:15:15,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:15 WrapperNode [2022-12-11 19:15:15,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 19:15:15,684 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 19:15:15,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 19:15:15,684 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 19:15:15,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:15" (1/1) ... [2022-12-11 19:15:15,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:15" (1/1) ... [2022-12-11 19:15:15,731 INFO L138 Inliner]: procedures = 170, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-12-11 19:15:15,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 19:15:15,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 19:15:15,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 19:15:15,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 19:15:15,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:15" (1/1) ... [2022-12-11 19:15:15,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:15" (1/1) ... [2022-12-11 19:15:15,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:15" (1/1) ... [2022-12-11 19:15:15,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:15" (1/1) ... [2022-12-11 19:15:15,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:15" (1/1) ... [2022-12-11 19:15:15,761 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:15" (1/1) ... [2022-12-11 19:15:15,766 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:15" (1/1) ... [2022-12-11 19:15:15,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:15" (1/1) ... [2022-12-11 19:15:15,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 19:15:15,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 19:15:15,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 19:15:15,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 19:15:15,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:15" (1/1) ... [2022-12-11 19:15:15,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:15:15,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:15:15,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-11 19:15:15,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-11 19:15:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-11 19:15:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 19:15:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-11 19:15:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 19:15:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 19:15:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-11 19:15:15,827 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-11 19:15:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 19:15:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 19:15:15,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 19:15:15,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 19:15:15,829 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 19:15:15,919 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 19:15:15,920 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 19:15:16,146 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 19:15:16,151 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 19:15:16,152 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-11 19:15:16,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:15:16 BoogieIcfgContainer [2022-12-11 19:15:16,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 19:15:16,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 19:15:16,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 19:15:16,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 19:15:16,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 07:15:15" (1/3) ... [2022-12-11 19:15:16,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@342dfe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:15:16, skipping insertion in model container [2022-12-11 19:15:16,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:15" (2/3) ... [2022-12-11 19:15:16,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@342dfe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:15:16, skipping insertion in model container [2022-12-11 19:15:16,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:15:16" (3/3) ... [2022-12-11 19:15:16,160 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2022-12-11 19:15:16,175 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 19:15:16,175 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 19:15:16,175 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 19:15:16,239 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-11 19:15:16,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 104 transitions, 216 flow [2022-12-11 19:15:16,325 INFO L130 PetriNetUnfolder]: 9/103 cut-off events. [2022-12-11 19:15:16,325 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-11 19:15:16,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 103 events. 9/103 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 156 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 55. Up to 3 conditions per place. [2022-12-11 19:15:16,330 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 104 transitions, 216 flow [2022-12-11 19:15:16,333 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 94 transitions, 191 flow [2022-12-11 19:15:16,344 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 19:15:16,350 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@31ce693a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 19:15:16,351 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-11 19:15:16,381 INFO L130 PetriNetUnfolder]: 2/80 cut-off events. [2022-12-11 19:15:16,381 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 19:15:16,381 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:15:16,382 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:15:16,382 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-11 19:15:16,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:15:16,386 INFO L85 PathProgramCache]: Analyzing trace with hash 2011379282, now seen corresponding path program 1 times [2022-12-11 19:15:16,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:15:16,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569949997] [2022-12-11 19:15:16,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:15:16,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:15:16,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:15:16,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:15:16,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:15:16,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569949997] [2022-12-11 19:15:16,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569949997] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:15:16,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:15:16,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-11 19:15:16,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781672095] [2022-12-11 19:15:16,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:15:16,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-11 19:15:16,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:15:16,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-11 19:15:16,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-11 19:15:16,892 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 104 [2022-12-11 19:15:16,894 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 94 transitions, 191 flow. Second operand has 9 states, 9 states have (on average 57.111111111111114) internal successors, (514), 9 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:15:16,894 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:15:16,895 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 104 [2022-12-11 19:15:16,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:15:17,176 INFO L130 PetriNetUnfolder]: 41/296 cut-off events. [2022-12-11 19:15:17,176 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 19:15:17,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 296 events. 41/296 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1349 event pairs, 10 based on Foata normal form. 96/389 useless extension candidates. Maximal degree in co-relation 361. Up to 29 conditions per place. [2022-12-11 19:15:17,179 INFO L137 encePairwiseOnDemand]: 85/104 looper letters, 28 selfloop transitions, 4 changer transitions 37/115 dead transitions. [2022-12-11 19:15:17,179 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 115 transitions, 365 flow [2022-12-11 19:15:17,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-11 19:15:17,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-11 19:15:17,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 864 transitions. [2022-12-11 19:15:17,201 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5934065934065934 [2022-12-11 19:15:17,202 INFO L175 Difference]: Start difference. First operand has 89 places, 94 transitions, 191 flow. Second operand 14 states and 864 transitions. [2022-12-11 19:15:17,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 115 transitions, 365 flow [2022-12-11 19:15:17,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 115 transitions, 364 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-11 19:15:17,210 INFO L231 Difference]: Finished difference. Result has 107 places, 78 transitions, 182 flow [2022-12-11 19:15:17,212 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=182, PETRI_PLACES=107, PETRI_TRANSITIONS=78} [2022-12-11 19:15:17,215 INFO L295 CegarLoopForPetriNet]: 89 programPoint places, 18 predicate places. [2022-12-11 19:15:17,215 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 78 transitions, 182 flow [2022-12-11 19:15:17,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 57.111111111111114) internal successors, (514), 9 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:15:17,215 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:15:17,216 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:15:17,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 19:15:17,216 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-11 19:15:17,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:15:17,217 INFO L85 PathProgramCache]: Analyzing trace with hash 391210782, now seen corresponding path program 1 times [2022-12-11 19:15:17,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:15:17,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133588016] [2022-12-11 19:15:17,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:15:17,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:15:17,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:15:17,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:15:17,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:15:17,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133588016] [2022-12-11 19:15:17,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133588016] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:15:17,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:15:17,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 19:15:17,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902470035] [2022-12-11 19:15:17,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:15:17,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 19:15:17,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:15:17,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 19:15:17,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-11 19:15:17,447 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 104 [2022-12-11 19:15:17,447 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 78 transitions, 182 flow. Second operand has 6 states, 6 states have (on average 72.83333333333333) internal successors, (437), 6 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:15:17,448 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:15:17,448 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 104 [2022-12-11 19:15:17,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:15:17,500 INFO L130 PetriNetUnfolder]: 0/82 cut-off events. [2022-12-11 19:15:17,500 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-11 19:15:17,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 82 events. 0/82 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 13 event pairs, 0 based on Foata normal form. 7/89 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2022-12-11 19:15:17,502 INFO L137 encePairwiseOnDemand]: 99/104 looper letters, 16 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2022-12-11 19:15:17,502 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 78 transitions, 224 flow [2022-12-11 19:15:17,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-11 19:15:17,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-11 19:15:17,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 373 transitions. [2022-12-11 19:15:17,506 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7173076923076923 [2022-12-11 19:15:17,506 INFO L175 Difference]: Start difference. First operand has 107 places, 78 transitions, 182 flow. Second operand 5 states and 373 transitions. [2022-12-11 19:15:17,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 78 transitions, 224 flow [2022-12-11 19:15:17,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 78 transitions, 204 flow, removed 6 selfloop flow, removed 10 redundant places. [2022-12-11 19:15:17,514 INFO L231 Difference]: Finished difference. Result has 86 places, 78 transitions, 172 flow [2022-12-11 19:15:17,515 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=172, PETRI_PLACES=86, PETRI_TRANSITIONS=78} [2022-12-11 19:15:17,515 INFO L295 CegarLoopForPetriNet]: 89 programPoint places, -3 predicate places. [2022-12-11 19:15:17,515 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 78 transitions, 172 flow [2022-12-11 19:15:17,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.83333333333333) internal successors, (437), 6 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:15:17,516 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:15:17,516 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:15:17,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 19:15:17,516 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-11 19:15:17,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:15:17,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1107954390, now seen corresponding path program 1 times [2022-12-11 19:15:17,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:15:17,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684288009] [2022-12-11 19:15:17,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:15:17,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:15:17,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:15:18,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:15:18,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:15:18,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684288009] [2022-12-11 19:15:18,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684288009] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:15:18,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:15:18,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-12-11 19:15:18,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592835359] [2022-12-11 19:15:18,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:15:18,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-11 19:15:18,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:15:18,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-11 19:15:18,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2022-12-11 19:15:18,013 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 104 [2022-12-11 19:15:18,014 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 78 transitions, 172 flow. Second operand has 17 states, 17 states have (on average 48.35294117647059) internal successors, (822), 17 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:15:18,014 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:15:18,014 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 104 [2022-12-11 19:15:18,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:15:18,481 INFO L130 PetriNetUnfolder]: 0/80 cut-off events. [2022-12-11 19:15:18,482 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-11 19:15:18,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 80 events. 0/80 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 13 event pairs, 0 based on Foata normal form. 1/81 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2022-12-11 19:15:18,482 INFO L137 encePairwiseOnDemand]: 84/104 looper letters, 0 selfloop transitions, 0 changer transitions 76/76 dead transitions. [2022-12-11 19:15:18,482 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 76 transitions, 246 flow [2022-12-11 19:15:18,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-11 19:15:18,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-11 19:15:18,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1006 transitions. [2022-12-11 19:15:18,484 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4606227106227106 [2022-12-11 19:15:18,484 INFO L175 Difference]: Start difference. First operand has 86 places, 78 transitions, 172 flow. Second operand 21 states and 1006 transitions. [2022-12-11 19:15:18,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 76 transitions, 246 flow [2022-12-11 19:15:18,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 76 transitions, 240 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-11 19:15:18,487 INFO L231 Difference]: Finished difference. Result has 101 places, 0 transitions, 0 flow [2022-12-11 19:15:18,487 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=0, PETRI_PLACES=101, PETRI_TRANSITIONS=0} [2022-12-11 19:15:18,488 INFO L295 CegarLoopForPetriNet]: 89 programPoint places, 12 predicate places. [2022-12-11 19:15:18,488 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 0 transitions, 0 flow [2022-12-11 19:15:18,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 48.35294117647059) internal successors, (822), 17 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:15:18,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-11 19:15:18,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-11 19:15:18,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 19:15:18,492 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-11 19:15:18,494 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 19:15:18,494 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 19:15:18,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 07:15:18 BasicIcfg [2022-12-11 19:15:18,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 19:15:18,502 INFO L158 Benchmark]: Toolchain (without parser) took 3230.69ms. Allocated memory was 204.5MB in the beginning and 267.4MB in the end (delta: 62.9MB). Free memory was 178.5MB in the beginning and 234.6MB in the end (delta: -56.1MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-12-11 19:15:18,502 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 204.5MB. Free memory was 180.4MB in the beginning and 180.3MB in the end (delta: 92.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 19:15:18,504 INFO L158 Benchmark]: CACSL2BoogieTranslator took 411.52ms. Allocated memory is still 204.5MB. Free memory was 178.5MB in the beginning and 158.6MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-11 19:15:18,504 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.51ms. Allocated memory is still 204.5MB. Free memory was 158.6MB in the beginning and 157.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 19:15:18,506 INFO L158 Benchmark]: Boogie Preprocessor took 38.67ms. Allocated memory is still 204.5MB. Free memory was 156.5MB in the beginning and 154.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-11 19:15:18,506 INFO L158 Benchmark]: RCFGBuilder took 382.56ms. Allocated memory is still 204.5MB. Free memory was 154.9MB in the beginning and 139.7MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-12-11 19:15:18,507 INFO L158 Benchmark]: TraceAbstraction took 2345.39ms. Allocated memory was 204.5MB in the beginning and 267.4MB in the end (delta: 62.9MB). Free memory was 138.7MB in the beginning and 234.6MB in the end (delta: -95.9MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 19:15:18,511 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 204.5MB. Free memory was 180.4MB in the beginning and 180.3MB in the end (delta: 92.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 411.52ms. Allocated memory is still 204.5MB. Free memory was 178.5MB in the beginning and 158.6MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.51ms. Allocated memory is still 204.5MB. Free memory was 158.6MB in the beginning and 157.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.67ms. Allocated memory is still 204.5MB. Free memory was 156.5MB in the beginning and 154.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 382.56ms. Allocated memory is still 204.5MB. Free memory was 154.9MB in the beginning and 139.7MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 2345.39ms. Allocated memory was 204.5MB in the beginning and 267.4MB in the end (delta: 62.9MB). Free memory was 138.7MB in the beginning and 234.6MB in the end (delta: -95.9MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 691]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 125 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 188 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 188 mSDsluCounter, 407 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 350 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 381 IncrementalHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 57 mSDtfsCounter, 381 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=191occurred in iteration=0, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 185 ConstructedInterpolants, 0 QuantifiedInterpolants, 831 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-11 19:15:18,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...