./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 21:32:30,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 21:32:30,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 21:32:30,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 21:32:30,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 21:32:30,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 21:32:30,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 21:32:30,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 21:32:30,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 21:32:30,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 21:32:30,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 21:32:30,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 21:32:30,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 21:32:30,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 21:32:30,941 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 21:32:30,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 21:32:30,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 21:32:30,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 21:32:30,946 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 21:32:30,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 21:32:30,952 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 21:32:30,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 21:32:30,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 21:32:30,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 21:32:30,955 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 21:32:30,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 21:32:30,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 21:32:30,960 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 21:32:30,961 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 21:32:30,961 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 21:32:30,962 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 21:32:30,963 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 21:32:30,964 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 21:32:30,964 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 21:32:30,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 21:32:30,965 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 21:32:30,965 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 21:32:30,966 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 21:32:30,966 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 21:32:30,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 21:32:30,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 21:32:30,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 21:32:30,969 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 21:32:30,991 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 21:32:30,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 21:32:30,992 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 21:32:30,992 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 21:32:30,993 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 21:32:30,993 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 21:32:30,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 21:32:30,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 21:32:30,993 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 21:32:30,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 21:32:30,995 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 21:32:30,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 21:32:30,995 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 21:32:30,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 21:32:30,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 21:32:30,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 21:32:30,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 21:32:30,996 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 21:32:30,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 21:32:30,997 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 21:32:31,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 21:32:31,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 21:32:31,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 21:32:31,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 21:32:31,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 21:32:31,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 21:32:31,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 21:32:31,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 21:32:31,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 21:32:31,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 21:32:31,006 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 21:32:31,006 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 21:32:31,007 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 21:32:31,007 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f [2022-07-22 21:32:31,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 21:32:31,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 21:32:31,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 21:32:31,224 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 21:32:31,224 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 21:32:31,225 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2022-07-22 21:32:31,276 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12201a52f/be1f308b174747aeafded44e7bf7b42e/FLAGeeea2b3c8 [2022-07-22 21:32:31,700 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 21:32:31,707 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2022-07-22 21:32:31,716 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12201a52f/be1f308b174747aeafded44e7bf7b42e/FLAGeeea2b3c8 [2022-07-22 21:32:32,088 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12201a52f/be1f308b174747aeafded44e7bf7b42e [2022-07-22 21:32:32,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 21:32:32,091 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 21:32:32,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 21:32:32,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 21:32:32,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 21:32:32,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 09:32:32" (1/1) ... [2022-07-22 21:32:32,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77fc5274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:32:32, skipping insertion in model container [2022-07-22 21:32:32,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 09:32:32" (1/1) ... [2022-07-22 21:32:32,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 21:32:32,139 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 21:32:32,346 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i[30176,30189] [2022-07-22 21:32:32,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 21:32:32,390 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 21:32:32,429 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i[30176,30189] [2022-07-22 21:32:32,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 21:32:32,465 INFO L208 MainTranslator]: Completed translation [2022-07-22 21:32:32,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:32:32 WrapperNode [2022-07-22 21:32:32,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 21:32:32,467 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 21:32:32,467 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 21:32:32,467 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 21:32:32,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:32:32" (1/1) ... [2022-07-22 21:32:32,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:32:32" (1/1) ... [2022-07-22 21:32:32,526 INFO L137 Inliner]: procedures = 172, calls = 50, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 216 [2022-07-22 21:32:32,529 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 21:32:32,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 21:32:32,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 21:32:32,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 21:32:32,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:32:32" (1/1) ... [2022-07-22 21:32:32,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:32:32" (1/1) ... [2022-07-22 21:32:32,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:32:32" (1/1) ... [2022-07-22 21:32:32,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:32:32" (1/1) ... [2022-07-22 21:32:32,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:32:32" (1/1) ... [2022-07-22 21:32:32,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:32:32" (1/1) ... [2022-07-22 21:32:32,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:32:32" (1/1) ... [2022-07-22 21:32:32,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 21:32:32,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 21:32:32,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 21:32:32,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 21:32:32,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:32:32" (1/1) ... [2022-07-22 21:32:32,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 21:32:32,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 21:32:32,578 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) [2022-07-22 21:32:32,586 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 [2022-07-22 21:32:32,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 21:32:32,613 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-07-22 21:32:32,613 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-07-22 21:32:32,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 21:32:32,613 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-22 21:32:32,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 21:32:32,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 21:32:32,613 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-07-22 21:32:32,613 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-07-22 21:32:32,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 21:32:32,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 21:32:32,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 21:32:32,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 21:32:32,615 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-22 21:32:32,732 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 21:32:32,733 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 21:32:32,979 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 21:32:32,985 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 21:32:32,985 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2022-07-22 21:32:32,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:32:32 BoogieIcfgContainer [2022-07-22 21:32:32,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 21:32:32,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 21:32:32,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 21:32:32,993 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 21:32:32,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 09:32:32" (1/3) ... [2022-07-22 21:32:32,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1df4273e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 09:32:32, skipping insertion in model container [2022-07-22 21:32:32,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:32:32" (2/3) ... [2022-07-22 21:32:32,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1df4273e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 09:32:32, skipping insertion in model container [2022-07-22 21:32:32,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:32:32" (3/3) ... [2022-07-22 21:32:32,996 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_09-ptrmunge_racing.i [2022-07-22 21:32:33,001 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-22 21:32:33,008 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 21:32:33,008 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-22 21:32:33,008 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-22 21:32:33,066 INFO L135 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-07-22 21:32:33,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 198 places, 225 transitions, 472 flow [2022-07-22 21:32:33,234 INFO L129 PetriNetUnfolder]: 58/396 cut-off events. [2022-07-22 21:32:33,234 INFO L130 PetriNetUnfolder]: For 8/13 co-relation queries the response was YES. [2022-07-22 21:32:33,242 INFO L84 FinitePrefix]: Finished finitePrefix Result has 416 conditions, 396 events. 58/396 cut-off events. For 8/13 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1746 event pairs, 0 based on Foata normal form. 0/329 useless extension candidates. Maximal degree in co-relation 211. Up to 8 conditions per place. [2022-07-22 21:32:33,243 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 225 transitions, 472 flow [2022-07-22 21:32:33,252 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 225 transitions, 472 flow [2022-07-22 21:32:33,265 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 21:32:33,272 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=true, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@26965cfd, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@24556072 [2022-07-22 21:32:33,272 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-22 21:32:33,288 INFO L129 PetriNetUnfolder]: 9/121 cut-off events. [2022-07-22 21:32:33,289 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-22 21:32:33,289 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:32:33,290 INFO L200 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 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] [2022-07-22 21:32:33,290 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-07-22 21:32:33,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:32:33,294 INFO L85 PathProgramCache]: Analyzing trace with hash 356695846, now seen corresponding path program 1 times [2022-07-22 21:32:33,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:32:33,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47575730] [2022-07-22 21:32:33,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:32:33,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:32:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 21:32:33,423 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 21:32:33,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 21:32:33,484 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 21:32:33,486 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 21:32:33,486 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2022-07-22 21:32:33,488 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-07-22 21:32:33,488 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-07-22 21:32:33,488 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-07-22 21:32:33,489 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-07-22 21:32:33,489 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-07-22 21:32:33,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 21:32:33,490 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-22 21:32:33,493 WARN L231 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-22 21:32:33,493 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-07-22 21:32:33,539 INFO L135 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-07-22 21:32:33,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 308 places, 359 transitions, 766 flow [2022-07-22 21:32:33,722 INFO L129 PetriNetUnfolder]: 197/1146 cut-off events. [2022-07-22 21:32:33,723 INFO L130 PetriNetUnfolder]: For 72/86 co-relation queries the response was YES. [2022-07-22 21:32:33,739 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1243 conditions, 1146 events. 197/1146 cut-off events. For 72/86 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 7051 event pairs, 1 based on Foata normal form. 0/954 useless extension candidates. Maximal degree in co-relation 709. Up to 32 conditions per place. [2022-07-22 21:32:33,739 INFO L82 GeneralOperation]: Start removeDead. Operand has 308 places, 359 transitions, 766 flow [2022-07-22 21:32:33,754 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 308 places, 359 transitions, 766 flow [2022-07-22 21:32:33,755 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 21:32:33,756 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=true, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@26965cfd, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@24556072 [2022-07-22 21:32:33,757 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-07-22 21:32:33,776 INFO L129 PetriNetUnfolder]: 27/283 cut-off events. [2022-07-22 21:32:33,777 INFO L130 PetriNetUnfolder]: For 7/10 co-relation queries the response was YES. [2022-07-22 21:32:33,777 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:32:33,777 INFO L200 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2022-07-22 21:32:33,778 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2022-07-22 21:32:33,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:32:33,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1285119007, now seen corresponding path program 1 times [2022-07-22 21:32:33,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:32:33,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638016512] [2022-07-22 21:32:33,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:32:33,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:32:33,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 21:32:33,823 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 21:32:33,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 21:32:33,846 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 21:32:33,849 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 21:32:33,849 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2022-07-22 21:32:33,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-07-22 21:32:33,867 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 8 remaining) [2022-07-22 21:32:33,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-07-22 21:32:33,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-07-22 21:32:33,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-07-22 21:32:33,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 8 remaining) [2022-07-22 21:32:33,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 8 remaining) [2022-07-22 21:32:33,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 21:32:33,869 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-22 21:32:33,869 WARN L231 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-22 21:32:33,869 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-07-22 21:32:33,911 INFO L135 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2022-07-22 21:32:33,915 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 418 places, 493 transitions, 1064 flow [2022-07-22 21:32:34,686 INFO L129 PetriNetUnfolder]: 664/3214 cut-off events. [2022-07-22 21:32:34,687 INFO L130 PetriNetUnfolder]: For 419/446 co-relation queries the response was YES. [2022-07-22 21:32:34,782 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3665 conditions, 3214 events. 664/3214 cut-off events. For 419/446 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 24139 event pairs, 52 based on Foata normal form. 0/2723 useless extension candidates. Maximal degree in co-relation 2073. Up to 192 conditions per place. [2022-07-22 21:32:34,783 INFO L82 GeneralOperation]: Start removeDead. Operand has 418 places, 493 transitions, 1064 flow [2022-07-22 21:32:34,827 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 418 places, 493 transitions, 1064 flow [2022-07-22 21:32:34,829 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 21:32:34,834 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=true, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@26965cfd, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@24556072 [2022-07-22 21:32:34,834 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-07-22 21:32:34,855 INFO L129 PetriNetUnfolder]: 30/293 cut-off events. [2022-07-22 21:32:34,855 INFO L130 PetriNetUnfolder]: For 9/12 co-relation queries the response was YES. [2022-07-22 21:32:34,855 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:32:34,856 INFO L200 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] [2022-07-22 21:32:34,857 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 7 more)] === [2022-07-22 21:32:34,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:32:34,857 INFO L85 PathProgramCache]: Analyzing trace with hash -2114467641, now seen corresponding path program 1 times [2022-07-22 21:32:34,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:32:34,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026052923] [2022-07-22 21:32:34,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:32:34,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:32:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:32:35,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:32:35,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:32:35,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026052923] [2022-07-22 21:32:35,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026052923] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:32:35,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:32:35,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-22 21:32:35,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10789110] [2022-07-22 21:32:35,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:32:35,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-22 21:32:35,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:32:35,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-22 21:32:35,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-07-22 21:32:35,334 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 493 [2022-07-22 21:32:35,341 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 493 transitions, 1064 flow. Second operand has 14 states, 14 states have (on average 284.85714285714283) internal successors, (3988), 14 states have internal predecessors, (3988), 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) [2022-07-22 21:32:35,341 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:32:35,341 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 493 [2022-07-22 21:32:35,342 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand