./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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_83-list2_racing1.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 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 21:20:25,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 21:20:25,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 21:20:25,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 21:20:25,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 21:20:25,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 21:20:25,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 21:20:25,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 21:20:25,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 21:20:25,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 21:20:25,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 21:20:25,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 21:20:25,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 21:20:25,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 21:20:25,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 21:20:25,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 21:20:25,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 21:20:25,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 21:20:25,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 21:20:26,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 21:20:26,002 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 21:20:26,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 21:20:26,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 21:20:26,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 21:20:26,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 21:20:26,008 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 21:20:26,008 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 21:20:26,009 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 21:20:26,010 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 21:20:26,010 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 21:20:26,011 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 21:20:26,011 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 21:20:26,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 21:20:26,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 21:20:26,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 21:20:26,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 21:20:26,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 21:20:26,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 21:20:26,014 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 21:20:26,014 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 21:20:26,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 21:20:26,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 21:20:26,017 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 21:20:26,041 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 21:20:26,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 21:20:26,042 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 21:20:26,042 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 21:20:26,043 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 21:20:26,043 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 21:20:26,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 21:20:26,044 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 21:20:26,044 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 21:20:26,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 21:20:26,045 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 21:20:26,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 21:20:26,045 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 21:20:26,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 21:20:26,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 21:20:26,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 21:20:26,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 21:20:26,046 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 21:20:26,047 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 21:20:26,047 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 21:20:26,047 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 21:20:26,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 21:20:26,047 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 21:20:26,048 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 21:20:26,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 21:20:26,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 21:20:26,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 21:20:26,048 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 21:20:26,048 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 21:20:26,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 21:20:26,049 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 21:20:26,049 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 21:20:26,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 21:20:26,049 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d [2022-07-19 21:20:26,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 21:20:26,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 21:20:26,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 21:20:26,259 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 21:20:26,260 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 21:20:26,261 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i [2022-07-19 21:20:26,302 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e741f8b4/cc76c14ca01c439a8103ee28694c2be1/FLAGba5bbb84d [2022-07-19 21:20:26,725 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 21:20:26,729 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i [2022-07-19 21:20:26,747 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e741f8b4/cc76c14ca01c439a8103ee28694c2be1/FLAGba5bbb84d [2022-07-19 21:20:27,063 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e741f8b4/cc76c14ca01c439a8103ee28694c2be1 [2022-07-19 21:20:27,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 21:20:27,066 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 21:20:27,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 21:20:27,068 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 21:20:27,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 21:20:27,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:20:27" (1/1) ... [2022-07-19 21:20:27,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b0f8766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:20:27, skipping insertion in model container [2022-07-19 21:20:27,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:20:27" (1/1) ... [2022-07-19 21:20:27,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 21:20:27,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 21:20:27,498 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_83-list2_racing1.i[47038,47051] [2022-07-19 21:20:27,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 21:20:27,551 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 21:20:27,579 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_83-list2_racing1.i[47038,47051] [2022-07-19 21:20:27,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 21:20:27,652 INFO L208 MainTranslator]: Completed translation [2022-07-19 21:20:27,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:20:27 WrapperNode [2022-07-19 21:20:27,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 21:20:27,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 21:20:27,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 21:20:27,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 21:20:27,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:20:27" (1/1) ... [2022-07-19 21:20:27,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:20:27" (1/1) ... [2022-07-19 21:20:27,726 INFO L137 Inliner]: procedures = 279, calls = 86, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 343 [2022-07-19 21:20:27,726 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 21:20:27,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 21:20:27,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 21:20:27,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 21:20:27,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:20:27" (1/1) ... [2022-07-19 21:20:27,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:20:27" (1/1) ... [2022-07-19 21:20:27,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:20:27" (1/1) ... [2022-07-19 21:20:27,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:20:27" (1/1) ... [2022-07-19 21:20:27,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:20:27" (1/1) ... [2022-07-19 21:20:27,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:20:27" (1/1) ... [2022-07-19 21:20:27,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:20:27" (1/1) ... [2022-07-19 21:20:27,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 21:20:27,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 21:20:27,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 21:20:27,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 21:20:27,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:20:27" (1/1) ... [2022-07-19 21:20:27,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 21:20:27,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:20:27,810 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) [2022-07-19 21:20:27,827 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 [2022-07-19 21:20:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 21:20:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-19 21:20:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-07-19 21:20:27,861 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-07-19 21:20:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 21:20:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 21:20:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-07-19 21:20:27,862 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-07-19 21:20:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 21:20:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-19 21:20:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 21:20:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 21:20:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 21:20:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2022-07-19 21:20:27,862 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2022-07-19 21:20:27,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 21:20:27,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 21:20:27,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 21:20:27,864 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-19 21:20:28,047 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 21:20:28,049 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 21:20:28,444 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 21:20:28,451 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 21:20:28,452 INFO L299 CfgBuilder]: Removed 28 assume(true) statements. [2022-07-19 21:20:28,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:20:28 BoogieIcfgContainer [2022-07-19 21:20:28,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 21:20:28,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 21:20:28,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 21:20:28,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 21:20:28,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 09:20:27" (1/3) ... [2022-07-19 21:20:28,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4434c081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:20:28, skipping insertion in model container [2022-07-19 21:20:28,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:20:27" (2/3) ... [2022-07-19 21:20:28,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4434c081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:20:28, skipping insertion in model container [2022-07-19 21:20:28,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:20:28" (3/3) ... [2022-07-19 21:20:28,460 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_83-list2_racing1.i [2022-07-19 21:20:28,464 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-19 21:20:28,471 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 21:20:28,471 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-19 21:20:28,471 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-19 21:20:28,560 INFO L135 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2022-07-19 21:20:28,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 329 places, 368 transitions, 778 flow [2022-07-19 21:20:28,794 INFO L129 PetriNetUnfolder]: 165/1104 cut-off events. [2022-07-19 21:20:28,795 INFO L130 PetriNetUnfolder]: For 36/65 co-relation queries the response was YES. [2022-07-19 21:20:28,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1165 conditions, 1104 events. 165/1104 cut-off events. For 36/65 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 6986 event pairs, 0 based on Foata normal form. 0/923 useless extension candidates. Maximal degree in co-relation 572. Up to 16 conditions per place. [2022-07-19 21:20:28,810 INFO L82 GeneralOperation]: Start removeDead. Operand has 329 places, 368 transitions, 778 flow [2022-07-19 21:20:28,825 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 329 places, 368 transitions, 778 flow [2022-07-19 21:20:28,838 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 21:20:28,844 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@341da245, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@67049001 [2022-07-19 21:20:28,845 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-07-19 21:20:28,855 INFO L129 PetriNetUnfolder]: 9/159 cut-off events. [2022-07-19 21:20:28,856 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-19 21:20:28,856 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:20:28,857 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, 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] [2022-07-19 21:20:28,857 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-19 21:20:28,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:20:28,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1959707075, now seen corresponding path program 1 times [2022-07-19 21:20:28,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:20:28,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631474340] [2022-07-19 21:20:28,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:20:28,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:20:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 21:20:29,053 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 21:20:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 21:20:29,109 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 21:20:29,110 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 21:20:29,111 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-07-19 21:20:29,112 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-07-19 21:20:29,112 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2022-07-19 21:20:29,113 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-07-19 21:20:29,113 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2022-07-19 21:20:29,113 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-07-19 21:20:29,113 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-07-19 21:20:29,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 21:20:29,114 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-19 21:20:29,116 WARN L231 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-19 21:20:29,116 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-07-19 21:20:29,183 INFO L135 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-07-19 21:20:29,187 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 522 places, 595 transitions, 1280 flow [2022-07-19 21:20:30,757 INFO L129 PetriNetUnfolder]: 1132/5616 cut-off events. [2022-07-19 21:20:30,758 INFO L130 PetriNetUnfolder]: For 602/794 co-relation queries the response was YES. [2022-07-19 21:20:30,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6290 conditions, 5616 events. 1132/5616 cut-off events. For 602/794 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 51722 event pairs, 22 based on Foata normal form. 0/4726 useless extension candidates. Maximal degree in co-relation 3517. Up to 192 conditions per place. [2022-07-19 21:20:30,940 INFO L82 GeneralOperation]: Start removeDead. Operand has 522 places, 595 transitions, 1280 flow [2022-07-19 21:20:31,006 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 522 places, 595 transitions, 1280 flow [2022-07-19 21:20:31,008 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 21:20:31,008 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@341da245, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@67049001 [2022-07-19 21:20:31,009 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-07-19 21:20:31,031 INFO L129 PetriNetUnfolder]: 29/391 cut-off events. [2022-07-19 21:20:31,032 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-07-19 21:20:31,032 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:20:31,032 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, 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] [2022-07-19 21:20:31,033 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-07-19 21:20:31,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:20:31,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1652026964, now seen corresponding path program 1 times [2022-07-19 21:20:31,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:20:31,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948964928] [2022-07-19 21:20:31,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:20:31,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:20:31,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 21:20:31,072 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 21:20:31,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 21:20:31,114 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 21:20:31,115 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 21:20:31,115 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2022-07-19 21:20:31,115 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2022-07-19 21:20:31,115 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2022-07-19 21:20:31,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2022-07-19 21:20:31,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2022-07-19 21:20:31,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2022-07-19 21:20:31,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2022-07-19 21:20:31,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2022-07-19 21:20:31,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2022-07-19 21:20:31,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 21:20:31,117 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-19 21:20:31,117 WARN L231 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-19 21:20:31,118 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-07-19 21:20:31,255 INFO L135 ThreadInstanceAdder]: Constructed 27 joinOtherThreadTransitions. [2022-07-19 21:20:31,262 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 715 places, 822 transitions, 1788 flow [2022-07-19 21:20:44,573 INFO L129 PetriNetUnfolder]: 8987/31908 cut-off events. [2022-07-19 21:20:44,573 INFO L130 PetriNetUnfolder]: For 7059/7576 co-relation queries the response was YES. [2022-07-19 21:20:46,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39082 conditions, 31908 events. 8987/31908 cut-off events. For 7059/7576 co-relation queries the response was YES. Maximal size of possible extension queue 504. Compared 353273 event pairs, 912 based on Foata normal form. 0/27605 useless extension candidates. Maximal degree in co-relation 20470. Up to 2304 conditions per place. [2022-07-19 21:20:46,654 INFO L82 GeneralOperation]: Start removeDead. Operand has 715 places, 822 transitions, 1788 flow [2022-07-19 21:20:47,624 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 715 places, 822 transitions, 1788 flow [2022-07-19 21:20:47,625 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 21:20:47,626 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@341da245, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@67049001 [2022-07-19 21:20:47,626 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-07-19 21:20:47,690 INFO L129 PetriNetUnfolder]: 82/908 cut-off events. [2022-07-19 21:20:47,690 INFO L130 PetriNetUnfolder]: For 33/53 co-relation queries the response was YES. [2022-07-19 21:20:47,691 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:20:47,691 INFO L200 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2022-07-19 21:20:47,691 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-07-19 21:20:47,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:20:47,692 INFO L85 PathProgramCache]: Analyzing trace with hash -786182437, now seen corresponding path program 1 times [2022-07-19 21:20:47,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:20:47,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130266254] [2022-07-19 21:20:47,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:20:47,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:20:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 21:20:47,743 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 21:20:47,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 21:20:47,792 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 21:20:47,793 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 21:20:47,793 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2022-07-19 21:20:47,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 11 remaining) [2022-07-19 21:20:47,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2022-07-19 21:20:47,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 11 remaining) [2022-07-19 21:20:47,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 11 remaining) [2022-07-19 21:20:47,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2022-07-19 21:20:47,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 11 remaining) [2022-07-19 21:20:47,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 11 remaining) [2022-07-19 21:20:47,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 11 remaining) [2022-07-19 21:20:47,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining) [2022-07-19 21:20:47,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2022-07-19 21:20:47,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 21:20:47,795 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-19 21:20:47,799 WARN L231 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-19 21:20:47,799 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-07-19 21:20:47,896 INFO L135 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2022-07-19 21:20:47,901 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 908 places, 1049 transitions, 2302 flow