./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 f4b24e32 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-?-f4b24e3 [2022-07-13 21:58:29,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 21:58:29,606 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 21:58:29,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 21:58:29,643 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 21:58:29,644 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 21:58:29,645 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 21:58:29,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 21:58:29,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 21:58:29,653 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 21:58:29,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 21:58:29,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 21:58:29,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 21:58:29,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 21:58:29,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 21:58:29,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 21:58:29,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 21:58:29,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 21:58:29,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 21:58:29,667 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 21:58:29,668 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 21:58:29,669 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 21:58:29,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 21:58:29,670 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 21:58:29,671 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 21:58:29,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 21:58:29,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 21:58:29,677 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 21:58:29,677 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 21:58:29,678 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 21:58:29,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 21:58:29,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 21:58:29,680 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 21:58:29,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 21:58:29,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 21:58:29,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 21:58:29,682 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 21:58:29,683 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 21:58:29,683 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 21:58:29,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 21:58:29,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 21:58:29,685 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 21:58:29,686 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 21:58:29,707 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 21:58:29,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 21:58:29,708 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 21:58:29,708 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 21:58:29,709 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 21:58:29,709 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 21:58:29,709 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 21:58:29,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 21:58:29,710 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 21:58:29,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 21:58:29,710 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 21:58:29,711 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 21:58:29,711 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 21:58:29,711 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 21:58:29,711 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 21:58:29,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 21:58:29,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 21:58:29,712 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 21:58:29,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 21:58:29,713 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 21:58:29,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 21:58:29,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 21:58:29,713 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 21:58:29,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 21:58:29,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:58:29,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 21:58:29,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 21:58:29,714 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 21:58:29,714 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 21:58:29,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 21:58:29,714 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 21:58:29,715 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 21:58:29,715 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 21:58:29,715 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d [2022-07-13 21:58:29,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 21:58:29,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 21:58:29,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 21:58:29,918 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 21:58:29,919 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 21:58:29,920 INFO L432 ainManager$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 [2022-07-13 21:58:29,987 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36d565664/30bd957caddd451b982abfa65cbd676f/FLAG9595e42e6 [2022-07-13 21:58:30,375 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 21:58:30,376 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i [2022-07-13 21:58:30,393 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36d565664/30bd957caddd451b982abfa65cbd676f/FLAG9595e42e6 [2022-07-13 21:58:30,742 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36d565664/30bd957caddd451b982abfa65cbd676f [2022-07-13 21:58:30,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 21:58:30,745 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 21:58:30,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 21:58:30,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 21:58:30,754 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 21:58:30,755 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:58:30" (1/1) ... [2022-07-13 21:58:30,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e04d561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:58:30, skipping insertion in model container [2022-07-13 21:58:30,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:58:30" (1/1) ... [2022-07-13 21:58:30,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 21:58:30,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 21:58:31,088 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] [2022-07-13 21:58:31,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:58:31,141 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 21:58:31,178 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] [2022-07-13 21:58:31,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:58:31,242 INFO L208 MainTranslator]: Completed translation [2022-07-13 21:58:31,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:58:31 WrapperNode [2022-07-13 21:58:31,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 21:58:31,244 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 21:58:31,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 21:58:31,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 21:58:31,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:58:31" (1/1) ... [2022-07-13 21:58:31,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:58:31" (1/1) ... [2022-07-13 21:58:31,288 INFO L137 Inliner]: procedures = 279, calls = 86, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 343 [2022-07-13 21:58:31,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 21:58:31,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 21:58:31,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 21:58:31,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 21:58:31,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:58:31" (1/1) ... [2022-07-13 21:58:31,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:58:31" (1/1) ... [2022-07-13 21:58:31,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:58:31" (1/1) ... [2022-07-13 21:58:31,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:58:31" (1/1) ... [2022-07-13 21:58:31,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:58:31" (1/1) ... [2022-07-13 21:58:31,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:58:31" (1/1) ... [2022-07-13 21:58:31,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:58:31" (1/1) ... [2022-07-13 21:58:31,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 21:58:31,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 21:58:31,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 21:58:31,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 21:58:31,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:58:31" (1/1) ... [2022-07-13 21:58:31,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:58:31,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 21:58:31,351 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) [2022-07-13 21:58:31,359 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 [2022-07-13 21:58:31,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 21:58:31,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-13 21:58:31,381 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-07-13 21:58:31,381 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-07-13 21:58:31,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 21:58:31,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 21:58:31,382 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-07-13 21:58:31,382 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-07-13 21:58:31,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 21:58:31,382 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-13 21:58:31,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-13 21:58:31,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 21:58:31,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-13 21:58:31,383 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2022-07-13 21:58:31,383 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2022-07-13 21:58:31,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 21:58:31,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 21:58:31,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 21:58:31,385 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-13 21:58:31,523 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 21:58:31,540 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 21:58:31,806 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 21:58:31,813 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 21:58:31,813 INFO L299 CfgBuilder]: Removed 28 assume(true) statements. [2022-07-13 21:58:31,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:58:31 BoogieIcfgContainer [2022-07-13 21:58:31,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 21:58:31,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 21:58:31,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 21:58:31,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 21:58:31,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 09:58:30" (1/3) ... [2022-07-13 21:58:31,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d8b475a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:58:31, skipping insertion in model container [2022-07-13 21:58:31,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:58:31" (2/3) ... [2022-07-13 21:58:31,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d8b475a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:58:31, skipping insertion in model container [2022-07-13 21:58:31,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:58:31" (3/3) ... [2022-07-13 21:58:31,822 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_83-list2_racing1.i [2022-07-13 21:58:31,826 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 21:58:31,833 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 21:58:31,833 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-13 21:58:31,833 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 21:58:31,916 INFO L135 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2022-07-13 21:58:31,943 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 329 places, 368 transitions, 778 flow [2022-07-13 21:58:32,142 INFO L129 PetriNetUnfolder]: 165/1104 cut-off events. [2022-07-13 21:58:32,142 INFO L130 PetriNetUnfolder]: For 36/65 co-relation queries the response was YES. [2022-07-13 21:58:32,161 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. [2022-07-13 21:58:32,161 INFO L82 GeneralOperation]: Start removeDead. Operand has 329 places, 368 transitions, 778 flow [2022-07-13 21:58:32,176 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 329 places, 368 transitions, 778 flow [2022-07-13 21:58:32,190 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 21:58:32,196 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@4304547e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4b7f5a96 [2022-07-13 21:58:32,196 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-07-13 21:58:32,207 INFO L129 PetriNetUnfolder]: 9/159 cut-off events. [2022-07-13 21:58:32,208 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-13 21:58:32,208 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:58:32,209 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] [2022-07-13 21:58:32,210 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)] === [2022-07-13 21:58:32,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:58:32,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1959707075, now seen corresponding path program 1 times [2022-07-13 21:58:32,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:58:32,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595887701] [2022-07-13 21:58:32,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:58:32,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:58:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:58:32,353 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 21:58:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:58:32,429 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 21:58:32,430 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 21:58:32,431 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-07-13 21:58:32,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-07-13 21:58:32,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2022-07-13 21:58:32,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-07-13 21:58:32,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2022-07-13 21:58:32,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-07-13 21:58:32,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-07-13 21:58:32,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 21:58:32,434 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-13 21:58:32,436 WARN L231 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-13 21:58:32,436 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-07-13 21:58:32,514 INFO L135 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-07-13 21:58:32,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 522 places, 595 transitions, 1280 flow [2022-07-13 21:58:34,222 INFO L129 PetriNetUnfolder]: 1132/5616 cut-off events. [2022-07-13 21:58:34,223 INFO L130 PetriNetUnfolder]: For 602/794 co-relation queries the response was YES. [2022-07-13 21:58:34,398 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. [2022-07-13 21:58:34,399 INFO L82 GeneralOperation]: Start removeDead. Operand has 522 places, 595 transitions, 1280 flow [2022-07-13 21:58:34,478 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 522 places, 595 transitions, 1280 flow [2022-07-13 21:58:34,480 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 21:58:34,480 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@4304547e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4b7f5a96 [2022-07-13 21:58:34,481 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-07-13 21:58:34,508 INFO L129 PetriNetUnfolder]: 29/391 cut-off events. [2022-07-13 21:58:34,508 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-07-13 21:58:34,508 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:58:34,509 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] [2022-07-13 21:58:34,509 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)] === [2022-07-13 21:58:34,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:58:34,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1652026964, now seen corresponding path program 1 times [2022-07-13 21:58:34,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:58:34,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444733083] [2022-07-13 21:58:34,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:58:34,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:58:34,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:58:34,600 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 21:58:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:58:34,657 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 21:58:34,657 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 21:58:34,657 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2022-07-13 21:58:34,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2022-07-13 21:58:34,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2022-07-13 21:58:34,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2022-07-13 21:58:34,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2022-07-13 21:58:34,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2022-07-13 21:58:34,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2022-07-13 21:58:34,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2022-07-13 21:58:34,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2022-07-13 21:58:34,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 21:58:34,666 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-13 21:58:34,669 WARN L231 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-13 21:58:34,670 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-07-13 21:58:34,755 INFO L135 ThreadInstanceAdder]: Constructed 27 joinOtherThreadTransitions. [2022-07-13 21:58:34,762 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 715 places, 822 transitions, 1788 flow [2022-07-13 21:58:48,438 INFO L129 PetriNetUnfolder]: 8987/31908 cut-off events. [2022-07-13 21:58:48,438 INFO L130 PetriNetUnfolder]: For 7059/7576 co-relation queries the response was YES. [2022-07-13 21:58:50,496 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. [2022-07-13 21:58:50,496 INFO L82 GeneralOperation]: Start removeDead. Operand has 715 places, 822 transitions, 1788 flow [2022-07-13 21:58:51,681 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 715 places, 822 transitions, 1788 flow [2022-07-13 21:58:51,682 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 21:58:51,683 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@4304547e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4b7f5a96 [2022-07-13 21:58:51,683 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-07-13 21:58:51,760 INFO L129 PetriNetUnfolder]: 82/908 cut-off events. [2022-07-13 21:58:51,761 INFO L130 PetriNetUnfolder]: For 33/53 co-relation queries the response was YES. [2022-07-13 21:58:51,761 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:58:51,761 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] [2022-07-13 21:58:51,761 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)] === [2022-07-13 21:58:51,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:58:51,762 INFO L85 PathProgramCache]: Analyzing trace with hash -786182437, now seen corresponding path program 1 times [2022-07-13 21:58:51,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:58:51,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881641864] [2022-07-13 21:58:51,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:58:51,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:58:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:58:51,793 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 21:58:51,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:58:51,824 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 21:58:51,824 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 21:58:51,824 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2022-07-13 21:58:51,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 11 remaining) [2022-07-13 21:58:51,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2022-07-13 21:58:51,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 11 remaining) [2022-07-13 21:58:51,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 11 remaining) [2022-07-13 21:58:51,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2022-07-13 21:58:51,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 11 remaining) [2022-07-13 21:58:51,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 11 remaining) [2022-07-13 21:58:51,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 11 remaining) [2022-07-13 21:58:51,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining) [2022-07-13 21:58:51,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2022-07-13 21:58:51,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 21:58:51,826 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-13 21:58:51,827 WARN L231 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-13 21:58:51,827 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-07-13 21:58:51,930 INFO L135 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2022-07-13 21:58:51,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 908 places, 1049 transitions, 2302 flow