./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 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_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-?-791161d [2022-07-22 21:35:14,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 21:35:14,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 21:35:14,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 21:35:14,477 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 21:35:14,478 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 21:35:14,479 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 21:35:14,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 21:35:14,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 21:35:14,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 21:35:14,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 21:35:14,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 21:35:14,492 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 21:35:14,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 21:35:14,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 21:35:14,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 21:35:14,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 21:35:14,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 21:35:14,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 21:35:14,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 21:35:14,500 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 21:35:14,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 21:35:14,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 21:35:14,507 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 21:35:14,507 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 21:35:14,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 21:35:14,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 21:35:14,510 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 21:35:14,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 21:35:14,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 21:35:14,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 21:35:14,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 21:35:14,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 21:35:14,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 21:35:14,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 21:35:14,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 21:35:14,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 21:35:14,519 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 21:35:14,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 21:35:14,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 21:35:14,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 21:35:14,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 21:35:14,523 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 21:35:14,559 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 21:35:14,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 21:35:14,560 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 21:35:14,560 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 21:35:14,560 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 21:35:14,561 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 21:35:14,561 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 21:35:14,561 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 21:35:14,561 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 21:35:14,562 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 21:35:14,562 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 21:35:14,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 21:35:14,562 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 21:35:14,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 21:35:14,562 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 21:35:14,563 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 21:35:14,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 21:35:14,563 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 21:35:14,563 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 21:35:14,564 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 21:35:14,564 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 21:35:14,565 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 21:35:14,565 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 21:35:14,565 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 21:35:14,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 21:35:14,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 21:35:14,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 21:35:14,566 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 21:35:14,566 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 21:35:14,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 21:35:14,566 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 21:35:14,566 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 21:35:14,566 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 21:35:14,567 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d [2022-07-22 21:35:14,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 21:35:14,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 21:35:14,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 21:35:14,742 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 21:35:14,743 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 21:35:14,744 INFO L432 ainManager$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 [2022-07-22 21:35:14,795 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc7a9b4b5/85575cfb93d9412ca75926919c57f9e1/FLAG152168efb [2022-07-22 21:35:15,200 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 21:35:15,201 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i [2022-07-22 21:35:15,216 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc7a9b4b5/85575cfb93d9412ca75926919c57f9e1/FLAG152168efb [2022-07-22 21:35:15,224 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc7a9b4b5/85575cfb93d9412ca75926919c57f9e1 [2022-07-22 21:35:15,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 21:35:15,227 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 21:35:15,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 21:35:15,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 21:35:15,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 21:35:15,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 09:35:15" (1/1) ... [2022-07-22 21:35:15,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3961f2ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:35:15, skipping insertion in model container [2022-07-22 21:35:15,232 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 09:35:15" (1/1) ... [2022-07-22 21:35:15,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 21:35:15,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 21:35:15,622 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] [2022-07-22 21:35:15,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 21:35:15,681 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 21:35:15,705 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] [2022-07-22 21:35:15,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 21:35:15,765 INFO L208 MainTranslator]: Completed translation [2022-07-22 21:35:15,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:35:15 WrapperNode [2022-07-22 21:35:15,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 21:35:15,767 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 21:35:15,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 21:35:15,767 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 21:35:15,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:35:15" (1/1) ... [2022-07-22 21:35:15,790 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:35:15" (1/1) ... [2022-07-22 21:35:15,818 INFO L137 Inliner]: procedures = 279, calls = 86, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 343 [2022-07-22 21:35:15,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 21:35:15,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 21:35:15,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 21:35:15,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 21:35:15,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:35:15" (1/1) ... [2022-07-22 21:35:15,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:35:15" (1/1) ... [2022-07-22 21:35:15,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:35:15" (1/1) ... [2022-07-22 21:35:15,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:35:15" (1/1) ... [2022-07-22 21:35:15,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:35:15" (1/1) ... [2022-07-22 21:35:15,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:35:15" (1/1) ... [2022-07-22 21:35:15,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:35:15" (1/1) ... [2022-07-22 21:35:15,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 21:35:15,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 21:35:15,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 21:35:15,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 21:35:15,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:35:15" (1/1) ... [2022-07-22 21:35:15,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 21:35:15,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 21:35:15,889 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 21:35:15,916 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 21:35:15,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 21:35:15,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 21:35:15,931 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-07-22 21:35:15,931 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-07-22 21:35:15,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 21:35:15,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 21:35:15,932 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-07-22 21:35:15,932 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-07-22 21:35:15,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 21:35:15,932 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-22 21:35:15,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 21:35:15,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 21:35:15,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 21:35:15,932 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2022-07-22 21:35:15,932 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2022-07-22 21:35:15,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 21:35:15,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 21:35:15,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 21:35:15,934 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 21:35:16,044 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 21:35:16,045 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 21:35:16,406 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 21:35:16,414 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 21:35:16,414 INFO L299 CfgBuilder]: Removed 28 assume(true) statements. [2022-07-22 21:35:16,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:35:16 BoogieIcfgContainer [2022-07-22 21:35:16,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 21:35:16,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 21:35:16,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 21:35:16,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 21:35:16,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 09:35:15" (1/3) ... [2022-07-22 21:35:16,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab482dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 09:35:16, skipping insertion in model container [2022-07-22 21:35:16,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:35:15" (2/3) ... [2022-07-22 21:35:16,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab482dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 09:35:16, skipping insertion in model container [2022-07-22 21:35:16,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:35:16" (3/3) ... [2022-07-22 21:35:16,422 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_83-list2_racing1.i [2022-07-22 21:35:16,426 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-22 21:35:16,432 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 21:35:16,433 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-22 21:35:16,433 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-22 21:35:16,498 INFO L135 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2022-07-22 21:35:16,528 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 329 places, 368 transitions, 778 flow [2022-07-22 21:35:16,724 INFO L129 PetriNetUnfolder]: 165/1104 cut-off events. [2022-07-22 21:35:16,725 INFO L130 PetriNetUnfolder]: For 36/65 co-relation queries the response was YES. [2022-07-22 21:35:16,741 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. [2022-07-22 21:35:16,741 INFO L82 GeneralOperation]: Start removeDead. Operand has 329 places, 368 transitions, 778 flow [2022-07-22 21:35:16,755 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 329 places, 368 transitions, 778 flow [2022-07-22 21:35:16,776 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 21:35:16,782 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@4e39cd18, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@577eb64 [2022-07-22 21:35:16,782 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-07-22 21:35:16,795 INFO L129 PetriNetUnfolder]: 9/159 cut-off events. [2022-07-22 21:35:16,795 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-22 21:35:16,796 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:35:16,797 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] [2022-07-22 21:35:16,797 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)] === [2022-07-22 21:35:16,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:35:16,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1959707075, now seen corresponding path program 1 times [2022-07-22 21:35:16,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:35:16,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050284252] [2022-07-22 21:35:16,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:35:16,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:35:16,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 21:35:16,999 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 21:35:17,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 21:35:17,059 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 21:35:17,061 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 21:35:17,062 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-07-22 21:35:17,064 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-07-22 21:35:17,064 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2022-07-22 21:35:17,064 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-07-22 21:35:17,064 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2022-07-22 21:35:17,065 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-07-22 21:35:17,065 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-07-22 21:35:17,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 21:35:17,066 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-22 21:35:17,068 WARN L231 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-22 21:35:17,068 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-07-22 21:35:17,154 INFO L135 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-07-22 21:35:17,158 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 522 places, 595 transitions, 1280 flow [2022-07-22 21:35:18,867 INFO L129 PetriNetUnfolder]: 1132/5616 cut-off events. [2022-07-22 21:35:18,867 INFO L130 PetriNetUnfolder]: For 602/794 co-relation queries the response was YES. [2022-07-22 21:35:19,111 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. [2022-07-22 21:35:19,112 INFO L82 GeneralOperation]: Start removeDead. Operand has 522 places, 595 transitions, 1280 flow [2022-07-22 21:35:19,184 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 522 places, 595 transitions, 1280 flow [2022-07-22 21:35:19,186 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 21:35:19,190 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@4e39cd18, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@577eb64 [2022-07-22 21:35:19,191 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-07-22 21:35:19,214 INFO L129 PetriNetUnfolder]: 29/391 cut-off events. [2022-07-22 21:35:19,215 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-07-22 21:35:19,215 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:35:19,216 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] [2022-07-22 21:35:19,217 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)] === [2022-07-22 21:35:19,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:35:19,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1652026964, now seen corresponding path program 1 times [2022-07-22 21:35:19,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:35:19,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48008560] [2022-07-22 21:35:19,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:35:19,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:35:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 21:35:19,305 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 21:35:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 21:35:19,342 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 21:35:19,342 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 21:35:19,342 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2022-07-22 21:35:19,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2022-07-22 21:35:19,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2022-07-22 21:35:19,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2022-07-22 21:35:19,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2022-07-22 21:35:19,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2022-07-22 21:35:19,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2022-07-22 21:35:19,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2022-07-22 21:35:19,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2022-07-22 21:35:19,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 21:35:19,344 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-22 21:35:19,344 WARN L231 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-22 21:35:19,344 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-07-22 21:35:19,446 INFO L135 ThreadInstanceAdder]: Constructed 27 joinOtherThreadTransitions. [2022-07-22 21:35:19,452 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 715 places, 822 transitions, 1788 flow [2022-07-22 21:35:33,700 INFO L129 PetriNetUnfolder]: 8987/31908 cut-off events. [2022-07-22 21:35:33,701 INFO L130 PetriNetUnfolder]: For 7059/7576 co-relation queries the response was YES. [2022-07-22 21:35:35,954 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. [2022-07-22 21:35:35,955 INFO L82 GeneralOperation]: Start removeDead. Operand has 715 places, 822 transitions, 1788 flow [2022-07-22 21:35:36,969 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 715 places, 822 transitions, 1788 flow [2022-07-22 21:35:36,970 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 21:35:36,971 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@4e39cd18, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@577eb64 [2022-07-22 21:35:36,971 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-07-22 21:35:37,035 INFO L129 PetriNetUnfolder]: 82/908 cut-off events. [2022-07-22 21:35:37,035 INFO L130 PetriNetUnfolder]: For 33/53 co-relation queries the response was YES. [2022-07-22 21:35:37,035 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:35:37,035 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] [2022-07-22 21:35:37,036 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)] === [2022-07-22 21:35:37,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:35:37,036 INFO L85 PathProgramCache]: Analyzing trace with hash -786182437, now seen corresponding path program 1 times [2022-07-22 21:35:37,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:35:37,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512631828] [2022-07-22 21:35:37,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:35:37,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:35:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 21:35:37,066 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 21:35:37,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 21:35:37,095 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 21:35:37,095 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 21:35:37,095 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2022-07-22 21:35:37,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 11 remaining) [2022-07-22 21:35:37,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2022-07-22 21:35:37,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 11 remaining) [2022-07-22 21:35:37,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 11 remaining) [2022-07-22 21:35:37,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2022-07-22 21:35:37,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 11 remaining) [2022-07-22 21:35:37,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 11 remaining) [2022-07-22 21:35:37,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 11 remaining) [2022-07-22 21:35:37,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining) [2022-07-22 21:35:37,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2022-07-22 21:35:37,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 21:35:37,097 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-22 21:35:37,098 WARN L231 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-22 21:35:37,098 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-07-22 21:35:37,180 INFO L135 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2022-07-22 21:35:37,186 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 908 places, 1049 transitions, 2302 flow