./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_87-lists_racefree.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b8dbc81d 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 ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_87-lists_racefree.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 54b86d528cae3f36fe49030118864df9a90bfa303271cb05b13ff89a15d513aa --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 00:32:38,451 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 00:32:38,453 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 00:32:38,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 00:32:38,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 00:32:38,502 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 00:32:38,503 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 00:32:38,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 00:32:38,508 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 00:32:38,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 00:32:38,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 00:32:38,518 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 00:32:38,518 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 00:32:38,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 00:32:38,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 00:32:38,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 00:32:38,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 00:32:38,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 00:32:38,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 00:32:38,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 00:32:38,546 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 00:32:38,547 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 00:32:38,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 00:32:38,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 00:32:38,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 00:32:38,553 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 00:32:38,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 00:32:38,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 00:32:38,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 00:32:38,556 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 00:32:38,557 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 00:32:38,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 00:32:38,560 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 00:32:38,560 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 00:32:38,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 00:32:38,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 00:32:38,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 00:32:38,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 00:32:38,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 00:32:38,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 00:32:38,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 00:32:38,565 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-31 00:32:38,598 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 00:32:38,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 00:32:38,600 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 00:32:38,600 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 00:32:38,601 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 00:32:38,601 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 00:32:38,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 00:32:38,602 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 00:32:38,602 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 00:32:38,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 00:32:38,603 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 00:32:38,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 00:32:38,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 00:32:38,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 00:32:38,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 00:32:38,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 00:32:38,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 00:32:38,604 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 00:32:38,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 00:32:38,605 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 00:32:38,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 00:32:38,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 00:32:38,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 00:32:38,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 00:32:38,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:32:38,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 00:32:38,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 00:32:38,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 00:32:38,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 00:32:38,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 00:32:38,607 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 00:32:38,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 00:32:38,607 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 00:32:38,607 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 00:32:38,608 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 00:32:38,608 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54b86d528cae3f36fe49030118864df9a90bfa303271cb05b13ff89a15d513aa Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-31 00:32:38,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 00:32:38,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 00:32:38,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 00:32:38,976 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 00:32:38,977 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 00:32:38,978 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_87-lists_racefree.i [2023-08-31 00:32:40,079 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 00:32:40,363 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 00:32:40,363 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_87-lists_racefree.i [2023-08-31 00:32:40,382 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0420dbbdf/f93208c67a454954b7eee9782a913d82/FLAG620c528f1 [2023-08-31 00:32:40,395 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0420dbbdf/f93208c67a454954b7eee9782a913d82 [2023-08-31 00:32:40,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 00:32:40,398 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 00:32:40,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 00:32:40,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 00:32:40,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 00:32:40,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:32:40" (1/1) ... [2023-08-31 00:32:40,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dd0355b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:32:40, skipping insertion in model container [2023-08-31 00:32:40,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:32:40" (1/1) ... [2023-08-31 00:32:40,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 00:32:40,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 00:32:40,791 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_87-lists_racefree.i[47038,47051] [2023-08-31 00:32:40,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:32:40,933 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 00:32:40,988 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_87-lists_racefree.i[47038,47051] [2023-08-31 00:32:41,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:32:41,053 INFO L208 MainTranslator]: Completed translation [2023-08-31 00:32:41,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:32:41 WrapperNode [2023-08-31 00:32:41,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 00:32:41,055 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 00:32:41,055 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 00:32:41,055 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 00:32:41,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:32:41" (1/1) ... [2023-08-31 00:32:41,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:32:41" (1/1) ... [2023-08-31 00:32:41,113 INFO L138 Inliner]: procedures = 278, calls = 60, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 228 [2023-08-31 00:32:41,113 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 00:32:41,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 00:32:41,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 00:32:41,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 00:32:41,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:32:41" (1/1) ... [2023-08-31 00:32:41,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:32:41" (1/1) ... [2023-08-31 00:32:41,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:32:41" (1/1) ... [2023-08-31 00:32:41,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:32:41" (1/1) ... [2023-08-31 00:32:41,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:32:41" (1/1) ... [2023-08-31 00:32:41,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:32:41" (1/1) ... [2023-08-31 00:32:41,144 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:32:41" (1/1) ... [2023-08-31 00:32:41,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:32:41" (1/1) ... [2023-08-31 00:32:41,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 00:32:41,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 00:32:41,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 00:32:41,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 00:32:41,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:32:41" (1/1) ... [2023-08-31 00:32:41,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:32:41,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:32:41,189 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) [2023-08-31 00:32:41,209 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 [2023-08-31 00:32:41,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 00:32:41,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-31 00:32:41,236 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-08-31 00:32:41,236 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-08-31 00:32:41,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 00:32:41,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 00:32:41,238 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-08-31 00:32:41,238 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-08-31 00:32:41,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 00:32:41,238 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 00:32:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 00:32:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 00:32:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-31 00:32:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 00:32:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 00:32:41,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 00:32:41,241 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 00:32:41,470 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 00:32:41,472 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 00:32:41,821 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 00:32:41,828 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 00:32:41,828 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-08-31 00:32:41,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:32:41 BoogieIcfgContainer [2023-08-31 00:32:41,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 00:32:41,838 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 00:32:41,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 00:32:41,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 00:32:41,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 12:32:40" (1/3) ... [2023-08-31 00:32:41,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@787627bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:32:41, skipping insertion in model container [2023-08-31 00:32:41,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:32:41" (2/3) ... [2023-08-31 00:32:41,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@787627bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:32:41, skipping insertion in model container [2023-08-31 00:32:41,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:32:41" (3/3) ... [2023-08-31 00:32:41,859 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_87-lists_racefree.i [2023-08-31 00:32:41,865 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 00:32:41,872 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 00:32:41,874 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-31 00:32:41,874 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 00:32:42,025 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-31 00:32:42,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 209 places, 229 transitions, 480 flow [2023-08-31 00:32:42,186 INFO L130 PetriNetUnfolder]: 54/427 cut-off events. [2023-08-31 00:32:42,194 INFO L131 PetriNetUnfolder]: For 8/16 co-relation queries the response was YES. [2023-08-31 00:32:42,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 447 conditions, 427 events. 54/427 cut-off events. For 8/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1691 event pairs, 0 based on Foata normal form. 0/363 useless extension candidates. Maximal degree in co-relation 219. Up to 8 conditions per place. [2023-08-31 00:32:42,205 INFO L82 GeneralOperation]: Start removeDead. Operand has 209 places, 229 transitions, 480 flow [2023-08-31 00:32:42,213 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 209 places, 227 transitions, 470 flow [2023-08-31 00:32:42,217 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 00:32:42,231 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 209 places, 227 transitions, 470 flow [2023-08-31 00:32:42,237 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 209 places, 227 transitions, 470 flow [2023-08-31 00:32:42,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 209 places, 227 transitions, 470 flow [2023-08-31 00:32:42,311 INFO L130 PetriNetUnfolder]: 50/415 cut-off events. [2023-08-31 00:32:42,311 INFO L131 PetriNetUnfolder]: For 4/8 co-relation queries the response was YES. [2023-08-31 00:32:42,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 431 conditions, 415 events. 50/415 cut-off events. For 4/8 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1613 event pairs, 0 based on Foata normal form. 0/351 useless extension candidates. Maximal degree in co-relation 207. Up to 8 conditions per place. [2023-08-31 00:32:42,340 INFO L119 LiptonReduction]: Number of co-enabled transitions 15336 [2023-08-31 00:32:47,425 INFO L134 LiptonReduction]: Checked pairs total: 24023 [2023-08-31 00:32:47,425 INFO L136 LiptonReduction]: Total number of compositions: 181 [2023-08-31 00:32:47,446 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 00:32:47,453 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@c281863, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 00:32:47,453 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-31 00:32:47,460 INFO L130 PetriNetUnfolder]: 1/26 cut-off events. [2023-08-31 00:32:47,460 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:32:47,461 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:32:47,461 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2023-08-31 00:32:47,462 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-31 00:32:47,466 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:32:47,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1192865422, now seen corresponding path program 1 times [2023-08-31 00:32:47,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:32:47,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104716905] [2023-08-31 00:32:47,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:32:47,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:32:47,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:32:47,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 00:32:47,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:32:47,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104716905] [2023-08-31 00:32:47,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104716905] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:32:47,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:32:47,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 00:32:47,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229663718] [2023-08-31 00:32:47,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:32:47,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 00:32:47,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:32:47,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 00:32:47,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 00:32:47,805 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 410 [2023-08-31 00:32:47,808 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 66 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 202.66666666666666) internal successors, (608), 3 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:32:47,808 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:32:47,809 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 410 [2023-08-31 00:32:47,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:32:48,345 INFO L130 PetriNetUnfolder]: 2806/4839 cut-off events. [2023-08-31 00:32:48,345 INFO L131 PetriNetUnfolder]: For 87/87 co-relation queries the response was YES. [2023-08-31 00:32:48,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9314 conditions, 4839 events. 2806/4839 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 28373 event pairs, 2599 based on Foata normal form. 240/4248 useless extension candidates. Maximal degree in co-relation 8300. Up to 4402 conditions per place. [2023-08-31 00:32:48,362 INFO L137 encePairwiseOnDemand]: 396/410 looper letters, 45 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2023-08-31 00:32:48,363 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 56 transitions, 222 flow [2023-08-31 00:32:48,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 00:32:48,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 00:32:48,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 662 transitions. [2023-08-31 00:32:48,381 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5382113821138211 [2023-08-31 00:32:48,382 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 662 transitions. [2023-08-31 00:32:48,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 662 transitions. [2023-08-31 00:32:48,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:32:48,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 662 transitions. [2023-08-31 00:32:48,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:32:48,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 410.0) internal successors, (1640), 4 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:32:48,402 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 410.0) internal successors, (1640), 4 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:32:48,403 INFO L175 Difference]: Start difference. First operand has 55 places, 66 transitions, 148 flow. Second operand 3 states and 662 transitions. [2023-08-31 00:32:48,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 56 transitions, 222 flow [2023-08-31 00:32:48,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 56 transitions, 222 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 00:32:48,412 INFO L231 Difference]: Finished difference. Result has 58 places, 56 transitions, 138 flow [2023-08-31 00:32:48,413 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=58, PETRI_TRANSITIONS=56} [2023-08-31 00:32:48,416 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 3 predicate places. [2023-08-31 00:32:48,416 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 56 transitions, 138 flow [2023-08-31 00:32:48,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.66666666666666) internal successors, (608), 3 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:32:48,418 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:32:48,419 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-08-31 00:32:48,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 00:32:48,422 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-31 00:32:48,429 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:32:48,430 INFO L85 PathProgramCache]: Analyzing trace with hash 450522637, now seen corresponding path program 1 times [2023-08-31 00:32:48,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:32:48,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727868779] [2023-08-31 00:32:48,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:32:48,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:32:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:32:48,530 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 00:32:48,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:32:48,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727868779] [2023-08-31 00:32:48,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727868779] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 00:32:48,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010800151] [2023-08-31 00:32:48,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:32:48,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 00:32:48,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:32:48,535 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 00:32:48,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-31 00:32:48,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:32:48,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-31 00:32:48,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 00:32:48,720 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 00:32:48,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 00:32:48,743 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 00:32:48,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010800151] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 00:32:48,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 00:32:48,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-31 00:32:48,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670631925] [2023-08-31 00:32:48,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 00:32:48,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-31 00:32:48,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:32:48,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-31 00:32:48,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-31 00:32:48,785 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 410 [2023-08-31 00:32:48,787 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 56 transitions, 138 flow. Second operand has 7 states, 7 states have (on average 201.57142857142858) internal successors, (1411), 7 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:32:48,787 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:32:48,787 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 410 [2023-08-31 00:32:48,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:32:49,356 INFO L130 PetriNetUnfolder]: 2806/4842 cut-off events. [2023-08-31 00:32:49,357 INFO L131 PetriNetUnfolder]: For 87/87 co-relation queries the response was YES. [2023-08-31 00:32:49,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9330 conditions, 4842 events. 2806/4842 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 28373 event pairs, 2599 based on Foata normal form. 0/4011 useless extension candidates. Maximal degree in co-relation 9317. Up to 4402 conditions per place. [2023-08-31 00:32:49,375 INFO L137 encePairwiseOnDemand]: 407/410 looper letters, 45 selfloop transitions, 5 changer transitions 0/59 dead transitions. [2023-08-31 00:32:49,376 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 59 transitions, 250 flow [2023-08-31 00:32:49,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 00:32:49,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 00:32:49,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1253 transitions. [2023-08-31 00:32:49,380 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.509349593495935 [2023-08-31 00:32:49,380 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1253 transitions. [2023-08-31 00:32:49,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1253 transitions. [2023-08-31 00:32:49,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:32:49,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1253 transitions. [2023-08-31 00:32:49,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 208.83333333333334) internal successors, (1253), 6 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:32:49,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:32:49,389 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:32:49,390 INFO L175 Difference]: Start difference. First operand has 58 places, 56 transitions, 138 flow. Second operand 6 states and 1253 transitions. [2023-08-31 00:32:49,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 59 transitions, 250 flow [2023-08-31 00:32:49,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 59 transitions, 246 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-31 00:32:49,394 INFO L231 Difference]: Finished difference. Result has 65 places, 59 transitions, 170 flow [2023-08-31 00:32:49,394 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=170, PETRI_PLACES=65, PETRI_TRANSITIONS=59} [2023-08-31 00:32:49,395 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 10 predicate places. [2023-08-31 00:32:49,395 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 59 transitions, 170 flow [2023-08-31 00:32:49,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 201.57142857142858) internal successors, (1411), 7 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:32:49,396 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:32:49,397 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1] [2023-08-31 00:32:49,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-31 00:32:49,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 00:32:49,603 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-31 00:32:49,604 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:32:49,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1554636750, now seen corresponding path program 2 times [2023-08-31 00:32:49,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:32:49,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164642401] [2023-08-31 00:32:49,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:32:49,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:32:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:32:49,822 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 00:32:49,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:32:49,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164642401] [2023-08-31 00:32:49,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164642401] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 00:32:49,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54523086] [2023-08-31 00:32:49,823 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-31 00:32:49,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 00:32:49,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:32:49,825 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 00:32:49,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-31 00:32:49,991 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-31 00:32:49,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-31 00:32:49,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-31 00:32:49,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 00:32:50,010 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 00:32:50,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 00:32:50,078 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 00:32:50,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54523086] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 00:32:50,079 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 00:32:50,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-31 00:32:50,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175816034] [2023-08-31 00:32:50,080 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 00:32:50,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 00:32:50,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:32:50,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 00:32:50,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-31 00:32:50,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 410 [2023-08-31 00:32:50,141 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 59 transitions, 170 flow. Second operand has 13 states, 13 states have (on average 201.30769230769232) internal successors, (2617), 13 states have internal predecessors, (2617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:32:50,141 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:32:50,141 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 410 [2023-08-31 00:32:50,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:32:50,706 INFO L130 PetriNetUnfolder]: 2806/4848 cut-off events. [2023-08-31 00:32:50,706 INFO L131 PetriNetUnfolder]: For 107/107 co-relation queries the response was YES. [2023-08-31 00:32:50,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9367 conditions, 4848 events. 2806/4848 cut-off events. For 107/107 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 28355 event pairs, 2599 based on Foata normal form. 6/4024 useless extension candidates. Maximal degree in co-relation 9308. Up to 4402 conditions per place. [2023-08-31 00:32:50,725 INFO L137 encePairwiseOnDemand]: 407/410 looper letters, 45 selfloop transitions, 11 changer transitions 0/65 dead transitions. [2023-08-31 00:32:50,726 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 65 transitions, 318 flow [2023-08-31 00:32:50,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 00:32:50,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 00:32:50,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2462 transitions. [2023-08-31 00:32:50,732 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5004065040650406 [2023-08-31 00:32:50,732 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2462 transitions. [2023-08-31 00:32:50,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2462 transitions. [2023-08-31 00:32:50,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:32:50,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2462 transitions. [2023-08-31 00:32:50,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 205.16666666666666) internal successors, (2462), 12 states have internal predecessors, (2462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:32:50,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:32:50,748 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:32:50,749 INFO L175 Difference]: Start difference. First operand has 65 places, 59 transitions, 170 flow. Second operand 12 states and 2462 transitions. [2023-08-31 00:32:50,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 65 transitions, 318 flow [2023-08-31 00:32:50,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 65 transitions, 304 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-31 00:32:50,753 INFO L231 Difference]: Finished difference. Result has 81 places, 65 transitions, 240 flow [2023-08-31 00:32:50,754 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=240, PETRI_PLACES=81, PETRI_TRANSITIONS=65} [2023-08-31 00:32:50,755 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 26 predicate places. [2023-08-31 00:32:50,758 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 65 transitions, 240 flow [2023-08-31 00:32:50,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 201.30769230769232) internal successors, (2617), 13 states have internal predecessors, (2617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:32:50,760 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:32:50,760 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 1, 1, 1, 1, 1] [2023-08-31 00:32:50,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-31 00:32:50,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-08-31 00:32:50,968 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-31 00:32:50,968 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:32:50,968 INFO L85 PathProgramCache]: Analyzing trace with hash 279626322, now seen corresponding path program 3 times [2023-08-31 00:32:50,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:32:50,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687637286] [2023-08-31 00:32:50,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:32:50,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:32:51,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:32:51,480 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 00:32:51,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:32:51,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687637286] [2023-08-31 00:32:51,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687637286] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 00:32:51,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549374583] [2023-08-31 00:32:51,481 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-31 00:32:51,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 00:32:51,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:32:51,485 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 00:32:51,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-31 00:36:06,974 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-08-31 00:36:06,975 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-31 00:36:07,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-31 00:36:07,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 00:36:07,044 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 00:36:07,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 00:36:07,230 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 00:36:07,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549374583] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 00:36:07,230 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 00:36:07,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2023-08-31 00:36:07,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709228694] [2023-08-31 00:36:07,231 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 00:36:07,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-08-31 00:36:07,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:36:07,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-08-31 00:36:07,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-08-31 00:36:07,322 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 410 [2023-08-31 00:36:07,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 65 transitions, 240 flow. Second operand has 25 states, 25 states have (on average 201.16) internal successors, (5029), 25 states have internal predecessors, (5029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:36:07,327 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:36:07,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 410 [2023-08-31 00:36:07,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:36:07,996 INFO L130 PetriNetUnfolder]: 2806/4860 cut-off events. [2023-08-31 00:36:07,997 INFO L131 PetriNetUnfolder]: For 550/550 co-relation queries the response was YES. [2023-08-31 00:36:08,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9451 conditions, 4860 events. 2806/4860 cut-off events. For 550/550 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 28413 event pairs, 2599 based on Foata normal form. 12/4042 useless extension candidates. Maximal degree in co-relation 9314. Up to 4402 conditions per place. [2023-08-31 00:36:08,030 INFO L137 encePairwiseOnDemand]: 407/410 looper letters, 45 selfloop transitions, 23 changer transitions 0/77 dead transitions. [2023-08-31 00:36:08,030 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 77 transitions, 472 flow [2023-08-31 00:36:08,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-31 00:36:08,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-31 00:36:08,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4880 transitions. [2023-08-31 00:36:08,043 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4959349593495935 [2023-08-31 00:36:08,043 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4880 transitions. [2023-08-31 00:36:08,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4880 transitions. [2023-08-31 00:36:08,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:36:08,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4880 transitions. [2023-08-31 00:36:08,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 203.33333333333334) internal successors, (4880), 24 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:36:08,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 410.0) internal successors, (10250), 25 states have internal predecessors, (10250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:36:08,073 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 410.0) internal successors, (10250), 25 states have internal predecessors, (10250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:36:08,073 INFO L175 Difference]: Start difference. First operand has 81 places, 65 transitions, 240 flow. Second operand 24 states and 4880 transitions. [2023-08-31 00:36:08,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 77 transitions, 472 flow [2023-08-31 00:36:08,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 77 transitions, 400 flow, removed 31 selfloop flow, removed 5 redundant places. [2023-08-31 00:36:08,079 INFO L231 Difference]: Finished difference. Result has 111 places, 77 transitions, 360 flow [2023-08-31 00:36:08,080 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=360, PETRI_PLACES=111, PETRI_TRANSITIONS=77} [2023-08-31 00:36:08,081 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 56 predicate places. [2023-08-31 00:36:08,081 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 77 transitions, 360 flow [2023-08-31 00:36:08,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 201.16) internal successors, (5029), 25 states have internal predecessors, (5029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:36:08,084 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:36:08,085 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 2, 1, 1, 1, 1, 1] [2023-08-31 00:36:08,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-31 00:36:08,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 00:36:08,286 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-31 00:36:08,286 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:36:08,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1192738450, now seen corresponding path program 4 times [2023-08-31 00:36:08,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:36:08,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167355796] [2023-08-31 00:36:08,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:36:08,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:36:08,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:36:09,390 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 00:36:09,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:36:09,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167355796] [2023-08-31 00:36:09,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167355796] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 00:36:09,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481048408] [2023-08-31 00:36:09,391 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-31 00:36:09,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 00:36:09,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:36:09,397 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 00:36:09,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-31 00:36:09,842 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-31 00:36:09,842 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-31 00:36:09,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 1569 conjuncts, 24 conjunts are in the unsatisfiable core [2023-08-31 00:36:09,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 00:36:09,892 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 00:36:09,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 00:36:10,531 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 00:36:10,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481048408] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 00:36:10,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 00:36:10,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2023-08-31 00:36:10,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312678621] [2023-08-31 00:36:10,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 00:36:10,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-08-31 00:36:10,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:36:10,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-08-31 00:36:10,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2023-08-31 00:36:10,729 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 410 [2023-08-31 00:36:10,750 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 77 transitions, 360 flow. Second operand has 49 states, 49 states have (on average 201.08163265306123) internal successors, (9853), 49 states have internal predecessors, (9853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:36:10,751 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:36:10,751 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 410 [2023-08-31 00:36:10,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:36:11,560 INFO L130 PetriNetUnfolder]: 2806/4884 cut-off events. [2023-08-31 00:36:11,560 INFO L131 PetriNetUnfolder]: For 5320/5320 co-relation queries the response was YES. [2023-08-31 00:36:11,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9595 conditions, 4884 events. 2806/4884 cut-off events. For 5320/5320 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 28401 event pairs, 2599 based on Foata normal form. 24/4078 useless extension candidates. Maximal degree in co-relation 9326. Up to 4402 conditions per place. [2023-08-31 00:36:11,585 INFO L137 encePairwiseOnDemand]: 407/410 looper letters, 45 selfloop transitions, 47 changer transitions 0/101 dead transitions. [2023-08-31 00:36:11,586 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 101 transitions, 736 flow [2023-08-31 00:36:11,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-08-31 00:36:11,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2023-08-31 00:36:11,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 9716 transitions. [2023-08-31 00:36:11,608 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49369918699186993 [2023-08-31 00:36:11,608 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 9716 transitions. [2023-08-31 00:36:11,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 9716 transitions. [2023-08-31 00:36:11,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:36:11,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 9716 transitions. [2023-08-31 00:36:11,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 202.41666666666666) internal successors, (9716), 48 states have internal predecessors, (9716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:36:11,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 410.0) internal successors, (20090), 49 states have internal predecessors, (20090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:36:11,659 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 410.0) internal successors, (20090), 49 states have internal predecessors, (20090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:36:11,660 INFO L175 Difference]: Start difference. First operand has 111 places, 77 transitions, 360 flow. Second operand 48 states and 9716 transitions. [2023-08-31 00:36:11,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 101 transitions, 736 flow [2023-08-31 00:36:11,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 101 transitions, 592 flow, removed 61 selfloop flow, removed 11 redundant places. [2023-08-31 00:36:11,668 INFO L231 Difference]: Finished difference. Result has 171 places, 101 transitions, 600 flow [2023-08-31 00:36:11,668 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=600, PETRI_PLACES=171, PETRI_TRANSITIONS=101} [2023-08-31 00:36:11,669 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 116 predicate places. [2023-08-31 00:36:11,669 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 101 transitions, 600 flow [2023-08-31 00:36:11,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 201.08163265306123) internal successors, (9853), 49 states have internal predecessors, (9853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:36:11,671 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:36:11,672 INFO L208 CegarLoopForPetriNet]: trace histogram [46, 2, 1, 1, 1, 1, 1] [2023-08-31 00:36:11,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-31 00:36:11,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 00:36:11,879 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-31 00:36:11,880 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:36:11,880 INFO L85 PathProgramCache]: Analyzing trace with hash 553162514, now seen corresponding path program 5 times [2023-08-31 00:36:11,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:36:11,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68386127] [2023-08-31 00:36:11,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:36:11,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:36:12,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:36:15,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1083 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 00:36:15,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:36:15,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68386127] [2023-08-31 00:36:15,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68386127] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 00:36:15,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443971112] [2023-08-31 00:36:15,464 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-31 00:36:15,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 00:36:15,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:36:15,465 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 00:36:15,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process Killed by 15