./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_86-lists_racing.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_86-lists_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash db5eab03de8fef3e653289c5dcf0b220be6d8b09a4df3c07d6d5a066426e755a --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 00:31:28,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 00:31:28,199 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 00:31:28,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 00:31:28,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 00:31:28,256 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 00:31:28,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 00:31:28,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 00:31:28,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 00:31:28,268 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 00:31:28,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 00:31:28,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 00:31:28,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 00:31:28,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 00:31:28,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 00:31:28,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 00:31:28,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 00:31:28,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 00:31:28,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 00:31:28,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 00:31:28,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 00:31:28,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 00:31:28,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 00:31:28,292 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 00:31:28,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 00:31:28,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 00:31:28,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 00:31:28,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 00:31:28,303 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 00:31:28,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 00:31:28,304 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 00:31:28,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 00:31:28,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 00:31:28,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 00:31:28,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 00:31:28,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 00:31:28,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 00:31:28,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 00:31:28,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 00:31:28,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 00:31:28,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 00:31:28,312 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-31 00:31:28,341 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 00:31:28,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 00:31:28,343 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 00:31:28,343 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 00:31:28,344 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 00:31:28,344 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 00:31:28,344 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 00:31:28,345 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 00:31:28,345 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 00:31:28,345 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 00:31:28,346 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 00:31:28,346 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 00:31:28,346 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 00:31:28,346 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 00:31:28,347 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 00:31:28,347 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 00:31:28,347 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 00:31:28,347 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 00:31:28,347 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 00:31:28,347 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 00:31:28,348 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 00:31:28,348 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 00:31:28,348 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 00:31:28,348 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 00:31:28,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:31:28,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 00:31:28,349 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 00:31:28,349 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 00:31:28,349 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 00:31:28,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 00:31:28,349 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 00:31:28,350 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 00:31:28,350 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 00:31:28,350 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 00:31:28,350 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 00:31:28,350 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db5eab03de8fef3e653289c5dcf0b220be6d8b09a4df3c07d6d5a066426e755a Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-31 00:31:28,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 00:31:28,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 00:31:28,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 00:31:28,669 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 00:31:28,669 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 00:31:28,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_86-lists_racing.i [2023-08-31 00:31:29,854 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 00:31:30,120 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 00:31:30,120 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_86-lists_racing.i [2023-08-31 00:31:30,139 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06d8cbdaa/8eb183008c1f4e9995c0ce9f7aa0c05e/FLAG4d90522c3 [2023-08-31 00:31:30,152 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06d8cbdaa/8eb183008c1f4e9995c0ce9f7aa0c05e [2023-08-31 00:31:30,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 00:31:30,156 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 00:31:30,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 00:31:30,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 00:31:30,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 00:31:30,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:31:30" (1/1) ... [2023-08-31 00:31:30,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@265108b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:31:30, skipping insertion in model container [2023-08-31 00:31:30,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:31:30" (1/1) ... [2023-08-31 00:31:30,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 00:31:30,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 00:31:30,633 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_86-lists_racing.i[47038,47051] [2023-08-31 00:31:30,676 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:31:30,795 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 00:31:30,843 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_86-lists_racing.i[47038,47051] [2023-08-31 00:31:30,866 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:31:30,934 INFO L208 MainTranslator]: Completed translation [2023-08-31 00:31:30,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:31:30 WrapperNode [2023-08-31 00:31:30,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 00:31:30,936 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 00:31:30,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 00:31:30,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 00:31:30,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:31:30" (1/1) ... [2023-08-31 00:31:30,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:31:30" (1/1) ... [2023-08-31 00:31:30,997 INFO L138 Inliner]: procedures = 278, calls = 60, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 232 [2023-08-31 00:31:31,001 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 00:31:31,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 00:31:31,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 00:31:31,002 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 00:31:31,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:31:30" (1/1) ... [2023-08-31 00:31:31,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:31:30" (1/1) ... [2023-08-31 00:31:31,023 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:31:30" (1/1) ... [2023-08-31 00:31:31,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:31:30" (1/1) ... [2023-08-31 00:31:31,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:31:30" (1/1) ... [2023-08-31 00:31:31,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:31:30" (1/1) ... [2023-08-31 00:31:31,066 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:31:30" (1/1) ... [2023-08-31 00:31:31,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:31:30" (1/1) ... [2023-08-31 00:31:31,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 00:31:31,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 00:31:31,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 00:31:31,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 00:31:31,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:31:30" (1/1) ... [2023-08-31 00:31:31,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:31:31,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:31:31,118 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 00:31:31,125 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 00:31:31,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 00:31:31,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-31 00:31:31,161 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-08-31 00:31:31,162 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-08-31 00:31:31,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 00:31:31,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 00:31:31,162 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-08-31 00:31:31,162 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-08-31 00:31:31,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 00:31:31,162 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 00:31:31,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 00:31:31,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 00:31:31,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-31 00:31:31,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 00:31:31,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 00:31:31,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 00:31:31,165 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 00:31:31,385 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 00:31:31,387 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 00:31:31,766 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 00:31:31,775 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 00:31:31,775 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-08-31 00:31:31,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:31:31 BoogieIcfgContainer [2023-08-31 00:31:31,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 00:31:31,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 00:31:31,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 00:31:31,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 00:31:31,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 12:31:30" (1/3) ... [2023-08-31 00:31:31,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3556a972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:31:31, skipping insertion in model container [2023-08-31 00:31:31,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:31:30" (2/3) ... [2023-08-31 00:31:31,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3556a972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:31:31, skipping insertion in model container [2023-08-31 00:31:31,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:31:31" (3/3) ... [2023-08-31 00:31:31,786 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_86-lists_racing.i [2023-08-31 00:31:31,792 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 00:31:31,800 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 00:31:31,801 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-31 00:31:31,801 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 00:31:31,920 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-31 00:31:31,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 213 places, 233 transitions, 488 flow [2023-08-31 00:31:32,077 INFO L130 PetriNetUnfolder]: 54/435 cut-off events. [2023-08-31 00:31:32,078 INFO L131 PetriNetUnfolder]: For 8/16 co-relation queries the response was YES. [2023-08-31 00:31:32,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 435 events. 54/435 cut-off events. For 8/16 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1721 event pairs, 0 based on Foata normal form. 0/371 useless extension candidates. Maximal degree in co-relation 215. Up to 8 conditions per place. [2023-08-31 00:31:32,086 INFO L82 GeneralOperation]: Start removeDead. Operand has 213 places, 233 transitions, 488 flow [2023-08-31 00:31:32,092 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 213 places, 231 transitions, 478 flow [2023-08-31 00:31:32,095 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 00:31:32,102 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 213 places, 231 transitions, 478 flow [2023-08-31 00:31:32,105 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 213 places, 231 transitions, 478 flow [2023-08-31 00:31:32,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 213 places, 231 transitions, 478 flow [2023-08-31 00:31:32,176 INFO L130 PetriNetUnfolder]: 50/423 cut-off events. [2023-08-31 00:31:32,176 INFO L131 PetriNetUnfolder]: For 4/8 co-relation queries the response was YES. [2023-08-31 00:31:32,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 423 events. 50/423 cut-off events. For 4/8 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1639 event pairs, 0 based on Foata normal form. 0/359 useless extension candidates. Maximal degree in co-relation 211. Up to 8 conditions per place. [2023-08-31 00:31:32,193 INFO L119 LiptonReduction]: Number of co-enabled transitions 15880 [2023-08-31 00:31:37,266 INFO L134 LiptonReduction]: Checked pairs total: 24331 [2023-08-31 00:31:37,266 INFO L136 LiptonReduction]: Total number of compositions: 184 [2023-08-31 00:31:37,277 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 00:31:37,283 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;@4ce28bae, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 00:31:37,283 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-31 00:31:37,288 INFO L130 PetriNetUnfolder]: 1/27 cut-off events. [2023-08-31 00:31:37,288 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:31:37,288 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:31:37,289 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2023-08-31 00:31:37,289 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-31 00:31:37,293 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:31:37,294 INFO L85 PathProgramCache]: Analyzing trace with hash -438899358, now seen corresponding path program 1 times [2023-08-31 00:31:37,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:31:37,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016826205] [2023-08-31 00:31:37,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:31:37,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:31:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:31:37,544 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 00:31:37,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:31:37,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016826205] [2023-08-31 00:31:37,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016826205] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:31:37,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:31:37,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 00:31:37,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326291929] [2023-08-31 00:31:37,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:31:37,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 00:31:37,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:31:37,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 00:31:37,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 00:31:37,604 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 417 [2023-08-31 00:31:37,610 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 65 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 206.66666666666666) internal successors, (620), 3 states have internal predecessors, (620), 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 00:31:37,610 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:31:37,610 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 417 [2023-08-31 00:31:37,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:31:38,257 INFO L130 PetriNetUnfolder]: 3305/5516 cut-off events. [2023-08-31 00:31:38,258 INFO L131 PetriNetUnfolder]: For 86/86 co-relation queries the response was YES. [2023-08-31 00:31:38,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10754 conditions, 5516 events. 3305/5516 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 30891 event pairs, 3078 based on Foata normal form. 276/4857 useless extension candidates. Maximal degree in co-relation 9713. Up to 5166 conditions per place. [2023-08-31 00:31:38,280 INFO L137 encePairwiseOnDemand]: 403/417 looper letters, 47 selfloop transitions, 2 changer transitions 0/55 dead transitions. [2023-08-31 00:31:38,281 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 55 transitions, 224 flow [2023-08-31 00:31:38,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 00:31:38,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 00:31:38,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 676 transitions. [2023-08-31 00:31:38,299 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5403677058353318 [2023-08-31 00:31:38,300 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 676 transitions. [2023-08-31 00:31:38,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 676 transitions. [2023-08-31 00:31:38,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:31:38,305 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 676 transitions. [2023-08-31 00:31:38,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 225.33333333333334) internal successors, (676), 3 states have internal predecessors, (676), 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 00:31:38,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 417.0) internal successors, (1668), 4 states have internal predecessors, (1668), 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 00:31:38,318 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 417.0) internal successors, (1668), 4 states have internal predecessors, (1668), 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 00:31:38,319 INFO L175 Difference]: Start difference. First operand has 54 places, 65 transitions, 146 flow. Second operand 3 states and 676 transitions. [2023-08-31 00:31:38,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 55 transitions, 224 flow [2023-08-31 00:31:38,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 55 transitions, 224 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 00:31:38,328 INFO L231 Difference]: Finished difference. Result has 57 places, 55 transitions, 136 flow [2023-08-31 00:31:38,329 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=417, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=57, PETRI_TRANSITIONS=55} [2023-08-31 00:31:38,332 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 3 predicate places. [2023-08-31 00:31:38,333 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 55 transitions, 136 flow [2023-08-31 00:31:38,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.66666666666666) internal successors, (620), 3 states have internal predecessors, (620), 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 00:31:38,335 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:31:38,335 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-08-31 00:31:38,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 00:31:38,338 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-31 00:31:38,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:31:38,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1830623665, now seen corresponding path program 1 times [2023-08-31 00:31:38,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:31:38,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471114760] [2023-08-31 00:31:38,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:31:38,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:31:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:31:38,454 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 00:31:38,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:31:38,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471114760] [2023-08-31 00:31:38,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471114760] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 00:31:38,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222326041] [2023-08-31 00:31:38,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:31:38,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 00:31:38,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:31:38,458 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 00:31:38,483 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 00:31:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:31:38,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-31 00:31:38,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 00:31:38,663 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 00:31:38,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 00:31:38,677 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 00:31:38,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222326041] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 00:31:38,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 00:31:38,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-31 00:31:38,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201194533] [2023-08-31 00:31:38,685 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 00:31:38,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-31 00:31:38,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:31:38,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-31 00:31:38,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-31 00:31:38,710 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 417 [2023-08-31 00:31:38,712 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 55 transitions, 136 flow. Second operand has 7 states, 7 states have (on average 205.57142857142858) internal successors, (1439), 7 states have internal predecessors, (1439), 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 00:31:38,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:31:38,717 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 417 [2023-08-31 00:31:38,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:31:39,315 INFO L130 PetriNetUnfolder]: 3305/5519 cut-off events. [2023-08-31 00:31:39,316 INFO L131 PetriNetUnfolder]: For 86/86 co-relation queries the response was YES. [2023-08-31 00:31:39,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10770 conditions, 5519 events. 3305/5519 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 30887 event pairs, 3078 based on Foata normal form. 0/4584 useless extension candidates. Maximal degree in co-relation 10757. Up to 5166 conditions per place. [2023-08-31 00:31:39,335 INFO L137 encePairwiseOnDemand]: 414/417 looper letters, 47 selfloop transitions, 5 changer transitions 0/58 dead transitions. [2023-08-31 00:31:39,335 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 58 transitions, 252 flow [2023-08-31 00:31:39,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 00:31:39,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 00:31:39,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1279 transitions. [2023-08-31 00:31:39,339 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5111910471622702 [2023-08-31 00:31:39,339 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1279 transitions. [2023-08-31 00:31:39,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1279 transitions. [2023-08-31 00:31:39,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:31:39,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1279 transitions. [2023-08-31 00:31:39,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 213.16666666666666) internal successors, (1279), 6 states have internal predecessors, (1279), 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 00:31:39,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 417.0) internal successors, (2919), 7 states have internal predecessors, (2919), 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 00:31:39,348 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 417.0) internal successors, (2919), 7 states have internal predecessors, (2919), 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 00:31:39,348 INFO L175 Difference]: Start difference. First operand has 57 places, 55 transitions, 136 flow. Second operand 6 states and 1279 transitions. [2023-08-31 00:31:39,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 58 transitions, 252 flow [2023-08-31 00:31:39,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 58 transitions, 248 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-31 00:31:39,352 INFO L231 Difference]: Finished difference. Result has 64 places, 58 transitions, 168 flow [2023-08-31 00:31:39,353 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=417, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=168, PETRI_PLACES=64, PETRI_TRANSITIONS=58} [2023-08-31 00:31:39,353 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 10 predicate places. [2023-08-31 00:31:39,354 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 58 transitions, 168 flow [2023-08-31 00:31:39,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 205.57142857142858) internal successors, (1439), 7 states have internal predecessors, (1439), 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 00:31:39,355 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:31:39,355 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1] [2023-08-31 00:31:39,372 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 00:31:39,566 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 00:31:39,567 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-31 00:31:39,567 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:31:39,567 INFO L85 PathProgramCache]: Analyzing trace with hash -981188446, now seen corresponding path program 2 times [2023-08-31 00:31:39,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:31:39,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757182653] [2023-08-31 00:31:39,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:31:39,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:31:39,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:31:39,802 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 00:31:39,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:31:39,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757182653] [2023-08-31 00:31:39,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757182653] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 00:31:39,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557139226] [2023-08-31 00:31:39,803 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-31 00:31:39,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 00:31:39,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:31:39,805 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 00:31:39,815 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 00:31:39,966 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-31 00:31:39,967 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-31 00:31:39,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-31 00:31:39,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 00:31:39,992 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 00:31:39,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 00:31:40,043 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 00:31:40,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557139226] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 00:31:40,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 00:31:40,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-31 00:31:40,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652241487] [2023-08-31 00:31:40,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 00:31:40,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 00:31:40,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:31:40,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 00:31:40,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-31 00:31:40,105 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 417 [2023-08-31 00:31:40,108 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 58 transitions, 168 flow. Second operand has 13 states, 13 states have (on average 205.30769230769232) internal successors, (2669), 13 states have internal predecessors, (2669), 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 00:31:40,108 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:31:40,108 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 417 [2023-08-31 00:31:40,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:31:40,857 INFO L130 PetriNetUnfolder]: 3305/5525 cut-off events. [2023-08-31 00:31:40,858 INFO L131 PetriNetUnfolder]: For 106/106 co-relation queries the response was YES. [2023-08-31 00:31:40,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10807 conditions, 5525 events. 3305/5525 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 30908 event pairs, 3078 based on Foata normal form. 6/4597 useless extension candidates. Maximal degree in co-relation 10748. Up to 5166 conditions per place. [2023-08-31 00:31:40,879 INFO L137 encePairwiseOnDemand]: 414/417 looper letters, 47 selfloop transitions, 11 changer transitions 0/64 dead transitions. [2023-08-31 00:31:40,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 64 transitions, 320 flow [2023-08-31 00:31:40,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 00:31:40,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 00:31:40,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2512 transitions. [2023-08-31 00:31:40,886 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5019984012789768 [2023-08-31 00:31:40,886 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2512 transitions. [2023-08-31 00:31:40,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2512 transitions. [2023-08-31 00:31:40,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:31:40,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2512 transitions. [2023-08-31 00:31:40,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 209.33333333333334) internal successors, (2512), 12 states have internal predecessors, (2512), 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 00:31:40,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 417.0) internal successors, (5421), 13 states have internal predecessors, (5421), 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 00:31:40,904 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 417.0) internal successors, (5421), 13 states have internal predecessors, (5421), 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 00:31:40,904 INFO L175 Difference]: Start difference. First operand has 64 places, 58 transitions, 168 flow. Second operand 12 states and 2512 transitions. [2023-08-31 00:31:40,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 64 transitions, 320 flow [2023-08-31 00:31:40,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 64 transitions, 306 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-31 00:31:40,910 INFO L231 Difference]: Finished difference. Result has 80 places, 64 transitions, 238 flow [2023-08-31 00:31:40,911 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=417, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=238, PETRI_PLACES=80, PETRI_TRANSITIONS=64} [2023-08-31 00:31:40,912 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 26 predicate places. [2023-08-31 00:31:40,915 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 64 transitions, 238 flow [2023-08-31 00:31:40,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 205.30769230769232) internal successors, (2669), 13 states have internal predecessors, (2669), 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 00:31:40,917 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:31:40,918 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 1, 1, 1, 1, 1] [2023-08-31 00:31:40,928 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 00:31:41,124 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 00:31:41,124 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-31 00:31:41,125 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:31:41,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1179815550, now seen corresponding path program 3 times [2023-08-31 00:31:41,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:31:41,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130168454] [2023-08-31 00:31:41,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:31:41,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:31:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:31:41,514 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 00:31:41,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:31:41,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130168454] [2023-08-31 00:31:41,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130168454] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 00:31:41,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891468324] [2023-08-31 00:31:41,516 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-31 00:31:41,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 00:31:41,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:31:41,517 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 00:31:41,543 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 00:36:54,276 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-08-31 00:36:54,277 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-31 00:36:54,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-31 00:36:54,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 00:36:54,389 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 00:36:54,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 00:36:54,597 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 00:36:54,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891468324] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 00:36:54,598 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 00:36:54,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2023-08-31 00:36:54,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539293268] [2023-08-31 00:36:54,599 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 00:36:54,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-08-31 00:36:54,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:36:54,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-08-31 00:36:54,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-08-31 00:36:54,696 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 417 [2023-08-31 00:36:54,701 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 64 transitions, 238 flow. Second operand has 25 states, 25 states have (on average 205.16) internal successors, (5129), 25 states have internal predecessors, (5129), 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 00:36:54,701 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:36:54,701 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 417 [2023-08-31 00:36:54,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:36:55,496 INFO L130 PetriNetUnfolder]: 3305/5537 cut-off events. [2023-08-31 00:36:55,496 INFO L131 PetriNetUnfolder]: For 549/549 co-relation queries the response was YES. [2023-08-31 00:36:55,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10891 conditions, 5537 events. 3305/5537 cut-off events. For 549/549 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 30907 event pairs, 3078 based on Foata normal form. 12/4615 useless extension candidates. Maximal degree in co-relation 10754. Up to 5166 conditions per place. [2023-08-31 00:36:55,520 INFO L137 encePairwiseOnDemand]: 414/417 looper letters, 47 selfloop transitions, 23 changer transitions 0/76 dead transitions. [2023-08-31 00:36:55,520 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 76 transitions, 474 flow [2023-08-31 00:36:55,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-31 00:36:55,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-31 00:36:55,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4978 transitions. [2023-08-31 00:36:55,536 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49740207833733013 [2023-08-31 00:36:55,536 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4978 transitions. [2023-08-31 00:36:55,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4978 transitions. [2023-08-31 00:36:55,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:36:55,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4978 transitions. [2023-08-31 00:36:55,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 207.41666666666666) internal successors, (4978), 24 states have internal predecessors, (4978), 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 00:36:55,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 417.0) internal successors, (10425), 25 states have internal predecessors, (10425), 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 00:36:55,567 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 417.0) internal successors, (10425), 25 states have internal predecessors, (10425), 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 00:36:55,568 INFO L175 Difference]: Start difference. First operand has 80 places, 64 transitions, 238 flow. Second operand 24 states and 4978 transitions. [2023-08-31 00:36:55,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 76 transitions, 474 flow [2023-08-31 00:36:55,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 76 transitions, 402 flow, removed 31 selfloop flow, removed 5 redundant places. [2023-08-31 00:36:55,574 INFO L231 Difference]: Finished difference. Result has 110 places, 76 transitions, 358 flow [2023-08-31 00:36:55,574 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=417, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=358, PETRI_PLACES=110, PETRI_TRANSITIONS=76} [2023-08-31 00:36:55,575 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 56 predicate places. [2023-08-31 00:36:55,575 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 76 transitions, 358 flow [2023-08-31 00:36:55,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 205.16) internal successors, (5129), 25 states have internal predecessors, (5129), 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 00:36:55,578 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:36:55,578 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 2, 1, 1, 1, 1, 1] [2023-08-31 00:36:55,623 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 00:36:55,804 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 00:36:55,805 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-31 00:36:55,805 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:36:55,805 INFO L85 PathProgramCache]: Analyzing trace with hash -500343998, now seen corresponding path program 4 times [2023-08-31 00:36:55,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:36:55,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073801633] [2023-08-31 00:36:55,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:36:55,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:36:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:36:56,903 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 00:36:56,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:36:56,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073801633] [2023-08-31 00:36:56,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073801633] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 00:36:56,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513380510] [2023-08-31 00:36:56,904 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-31 00:36:56,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 00:36:56,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:36:56,906 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 00:36:56,911 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 00:36:57,317 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-31 00:36:57,317 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-31 00:36:57,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 1569 conjuncts, 24 conjunts are in the unsatisfiable core [2023-08-31 00:36:57,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 00:36:57,380 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 00:36:57,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 00:36:58,004 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 00:36:58,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513380510] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 00:36:58,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 00:36:58,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2023-08-31 00:36:58,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563574894] [2023-08-31 00:36:58,005 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 00:36:58,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-08-31 00:36:58,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:36:58,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-08-31 00:36:58,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2023-08-31 00:36:58,199 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 417 [2023-08-31 00:36:58,208 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 76 transitions, 358 flow. Second operand has 49 states, 49 states have (on average 205.08163265306123) internal successors, (10049), 49 states have internal predecessors, (10049), 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 00:36:58,208 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:36:58,208 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 417 [2023-08-31 00:36:58,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:36:59,201 INFO L130 PetriNetUnfolder]: 3305/5561 cut-off events. [2023-08-31 00:36:59,201 INFO L131 PetriNetUnfolder]: For 5319/5319 co-relation queries the response was YES. [2023-08-31 00:36:59,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11035 conditions, 5561 events. 3305/5561 cut-off events. For 5319/5319 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 30903 event pairs, 3078 based on Foata normal form. 24/4651 useless extension candidates. Maximal degree in co-relation 10766. Up to 5166 conditions per place. [2023-08-31 00:36:59,228 INFO L137 encePairwiseOnDemand]: 414/417 looper letters, 47 selfloop transitions, 47 changer transitions 0/100 dead transitions. [2023-08-31 00:36:59,228 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 100 transitions, 738 flow [2023-08-31 00:36:59,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-08-31 00:36:59,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2023-08-31 00:36:59,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 9910 transitions. [2023-08-31 00:36:59,247 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4951039168665068 [2023-08-31 00:36:59,247 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 9910 transitions. [2023-08-31 00:36:59,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 9910 transitions. [2023-08-31 00:36:59,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:36:59,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 9910 transitions. [2023-08-31 00:36:59,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 206.45833333333334) internal successors, (9910), 48 states have internal predecessors, (9910), 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 00:36:59,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 417.0) internal successors, (20433), 49 states have internal predecessors, (20433), 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 00:36:59,292 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 417.0) internal successors, (20433), 49 states have internal predecessors, (20433), 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 00:36:59,292 INFO L175 Difference]: Start difference. First operand has 110 places, 76 transitions, 358 flow. Second operand 48 states and 9910 transitions. [2023-08-31 00:36:59,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 100 transitions, 738 flow [2023-08-31 00:36:59,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 100 transitions, 594 flow, removed 61 selfloop flow, removed 11 redundant places. [2023-08-31 00:36:59,300 INFO L231 Difference]: Finished difference. Result has 170 places, 100 transitions, 598 flow [2023-08-31 00:36:59,300 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=417, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=598, PETRI_PLACES=170, PETRI_TRANSITIONS=100} [2023-08-31 00:36:59,301 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 116 predicate places. [2023-08-31 00:36:59,301 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 100 transitions, 598 flow [2023-08-31 00:36:59,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 205.08163265306123) internal successors, (10049), 49 states have internal predecessors, (10049), 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 00:36:59,304 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:36:59,304 INFO L208 CegarLoopForPetriNet]: trace histogram [46, 2, 1, 1, 1, 1, 1] [2023-08-31 00:36:59,312 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-08-31 00:36:59,512 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 00:36:59,512 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-31 00:36:59,513 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:36:59,513 INFO L85 PathProgramCache]: Analyzing trace with hash -584364350, now seen corresponding path program 5 times [2023-08-31 00:36:59,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:36:59,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748023806] [2023-08-31 00:36:59,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:36:59,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:36:59,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:37:02,844 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 00:37:02,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:37:02,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748023806] [2023-08-31 00:37:02,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748023806] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 00:37:02,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529318781] [2023-08-31 00:37:02,845 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-31 00:37:02,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 00:37:02,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:37:02,846 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 00:37:02,847 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