./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_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 --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 f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 09:33:10,034 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 09:33:10,109 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 09:33:10,127 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 09:33:10,128 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 09:33:10,157 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 09:33:10,158 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 09:33:10,158 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 09:33:10,159 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 09:33:10,160 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 09:33:10,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 09:33:10,161 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 09:33:10,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 09:33:10,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 09:33:10,165 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 09:33:10,166 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 09:33:10,166 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 09:33:10,166 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 09:33:10,166 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 09:33:10,167 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 09:33:10,167 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 09:33:10,168 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 09:33:10,168 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 09:33:10,168 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 09:33:10,168 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 09:33:10,168 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 09:33:10,169 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 09:33:10,169 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 09:33:10,169 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 09:33:10,169 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 09:33:10,170 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 09:33:10,170 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 09:33:10,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:33:10,170 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 09:33:10,171 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 09:33:10,171 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 09:33:10,174 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 09:33:10,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 09:33:10,175 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 09:33:10,175 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 09:33:10,175 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 09:33:10,176 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 09:33:10,176 INFO L153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af [2024-11-20 09:33:10,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 09:33:10,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 09:33:10,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 09:33:10,484 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 09:33:10,485 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 09:33:10,486 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-11-20 09:33:12,019 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 09:33:12,325 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 09:33:12,327 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-11-20 09:33:12,354 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d13e8eeb6/72998ea2232245f0a38ff33c050582d7/FLAGe9f05a162 [2024-11-20 09:33:12,371 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d13e8eeb6/72998ea2232245f0a38ff33c050582d7 [2024-11-20 09:33:12,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 09:33:12,376 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 09:33:12,380 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 09:33:12,380 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 09:33:12,385 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 09:33:12,387 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:33:12" (1/1) ... [2024-11-20 09:33:12,389 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18c78109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:12, skipping insertion in model container [2024-11-20 09:33:12,390 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:33:12" (1/1) ... [2024-11-20 09:33:12,449 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 09:33:12,954 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i[47038,47051] [2024-11-20 09:33:12,976 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-20 09:33:12,976 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-20 09:33:12,977 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-20 09:33:12,978 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-20 09:33:13,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:33:13,086 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 09:33:13,126 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i[47038,47051] [2024-11-20 09:33:13,131 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-20 09:33:13,131 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-20 09:33:13,132 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-20 09:33:13,132 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-20 09:33:13,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:33:13,232 INFO L204 MainTranslator]: Completed translation [2024-11-20 09:33:13,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:13 WrapperNode [2024-11-20 09:33:13,232 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 09:33:13,234 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 09:33:13,234 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 09:33:13,234 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 09:33:13,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:13" (1/1) ... [2024-11-20 09:33:13,265 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:13" (1/1) ... [2024-11-20 09:33:13,310 INFO L138 Inliner]: procedures = 280, calls = 142, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 394 [2024-11-20 09:33:13,311 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 09:33:13,315 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 09:33:13,316 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 09:33:13,316 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 09:33:13,328 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:13" (1/1) ... [2024-11-20 09:33:13,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:13" (1/1) ... [2024-11-20 09:33:13,340 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:13" (1/1) ... [2024-11-20 09:33:13,392 INFO L175 MemorySlicer]: Split 105 memory accesses to 5 slices as follows [2, 5, 2, 94, 2]. 90 percent of accesses are in the largest equivalence class. The 77 initializations are split as follows [2, 5, 0, 70, 0]. The 15 writes are split as follows [0, 0, 1, 13, 1]. [2024-11-20 09:33:13,392 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:13" (1/1) ... [2024-11-20 09:33:13,393 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:13" (1/1) ... [2024-11-20 09:33:13,414 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:13" (1/1) ... [2024-11-20 09:33:13,419 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:13" (1/1) ... [2024-11-20 09:33:13,425 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:13" (1/1) ... [2024-11-20 09:33:13,432 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:13" (1/1) ... [2024-11-20 09:33:13,441 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 09:33:13,442 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 09:33:13,444 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 09:33:13,444 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 09:33:13,445 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:13" (1/1) ... [2024-11-20 09:33:13,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:33:13,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:33:13,488 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 09:33:13,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 09:33:13,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 09:33:13,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 09:33:13,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 09:33:13,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-20 09:33:13,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-20 09:33:13,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-20 09:33:13,542 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-20 09:33:13,543 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-20 09:33:13,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 09:33:13,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-20 09:33:13,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-20 09:33:13,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-20 09:33:13,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-20 09:33:13,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-20 09:33:13,543 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 09:33:13,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 09:33:13,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 09:33:13,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 09:33:13,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 09:33:13,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 09:33:13,544 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-20 09:33:13,544 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-20 09:33:13,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 09:33:13,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 09:33:13,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 09:33:13,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 09:33:13,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 09:33:13,545 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 09:33:13,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 09:33:13,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 09:33:13,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 09:33:13,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 09:33:13,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 09:33:13,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-20 09:33:13,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-20 09:33:13,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 09:33:13,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 09:33:13,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 09:33:13,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 09:33:13,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 09:33:13,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 09:33:13,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 09:33:13,549 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 09:33:13,747 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 09:33:13,749 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 09:33:14,355 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 09:33:14,355 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 09:33:14,937 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 09:33:14,937 INFO L316 CfgBuilder]: Removed 30 assume(true) statements. [2024-11-20 09:33:14,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:33:14 BoogieIcfgContainer [2024-11-20 09:33:14,937 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 09:33:14,939 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 09:33:14,939 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 09:33:14,943 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 09:33:14,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:33:12" (1/3) ... [2024-11-20 09:33:14,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d05485e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:33:14, skipping insertion in model container [2024-11-20 09:33:14,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:13" (2/3) ... [2024-11-20 09:33:14,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d05485e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:33:14, skipping insertion in model container [2024-11-20 09:33:14,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:33:14" (3/3) ... [2024-11-20 09:33:14,946 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2024-11-20 09:33:14,965 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 09:33:14,965 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-20 09:33:14,966 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 09:33:15,049 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-20 09:33:15,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 117 transitions, 254 flow [2024-11-20 09:33:15,163 INFO L124 PetriNetUnfolderBase]: 52/194 cut-off events. [2024-11-20 09:33:15,164 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-20 09:33:15,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 194 events. 52/194 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 802 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 118. Up to 8 conditions per place. [2024-11-20 09:33:15,171 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 117 transitions, 254 flow [2024-11-20 09:33:15,176 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 117 transitions, 254 flow [2024-11-20 09:33:15,189 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 09:33:15,196 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@3704c72f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 09:33:15,197 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-20 09:33:15,207 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 09:33:15,208 INFO L124 PetriNetUnfolderBase]: 2/24 cut-off events. [2024-11-20 09:33:15,208 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 09:33:15,208 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:33:15,209 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2024-11-20 09:33:15,210 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-20 09:33:15,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:33:15,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1312870823, now seen corresponding path program 1 times [2024-11-20 09:33:15,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:33:15,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449142062] [2024-11-20 09:33:15,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:33:15,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:33:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:33:15,620 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 09:33:15,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:33:15,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449142062] [2024-11-20 09:33:15,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449142062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:33:15,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:33:15,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 09:33:15,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161130777] [2024-11-20 09:33:15,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:33:15,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:33:15,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:33:15,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:33:15,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:33:15,671 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 117 [2024-11-20 09:33:15,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 117 transitions, 254 flow. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-11-20 09:33:15,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:33:15,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 117 [2024-11-20 09:33:15,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:33:17,471 INFO L124 PetriNetUnfolderBase]: 7193/13989 cut-off events. [2024-11-20 09:33:17,473 INFO L125 PetriNetUnfolderBase]: For 235/235 co-relation queries the response was YES. [2024-11-20 09:33:17,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24683 conditions, 13989 events. 7193/13989 cut-off events. For 235/235 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 112185 event pairs, 6080 based on Foata normal form. 2354/14295 useless extension candidates. Maximal degree in co-relation 23590. Up to 10560 conditions per place. [2024-11-20 09:33:17,576 INFO L140 encePairwiseOnDemand]: 92/117 looper letters, 66 selfloop transitions, 2 changer transitions 0/98 dead transitions. [2024-11-20 09:33:17,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 98 transitions, 352 flow [2024-11-20 09:33:17,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:33:17,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:33:17,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2024-11-20 09:33:17,589 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5156695156695157 [2024-11-20 09:33:17,591 INFO L175 Difference]: Start difference. First operand has 88 places, 117 transitions, 254 flow. Second operand 3 states and 181 transitions. [2024-11-20 09:33:17,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 98 transitions, 352 flow [2024-11-20 09:33:17,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 98 transitions, 352 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 09:33:17,602 INFO L231 Difference]: Finished difference. Result has 91 places, 96 transitions, 222 flow [2024-11-20 09:33:17,604 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=91, PETRI_TRANSITIONS=96} [2024-11-20 09:33:17,607 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 3 predicate places. [2024-11-20 09:33:17,607 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 96 transitions, 222 flow [2024-11-20 09:33:17,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-11-20 09:33:17,608 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:33:17,608 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:33:17,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 09:33:17,609 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-20 09:33:17,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:33:17,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1933795620, now seen corresponding path program 1 times [2024-11-20 09:33:17,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:33:17,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111481136] [2024-11-20 09:33:17,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:33:17,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:33:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:33:17,719 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 09:33:17,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:33:17,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111481136] [2024-11-20 09:33:17,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111481136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:33:17,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:33:17,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:33:17,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491303036] [2024-11-20 09:33:17,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:33:17,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:33:17,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:33:17,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:33:17,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:33:17,723 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 117 [2024-11-20 09:33:17,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 96 transitions, 222 flow. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-11-20 09:33:17,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:33:17,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 117 [2024-11-20 09:33:17,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:33:19,266 INFO L124 PetriNetUnfolderBase]: 7193/13991 cut-off events. [2024-11-20 09:33:19,269 INFO L125 PetriNetUnfolderBase]: For 235/235 co-relation queries the response was YES. [2024-11-20 09:33:19,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24694 conditions, 13991 events. 7193/13991 cut-off events. For 235/235 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 112173 event pairs, 6080 based on Foata normal form. 2/11948 useless extension candidates. Maximal degree in co-relation 24675. Up to 10563 conditions per place. [2024-11-20 09:33:19,369 INFO L140 encePairwiseOnDemand]: 114/117 looper letters, 65 selfloop transitions, 2 changer transitions 0/97 dead transitions. [2024-11-20 09:33:19,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 97 transitions, 358 flow [2024-11-20 09:33:19,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:33:19,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:33:19,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 157 transitions. [2024-11-20 09:33:19,372 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4472934472934473 [2024-11-20 09:33:19,372 INFO L175 Difference]: Start difference. First operand has 91 places, 96 transitions, 222 flow. Second operand 3 states and 157 transitions. [2024-11-20 09:33:19,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 97 transitions, 358 flow [2024-11-20 09:33:19,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 97 transitions, 356 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 09:33:19,376 INFO L231 Difference]: Finished difference. Result has 93 places, 97 transitions, 234 flow [2024-11-20 09:33:19,376 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=93, PETRI_TRANSITIONS=97} [2024-11-20 09:33:19,377 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 5 predicate places. [2024-11-20 09:33:19,377 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 97 transitions, 234 flow [2024-11-20 09:33:19,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-11-20 09:33:19,377 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:33:19,377 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:33:19,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 09:33:19,378 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-20 09:33:19,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:33:19,379 INFO L85 PathProgramCache]: Analyzing trace with hash 421133618, now seen corresponding path program 1 times [2024-11-20 09:33:19,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:33:19,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841359234] [2024-11-20 09:33:19,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:33:19,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:33:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:33:19,595 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 09:33:19,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:33:19,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841359234] [2024-11-20 09:33:19,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841359234] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:33:19,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62410013] [2024-11-20 09:33:19,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:33:19,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:33:19,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:33:19,601 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) [2024-11-20 09:33:19,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 09:33:19,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:33:19,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 09:33:19,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 09:33:19,843 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 09:33:19,844 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 09:33:19,867 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 09:33:19,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62410013] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 09:33:19,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 09:33:19,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-20 09:33:19,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822258563] [2024-11-20 09:33:19,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 09:33:19,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 09:33:19,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:33:19,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 09:33:19,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:33:19,872 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 117 [2024-11-20 09:33:19,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 97 transitions, 234 flow. Second operand has 7 states, 7 states have (on average 31.857142857142858) internal successors, (223), 7 states have internal predecessors, (223), 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) [2024-11-20 09:33:19,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:33:19,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 117 [2024-11-20 09:33:19,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:33:21,786 INFO L124 PetriNetUnfolderBase]: 7193/13997 cut-off events. [2024-11-20 09:33:21,787 INFO L125 PetriNetUnfolderBase]: For 236/236 co-relation queries the response was YES. [2024-11-20 09:33:21,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24722 conditions, 13997 events. 7193/13997 cut-off events. For 236/236 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 112259 event pairs, 6080 based on Foata normal form. 6/11958 useless extension candidates. Maximal degree in co-relation 24682. Up to 10563 conditions per place. [2024-11-20 09:33:21,893 INFO L140 encePairwiseOnDemand]: 114/117 looper letters, 65 selfloop transitions, 5 changer transitions 0/100 dead transitions. [2024-11-20 09:33:21,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 100 transitions, 386 flow [2024-11-20 09:33:21,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 09:33:21,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 09:33:21,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 252 transitions. [2024-11-20 09:33:21,896 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.358974358974359 [2024-11-20 09:33:21,896 INFO L175 Difference]: Start difference. First operand has 93 places, 97 transitions, 234 flow. Second operand 6 states and 252 transitions. [2024-11-20 09:33:21,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 100 transitions, 386 flow [2024-11-20 09:33:21,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 100 transitions, 382 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-20 09:33:21,904 INFO L231 Difference]: Finished difference. Result has 100 places, 100 transitions, 272 flow [2024-11-20 09:33:21,904 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=272, PETRI_PLACES=100, PETRI_TRANSITIONS=100} [2024-11-20 09:33:21,904 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 12 predicate places. [2024-11-20 09:33:21,905 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 100 transitions, 272 flow [2024-11-20 09:33:21,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.857142857142858) internal successors, (223), 7 states have internal predecessors, (223), 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) [2024-11-20 09:33:21,905 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:33:21,905 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:33:21,919 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 09:33:22,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:33:22,108 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-20 09:33:22,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:33:22,109 INFO L85 PathProgramCache]: Analyzing trace with hash -2112818012, now seen corresponding path program 2 times [2024-11-20 09:33:22,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:33:22,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757433605] [2024-11-20 09:33:22,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:33:22,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:33:22,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:33:22,340 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 09:33:22,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:33:22,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757433605] [2024-11-20 09:33:22,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757433605] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:33:22,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64758868] [2024-11-20 09:33:22,341 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 09:33:22,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:33:22,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:33:22,344 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) [2024-11-20 09:33:22,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 09:33:22,631 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 09:33:22,631 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 09:33:22,636 INFO L255 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 09:33:22,638 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 09:33:22,680 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 09:33:22,680 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 09:33:22,746 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 09:33:22,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64758868] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 09:33:22,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 09:33:22,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2024-11-20 09:33:22,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163610853] [2024-11-20 09:33:22,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 09:33:22,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 09:33:22,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:33:22,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 09:33:22,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-20 09:33:22,750 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 117 [2024-11-20 09:33:22,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 100 transitions, 272 flow. Second operand has 14 states, 14 states have (on average 31.571428571428573) internal successors, (442), 14 states have internal predecessors, (442), 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) [2024-11-20 09:33:22,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:33:22,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 117 [2024-11-20 09:33:22,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:33:25,726 INFO L124 PetriNetUnfolderBase]: 7194/14022 cut-off events. [2024-11-20 09:33:25,726 INFO L125 PetriNetUnfolderBase]: For 356/356 co-relation queries the response was YES. [2024-11-20 09:33:25,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24850 conditions, 14022 events. 7194/14022 cut-off events. For 356/356 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 112334 event pairs, 6080 based on Foata normal form. 19/11996 useless extension candidates. Maximal degree in co-relation 24678. Up to 10560 conditions per place. [2024-11-20 09:33:25,803 INFO L140 encePairwiseOnDemand]: 112/117 looper letters, 65 selfloop transitions, 36 changer transitions 0/131 dead transitions. [2024-11-20 09:33:25,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 131 transitions, 674 flow [2024-11-20 09:33:25,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-20 09:33:25,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2024-11-20 09:33:25,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 1140 transitions. [2024-11-20 09:33:25,809 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2865761689291101 [2024-11-20 09:33:25,810 INFO L175 Difference]: Start difference. First operand has 100 places, 100 transitions, 272 flow. Second operand 34 states and 1140 transitions. [2024-11-20 09:33:25,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 131 transitions, 674 flow [2024-11-20 09:33:25,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 131 transitions, 632 flow, removed 18 selfloop flow, removed 1 redundant places. [2024-11-20 09:33:25,820 INFO L231 Difference]: Finished difference. Result has 145 places, 131 transitions, 564 flow [2024-11-20 09:33:25,820 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=564, PETRI_PLACES=145, PETRI_TRANSITIONS=131} [2024-11-20 09:33:25,821 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 57 predicate places. [2024-11-20 09:33:25,822 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 131 transitions, 564 flow [2024-11-20 09:33:25,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 31.571428571428573) internal successors, (442), 14 states have internal predecessors, (442), 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) [2024-11-20 09:33:25,823 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:33:25,823 INFO L204 CegarLoopForPetriNet]: trace histogram [20, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-20 09:33:25,835 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 09:33:26,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-20 09:33:26,028 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-20 09:33:26,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:33:26,028 INFO L85 PathProgramCache]: Analyzing trace with hash -803156319, now seen corresponding path program 3 times [2024-11-20 09:33:26,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:33:26,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628819138] [2024-11-20 09:33:26,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:33:26,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:33:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:33:27,661 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 123 proven. 55 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-20 09:33:27,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:33:27,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628819138] [2024-11-20 09:33:27,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628819138] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:33:27,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193275447] [2024-11-20 09:33:27,662 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 09:33:27,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:33:27,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:33:27,666 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) [2024-11-20 09:33:27,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process