./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_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-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 01:42:47,782 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 01:42:47,820 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 01:42:47,823 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 01:42:47,824 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 01:42:47,868 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 01:42:47,868 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 01:42:47,869 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 01:42:47,869 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 01:42:47,869 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 01:42:47,870 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 01:42:47,880 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 01:42:47,881 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 01:42:47,882 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 01:42:47,882 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 01:42:47,882 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 01:42:47,882 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 01:42:47,883 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 01:42:47,883 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 01:42:47,883 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 01:42:47,883 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 01:42:47,884 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 01:42:47,884 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 01:42:47,884 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 01:42:47,885 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 01:42:47,885 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 01:42:47,885 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 01:42:47,885 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 01:42:47,885 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 01:42:47,886 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 01:42:47,886 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 01:42:47,886 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 01:42:47,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:42:47,887 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 01:42:47,887 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 01:42:47,887 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 01:42:47,887 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 01:42:47,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 01:42:47,888 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 01:42:47,888 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 01:42:47,888 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 01:42:47,888 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 01:42:47,889 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af [2024-11-19 01:42:48,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 01:42:48,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 01:42:48,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 01:42:48,135 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 01:42:48,135 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 01:42:48,137 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-11-19 01:42:49,523 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 01:42:49,761 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 01:42:49,762 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-11-19 01:42:49,783 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/465f9db09/8dcc64443c5c49efbad54a4ce5f79ed0/FLAG63595def4 [2024-11-19 01:42:50,088 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/465f9db09/8dcc64443c5c49efbad54a4ce5f79ed0 [2024-11-19 01:42:50,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 01:42:50,093 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 01:42:50,095 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 01:42:50,096 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 01:42:50,100 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 01:42:50,101 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:42:50" (1/1) ... [2024-11-19 01:42:50,102 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f1b940e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:50, skipping insertion in model container [2024-11-19 01:42:50,102 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:42:50" (1/1) ... [2024-11-19 01:42:50,155 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 01:42:50,560 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] [2024-11-19 01:42:50,575 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-19 01:42:50,576 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-19 01:42:50,576 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-19 01:42:50,576 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-19 01:42:50,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:42:50,648 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 01:42:50,684 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] [2024-11-19 01:42:50,690 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-19 01:42:50,694 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-19 01:42:50,694 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-19 01:42:50,695 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-19 01:42:50,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:42:50,758 INFO L204 MainTranslator]: Completed translation [2024-11-19 01:42:50,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:50 WrapperNode [2024-11-19 01:42:50,758 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 01:42:50,759 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 01:42:50,759 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 01:42:50,760 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 01:42:50,765 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:50" (1/1) ... [2024-11-19 01:42:50,781 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:50" (1/1) ... [2024-11-19 01:42:50,809 INFO L138 Inliner]: procedures = 280, calls = 142, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 394 [2024-11-19 01:42:50,810 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 01:42:50,810 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 01:42:50,810 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 01:42:50,810 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 01:42:50,820 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:50" (1/1) ... [2024-11-19 01:42:50,820 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:50" (1/1) ... [2024-11-19 01:42:50,827 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:50" (1/1) ... [2024-11-19 01:42:50,856 INFO L175 MemorySlicer]: Split 105 memory accesses to 5 slices as follows [94, 2, 5, 2, 2]. 90 percent of accesses are in the largest equivalence class. The 77 initializations are split as follows [70, 2, 5, 0, 0]. The 15 writes are split as follows [13, 0, 0, 1, 1]. [2024-11-19 01:42:50,856 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:50" (1/1) ... [2024-11-19 01:42:50,856 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:50" (1/1) ... [2024-11-19 01:42:50,906 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:50" (1/1) ... [2024-11-19 01:42:50,912 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:50" (1/1) ... [2024-11-19 01:42:50,919 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:50" (1/1) ... [2024-11-19 01:42:50,924 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:50" (1/1) ... [2024-11-19 01:42:50,931 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 01:42:50,932 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 01:42:50,932 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 01:42:50,932 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 01:42:50,933 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:50" (1/1) ... [2024-11-19 01:42:50,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:42:50,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:42:50,969 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) [2024-11-19 01:42:50,978 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 [2024-11-19 01:42:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 01:42:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 01:42:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 01:42:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 01:42:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 01:42:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 01:42:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-19 01:42:51,016 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-19 01:42:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 01:42:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-19 01:42:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-19 01:42:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-19 01:42:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-19 01:42:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-19 01:42:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 01:42:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 01:42:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 01:42:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 01:42:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 01:42:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 01:42:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-19 01:42:51,017 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-19 01:42:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 01:42:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 01:42:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 01:42:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 01:42:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 01:42:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 01:42:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 01:42:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 01:42:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 01:42:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 01:42:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 01:42:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 01:42:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 01:42:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 01:42:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 01:42:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 01:42:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 01:42:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 01:42:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 01:42:51,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 01:42:51,021 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 01:42:51,173 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 01:42:51,175 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 01:42:51,596 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 01:42:51,596 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 01:42:52,043 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 01:42:52,043 INFO L316 CfgBuilder]: Removed 30 assume(true) statements. [2024-11-19 01:42:52,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:42:52 BoogieIcfgContainer [2024-11-19 01:42:52,043 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 01:42:52,046 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 01:42:52,046 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 01:42:52,048 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 01:42:52,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:42:50" (1/3) ... [2024-11-19 01:42:52,049 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236a3d0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:42:52, skipping insertion in model container [2024-11-19 01:42:52,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:50" (2/3) ... [2024-11-19 01:42:52,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236a3d0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:42:52, skipping insertion in model container [2024-11-19 01:42:52,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:42:52" (3/3) ... [2024-11-19 01:42:52,052 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2024-11-19 01:42:52,065 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 01:42:52,065 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 01:42:52,066 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 01:42:52,156 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-19 01:42:52,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 117 transitions, 254 flow [2024-11-19 01:42:52,258 INFO L124 PetriNetUnfolderBase]: 52/194 cut-off events. [2024-11-19 01:42:52,258 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-19 01:42:52,262 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. [2024-11-19 01:42:52,262 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 117 transitions, 254 flow [2024-11-19 01:42:52,266 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 117 transitions, 254 flow [2024-11-19 01:42:52,272 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:42:52,278 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;@673b7cd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:42:52,278 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-19 01:42:52,285 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 01:42:52,286 INFO L124 PetriNetUnfolderBase]: 2/24 cut-off events. [2024-11-19 01:42:52,286 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 01:42:52,286 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:42:52,287 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2024-11-19 01:42:52,287 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)] === [2024-11-19 01:42:52,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:42:52,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1312870823, now seen corresponding path program 1 times [2024-11-19 01:42:52,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:42:52,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428080175] [2024-11-19 01:42:52,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:42:52,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:42:52,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:42:52,689 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:42:52,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:42:52,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428080175] [2024-11-19 01:42:52,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428080175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:42:52,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:42:52,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 01:42:52,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307152277] [2024-11-19 01:42:52,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:42:52,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:42:52,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:42:52,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:42:52,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:42:52,730 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 117 [2024-11-19 01:42:52,732 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) [2024-11-19 01:42:52,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:42:52,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 117 [2024-11-19 01:42:52,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:42:54,142 INFO L124 PetriNetUnfolderBase]: 7193/13989 cut-off events. [2024-11-19 01:42:54,143 INFO L125 PetriNetUnfolderBase]: For 235/235 co-relation queries the response was YES. [2024-11-19 01:42:54,164 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. [2024-11-19 01:42:54,218 INFO L140 encePairwiseOnDemand]: 92/117 looper letters, 66 selfloop transitions, 2 changer transitions 0/98 dead transitions. [2024-11-19 01:42:54,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 98 transitions, 352 flow [2024-11-19 01:42:54,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:42:54,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 01:42:54,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2024-11-19 01:42:54,228 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5156695156695157 [2024-11-19 01:42:54,230 INFO L175 Difference]: Start difference. First operand has 88 places, 117 transitions, 254 flow. Second operand 3 states and 181 transitions. [2024-11-19 01:42:54,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 98 transitions, 352 flow [2024-11-19 01:42:54,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 98 transitions, 352 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 01:42:54,238 INFO L231 Difference]: Finished difference. Result has 91 places, 96 transitions, 222 flow [2024-11-19 01:42:54,239 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} [2024-11-19 01:42:54,242 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 3 predicate places. [2024-11-19 01:42:54,242 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 96 transitions, 222 flow [2024-11-19 01:42:54,242 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) [2024-11-19 01:42:54,242 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:42:54,242 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:42:54,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 01:42:54,243 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)] === [2024-11-19 01:42:54,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:42:54,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1933795620, now seen corresponding path program 1 times [2024-11-19 01:42:54,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:42:54,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134494198] [2024-11-19 01:42:54,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:42:54,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:42:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:42:54,303 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:42:54,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:42:54,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134494198] [2024-11-19 01:42:54,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134494198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:42:54,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:42:54,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:42:54,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499721275] [2024-11-19 01:42:54,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:42:54,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:42:54,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:42:54,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:42:54,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:42:54,307 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 117 [2024-11-19 01:42:54,308 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) [2024-11-19 01:42:54,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:42:54,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 117 [2024-11-19 01:42:54,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:42:55,556 INFO L124 PetriNetUnfolderBase]: 7193/13991 cut-off events. [2024-11-19 01:42:55,561 INFO L125 PetriNetUnfolderBase]: For 235/235 co-relation queries the response was YES. [2024-11-19 01:42:55,610 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. [2024-11-19 01:42:55,648 INFO L140 encePairwiseOnDemand]: 114/117 looper letters, 65 selfloop transitions, 2 changer transitions 0/97 dead transitions. [2024-11-19 01:42:55,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 97 transitions, 358 flow [2024-11-19 01:42:55,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:42:55,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 01:42:55,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 157 transitions. [2024-11-19 01:42:55,654 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4472934472934473 [2024-11-19 01:42:55,654 INFO L175 Difference]: Start difference. First operand has 91 places, 96 transitions, 222 flow. Second operand 3 states and 157 transitions. [2024-11-19 01:42:55,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 97 transitions, 358 flow [2024-11-19 01:42:55,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 97 transitions, 356 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 01:42:55,656 INFO L231 Difference]: Finished difference. Result has 93 places, 97 transitions, 234 flow [2024-11-19 01:42:55,657 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} [2024-11-19 01:42:55,657 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 5 predicate places. [2024-11-19 01:42:55,657 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 97 transitions, 234 flow [2024-11-19 01:42:55,657 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) [2024-11-19 01:42:55,658 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:42:55,658 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:42:55,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 01:42:55,658 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)] === [2024-11-19 01:42:55,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:42:55,658 INFO L85 PathProgramCache]: Analyzing trace with hash 421133618, now seen corresponding path program 1 times [2024-11-19 01:42:55,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:42:55,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134580596] [2024-11-19 01:42:55,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:42:55,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:42:55,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:42:55,784 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:42:55,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:42:55,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134580596] [2024-11-19 01:42:55,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134580596] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:42:55,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868971656] [2024-11-19 01:42:55,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:42:55,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:42:55,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:42:55,787 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) [2024-11-19 01:42:55,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 01:42:55,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:42:55,937 INFO L255 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 01:42:55,941 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:42:55,970 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:42:55,971 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:42:55,987 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:42:55,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868971656] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 01:42:55,988 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 01:42:55,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-19 01:42:55,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393571744] [2024-11-19 01:42:55,989 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 01:42:55,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:42:55,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:42:55,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:42:55,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:42:55,991 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 117 [2024-11-19 01:42:55,991 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) [2024-11-19 01:42:55,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:42:55,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 117 [2024-11-19 01:42:55,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:42:57,678 INFO L124 PetriNetUnfolderBase]: 7193/13997 cut-off events. [2024-11-19 01:42:57,678 INFO L125 PetriNetUnfolderBase]: For 236/236 co-relation queries the response was YES. [2024-11-19 01:42:57,788 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. [2024-11-19 01:42:57,908 INFO L140 encePairwiseOnDemand]: 114/117 looper letters, 65 selfloop transitions, 5 changer transitions 0/100 dead transitions. [2024-11-19 01:42:57,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 100 transitions, 386 flow [2024-11-19 01:42:57,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:42:57,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 01:42:57,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 252 transitions. [2024-11-19 01:42:57,915 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.358974358974359 [2024-11-19 01:42:57,918 INFO L175 Difference]: Start difference. First operand has 93 places, 97 transitions, 234 flow. Second operand 6 states and 252 transitions. [2024-11-19 01:42:57,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 100 transitions, 386 flow [2024-11-19 01:42:57,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 100 transitions, 382 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-19 01:42:57,923 INFO L231 Difference]: Finished difference. Result has 100 places, 100 transitions, 272 flow [2024-11-19 01:42:57,923 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} [2024-11-19 01:42:57,923 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 12 predicate places. [2024-11-19 01:42:57,924 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 100 transitions, 272 flow [2024-11-19 01:42:57,924 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) [2024-11-19 01:42:57,924 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:42:57,925 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:42:57,939 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 01:42:58,128 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 [2024-11-19 01:42:58,129 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)] === [2024-11-19 01:42:58,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:42:58,130 INFO L85 PathProgramCache]: Analyzing trace with hash -2112818012, now seen corresponding path program 2 times [2024-11-19 01:42:58,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:42:58,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628599190] [2024-11-19 01:42:58,131 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 01:42:58,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:42:58,209 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 01:42:58,209 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:42:58,303 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 01:42:58,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:42:58,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628599190] [2024-11-19 01:42:58,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628599190] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:42:58,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483137488] [2024-11-19 01:42:58,304 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 01:42:58,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:42:58,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:42:58,306 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) [2024-11-19 01:42:58,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 01:42:58,516 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 01:42:58,516 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:42:58,520 INFO L255 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 01:42:58,522 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:42:58,558 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:42:58,558 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:42:58,656 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:42:58,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483137488] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 01:42:58,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 01:42:58,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2024-11-19 01:42:58,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345383851] [2024-11-19 01:42:58,657 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 01:42:58,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 01:42:58,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:42:58,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 01:42:58,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-19 01:42:58,659 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 117 [2024-11-19 01:42:58,660 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) [2024-11-19 01:42:58,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:42:58,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 117 [2024-11-19 01:42:58,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:43:00,887 INFO L124 PetriNetUnfolderBase]: 7194/14022 cut-off events. [2024-11-19 01:43:00,887 INFO L125 PetriNetUnfolderBase]: For 356/356 co-relation queries the response was YES. [2024-11-19 01:43:00,915 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. [2024-11-19 01:43:00,954 INFO L140 encePairwiseOnDemand]: 112/117 looper letters, 65 selfloop transitions, 36 changer transitions 0/131 dead transitions. [2024-11-19 01:43:00,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 131 transitions, 674 flow [2024-11-19 01:43:00,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-19 01:43:00,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2024-11-19 01:43:00,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 1140 transitions. [2024-11-19 01:43:00,962 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2865761689291101 [2024-11-19 01:43:00,962 INFO L175 Difference]: Start difference. First operand has 100 places, 100 transitions, 272 flow. Second operand 34 states and 1140 transitions. [2024-11-19 01:43:00,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 131 transitions, 674 flow [2024-11-19 01:43:00,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 131 transitions, 632 flow, removed 18 selfloop flow, removed 1 redundant places. [2024-11-19 01:43:00,966 INFO L231 Difference]: Finished difference. Result has 145 places, 131 transitions, 564 flow [2024-11-19 01:43:00,966 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} [2024-11-19 01:43:00,967 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 57 predicate places. [2024-11-19 01:43:00,967 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 131 transitions, 564 flow [2024-11-19 01:43:00,968 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) [2024-11-19 01:43:00,968 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:43:00,968 INFO L204 CegarLoopForPetriNet]: trace histogram [20, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-19 01:43:00,982 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 01:43:01,168 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 [2024-11-19 01:43:01,169 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)] === [2024-11-19 01:43:01,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:43:01,171 INFO L85 PathProgramCache]: Analyzing trace with hash -803156319, now seen corresponding path program 3 times [2024-11-19 01:43:01,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:43:01,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738849472] [2024-11-19 01:43:01,171 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 01:43:01,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:43:09,165 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2024-11-19 01:43:09,166 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:43:09,462 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-19 01:43:09,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:43:09,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738849472] [2024-11-19 01:43:09,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738849472] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:43:09,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781344660] [2024-11-19 01:43:09,463 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 01:43:09,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:43:09,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:43:09,465 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) [2024-11-19 01:43:09,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process