./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_87-lists_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_87-lists_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7be9b237ca4111a24c77c67cce26f31a788af03984af96dee7353f79c789c2c1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:32:33,612 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:32:33,716 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 17:32:33,722 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:32:33,722 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:32:33,770 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:32:33,771 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:32:33,771 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:32:33,772 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:32:33,772 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:32:33,773 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:32:33,774 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:32:33,777 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:32:33,781 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:32:33,781 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:32:33,782 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:32:33,782 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:32:33,782 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:32:33,783 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:32:33,787 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:32:33,788 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:32:33,788 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:32:33,789 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:32:33,789 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:32:33,789 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:32:33,790 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 17:32:33,790 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:32:33,790 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:32:33,791 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:32:33,791 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:32:33,791 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:32:33,792 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:32:33,794 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:32:33,794 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:32:33,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:32:33,795 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:32:33,795 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:32:33,796 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:32:33,796 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:32:33,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:32:33,797 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:32:33,797 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:32:33,800 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:32:33,800 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:32:33,800 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7be9b237ca4111a24c77c67cce26f31a788af03984af96dee7353f79c789c2c1 [2024-11-08 17:32:34,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:32:34,168 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:32:34,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:32:34,172 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:32:34,174 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:32:34,176 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_87-lists_racefree.i Unable to find full path for "g++" [2024-11-08 17:32:36,247 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:32:36,525 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:32:36,526 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/sv-benchmarks/c/goblint-regression/28-race_reach_87-lists_racefree.i [2024-11-08 17:32:36,553 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/data/199ec7781/5d47255e578b411ab25d84f7b896ef96/FLAGb84ca090a [2024-11-08 17:32:36,578 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/data/199ec7781/5d47255e578b411ab25d84f7b896ef96 [2024-11-08 17:32:36,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:32:36,585 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:32:36,587 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:32:36,588 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:32:36,598 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:32:36,599 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:32:36" (1/1) ... [2024-11-08 17:32:36,600 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dc16f9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:36, skipping insertion in model container [2024-11-08 17:32:36,601 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:32:36" (1/1) ... [2024-11-08 17:32:36,666 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:32:37,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:32:37,695 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:32:37,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:32:37,993 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:32:37,994 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:37 WrapperNode [2024-11-08 17:32:37,994 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:32:37,995 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:32:37,996 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:32:37,996 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:32:38,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:37" (1/1) ... [2024-11-08 17:32:38,068 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:37" (1/1) ... [2024-11-08 17:32:38,238 INFO L138 Inliner]: procedures = 280, calls = 1605, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 1791 [2024-11-08 17:32:38,239 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:32:38,240 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:32:38,240 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:32:38,240 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:32:38,254 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:37" (1/1) ... [2024-11-08 17:32:38,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:37" (1/1) ... [2024-11-08 17:32:38,270 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:37" (1/1) ... [2024-11-08 17:32:38,323 INFO L175 MemorySlicer]: Split 1569 memory accesses to 8 slices as follows [2, 5, 259, 14, 5, 1280, 2, 2]. 82 percent of accesses are in the largest equivalence class. The 1548 initializations are split as follows [2, 5, 256, 0, 5, 1280, 0, 0]. The 11 writes are split as follows [0, 0, 1, 8, 0, 0, 1, 1]. [2024-11-08 17:32:38,323 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:37" (1/1) ... [2024-11-08 17:32:38,323 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:37" (1/1) ... [2024-11-08 17:32:38,384 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:37" (1/1) ... [2024-11-08 17:32:38,395 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:37" (1/1) ... [2024-11-08 17:32:38,405 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:37" (1/1) ... [2024-11-08 17:32:38,420 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:37" (1/1) ... [2024-11-08 17:32:38,442 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:32:38,445 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:32:38,445 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:32:38,445 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:32:38,447 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:37" (1/1) ... [2024-11-08 17:32:38,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:32:38,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:32:38,484 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:32:38,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:32:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 17:32:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 17:32:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 17:32:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-08 17:32:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-08 17:32:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-08 17:32:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-08 17:32:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-08 17:32:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-08 17:32:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-08 17:32:38,535 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-08 17:32:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 17:32:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-08 17:32:38,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-08 17:32:38,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-08 17:32:38,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-08 17:32:38,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-08 17:32:38,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-08 17:32:38,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-08 17:32:38,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-08 17:32:38,539 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 17:32:38,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 17:32:38,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 17:32:38,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 17:32:38,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 17:32:38,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 17:32:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-08 17:32:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-08 17:32:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-08 17:32:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-08 17:32:38,540 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-08 17:32:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 17:32:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 17:32:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 17:32:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 17:32:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 17:32:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-08 17:32:38,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-08 17:32:38,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-08 17:32:38,543 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 17:32:38,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 17:32:38,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:32:38,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 17:32:38,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 17:32:38,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-08 17:32:38,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-08 17:32:38,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-08 17:32:38,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-08 17:32:38,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-08 17:32:38,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-08 17:32:38,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:32:38,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 17:32:38,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 17:32:38,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 17:32:38,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 17:32:38,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 17:32:38,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-08 17:32:38,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-08 17:32:38,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:32:38,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:32:38,550 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 17:32:38,803 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:32:38,805 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:32:41,582 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 17:32:41,582 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:33:33,502 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:33:33,503 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-08 17:33:33,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:33:33 BoogieIcfgContainer [2024-11-08 17:33:33,504 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:33:33,508 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:33:33,508 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:33:33,512 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:33:33,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:32:36" (1/3) ... [2024-11-08 17:33:33,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1017d3f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:33:33, skipping insertion in model container [2024-11-08 17:33:33,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:37" (2/3) ... [2024-11-08 17:33:33,515 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1017d3f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:33:33, skipping insertion in model container [2024-11-08 17:33:33,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:33:33" (3/3) ... [2024-11-08 17:33:33,517 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_87-lists_racefree.i [2024-11-08 17:33:33,541 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:33:33,542 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-08 17:33:33,542 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 17:33:33,711 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-08 17:33:33,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 115 transitions, 250 flow [2024-11-08 17:33:33,986 INFO L124 PetriNetUnfolderBase]: 50/248 cut-off events. [2024-11-08 17:33:33,987 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-08 17:33:33,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 248 events. 50/248 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 988 event pairs, 0 based on Foata normal form. 0/164 useless extension candidates. Maximal degree in co-relation 120. Up to 8 conditions per place. [2024-11-08 17:33:33,996 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 115 transitions, 250 flow [2024-11-08 17:33:34,004 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 115 transitions, 250 flow [2024-11-08 17:33:34,016 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:33:34,026 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;@6ede5b64, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:33:34,027 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-08 17:33:34,107 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:33:34,107 INFO L124 PetriNetUnfolderBase]: 2/9 cut-off events. [2024-11-08 17:33:34,108 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:33:34,108 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:33:34,109 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 17:33:34,110 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 17:33:34,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:33:34,116 INFO L85 PathProgramCache]: Analyzing trace with hash 116437859, now seen corresponding path program 1 times [2024-11-08 17:33:34,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:33:34,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26377744] [2024-11-08 17:33:34,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:33:34,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:33:34,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:33:35,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:33:35,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:33:35,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26377744] [2024-11-08 17:33:35,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26377744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:33:35,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:33:35,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:33:35,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099827449] [2024-11-08 17:33:35,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:33:35,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:33:35,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:33:36,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:33:36,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:33:36,040 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 115 [2024-11-08 17:33:36,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 115 transitions, 250 flow. Second operand has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 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) [2024-11-08 17:33:36,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:33:36,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 115 [2024-11-08 17:33:36,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:33:37,332 INFO L124 PetriNetUnfolderBase]: 2483/5142 cut-off events. [2024-11-08 17:33:37,332 INFO L125 PetriNetUnfolderBase]: For 159/159 co-relation queries the response was YES. [2024-11-08 17:33:37,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9174 conditions, 5142 events. 2483/5142 cut-off events. For 159/159 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 38862 event pairs, 2279 based on Foata normal form. 349/5156 useless extension candidates. Maximal degree in co-relation 7686. Up to 3945 conditions per place. [2024-11-08 17:33:37,386 INFO L140 encePairwiseOnDemand]: 97/115 looper letters, 55 selfloop transitions, 3 changer transitions 0/106 dead transitions. [2024-11-08 17:33:37,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 106 transitions, 348 flow [2024-11-08 17:33:37,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:33:37,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:33:37,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 265 transitions. [2024-11-08 17:33:37,405 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5760869565217391 [2024-11-08 17:33:37,408 INFO L175 Difference]: Start difference. First operand has 97 places, 115 transitions, 250 flow. Second operand 4 states and 265 transitions. [2024-11-08 17:33:37,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 106 transitions, 348 flow [2024-11-08 17:33:37,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 106 transitions, 348 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:33:37,424 INFO L231 Difference]: Finished difference. Result has 102 places, 106 transitions, 254 flow [2024-11-08 17:33:37,431 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=254, PETRI_PLACES=102, PETRI_TRANSITIONS=106} [2024-11-08 17:33:37,435 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, 5 predicate places. [2024-11-08 17:33:37,441 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 106 transitions, 254 flow [2024-11-08 17:33:37,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 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) [2024-11-08 17:33:37,442 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:33:37,442 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-08 17:33:37,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:33:37,443 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 17:33:37,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:33:37,444 INFO L85 PathProgramCache]: Analyzing trace with hash -172425956, now seen corresponding path program 1 times [2024-11-08 17:33:37,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:33:37,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751269405] [2024-11-08 17:33:37,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:33:37,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:33:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:33:38,418 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:33:38,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:33:38,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751269405] [2024-11-08 17:33:38,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751269405] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:33:38,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913679023] [2024-11-08 17:33:38,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:33:38,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:33:38,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:33:38,424 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:33:38,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:33:39,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:33:39,646 INFO L255 TraceCheckSpWp]: Trace formula consists of 3764 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 17:33:39,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:33:39,726 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:33:39,726 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:33:39,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913679023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:33:39,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:33:39,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 17:33:39,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809932218] [2024-11-08 17:33:39,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:33:39,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:33:39,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:33:39,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:33:39,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:33:39,765 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 115 [2024-11-08 17:33:39,766 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 106 transitions, 254 flow. Second operand has 6 states, 6 states have (on average 48.833333333333336) internal successors, (293), 6 states have internal predecessors, (293), 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) [2024-11-08 17:33:39,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:33:39,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 115 [2024-11-08 17:33:39,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:33:40,882 INFO L124 PetriNetUnfolderBase]: 2483/5141 cut-off events. [2024-11-08 17:33:40,882 INFO L125 PetriNetUnfolderBase]: For 165/165 co-relation queries the response was YES. [2024-11-08 17:33:40,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9185 conditions, 5141 events. 2483/5141 cut-off events. For 165/165 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 38889 event pairs, 2279 based on Foata normal form. 1/4807 useless extension candidates. Maximal degree in co-relation 9165. Up to 3938 conditions per place. [2024-11-08 17:33:40,924 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 51 selfloop transitions, 6 changer transitions 0/105 dead transitions. [2024-11-08 17:33:40,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 105 transitions, 364 flow [2024-11-08 17:33:40,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:33:40,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:33:40,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 346 transitions. [2024-11-08 17:33:40,927 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5014492753623189 [2024-11-08 17:33:40,927 INFO L175 Difference]: Start difference. First operand has 102 places, 106 transitions, 254 flow. Second operand 6 states and 346 transitions. [2024-11-08 17:33:40,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 105 transitions, 364 flow [2024-11-08 17:33:40,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 105 transitions, 362 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:33:40,932 INFO L231 Difference]: Finished difference. Result has 105 places, 105 transitions, 260 flow [2024-11-08 17:33:40,933 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=260, PETRI_PLACES=105, PETRI_TRANSITIONS=105} [2024-11-08 17:33:40,934 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, 8 predicate places. [2024-11-08 17:33:40,934 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 105 transitions, 260 flow [2024-11-08 17:33:40,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.833333333333336) internal successors, (293), 6 states have internal predecessors, (293), 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) [2024-11-08 17:33:40,935 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:33:40,935 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-08 17:33:40,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 17:33:41,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-08 17:33:41,136 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 17:33:41,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:33:41,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1050233578, now seen corresponding path program 1 times [2024-11-08 17:33:41,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:33:41,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947386793] [2024-11-08 17:33:41,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:33:41,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:33:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:33:41,592 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 17:33:41,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:33:41,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947386793] [2024-11-08 17:33:41,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947386793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:33:41,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:33:41,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:33:41,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272017541] [2024-11-08 17:33:41,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:33:41,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:33:41,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:33:41,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:33:41,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:33:41,607 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 115 [2024-11-08 17:33:41,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 105 transitions, 260 flow. Second operand has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 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) [2024-11-08 17:33:41,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:33:41,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 115 [2024-11-08 17:33:41,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:33:42,942 INFO L124 PetriNetUnfolderBase]: 2482/5139 cut-off events. [2024-11-08 17:33:42,943 INFO L125 PetriNetUnfolderBase]: For 170/170 co-relation queries the response was YES. [2024-11-08 17:33:42,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9186 conditions, 5139 events. 2482/5139 cut-off events. For 170/170 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 38919 event pairs, 2279 based on Foata normal form. 2/4808 useless extension candidates. Maximal degree in co-relation 9159. Up to 3941 conditions per place. [2024-11-08 17:33:42,992 INFO L140 encePairwiseOnDemand]: 109/115 looper letters, 51 selfloop transitions, 6 changer transitions 0/104 dead transitions. [2024-11-08 17:33:42,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 104 transitions, 368 flow [2024-11-08 17:33:42,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:33:42,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:33:42,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 245 transitions. [2024-11-08 17:33:42,995 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.532608695652174 [2024-11-08 17:33:42,995 INFO L175 Difference]: Start difference. First operand has 105 places, 105 transitions, 260 flow. Second operand 4 states and 245 transitions. [2024-11-08 17:33:42,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 104 transitions, 368 flow [2024-11-08 17:33:43,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 104 transitions, 358 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-08 17:33:43,005 INFO L231 Difference]: Finished difference. Result has 104 places, 104 transitions, 262 flow [2024-11-08 17:33:43,006 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=262, PETRI_PLACES=104, PETRI_TRANSITIONS=104} [2024-11-08 17:33:43,008 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, 7 predicate places. [2024-11-08 17:33:43,009 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 104 transitions, 262 flow [2024-11-08 17:33:43,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 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) [2024-11-08 17:33:43,009 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:33:43,010 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:33:43,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:33:43,011 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 17:33:43,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:33:43,011 INFO L85 PathProgramCache]: Analyzing trace with hash 769524684, now seen corresponding path program 1 times [2024-11-08 17:33:43,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:33:43,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295635597] [2024-11-08 17:33:43,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:33:43,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:33:43,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:33:43,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:33:43,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:33:43,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295635597] [2024-11-08 17:33:43,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295635597] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:33:43,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296402126] [2024-11-08 17:33:43,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:33:43,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:33:43,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:33:43,688 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:33:43,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:33:44,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:33:44,623 INFO L255 TraceCheckSpWp]: Trace formula consists of 3753 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 17:33:44,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:33:44,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:33:44,668 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:33:44,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:33:44,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296402126] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:33:44,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:33:44,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-08 17:33:44,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110865965] [2024-11-08 17:33:44,718 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:33:44,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:33:44,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:33:44,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:33:44,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:33:44,751 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 115 [2024-11-08 17:33:44,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 104 transitions, 262 flow. Second operand has 10 states, 10 states have (on average 48.7) internal successors, (487), 10 states have internal predecessors, (487), 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) [2024-11-08 17:33:44,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:33:44,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 115 [2024-11-08 17:33:44,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:33:46,213 INFO L124 PetriNetUnfolderBase]: 2482/5144 cut-off events. [2024-11-08 17:33:46,213 INFO L125 PetriNetUnfolderBase]: For 180/180 co-relation queries the response was YES. [2024-11-08 17:33:46,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9207 conditions, 5144 events. 2482/5144 cut-off events. For 180/180 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 38853 event pairs, 2279 based on Foata normal form. 2/4813 useless extension candidates. Maximal degree in co-relation 9151. Up to 3940 conditions per place. [2024-11-08 17:33:46,256 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 54 selfloop transitions, 7 changer transitions 0/108 dead transitions. [2024-11-08 17:33:46,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 108 transitions, 409 flow [2024-11-08 17:33:46,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:33:46,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 17:33:46,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 392 transitions. [2024-11-08 17:33:46,259 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48695652173913045 [2024-11-08 17:33:46,259 INFO L175 Difference]: Start difference. First operand has 104 places, 104 transitions, 262 flow. Second operand 7 states and 392 transitions. [2024-11-08 17:33:46,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 108 transitions, 409 flow [2024-11-08 17:33:46,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 108 transitions, 396 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:33:46,264 INFO L231 Difference]: Finished difference. Result has 111 places, 107 transitions, 300 flow [2024-11-08 17:33:46,264 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=300, PETRI_PLACES=111, PETRI_TRANSITIONS=107} [2024-11-08 17:33:46,265 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, 14 predicate places. [2024-11-08 17:33:46,265 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 107 transitions, 300 flow [2024-11-08 17:33:46,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 48.7) internal successors, (487), 10 states have internal predecessors, (487), 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) [2024-11-08 17:33:46,266 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:33:46,266 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:33:46,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 17:33:46,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:33:46,467 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 17:33:46,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:33:46,467 INFO L85 PathProgramCache]: Analyzing trace with hash 974389438, now seen corresponding path program 2 times [2024-11-08 17:33:46,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:33:46,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111666895] [2024-11-08 17:33:46,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:33:46,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:33:46,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:33:47,044 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 17:33:47,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:33:47,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111666895] [2024-11-08 17:33:47,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111666895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:33:47,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:33:47,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:33:47,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529743045] [2024-11-08 17:33:47,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:33:47,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:33:47,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:33:47,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:33:47,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:33:47,065 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 115 [2024-11-08 17:33:47,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 107 transitions, 300 flow. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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) [2024-11-08 17:33:47,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:33:47,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 115 [2024-11-08 17:33:47,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:33:48,072 INFO L124 PetriNetUnfolderBase]: 2450/5033 cut-off events. [2024-11-08 17:33:48,072 INFO L125 PetriNetUnfolderBase]: For 209/209 co-relation queries the response was YES. [2024-11-08 17:33:48,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8974 conditions, 5033 events. 2450/5033 cut-off events. For 209/209 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 36998 event pairs, 1176 based on Foata normal form. 7/4702 useless extension candidates. Maximal degree in co-relation 8912. Up to 3799 conditions per place. [2024-11-08 17:33:48,333 INFO L140 encePairwiseOnDemand]: 108/115 looper letters, 67 selfloop transitions, 3 changer transitions 0/116 dead transitions. [2024-11-08 17:33:48,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 116 transitions, 458 flow [2024-11-08 17:33:48,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:33:48,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:33:48,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 258 transitions. [2024-11-08 17:33:48,338 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5608695652173913 [2024-11-08 17:33:48,338 INFO L175 Difference]: Start difference. First operand has 111 places, 107 transitions, 300 flow. Second operand 4 states and 258 transitions. [2024-11-08 17:33:48,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 116 transitions, 458 flow [2024-11-08 17:33:48,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 116 transitions, 452 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-08 17:33:48,346 INFO L231 Difference]: Finished difference. Result has 111 places, 105 transitions, 302 flow [2024-11-08 17:33:48,347 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=302, PETRI_PLACES=111, PETRI_TRANSITIONS=105} [2024-11-08 17:33:48,347 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, 14 predicate places. [2024-11-08 17:33:48,348 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 105 transitions, 302 flow [2024-11-08 17:33:48,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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) [2024-11-08 17:33:48,348 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:33:48,348 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:33:48,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:33:48,349 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 17:33:48,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:33:48,354 INFO L85 PathProgramCache]: Analyzing trace with hash 560844849, now seen corresponding path program 1 times [2024-11-08 17:33:48,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:33:48,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721223897] [2024-11-08 17:33:48,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:33:48,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:33:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:33:49,316 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:33:49,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:33:49,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721223897] [2024-11-08 17:33:49,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721223897] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:33:49,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095579675] [2024-11-08 17:33:49,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:33:49,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:33:49,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:33:49,322 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:33:49,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 17:33:50,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:33:50,146 INFO L255 TraceCheckSpWp]: Trace formula consists of 3887 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 17:33:50,150 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:33:50,203 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:33:50,203 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:33:50,306 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:33:50,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095579675] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:33:50,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:33:50,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-08 17:33:50,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457252873] [2024-11-08 17:33:50,307 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:33:50,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 17:33:50,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:33:50,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 17:33:50,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-08 17:33:50,336 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 115 [2024-11-08 17:33:50,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 105 transitions, 302 flow. Second operand has 18 states, 18 states have (on average 48.666666666666664) internal successors, (876), 18 states have internal predecessors, (876), 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) [2024-11-08 17:33:50,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:33:50,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 115 [2024-11-08 17:33:50,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:33:51,585 INFO L124 PetriNetUnfolderBase]: 2420/4964 cut-off events. [2024-11-08 17:33:51,585 INFO L125 PetriNetUnfolderBase]: For 263/263 co-relation queries the response was YES. [2024-11-08 17:33:51,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8944 conditions, 4964 events. 2420/4964 cut-off events. For 263/263 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 36743 event pairs, 2231 based on Foata normal form. 4/4642 useless extension candidates. Maximal degree in co-relation 8811. Up to 3785 conditions per place. [2024-11-08 17:33:51,619 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 58 selfloop transitions, 15 changer transitions 0/118 dead transitions. [2024-11-08 17:33:51,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 118 transitions, 558 flow [2024-11-08 17:33:51,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:33:51,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 17:33:51,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 782 transitions. [2024-11-08 17:33:51,622 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4533333333333333 [2024-11-08 17:33:51,623 INFO L175 Difference]: Start difference. First operand has 111 places, 105 transitions, 302 flow. Second operand 15 states and 782 transitions. [2024-11-08 17:33:51,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 118 transitions, 558 flow [2024-11-08 17:33:51,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 118 transitions, 552 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 17:33:51,627 INFO L231 Difference]: Finished difference. Result has 127 places, 114 transitions, 430 flow [2024-11-08 17:33:51,627 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=430, PETRI_PLACES=127, PETRI_TRANSITIONS=114} [2024-11-08 17:33:51,628 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, 30 predicate places. [2024-11-08 17:33:51,628 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 114 transitions, 430 flow [2024-11-08 17:33:51,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 48.666666666666664) internal successors, (876), 18 states have internal predecessors, (876), 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) [2024-11-08 17:33:51,629 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:33:51,630 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:33:51,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 17:33:51,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:33:51,834 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 17:33:51,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:33:51,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1381892629, now seen corresponding path program 2 times [2024-11-08 17:33:51,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:33:51,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051388245] [2024-11-08 17:33:51,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:33:51,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:33:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:33:53,155 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:33:53,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:33:53,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051388245] [2024-11-08 17:33:53,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051388245] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:33:53,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052311028] [2024-11-08 17:33:53,156 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 17:33:53,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:33:53,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:33:53,159 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:33:53,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 17:33:53,983 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 17:33:53,984 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:33:53,998 INFO L255 TraceCheckSpWp]: Trace formula consists of 4111 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 17:33:54,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:33:54,115 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:33:54,116 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:33:54,483 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:33:54,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052311028] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:33:54,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:33:54,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 33 [2024-11-08 17:33:54,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413052203] [2024-11-08 17:33:54,485 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:33:54,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-08 17:33:54,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:33:54,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-08 17:33:54,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 17:33:54,552 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 115 [2024-11-08 17:33:54,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 114 transitions, 430 flow. Second operand has 34 states, 34 states have (on average 48.588235294117645) internal successors, (1652), 34 states have internal predecessors, (1652), 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) [2024-11-08 17:33:54,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:33:54,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 115 [2024-11-08 17:33:54,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:33:56,175 INFO L124 PetriNetUnfolderBase]: 2420/4996 cut-off events. [2024-11-08 17:33:56,175 INFO L125 PetriNetUnfolderBase]: For 614/614 co-relation queries the response was YES. [2024-11-08 17:33:56,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9146 conditions, 4996 events. 2420/4996 cut-off events. For 614/614 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 36770 event pairs, 2231 based on Foata normal form. 8/4678 useless extension candidates. Maximal degree in co-relation 8807. Up to 3785 conditions per place. [2024-11-08 17:33:56,226 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 66 selfloop transitions, 31 changer transitions 0/142 dead transitions. [2024-11-08 17:33:56,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 142 transitions, 948 flow [2024-11-08 17:33:56,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-08 17:33:56,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-11-08 17:33:56,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1562 transitions. [2024-11-08 17:33:56,233 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43814866760168303 [2024-11-08 17:33:56,233 INFO L175 Difference]: Start difference. First operand has 127 places, 114 transitions, 430 flow. Second operand 31 states and 1562 transitions. [2024-11-08 17:33:56,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 142 transitions, 948 flow [2024-11-08 17:33:56,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 142 transitions, 888 flow, removed 26 selfloop flow, removed 4 redundant places. [2024-11-08 17:33:56,243 INFO L231 Difference]: Finished difference. Result has 162 places, 131 transitions, 676 flow [2024-11-08 17:33:56,244 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=676, PETRI_PLACES=162, PETRI_TRANSITIONS=131} [2024-11-08 17:33:56,245 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, 65 predicate places. [2024-11-08 17:33:56,245 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 131 transitions, 676 flow [2024-11-08 17:33:56,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 48.588235294117645) internal successors, (1652), 34 states have internal predecessors, (1652), 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) [2024-11-08 17:33:56,247 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:33:56,247 INFO L204 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:33:56,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 17:33:56,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:33:56,448 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 17:33:56,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:33:56,452 INFO L85 PathProgramCache]: Analyzing trace with hash -836399651, now seen corresponding path program 3 times [2024-11-08 17:33:56,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:33:56,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866997762] [2024-11-08 17:33:56,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:33:56,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:33:56,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:33:59,324 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:33:59,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:33:59,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866997762] [2024-11-08 17:33:59,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866997762] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:33:59,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078609671] [2024-11-08 17:33:59,326 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 17:33:59,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:33:59,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:33:59,328 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:33:59,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 17:37:14,660 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2024-11-08 17:37:14,661 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:37:14,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 4559 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-08 17:37:14,719 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:37:14,856 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:37:14,856 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:37:15,911 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:37:15,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078609671] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:37:15,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:37:15,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 65 [2024-11-08 17:37:15,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776154568] [2024-11-08 17:37:15,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:37:15,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-11-08 17:37:15,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:37:15,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-11-08 17:37:15,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2024-11-08 17:37:16,015 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 115 [2024-11-08 17:37:16,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 131 transitions, 676 flow. Second operand has 66 states, 66 states have (on average 48.54545454545455) internal successors, (3204), 66 states have internal predecessors, (3204), 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) [2024-11-08 17:37:16,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:37:16,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 115 [2024-11-08 17:37:16,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:37:18,245 INFO L124 PetriNetUnfolderBase]: 2420/5060 cut-off events. [2024-11-08 17:37:18,245 INFO L125 PetriNetUnfolderBase]: For 2354/2354 co-relation queries the response was YES. [2024-11-08 17:37:18,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9583 conditions, 5060 events. 2420/5060 cut-off events. For 2354/2354 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 36706 event pairs, 2231 based on Foata normal form. 16/4750 useless extension candidates. Maximal degree in co-relation 8815. Up to 3785 conditions per place. [2024-11-08 17:37:18,282 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 82 selfloop transitions, 63 changer transitions 0/190 dead transitions. [2024-11-08 17:37:18,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 190 transitions, 1772 flow [2024-11-08 17:37:18,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-08 17:37:18,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2024-11-08 17:37:18,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 3122 transitions. [2024-11-08 17:37:18,293 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43091787439613527 [2024-11-08 17:37:18,293 INFO L175 Difference]: Start difference. First operand has 162 places, 131 transitions, 676 flow. Second operand 63 states and 3122 transitions. [2024-11-08 17:37:18,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 190 transitions, 1772 flow [2024-11-08 17:37:18,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 190 transitions, 1746 flow, removed 1 selfloop flow, removed 12 redundant places. [2024-11-08 17:37:18,307 INFO L231 Difference]: Finished difference. Result has 229 places, 164 transitions, 1280 flow [2024-11-08 17:37:18,307 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=1280, PETRI_PLACES=229, PETRI_TRANSITIONS=164} [2024-11-08 17:37:18,308 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, 132 predicate places. [2024-11-08 17:37:18,308 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 164 transitions, 1280 flow [2024-11-08 17:37:18,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 48.54545454545455) internal successors, (3204), 66 states have internal predecessors, (3204), 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) [2024-11-08 17:37:18,310 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:37:18,310 INFO L204 CegarLoopForPetriNet]: trace histogram [31, 31, 31, 31, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:37:18,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 17:37:18,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7ffa1f-6ea0-4a20-b980-05d375ef9b45/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:37:18,512 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 17:37:18,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:37:18,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1494304109, now seen corresponding path program 4 times [2024-11-08 17:37:18,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:37:18,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560751836] [2024-11-08 17:37:18,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:37:18,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:37:18,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat