./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB --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 bf26be9bd61f36f1b6136fc4e500a91a95d08528025fd00027577283116c4a35 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:52:49,617 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:52:49,751 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 04:52:49,767 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:52:49,767 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:52:49,815 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:52:49,816 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:52:49,816 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:52:49,817 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:52:49,817 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:52:49,819 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:52:49,819 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:52:49,819 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:52:49,820 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:52:49,820 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:52:49,820 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:52:49,821 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:52:49,821 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:52:49,821 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:52:49,821 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:52:49,821 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:52:49,822 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:52:49,822 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:52:49,822 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:52:49,822 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 04:52:49,822 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:52:49,822 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:52:49,823 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:52:49,823 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:52:49,823 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:52:49,823 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:52:49,823 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:52:49,823 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:52:49,824 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:52:49,825 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:52:49,825 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:52:49,825 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:52:49,825 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:52:49,825 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:52:49,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:52:49,826 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:52:49,826 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:52:49,826 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:52:49,826 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:52:49,826 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:52:49,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:52:49,827 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:52:49,827 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:52:49,827 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:52:49,827 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:52:49,827 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB 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 -> bf26be9bd61f36f1b6136fc4e500a91a95d08528025fd00027577283116c4a35 [2024-11-28 04:52:50,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:52:50,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:52:50,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:52:50,251 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:52:50,251 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:52:50,255 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c [2024-11-28 04:52:54,044 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/data/c4d6baf1a/d26cee0d95014d29a99e9fd6e530da9f/FLAGd8561bb18 [2024-11-28 04:52:54,411 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:52:54,412 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c [2024-11-28 04:52:54,426 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/data/c4d6baf1a/d26cee0d95014d29a99e9fd6e530da9f/FLAGd8561bb18 [2024-11-28 04:52:54,455 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/data/c4d6baf1a/d26cee0d95014d29a99e9fd6e530da9f [2024-11-28 04:52:54,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:52:54,462 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:52:54,465 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:52:54,466 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:52:54,472 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:52:54,473 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:52:54" (1/1) ... [2024-11-28 04:52:54,477 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d04bf95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:54, skipping insertion in model container [2024-11-28 04:52:54,478 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:52:54" (1/1) ... [2024-11-28 04:52:54,502 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:52:54,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:52:54,831 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:52:54,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:52:54,917 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:52:54,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:54 WrapperNode [2024-11-28 04:52:54,918 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:52:54,919 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:52:54,919 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:52:54,920 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:52:54,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:54" (1/1) ... [2024-11-28 04:52:54,949 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:54" (1/1) ... [2024-11-28 04:52:55,000 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 123 [2024-11-28 04:52:55,000 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:52:55,001 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:52:55,001 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:52:55,001 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:52:55,016 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:54" (1/1) ... [2024-11-28 04:52:55,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:54" (1/1) ... [2024-11-28 04:52:55,020 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:54" (1/1) ... [2024-11-28 04:52:55,051 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-28 04:52:55,054 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:54" (1/1) ... [2024-11-28 04:52:55,054 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:54" (1/1) ... [2024-11-28 04:52:55,064 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:54" (1/1) ... [2024-11-28 04:52:55,065 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:54" (1/1) ... [2024-11-28 04:52:55,070 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:54" (1/1) ... [2024-11-28 04:52:55,072 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:54" (1/1) ... [2024-11-28 04:52:55,073 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:54" (1/1) ... [2024-11-28 04:52:55,076 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:52:55,077 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:52:55,077 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:52:55,078 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:52:55,079 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:54" (1/1) ... [2024-11-28 04:52:55,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:52:55,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:55,132 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:52:55,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:52:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:52:55,168 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-28 04:52:55,168 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-28 04:52:55,168 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-28 04:52:55,168 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-28 04:52:55,168 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-28 04:52:55,168 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-28 04:52:55,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:52:55,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:52:55,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 04:52:55,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 04:52:55,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 04:52:55,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:52:55,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:52:55,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 04:52:55,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 04:52:55,174 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 04:52:55,351 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:52:55,355 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:52:55,858 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:52:55,858 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:52:56,172 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:52:56,173 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-28 04:52:56,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:52:56 BoogieIcfgContainer [2024-11-28 04:52:56,174 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:52:56,176 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:52:56,177 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:52:56,189 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:52:56,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:52:54" (1/3) ... [2024-11-28 04:52:56,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d404fb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:52:56, skipping insertion in model container [2024-11-28 04:52:56,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:54" (2/3) ... [2024-11-28 04:52:56,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d404fb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:52:56, skipping insertion in model container [2024-11-28 04:52:56,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:52:56" (3/3) ... [2024-11-28 04:52:56,194 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-min-max-1.wvr.c [2024-11-28 04:52:56,215 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:52:56,217 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-min-max-1.wvr.c that has 4 procedures, 61 locations, 1 initial locations, 3 loop locations, and 6 error locations. [2024-11-28 04:52:56,218 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 04:52:56,359 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-28 04:52:56,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 65 transitions, 151 flow [2024-11-28 04:52:56,505 INFO L124 PetriNetUnfolderBase]: 5/62 cut-off events. [2024-11-28 04:52:56,510 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-28 04:52:56,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 62 events. 5/62 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 107 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2024-11-28 04:52:56,519 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 65 transitions, 151 flow [2024-11-28 04:52:56,525 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 59 transitions, 130 flow [2024-11-28 04:52:56,536 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:52:56,558 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;@258f95ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:52:56,558 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-28 04:52:56,582 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:52:56,582 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 04:52:56,582 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:52:56,582 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:52:56,583 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:52:56,586 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 04:52:56,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:56,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1100793329, now seen corresponding path program 1 times [2024-11-28 04:52:56,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:56,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773970842] [2024-11-28 04:52:56,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:56,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:57,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:52:57,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:52:57,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773970842] [2024-11-28 04:52:57,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773970842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:52:57,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:52:57,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:52:57,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667066130] [2024-11-28 04:52:57,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:52:57,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:52:57,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:57,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:52:57,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:52:57,246 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 65 [2024-11-28 04:52:57,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 59 transitions, 130 flow. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 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) [2024-11-28 04:52:57,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:52:57,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 65 [2024-11-28 04:52:57,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:52:57,884 INFO L124 PetriNetUnfolderBase]: 767/1429 cut-off events. [2024-11-28 04:52:57,884 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-11-28 04:52:57,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2591 conditions, 1429 events. 767/1429 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 8512 event pairs, 526 based on Foata normal form. 1/1009 useless extension candidates. Maximal degree in co-relation 2456. Up to 1028 conditions per place. [2024-11-28 04:52:57,918 INFO L140 encePairwiseOnDemand]: 59/65 looper letters, 31 selfloop transitions, 4 changer transitions 0/62 dead transitions. [2024-11-28 04:52:57,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 62 transitions, 206 flow [2024-11-28 04:52:57,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:52:57,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:52:57,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 157 transitions. [2024-11-28 04:52:57,943 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6038461538461538 [2024-11-28 04:52:57,947 INFO L175 Difference]: Start difference. First operand has 64 places, 59 transitions, 130 flow. Second operand 4 states and 157 transitions. [2024-11-28 04:52:57,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 62 transitions, 206 flow [2024-11-28 04:52:57,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 62 transitions, 200 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 04:52:57,967 INFO L231 Difference]: Finished difference. Result has 65 places, 62 transitions, 153 flow [2024-11-28 04:52:57,970 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=153, PETRI_PLACES=65, PETRI_TRANSITIONS=62} [2024-11-28 04:52:57,977 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 1 predicate places. [2024-11-28 04:52:57,977 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 62 transitions, 153 flow [2024-11-28 04:52:57,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 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) [2024-11-28 04:52:57,980 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:52:57,980 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:52:57,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:52:57,981 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 04:52:57,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:57,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1658296682, now seen corresponding path program 1 times [2024-11-28 04:52:57,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:57,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957818030] [2024-11-28 04:52:57,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:57,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:58,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:58,297 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:52:58,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:52:58,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957818030] [2024-11-28 04:52:58,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957818030] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:58,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31161471] [2024-11-28 04:52:58,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:58,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:58,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:58,302 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:58,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:52:58,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:58,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:52:58,447 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:58,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:52:58,541 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:52:58,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31161471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:52:58,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:52:58,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-28 04:52:58,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508312184] [2024-11-28 04:52:58,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:52:58,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:52:58,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:58,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:52:58,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:52:58,562 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 65 [2024-11-28 04:52:58,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 62 transitions, 153 flow. Second operand has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 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) [2024-11-28 04:52:58,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:52:58,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 65 [2024-11-28 04:52:58,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:52:59,098 INFO L124 PetriNetUnfolderBase]: 767/1428 cut-off events. [2024-11-28 04:52:59,098 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-28 04:52:59,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2585 conditions, 1428 events. 767/1428 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 8505 event pairs, 526 based on Foata normal form. 1/1009 useless extension candidates. Maximal degree in co-relation 2558. Up to 1023 conditions per place. [2024-11-28 04:52:59,116 INFO L140 encePairwiseOnDemand]: 60/65 looper letters, 27 selfloop transitions, 7 changer transitions 0/61 dead transitions. [2024-11-28 04:52:59,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 61 transitions, 217 flow [2024-11-28 04:52:59,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:52:59,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:52:59,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 215 transitions. [2024-11-28 04:52:59,120 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5512820512820513 [2024-11-28 04:52:59,121 INFO L175 Difference]: Start difference. First operand has 65 places, 62 transitions, 153 flow. Second operand 6 states and 215 transitions. [2024-11-28 04:52:59,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 61 transitions, 217 flow [2024-11-28 04:52:59,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 61 transitions, 214 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:52:59,127 INFO L231 Difference]: Finished difference. Result has 68 places, 61 transitions, 160 flow [2024-11-28 04:52:59,128 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=160, PETRI_PLACES=68, PETRI_TRANSITIONS=61} [2024-11-28 04:52:59,129 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 4 predicate places. [2024-11-28 04:52:59,130 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 61 transitions, 160 flow [2024-11-28 04:52:59,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 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) [2024-11-28 04:52:59,131 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:52:59,131 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:52:59,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:52:59,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:59,336 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 04:52:59,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:59,337 INFO L85 PathProgramCache]: Analyzing trace with hash 132410875, now seen corresponding path program 1 times [2024-11-28 04:52:59,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:59,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257868105] [2024-11-28 04:52:59,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:59,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:59,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:59,618 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:52:59,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:52:59,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257868105] [2024-11-28 04:52:59,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257868105] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:59,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868248814] [2024-11-28 04:52:59,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:59,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:59,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:59,626 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:59,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:52:59,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:59,746 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:52:59,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:59,806 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:52:59,806 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:52:59,900 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:52:59,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868248814] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:52:59,902 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:52:59,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-28 04:52:59,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875643739] [2024-11-28 04:52:59,903 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:52:59,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:52:59,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:59,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:52:59,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:52:59,940 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 65 [2024-11-28 04:52:59,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 61 transitions, 160 flow. Second operand has 12 states, 12 states have (on average 31.583333333333332) internal successors, (379), 12 states have internal predecessors, (379), 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) [2024-11-28 04:52:59,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:52:59,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 65 [2024-11-28 04:52:59,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:53:00,465 INFO L124 PetriNetUnfolderBase]: 770/1440 cut-off events. [2024-11-28 04:53:00,466 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-11-28 04:53:00,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2629 conditions, 1440 events. 770/1440 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 8624 event pairs, 526 based on Foata normal form. 3/1021 useless extension candidates. Maximal degree in co-relation 2559. Up to 1030 conditions per place. [2024-11-28 04:53:00,484 INFO L140 encePairwiseOnDemand]: 60/65 looper letters, 30 selfloop transitions, 13 changer transitions 0/70 dead transitions. [2024-11-28 04:53:00,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 70 transitions, 300 flow [2024-11-28 04:53:00,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:53:00,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 04:53:00,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 346 transitions. [2024-11-28 04:53:00,488 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5323076923076923 [2024-11-28 04:53:00,488 INFO L175 Difference]: Start difference. First operand has 68 places, 61 transitions, 160 flow. Second operand 10 states and 346 transitions. [2024-11-28 04:53:00,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 70 transitions, 300 flow [2024-11-28 04:53:00,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 70 transitions, 254 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-28 04:53:00,497 INFO L231 Difference]: Finished difference. Result has 75 places, 70 transitions, 212 flow [2024-11-28 04:53:00,498 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=212, PETRI_PLACES=75, PETRI_TRANSITIONS=70} [2024-11-28 04:53:00,499 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 11 predicate places. [2024-11-28 04:53:00,499 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 70 transitions, 212 flow [2024-11-28 04:53:00,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 31.583333333333332) internal successors, (379), 12 states have internal predecessors, (379), 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) [2024-11-28 04:53:00,501 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:53:00,501 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:00,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:53:00,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:00,706 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 04:53:00,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:00,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1391014040, now seen corresponding path program 1 times [2024-11-28 04:53:00,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:00,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972621469] [2024-11-28 04:53:00,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:00,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:00,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:00,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:00,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972621469] [2024-11-28 04:53:00,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972621469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:00,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:00,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:53:00,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188837794] [2024-11-28 04:53:00,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:00,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:53:00,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:00,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:53:00,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:53:00,896 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 65 [2024-11-28 04:53:00,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 70 transitions, 212 flow. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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) [2024-11-28 04:53:00,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:53:00,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 65 [2024-11-28 04:53:00,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:53:01,437 INFO L124 PetriNetUnfolderBase]: 1553/2487 cut-off events. [2024-11-28 04:53:01,438 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-11-28 04:53:01,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4896 conditions, 2487 events. 1553/2487 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 13632 event pairs, 771 based on Foata normal form. 44/1934 useless extension candidates. Maximal degree in co-relation 4862. Up to 1450 conditions per place. [2024-11-28 04:53:01,464 INFO L140 encePairwiseOnDemand]: 59/65 looper letters, 72 selfloop transitions, 4 changer transitions 0/100 dead transitions. [2024-11-28 04:53:01,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 100 transitions, 432 flow [2024-11-28 04:53:01,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:53:01,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:53:01,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 178 transitions. [2024-11-28 04:53:01,468 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6846153846153846 [2024-11-28 04:53:01,468 INFO L175 Difference]: Start difference. First operand has 75 places, 70 transitions, 212 flow. Second operand 4 states and 178 transitions. [2024-11-28 04:53:01,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 100 transitions, 432 flow [2024-11-28 04:53:01,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 100 transitions, 421 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-28 04:53:01,474 INFO L231 Difference]: Finished difference. Result has 78 places, 73 transitions, 230 flow [2024-11-28 04:53:01,475 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=230, PETRI_PLACES=78, PETRI_TRANSITIONS=73} [2024-11-28 04:53:01,477 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 14 predicate places. [2024-11-28 04:53:01,477 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 73 transitions, 230 flow [2024-11-28 04:53:01,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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) [2024-11-28 04:53:01,478 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:53:01,478 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:01,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:53:01,478 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 04:53:01,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:01,479 INFO L85 PathProgramCache]: Analyzing trace with hash 630317180, now seen corresponding path program 1 times [2024-11-28 04:53:01,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:01,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286830001] [2024-11-28 04:53:01,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:01,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:01,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:01,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:01,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286830001] [2024-11-28 04:53:01,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286830001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:01,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:01,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:53:01,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091268224] [2024-11-28 04:53:01,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:01,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:53:01,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:01,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:53:01,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:53:01,701 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 65 [2024-11-28 04:53:01,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 73 transitions, 230 flow. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 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) [2024-11-28 04:53:01,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:53:01,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 65 [2024-11-28 04:53:01,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:53:02,435 INFO L124 PetriNetUnfolderBase]: 2201/3508 cut-off events. [2024-11-28 04:53:02,436 INFO L125 PetriNetUnfolderBase]: For 407/660 co-relation queries the response was YES. [2024-11-28 04:53:02,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7542 conditions, 3508 events. 2201/3508 cut-off events. For 407/660 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 19714 event pairs, 1127 based on Foata normal form. 207/3134 useless extension candidates. Maximal degree in co-relation 7506. Up to 2038 conditions per place. [2024-11-28 04:53:02,473 INFO L140 encePairwiseOnDemand]: 59/65 looper letters, 76 selfloop transitions, 4 changer transitions 0/105 dead transitions. [2024-11-28 04:53:02,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 105 transitions, 480 flow [2024-11-28 04:53:02,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:53:02,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:53:02,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 176 transitions. [2024-11-28 04:53:02,475 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.676923076923077 [2024-11-28 04:53:02,476 INFO L175 Difference]: Start difference. First operand has 78 places, 73 transitions, 230 flow. Second operand 4 states and 176 transitions. [2024-11-28 04:53:02,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 105 transitions, 480 flow [2024-11-28 04:53:02,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 105 transitions, 473 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:53:02,482 INFO L231 Difference]: Finished difference. Result has 82 places, 76 transitions, 256 flow [2024-11-28 04:53:02,483 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=256, PETRI_PLACES=82, PETRI_TRANSITIONS=76} [2024-11-28 04:53:02,485 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 18 predicate places. [2024-11-28 04:53:02,485 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 76 transitions, 256 flow [2024-11-28 04:53:02,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 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) [2024-11-28 04:53:02,486 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:53:02,486 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:02,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:53:02,486 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 04:53:02,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:02,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1802867614, now seen corresponding path program 2 times [2024-11-28 04:53:02,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:02,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196536637] [2024-11-28 04:53:02,490 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:53:02,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:02,519 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:53:02,519 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:53:02,679 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-28 04:53:02,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:02,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196536637] [2024-11-28 04:53:02,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196536637] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:02,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450351552] [2024-11-28 04:53:02,679 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:53:02,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:02,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:02,685 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:02,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:53:02,799 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:53:02,800 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:53:02,801 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:53:02,802 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:02,907 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-28 04:53:02,907 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:03,012 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-28 04:53:03,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450351552] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:53:03,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:53:03,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-11-28 04:53:03,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354432843] [2024-11-28 04:53:03,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:03,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:53:03,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:03,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:53:03,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:53:03,034 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 65 [2024-11-28 04:53:03,036 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 76 transitions, 256 flow. Second operand has 6 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 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) [2024-11-28 04:53:03,037 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:53:03,037 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 65 [2024-11-28 04:53:03,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:53:03,615 INFO L124 PetriNetUnfolderBase]: 1552/2788 cut-off events. [2024-11-28 04:53:03,615 INFO L125 PetriNetUnfolderBase]: For 507/671 co-relation queries the response was YES. [2024-11-28 04:53:03,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6138 conditions, 2788 events. 1552/2788 cut-off events. For 507/671 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 17247 event pairs, 1127 based on Foata normal form. 117/2522 useless extension candidates. Maximal degree in co-relation 6105. Up to 2025 conditions per place. [2024-11-28 04:53:03,644 INFO L140 encePairwiseOnDemand]: 57/65 looper letters, 28 selfloop transitions, 19 changer transitions 0/75 dead transitions. [2024-11-28 04:53:03,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 75 transitions, 340 flow [2024-11-28 04:53:03,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:53:03,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:53:03,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 206 transitions. [2024-11-28 04:53:03,649 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5282051282051282 [2024-11-28 04:53:03,649 INFO L175 Difference]: Start difference. First operand has 82 places, 76 transitions, 256 flow. Second operand 6 states and 206 transitions. [2024-11-28 04:53:03,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 75 transitions, 340 flow [2024-11-28 04:53:03,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 75 transitions, 327 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-28 04:53:03,660 INFO L231 Difference]: Finished difference. Result has 81 places, 75 transitions, 271 flow [2024-11-28 04:53:03,660 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=271, PETRI_PLACES=81, PETRI_TRANSITIONS=75} [2024-11-28 04:53:03,661 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 17 predicate places. [2024-11-28 04:53:03,661 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 75 transitions, 271 flow [2024-11-28 04:53:03,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 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) [2024-11-28 04:53:03,663 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:53:03,663 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:03,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 04:53:03,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:03,864 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 04:53:03,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:03,865 INFO L85 PathProgramCache]: Analyzing trace with hash 534729166, now seen corresponding path program 1 times [2024-11-28 04:53:03,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:03,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68152265] [2024-11-28 04:53:03,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:03,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:04,065 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:53:04,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:04,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68152265] [2024-11-28 04:53:04,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68152265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:04,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:04,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:53:04,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820619081] [2024-11-28 04:53:04,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:04,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:53:04,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:04,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:53:04,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:53:04,072 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 65 [2024-11-28 04:53:04,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 75 transitions, 271 flow. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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) [2024-11-28 04:53:04,073 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:53:04,073 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 65 [2024-11-28 04:53:04,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:53:04,548 INFO L124 PetriNetUnfolderBase]: 1551/2787 cut-off events. [2024-11-28 04:53:04,549 INFO L125 PetriNetUnfolderBase]: For 507/671 co-relation queries the response was YES. [2024-11-28 04:53:04,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6020 conditions, 2787 events. 1551/2787 cut-off events. For 507/671 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 17226 event pairs, 1127 based on Foata normal form. 116/2517 useless extension candidates. Maximal degree in co-relation 5922. Up to 2031 conditions per place. [2024-11-28 04:53:04,574 INFO L140 encePairwiseOnDemand]: 61/65 looper letters, 43 selfloop transitions, 3 changer transitions 0/74 dead transitions. [2024-11-28 04:53:04,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 74 transitions, 358 flow [2024-11-28 04:53:04,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:53:04,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:53:04,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 158 transitions. [2024-11-28 04:53:04,579 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6076923076923076 [2024-11-28 04:53:04,579 INFO L175 Difference]: Start difference. First operand has 81 places, 75 transitions, 271 flow. Second operand 4 states and 158 transitions. [2024-11-28 04:53:04,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 74 transitions, 358 flow [2024-11-28 04:53:04,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 74 transitions, 322 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 04:53:04,592 INFO L231 Difference]: Finished difference. Result has 79 places, 74 transitions, 236 flow [2024-11-28 04:53:04,593 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=236, PETRI_PLACES=79, PETRI_TRANSITIONS=74} [2024-11-28 04:53:04,593 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 15 predicate places. [2024-11-28 04:53:04,593 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 74 transitions, 236 flow [2024-11-28 04:53:04,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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) [2024-11-28 04:53:04,594 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:53:04,594 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:04,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:53:04,594 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 04:53:04,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:04,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1524401685, now seen corresponding path program 1 times [2024-11-28 04:53:04,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:04,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289173235] [2024-11-28 04:53:04,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:04,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:04,806 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:53:04,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:04,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289173235] [2024-11-28 04:53:04,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289173235] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:04,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227390214] [2024-11-28 04:53:04,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:04,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:04,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:04,810 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:04,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:53:04,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:04,942 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:53:04,944 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:05,185 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:05,186 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:05,448 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:05,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227390214] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:53:05,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:53:05,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-11-28 04:53:05,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602354513] [2024-11-28 04:53:05,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:05,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:53:05,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:05,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:53:05,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:53:05,603 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 65 [2024-11-28 04:53:05,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 74 transitions, 236 flow. Second operand has 19 states, 19 states have (on average 27.473684210526315) internal successors, (522), 19 states have internal predecessors, (522), 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) [2024-11-28 04:53:05,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:53:05,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 65 [2024-11-28 04:53:05,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:53:07,415 INFO L124 PetriNetUnfolderBase]: 3333/5308 cut-off events. [2024-11-28 04:53:07,416 INFO L125 PetriNetUnfolderBase]: For 1017/1438 co-relation queries the response was YES. [2024-11-28 04:53:07,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12089 conditions, 5308 events. 3333/5308 cut-off events. For 1017/1438 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 32143 event pairs, 630 based on Foata normal form. 341/5015 useless extension candidates. Maximal degree in co-relation 12050. Up to 822 conditions per place. [2024-11-28 04:53:07,471 INFO L140 encePairwiseOnDemand]: 53/65 looper letters, 147 selfloop transitions, 25 changer transitions 4/199 dead transitions. [2024-11-28 04:53:07,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 199 transitions, 946 flow [2024-11-28 04:53:07,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:53:07,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-28 04:53:07,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 504 transitions. [2024-11-28 04:53:07,475 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5538461538461539 [2024-11-28 04:53:07,475 INFO L175 Difference]: Start difference. First operand has 79 places, 74 transitions, 236 flow. Second operand 14 states and 504 transitions. [2024-11-28 04:53:07,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 199 transitions, 946 flow [2024-11-28 04:53:07,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 199 transitions, 940 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 04:53:07,495 INFO L231 Difference]: Finished difference. Result has 89 places, 78 transitions, 302 flow [2024-11-28 04:53:07,495 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=302, PETRI_PLACES=89, PETRI_TRANSITIONS=78} [2024-11-28 04:53:07,497 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 25 predicate places. [2024-11-28 04:53:07,498 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 78 transitions, 302 flow [2024-11-28 04:53:07,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 27.473684210526315) internal successors, (522), 19 states have internal predecessors, (522), 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) [2024-11-28 04:53:07,499 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:53:07,500 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:07,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 04:53:07,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:07,704 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 04:53:07,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:07,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1287165792, now seen corresponding path program 1 times [2024-11-28 04:53:07,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:07,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472168059] [2024-11-28 04:53:07,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:07,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:07,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:07,889 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:53:07,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:07,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472168059] [2024-11-28 04:53:07,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472168059] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:07,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209946216] [2024-11-28 04:53:07,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:07,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:07,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:07,893 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:07,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:53:08,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:08,012 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:53:08,016 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:08,249 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:08,250 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:08,496 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:08,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209946216] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:53:08,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:53:08,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-11-28 04:53:08,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368209207] [2024-11-28 04:53:08,497 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:08,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:53:08,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:08,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:53:08,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:53:08,624 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 65 [2024-11-28 04:53:08,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 78 transitions, 302 flow. Second operand has 19 states, 19 states have (on average 27.68421052631579) internal successors, (526), 19 states have internal predecessors, (526), 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) [2024-11-28 04:53:08,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:53:08,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 65 [2024-11-28 04:53:08,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:53:10,310 INFO L124 PetriNetUnfolderBase]: 3149/5096 cut-off events. [2024-11-28 04:53:10,310 INFO L125 PetriNetUnfolderBase]: For 2469/2535 co-relation queries the response was YES. [2024-11-28 04:53:10,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12498 conditions, 5096 events. 3149/5096 cut-off events. For 2469/2535 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 31209 event pairs, 615 based on Foata normal form. 114/4608 useless extension candidates. Maximal degree in co-relation 8885. Up to 902 conditions per place. [2024-11-28 04:53:10,425 INFO L140 encePairwiseOnDemand]: 53/65 looper letters, 95 selfloop transitions, 19 changer transitions 57/193 dead transitions. [2024-11-28 04:53:10,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 193 transitions, 1045 flow [2024-11-28 04:53:10,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:53:10,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-28 04:53:10,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 497 transitions. [2024-11-28 04:53:10,429 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5461538461538461 [2024-11-28 04:53:10,429 INFO L175 Difference]: Start difference. First operand has 89 places, 78 transitions, 302 flow. Second operand 14 states and 497 transitions. [2024-11-28 04:53:10,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 193 transitions, 1045 flow [2024-11-28 04:53:10,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 193 transitions, 968 flow, removed 11 selfloop flow, removed 7 redundant places. [2024-11-28 04:53:10,446 INFO L231 Difference]: Finished difference. Result has 95 places, 71 transitions, 272 flow [2024-11-28 04:53:10,446 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=272, PETRI_PLACES=95, PETRI_TRANSITIONS=71} [2024-11-28 04:53:10,447 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 31 predicate places. [2024-11-28 04:53:10,447 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 71 transitions, 272 flow [2024-11-28 04:53:10,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 27.68421052631579) internal successors, (526), 19 states have internal predecessors, (526), 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) [2024-11-28 04:53:10,448 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:53:10,448 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:10,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:53:10,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:10,649 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 04:53:10,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:10,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1440741203, now seen corresponding path program 1 times [2024-11-28 04:53:10,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:10,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805798367] [2024-11-28 04:53:10,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:10,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:10,817 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 04:53:10,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:10,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805798367] [2024-11-28 04:53:10,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805798367] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:10,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554272631] [2024-11-28 04:53:10,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:10,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:10,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:10,822 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:10,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:53:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:10,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:53:10,953 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:11,000 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 04:53:11,000 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:11,072 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 04:53:11,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554272631] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:53:11,072 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:53:11,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-28 04:53:11,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491254180] [2024-11-28 04:53:11,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:11,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:53:11,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:11,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:53:11,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:53:11,097 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 65 [2024-11-28 04:53:11,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 71 transitions, 272 flow. Second operand has 12 states, 12 states have (on average 30.916666666666668) internal successors, (371), 12 states have internal predecessors, (371), 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) [2024-11-28 04:53:11,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:53:11,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 65 [2024-11-28 04:53:11,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:53:12,583 INFO L124 PetriNetUnfolderBase]: 4694/7359 cut-off events. [2024-11-28 04:53:12,583 INFO L125 PetriNetUnfolderBase]: For 3961/4093 co-relation queries the response was YES. [2024-11-28 04:53:12,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18385 conditions, 7359 events. 4694/7359 cut-off events. For 3961/4093 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 43375 event pairs, 1275 based on Foata normal form. 204/6717 useless extension candidates. Maximal degree in co-relation 18290. Up to 2356 conditions per place. [2024-11-28 04:53:12,639 INFO L140 encePairwiseOnDemand]: 60/65 looper letters, 168 selfloop transitions, 13 changer transitions 0/204 dead transitions. [2024-11-28 04:53:12,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 204 transitions, 1108 flow [2024-11-28 04:53:12,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:53:12,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 04:53:12,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 436 transitions. [2024-11-28 04:53:12,644 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6707692307692308 [2024-11-28 04:53:12,644 INFO L175 Difference]: Start difference. First operand has 95 places, 71 transitions, 272 flow. Second operand 10 states and 436 transitions. [2024-11-28 04:53:12,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 204 transitions, 1108 flow [2024-11-28 04:53:12,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 204 transitions, 1002 flow, removed 24 selfloop flow, removed 11 redundant places. [2024-11-28 04:53:12,669 INFO L231 Difference]: Finished difference. Result has 90 places, 80 transitions, 324 flow [2024-11-28 04:53:12,669 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=324, PETRI_PLACES=90, PETRI_TRANSITIONS=80} [2024-11-28 04:53:12,671 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 26 predicate places. [2024-11-28 04:53:12,671 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 80 transitions, 324 flow [2024-11-28 04:53:12,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 30.916666666666668) internal successors, (371), 12 states have internal predecessors, (371), 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) [2024-11-28 04:53:12,672 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:53:12,672 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:12,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 04:53:12,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 04:53:12,873 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 04:53:12,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:12,873 INFO L85 PathProgramCache]: Analyzing trace with hash 58390967, now seen corresponding path program 1 times [2024-11-28 04:53:12,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:12,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376612308] [2024-11-28 04:53:12,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:12,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:13,107 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 04:53:13,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:13,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376612308] [2024-11-28 04:53:13,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376612308] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:13,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383422986] [2024-11-28 04:53:13,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:13,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:13,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:13,112 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:13,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:53:13,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:13,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:53:13,250 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:13,304 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 04:53:13,304 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:13,384 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 04:53:13,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383422986] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:53:13,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:53:13,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-28 04:53:13,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689064447] [2024-11-28 04:53:13,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:13,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:53:13,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:13,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:53:13,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:53:13,412 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 65 [2024-11-28 04:53:13,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 80 transitions, 324 flow. Second operand has 12 states, 12 states have (on average 31.083333333333332) internal successors, (373), 12 states have internal predecessors, (373), 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) [2024-11-28 04:53:13,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:53:13,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 65 [2024-11-28 04:53:13,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:53:15,414 INFO L124 PetriNetUnfolderBase]: 10352/15804 cut-off events. [2024-11-28 04:53:15,415 INFO L125 PetriNetUnfolderBase]: For 10801/11077 co-relation queries the response was YES. [2024-11-28 04:53:15,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39419 conditions, 15804 events. 10352/15804 cut-off events. For 10801/11077 co-relation queries the response was YES. Maximal size of possible extension queue 367. Compared 95898 event pairs, 2663 based on Foata normal form. 426/14497 useless extension candidates. Maximal degree in co-relation 39331. Up to 4966 conditions per place. [2024-11-28 04:53:15,541 INFO L140 encePairwiseOnDemand]: 60/65 looper letters, 214 selfloop transitions, 13 changer transitions 0/253 dead transitions. [2024-11-28 04:53:15,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 253 transitions, 1580 flow [2024-11-28 04:53:15,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:53:15,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 04:53:15,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 428 transitions. [2024-11-28 04:53:15,545 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6584615384615384 [2024-11-28 04:53:15,545 INFO L175 Difference]: Start difference. First operand has 90 places, 80 transitions, 324 flow. Second operand 10 states and 428 transitions. [2024-11-28 04:53:15,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 253 transitions, 1580 flow [2024-11-28 04:53:15,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 253 transitions, 1505 flow, removed 27 selfloop flow, removed 2 redundant places. [2024-11-28 04:53:15,588 INFO L231 Difference]: Finished difference. Result has 100 places, 89 transitions, 399 flow [2024-11-28 04:53:15,589 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=399, PETRI_PLACES=100, PETRI_TRANSITIONS=89} [2024-11-28 04:53:15,590 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 36 predicate places. [2024-11-28 04:53:15,590 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 89 transitions, 399 flow [2024-11-28 04:53:15,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 31.083333333333332) internal successors, (373), 12 states have internal predecessors, (373), 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) [2024-11-28 04:53:15,591 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:53:15,591 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:15,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 04:53:15,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:15,796 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 04:53:15,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:15,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1665898615, now seen corresponding path program 2 times [2024-11-28 04:53:15,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:15,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950159729] [2024-11-28 04:53:15,802 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:53:15,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:15,841 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:53:15,842 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:53:15,954 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:53:15,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:15,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950159729] [2024-11-28 04:53:15,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950159729] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:15,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313623680] [2024-11-28 04:53:15,955 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:53:15,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:15,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:15,958 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:15,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:53:16,080 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:53:16,080 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:53:16,083 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:53:16,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:16,195 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:53:16,195 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:16,378 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:53:16,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313623680] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:53:16,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:53:16,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-11-28 04:53:16,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866798085] [2024-11-28 04:53:16,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:16,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:53:16,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:16,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:53:16,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:53:16,410 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 65 [2024-11-28 04:53:16,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 89 transitions, 399 flow. Second operand has 6 states, 6 states have (on average 30.666666666666668) internal successors, (184), 6 states have internal predecessors, (184), 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) [2024-11-28 04:53:16,411 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:53:16,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 65 [2024-11-28 04:53:16,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:53:18,414 INFO L124 PetriNetUnfolderBase]: 9978/15173 cut-off events. [2024-11-28 04:53:18,414 INFO L125 PetriNetUnfolderBase]: For 13794/14040 co-relation queries the response was YES. [2024-11-28 04:53:18,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39845 conditions, 15173 events. 9978/15173 cut-off events. For 13794/14040 co-relation queries the response was YES. Maximal size of possible extension queue 365. Compared 93848 event pairs, 2171 based on Foata normal form. 140/13509 useless extension candidates. Maximal degree in co-relation 39752. Up to 6976 conditions per place. [2024-11-28 04:53:18,515 INFO L140 encePairwiseOnDemand]: 56/65 looper letters, 88 selfloop transitions, 16 changer transitions 0/129 dead transitions. [2024-11-28 04:53:18,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 129 transitions, 789 flow [2024-11-28 04:53:18,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:53:18,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:53:18,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 222 transitions. [2024-11-28 04:53:18,517 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5692307692307692 [2024-11-28 04:53:18,518 INFO L175 Difference]: Start difference. First operand has 100 places, 89 transitions, 399 flow. Second operand 6 states and 222 transitions. [2024-11-28 04:53:18,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 129 transitions, 789 flow [2024-11-28 04:53:18,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 129 transitions, 752 flow, removed 10 selfloop flow, removed 6 redundant places. [2024-11-28 04:53:18,613 INFO L231 Difference]: Finished difference. Result has 99 places, 89 transitions, 415 flow [2024-11-28 04:53:18,613 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=415, PETRI_PLACES=99, PETRI_TRANSITIONS=89} [2024-11-28 04:53:18,614 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 35 predicate places. [2024-11-28 04:53:18,614 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 89 transitions, 415 flow [2024-11-28 04:53:18,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.666666666666668) internal successors, (184), 6 states have internal predecessors, (184), 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) [2024-11-28 04:53:18,615 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:53:18,615 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:18,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 04:53:18,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 04:53:18,819 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 04:53:18,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:18,820 INFO L85 PathProgramCache]: Analyzing trace with hash 179428212, now seen corresponding path program 2 times [2024-11-28 04:53:18,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:18,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668259470] [2024-11-28 04:53:18,821 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:53:18,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:18,847 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:53:18,847 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:53:18,945 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:53:18,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:18,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668259470] [2024-11-28 04:53:18,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668259470] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:18,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559216666] [2024-11-28 04:53:18,945 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:53:18,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:18,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:18,950 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:18,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:53:19,064 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:53:19,064 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:53:19,067 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:53:19,069 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:19,173 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:53:19,173 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:19,293 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:53:19,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559216666] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:53:19,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:53:19,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-11-28 04:53:19,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253989455] [2024-11-28 04:53:19,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:19,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:53:19,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:19,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:53:19,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:53:19,317 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 65 [2024-11-28 04:53:19,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 89 transitions, 415 flow. Second operand has 6 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 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) [2024-11-28 04:53:19,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:53:19,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 65 [2024-11-28 04:53:19,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:53:21,348 INFO L124 PetriNetUnfolderBase]: 10022/15232 cut-off events. [2024-11-28 04:53:21,349 INFO L125 PetriNetUnfolderBase]: For 18233/18540 co-relation queries the response was YES. [2024-11-28 04:53:21,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41199 conditions, 15232 events. 10022/15232 cut-off events. For 18233/18540 co-relation queries the response was YES. Maximal size of possible extension queue 360. Compared 92384 event pairs, 2111 based on Foata normal form. 311/13845 useless extension candidates. Maximal degree in co-relation 41104. Up to 7072 conditions per place. [2024-11-28 04:53:21,398 INFO L140 encePairwiseOnDemand]: 56/65 looper letters, 0 selfloop transitions, 0 changer transitions 129/129 dead transitions. [2024-11-28 04:53:21,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 129 transitions, 823 flow [2024-11-28 04:53:21,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:53:21,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:53:21,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 220 transitions. [2024-11-28 04:53:21,399 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5641025641025641 [2024-11-28 04:53:21,399 INFO L175 Difference]: Start difference. First operand has 99 places, 89 transitions, 415 flow. Second operand 6 states and 220 transitions. [2024-11-28 04:53:21,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 129 transitions, 823 flow [2024-11-28 04:53:21,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 129 transitions, 778 flow, removed 1 selfloop flow, removed 8 redundant places. [2024-11-28 04:53:21,650 INFO L231 Difference]: Finished difference. Result has 95 places, 0 transitions, 0 flow [2024-11-28 04:53:21,650 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=95, PETRI_TRANSITIONS=0} [2024-11-28 04:53:21,651 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 31 predicate places. [2024-11-28 04:53:21,651 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 0 transitions, 0 flow [2024-11-28 04:53:21,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 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) [2024-11-28 04:53:21,654 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2024-11-28 04:53:21,654 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-28 04:53:21,655 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-28 04:53:21,655 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-28 04:53:21,655 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-28 04:53:21,655 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-28 04:53:21,655 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2024-11-28 04:53:21,655 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 13 remaining) [2024-11-28 04:53:21,655 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2024-11-28 04:53:21,656 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-28 04:53:21,656 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-28 04:53:21,656 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-28 04:53:21,656 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-28 04:53:21,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-28 04:53:21,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:21,857 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:21,865 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 04:53:21,865 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:53:21,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:53:21 BasicIcfg [2024-11-28 04:53:21,874 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:53:21,874 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:53:21,875 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:53:21,875 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:53:21,876 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:52:56" (3/4) ... [2024-11-28 04:53:21,878 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:53:21,886 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-28 04:53:21,886 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-28 04:53:21,886 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-28 04:53:21,897 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 105 nodes and edges [2024-11-28 04:53:21,897 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2024-11-28 04:53:21,898 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-28 04:53:21,898 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-28 04:53:21,994 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:53:21,994 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:53:21,995 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:53:21,996 INFO L158 Benchmark]: Toolchain (without parser) took 27533.74ms. Allocated memory was 109.1MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 83.5MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 406.1MB. Max. memory is 16.1GB. [2024-11-28 04:53:21,996 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 83.9MB. Free memory was 41.0MB in the beginning and 40.9MB in the end (delta: 100.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:53:21,997 INFO L158 Benchmark]: CACSL2BoogieTranslator took 453.80ms. Allocated memory is still 109.1MB. Free memory was 83.5MB in the beginning and 71.4MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:53:21,997 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.17ms. Allocated memory is still 109.1MB. Free memory was 71.4MB in the beginning and 69.6MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:53:21,997 INFO L158 Benchmark]: Boogie Preprocessor took 75.37ms. Allocated memory is still 109.1MB. Free memory was 69.6MB in the beginning and 67.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:53:21,998 INFO L158 Benchmark]: RCFGBuilder took 1096.44ms. Allocated memory is still 109.1MB. Free memory was 67.8MB in the beginning and 77.7MB in the end (delta: -10.0MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2024-11-28 04:53:21,998 INFO L158 Benchmark]: TraceAbstraction took 25697.40ms. Allocated memory was 109.1MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 77.2MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 804.4MB. Max. memory is 16.1GB. [2024-11-28 04:53:21,999 INFO L158 Benchmark]: Witness Printer took 120.22ms. Allocated memory is still 1.7GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:53:22,001 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56ms. Allocated memory is still 83.9MB. Free memory was 41.0MB in the beginning and 40.9MB in the end (delta: 100.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 453.80ms. Allocated memory is still 109.1MB. Free memory was 83.5MB in the beginning and 71.4MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.17ms. Allocated memory is still 109.1MB. Free memory was 71.4MB in the beginning and 69.6MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.37ms. Allocated memory is still 109.1MB. Free memory was 69.6MB in the beginning and 67.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1096.44ms. Allocated memory is still 109.1MB. Free memory was 67.8MB in the beginning and 77.7MB in the end (delta: -10.0MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. * TraceAbstraction took 25697.40ms. Allocated memory was 109.1MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 77.2MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 804.4MB. Max. memory is 16.1GB. * Witness Printer took 120.22ms. Allocated memory is still 1.7GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 111]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 111]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 96 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 25.5s, OverallIterations: 13, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 16.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1080 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1025 mSDsluCounter, 642 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 597 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4523 IncrementalHoareTripleChecker+Invalid, 4564 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 45 mSDtfsCounter, 4523 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 678 GetRequests, 540 SyntacticMatches, 11 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=415occurred in iteration=12, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 712 NumberOfCodeBlocks, 584 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 973 ConstructedInterpolants, 0 QuantifiedInterpolants, 2205 SizeOfPredicates, 32 NumberOfNonLiveVariables, 1179 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 30 InterpolantComputations, 5 PerfectInterpolantSequences, 354/527 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 04:53:22,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fe240d9-5104-45c2-807e-5639408b900c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE