./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 52746884466210ec366bc04a3a6cb03f413619353c73143d79c1024e676e598e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:58:58,932 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:58:59,050 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 17:58:59,060 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:58:59,061 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:58:59,102 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:58:59,103 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:58:59,104 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:58:59,105 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:58:59,107 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:58:59,107 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:58:59,108 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:58:59,109 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:58:59,109 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:58:59,109 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:58:59,112 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:58:59,114 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:58:59,114 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:58:59,115 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:58:59,119 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:58:59,119 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:58:59,120 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:58:59,120 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:58:59,120 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:58:59,121 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:58:59,121 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 17:58:59,121 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:58:59,122 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:58:59,122 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:58:59,122 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:58:59,123 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:58:59,125 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:58:59,126 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:58:59,126 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:58:59,127 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:58:59,127 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:58:59,127 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:58:59,128 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:58:59,129 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:58:59,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:58:59,130 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:58:59,131 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:58:59,131 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:58:59,131 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:58:59,132 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52746884466210ec366bc04a3a6cb03f413619353c73143d79c1024e676e598e [2024-11-08 17:58:59,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:58:59,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:58:59,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:58:59,500 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:58:59,501 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:58:59,502 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i Unable to find full path for "g++" [2024-11-08 17:59:02,023 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:59:02,345 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:59:02,346 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i [2024-11-08 17:59:02,374 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/data/c4ccfebc2/08126a5cd3c641a8899e712d277549bf/FLAG5f93a4b47 [2024-11-08 17:59:02,407 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/data/c4ccfebc2/08126a5cd3c641a8899e712d277549bf [2024-11-08 17:59:02,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:59:02,415 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:59:02,418 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:59:02,419 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:59:02,427 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:59:02,428 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:59:02" (1/1) ... [2024-11-08 17:59:02,433 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ea88090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:02, skipping insertion in model container [2024-11-08 17:59:02,433 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:59:02" (1/1) ... [2024-11-08 17:59:02,524 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:59:03,329 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 17:59:03,330 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 17:59:03,331 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 17:59:03,334 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 17:59:03,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:59:03,423 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:59:03,492 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 17:59:03,493 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 17:59:03,494 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 17:59:03,495 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 17:59:03,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:59:03,624 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:59:03,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:03 WrapperNode [2024-11-08 17:59:03,625 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:59:03,626 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:59:03,627 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:59:03,627 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:59:03,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:03" (1/1) ... [2024-11-08 17:59:03,657 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:03" (1/1) ... [2024-11-08 17:59:03,703 INFO L138 Inliner]: procedures = 273, calls = 95, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 187 [2024-11-08 17:59:03,704 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:59:03,705 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:59:03,705 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:59:03,706 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:59:03,719 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:03" (1/1) ... [2024-11-08 17:59:03,719 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:03" (1/1) ... [2024-11-08 17:59:03,729 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:03" (1/1) ... [2024-11-08 17:59:03,758 INFO L175 MemorySlicer]: Split 84 memory accesses to 1 slices as follows [84]. 100 percent of accesses are in the largest equivalence class. The 70 initializations are split as follows [70]. The 10 writes are split as follows [10]. [2024-11-08 17:59:03,758 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:03" (1/1) ... [2024-11-08 17:59:03,758 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:03" (1/1) ... [2024-11-08 17:59:03,784 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:03" (1/1) ... [2024-11-08 17:59:03,788 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:03" (1/1) ... [2024-11-08 17:59:03,791 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:03" (1/1) ... [2024-11-08 17:59:03,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:03" (1/1) ... [2024-11-08 17:59:03,797 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:59:03,805 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:59:03,805 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:59:03,806 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:59:03,807 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:03" (1/1) ... [2024-11-08 17:59:03,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:59:03,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:59:03,853 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:59:03,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:59:03,900 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-08 17:59:03,901 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-08 17:59:03,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 17:59:03,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-08 17:59:03,901 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 17:59:03,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 17:59:03,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 17:59:03,902 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 17:59:03,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 17:59:03,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:59:03,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 17:59:03,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:59:03,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:59:03,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:59:03,906 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 17:59:04,144 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:59:04,146 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:59:04,700 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 17:59:04,700 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:59:05,577 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:59:05,578 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 17:59:05,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:59:05 BoogieIcfgContainer [2024-11-08 17:59:05,579 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:59:05,582 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:59:05,583 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:59:05,587 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:59:05,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:59:02" (1/3) ... [2024-11-08 17:59:05,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50fb43b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:59:05, skipping insertion in model container [2024-11-08 17:59:05,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:03" (2/3) ... [2024-11-08 17:59:05,591 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50fb43b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:59:05, skipping insertion in model container [2024-11-08 17:59:05,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:59:05" (3/3) ... [2024-11-08 17:59:05,593 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_21-arrayloop2_nr.i [2024-11-08 17:59:05,617 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:59:05,618 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-08 17:59:05,618 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 17:59:05,735 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-08 17:59:05,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 73 transitions, 154 flow [2024-11-08 17:59:05,872 INFO L124 PetriNetUnfolderBase]: 12/71 cut-off events. [2024-11-08 17:59:05,872 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:59:05,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 71 events. 12/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 197 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2024-11-08 17:59:05,879 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 73 transitions, 154 flow [2024-11-08 17:59:05,886 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 71 transitions, 148 flow [2024-11-08 17:59:05,899 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:59:05,910 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;@299c20e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:59:05,911 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-08 17:59:05,927 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:59:05,927 INFO L124 PetriNetUnfolderBase]: 3/18 cut-off events. [2024-11-08 17:59:05,927 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:59:05,927 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:59:05,928 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 17:59:05,929 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-08 17:59:05,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:05,937 INFO L85 PathProgramCache]: Analyzing trace with hash 2126009825, now seen corresponding path program 1 times [2024-11-08 17:59:05,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:05,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364613606] [2024-11-08 17:59:05,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:05,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:06,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:06,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:06,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364613606] [2024-11-08 17:59:06,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364613606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:06,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:06,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:59:06,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583570762] [2024-11-08 17:59:06,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:06,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:59:06,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:06,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:59:06,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:59:06,487 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 73 [2024-11-08 17:59:06,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 71 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:06,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:59:06,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 73 [2024-11-08 17:59:06,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:59:06,995 INFO L124 PetriNetUnfolderBase]: 281/698 cut-off events. [2024-11-08 17:59:06,996 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-08 17:59:07,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1120 conditions, 698 events. 281/698 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4007 event pairs, 175 based on Foata normal form. 3/586 useless extension candidates. Maximal degree in co-relation 1068. Up to 399 conditions per place. [2024-11-08 17:59:07,011 INFO L140 encePairwiseOnDemand]: 67/73 looper letters, 33 selfloop transitions, 2 changer transitions 0/73 dead transitions. [2024-11-08 17:59:07,011 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 73 transitions, 222 flow [2024-11-08 17:59:07,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:59:07,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:59:07,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 159 transitions. [2024-11-08 17:59:07,027 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.726027397260274 [2024-11-08 17:59:07,030 INFO L175 Difference]: Start difference. First operand has 66 places, 71 transitions, 148 flow. Second operand 3 states and 159 transitions. [2024-11-08 17:59:07,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 73 transitions, 222 flow [2024-11-08 17:59:07,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 73 transitions, 220 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:59:07,041 INFO L231 Difference]: Finished difference. Result has 67 places, 72 transitions, 164 flow [2024-11-08 17:59:07,044 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=67, PETRI_TRANSITIONS=72} [2024-11-08 17:59:07,049 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 1 predicate places. [2024-11-08 17:59:07,049 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 72 transitions, 164 flow [2024-11-08 17:59:07,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:07,051 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:59:07,051 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:07,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:59:07,052 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-08 17:59:07,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:07,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1308119549, now seen corresponding path program 1 times [2024-11-08 17:59:07,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:07,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602733664] [2024-11-08 17:59:07,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:07,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:07,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:07,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:07,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602733664] [2024-11-08 17:59:07,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602733664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:07,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:07,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:59:07,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088394857] [2024-11-08 17:59:07,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:07,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:59:07,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:07,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:59:07,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:59:07,351 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 73 [2024-11-08 17:59:07,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 72 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:07,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:59:07,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 73 [2024-11-08 17:59:07,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:59:07,767 INFO L124 PetriNetUnfolderBase]: 277/680 cut-off events. [2024-11-08 17:59:07,768 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-08 17:59:07,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1112 conditions, 680 events. 277/680 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3890 event pairs, 175 based on Foata normal form. 2/570 useless extension candidates. Maximal degree in co-relation 1063. Up to 401 conditions per place. [2024-11-08 17:59:07,776 INFO L140 encePairwiseOnDemand]: 68/73 looper letters, 34 selfloop transitions, 3 changer transitions 0/73 dead transitions. [2024-11-08 17:59:07,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 73 transitions, 240 flow [2024-11-08 17:59:07,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:59:07,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:59:07,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 191 transitions. [2024-11-08 17:59:07,779 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6541095890410958 [2024-11-08 17:59:07,779 INFO L175 Difference]: Start difference. First operand has 67 places, 72 transitions, 164 flow. Second operand 4 states and 191 transitions. [2024-11-08 17:59:07,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 73 transitions, 240 flow [2024-11-08 17:59:07,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 73 transitions, 238 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:59:07,784 INFO L231 Difference]: Finished difference. Result has 71 places, 73 transitions, 180 flow [2024-11-08 17:59:07,785 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=180, PETRI_PLACES=71, PETRI_TRANSITIONS=73} [2024-11-08 17:59:07,786 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 5 predicate places. [2024-11-08 17:59:07,786 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 73 transitions, 180 flow [2024-11-08 17:59:07,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:07,787 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:59:07,787 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:07,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:59:07,788 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-08 17:59:07,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:07,790 INFO L85 PathProgramCache]: Analyzing trace with hash 632371394, now seen corresponding path program 1 times [2024-11-08 17:59:07,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:07,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264933545] [2024-11-08 17:59:07,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:07,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:07,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:07,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:07,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264933545] [2024-11-08 17:59:07,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264933545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:07,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:07,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:59:07,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939551188] [2024-11-08 17:59:07,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:07,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:59:07,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:07,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:59:07,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:59:07,929 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 73 [2024-11-08 17:59:07,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 73 transitions, 180 flow. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:07,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:59:07,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 73 [2024-11-08 17:59:07,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:59:08,271 INFO L124 PetriNetUnfolderBase]: 279/703 cut-off events. [2024-11-08 17:59:08,272 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-08 17:59:08,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1162 conditions, 703 events. 279/703 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3913 event pairs, 175 based on Foata normal form. 4/595 useless extension candidates. Maximal degree in co-relation 1091. Up to 401 conditions per place. [2024-11-08 17:59:08,281 INFO L140 encePairwiseOnDemand]: 67/73 looper letters, 40 selfloop transitions, 2 changer transitions 0/80 dead transitions. [2024-11-08 17:59:08,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 80 transitions, 296 flow [2024-11-08 17:59:08,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:59:08,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:59:08,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 162 transitions. [2024-11-08 17:59:08,288 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7397260273972602 [2024-11-08 17:59:08,288 INFO L175 Difference]: Start difference. First operand has 71 places, 73 transitions, 180 flow. Second operand 3 states and 162 transitions. [2024-11-08 17:59:08,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 80 transitions, 296 flow [2024-11-08 17:59:08,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 80 transitions, 288 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:59:08,292 INFO L231 Difference]: Finished difference. Result has 72 places, 74 transitions, 194 flow [2024-11-08 17:59:08,295 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=72, PETRI_TRANSITIONS=74} [2024-11-08 17:59:08,296 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 6 predicate places. [2024-11-08 17:59:08,296 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 74 transitions, 194 flow [2024-11-08 17:59:08,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:08,297 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:59:08,298 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:08,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:59:08,298 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-08 17:59:08,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:08,299 INFO L85 PathProgramCache]: Analyzing trace with hash -343415232, now seen corresponding path program 1 times [2024-11-08 17:59:08,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:08,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740437236] [2024-11-08 17:59:08,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:08,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:08,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:08,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:08,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:08,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740437236] [2024-11-08 17:59:08,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740437236] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:59:08,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693593315] [2024-11-08 17:59:08,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:08,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:59:08,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:59:08,576 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:59:08,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:59:08,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:08,822 INFO L255 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 17:59:08,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:59:08,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:08,915 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:59:08,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:08,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693593315] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:59:08,983 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:59:08,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-08 17:59:08,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683357752] [2024-11-08 17:59:08,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:59:08,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:59:08,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:08,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:59:08,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:59:09,092 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 73 [2024-11-08 17:59:09,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 74 transitions, 194 flow. Second operand has 10 states, 10 states have (on average 37.9) internal successors, (379), 10 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) [2024-11-08 17:59:09,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:59:09,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 73 [2024-11-08 17:59:09,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:59:09,881 INFO L124 PetriNetUnfolderBase]: 277/719 cut-off events. [2024-11-08 17:59:09,881 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-08 17:59:09,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1217 conditions, 719 events. 277/719 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4014 event pairs, 175 based on Foata normal form. 10/617 useless extension candidates. Maximal degree in co-relation 1142. Up to 398 conditions per place. [2024-11-08 17:59:09,888 INFO L140 encePairwiseOnDemand]: 65/73 looper letters, 40 selfloop transitions, 9 changer transitions 0/83 dead transitions. [2024-11-08 17:59:09,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 83 transitions, 322 flow [2024-11-08 17:59:09,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:59:09,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 17:59:09,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 377 transitions. [2024-11-08 17:59:09,891 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.573820395738204 [2024-11-08 17:59:09,892 INFO L175 Difference]: Start difference. First operand has 72 places, 74 transitions, 194 flow. Second operand 9 states and 377 transitions. [2024-11-08 17:59:09,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 83 transitions, 322 flow [2024-11-08 17:59:09,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 83 transitions, 320 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:59:09,896 INFO L231 Difference]: Finished difference. Result has 83 places, 77 transitions, 242 flow [2024-11-08 17:59:09,896 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=242, PETRI_PLACES=83, PETRI_TRANSITIONS=77} [2024-11-08 17:59:09,897 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 17 predicate places. [2024-11-08 17:59:09,897 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 77 transitions, 242 flow [2024-11-08 17:59:09,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 37.9) internal successors, (379), 10 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) [2024-11-08 17:59:09,898 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:59:09,898 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:09,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 17:59:10,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:59:10,103 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-08 17:59:10,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:10,104 INFO L85 PathProgramCache]: Analyzing trace with hash 691315362, now seen corresponding path program 1 times [2024-11-08 17:59:10,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:10,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476931177] [2024-11-08 17:59:10,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:10,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:10,466 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:10,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:10,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476931177] [2024-11-08 17:59:10,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476931177] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:59:10,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409003917] [2024-11-08 17:59:10,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:10,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:59:10,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:59:10,472 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:59:10,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:59:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:10,776 INFO L255 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 17:59:10,778 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:59:10,847 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:10,847 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:59:10,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409003917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:10,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:59:10,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-08 17:59:10,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307029175] [2024-11-08 17:59:10,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:10,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:59:10,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:10,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:59:10,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:59:10,910 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 73 [2024-11-08 17:59:10,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 77 transitions, 242 flow. Second operand has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:10,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:59:10,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 73 [2024-11-08 17:59:10,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:59:11,468 INFO L124 PetriNetUnfolderBase]: 277/715 cut-off events. [2024-11-08 17:59:11,469 INFO L125 PetriNetUnfolderBase]: For 100/100 co-relation queries the response was YES. [2024-11-08 17:59:11,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1231 conditions, 715 events. 277/715 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3991 event pairs, 175 based on Foata normal form. 4/607 useless extension candidates. Maximal degree in co-relation 1125. Up to 394 conditions per place. [2024-11-08 17:59:11,478 INFO L140 encePairwiseOnDemand]: 68/73 looper letters, 30 selfloop transitions, 8 changer transitions 0/75 dead transitions. [2024-11-08 17:59:11,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 75 transitions, 304 flow [2024-11-08 17:59:11,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:59:11,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:59:11,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 264 transitions. [2024-11-08 17:59:11,482 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6027397260273972 [2024-11-08 17:59:11,482 INFO L175 Difference]: Start difference. First operand has 83 places, 77 transitions, 242 flow. Second operand 6 states and 264 transitions. [2024-11-08 17:59:11,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 75 transitions, 304 flow [2024-11-08 17:59:11,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 75 transitions, 296 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-08 17:59:11,488 INFO L231 Difference]: Finished difference. Result has 83 places, 75 transitions, 236 flow [2024-11-08 17:59:11,489 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=236, PETRI_PLACES=83, PETRI_TRANSITIONS=75} [2024-11-08 17:59:11,490 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 17 predicate places. [2024-11-08 17:59:11,490 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 75 transitions, 236 flow [2024-11-08 17:59:11,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:11,491 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:59:11,491 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2024-11-08 17:59:11,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 17:59:11,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:59:11,693 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-08 17:59:11,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:11,693 INFO L85 PathProgramCache]: Analyzing trace with hash -2142036491, now seen corresponding path program 1 times [2024-11-08 17:59:11,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:11,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56590941] [2024-11-08 17:59:11,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:11,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:11,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:11,930 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 17:59:11,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:11,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56590941] [2024-11-08 17:59:11,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56590941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:11,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:11,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:59:11,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364080372] [2024-11-08 17:59:11,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:11,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:59:11,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:11,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:59:11,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:59:11,962 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 73 [2024-11-08 17:59:11,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 75 transitions, 236 flow. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:11,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:59:11,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 73 [2024-11-08 17:59:11,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:59:12,325 INFO L124 PetriNetUnfolderBase]: 277/713 cut-off events. [2024-11-08 17:59:12,326 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-11-08 17:59:12,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1242 conditions, 713 events. 277/713 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3973 event pairs, 175 based on Foata normal form. 2/603 useless extension candidates. Maximal degree in co-relation 1134. Up to 402 conditions per place. [2024-11-08 17:59:12,332 INFO L140 encePairwiseOnDemand]: 68/73 looper letters, 30 selfloop transitions, 9 changer transitions 0/75 dead transitions. [2024-11-08 17:59:12,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 75 transitions, 312 flow [2024-11-08 17:59:12,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:59:12,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:59:12,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 186 transitions. [2024-11-08 17:59:12,335 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.636986301369863 [2024-11-08 17:59:12,335 INFO L175 Difference]: Start difference. First operand has 83 places, 75 transitions, 236 flow. Second operand 4 states and 186 transitions. [2024-11-08 17:59:12,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 75 transitions, 312 flow [2024-11-08 17:59:12,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 75 transitions, 296 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-11-08 17:59:12,342 INFO L231 Difference]: Finished difference. Result has 80 places, 75 transitions, 244 flow [2024-11-08 17:59:12,346 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=244, PETRI_PLACES=80, PETRI_TRANSITIONS=75} [2024-11-08 17:59:12,347 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 14 predicate places. [2024-11-08 17:59:12,347 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 75 transitions, 244 flow [2024-11-08 17:59:12,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:12,347 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:59:12,348 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:12,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:59:12,348 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-08 17:59:12,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:12,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1215458622, now seen corresponding path program 2 times [2024-11-08 17:59:12,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:12,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678888090] [2024-11-08 17:59:12,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:12,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:12,610 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-08 17:59:12,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:12,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678888090] [2024-11-08 17:59:12,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678888090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:12,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:12,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:59:12,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112131800] [2024-11-08 17:59:12,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:12,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:59:12,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:12,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:59:12,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:59:12,631 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 73 [2024-11-08 17:59:12,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 75 transitions, 244 flow. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:12,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:59:12,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 73 [2024-11-08 17:59:12,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:59:13,080 INFO L124 PetriNetUnfolderBase]: 277/711 cut-off events. [2024-11-08 17:59:13,081 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2024-11-08 17:59:13,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1243 conditions, 711 events. 277/711 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3968 event pairs, 175 based on Foata normal form. 2/603 useless extension candidates. Maximal degree in co-relation 1114. Up to 407 conditions per place. [2024-11-08 17:59:13,088 INFO L140 encePairwiseOnDemand]: 68/73 looper letters, 45 selfloop transitions, 3 changer transitions 0/83 dead transitions. [2024-11-08 17:59:13,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 83 transitions, 406 flow [2024-11-08 17:59:13,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:59:13,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:59:13,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 194 transitions. [2024-11-08 17:59:13,090 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6643835616438356 [2024-11-08 17:59:13,091 INFO L175 Difference]: Start difference. First operand has 80 places, 75 transitions, 244 flow. Second operand 4 states and 194 transitions. [2024-11-08 17:59:13,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 83 transitions, 406 flow [2024-11-08 17:59:13,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 83 transitions, 382 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-08 17:59:13,097 INFO L231 Difference]: Finished difference. Result has 83 places, 76 transitions, 249 flow [2024-11-08 17:59:13,097 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=249, PETRI_PLACES=83, PETRI_TRANSITIONS=76} [2024-11-08 17:59:13,098 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 17 predicate places. [2024-11-08 17:59:13,098 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 76 transitions, 249 flow [2024-11-08 17:59:13,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:13,099 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:59:13,099 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:13,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:59:13,100 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-08 17:59:13,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:13,104 INFO L85 PathProgramCache]: Analyzing trace with hash 2018544063, now seen corresponding path program 1 times [2024-11-08 17:59:13,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:13,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222275237] [2024-11-08 17:59:13,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:13,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:13,704 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 31 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:59:13,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:13,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222275237] [2024-11-08 17:59:13,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222275237] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:59:13,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13915659] [2024-11-08 17:59:13,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:13,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:59:13,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:59:13,708 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:59:13,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 17:59:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:14,117 INFO L255 TraceCheckSpWp]: Trace formula consists of 637 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 17:59:14,122 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:59:14,215 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 31 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:59:14,219 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:59:14,379 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 31 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:59:14,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13915659] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:59:14,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:59:14,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-08 17:59:14,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452166639] [2024-11-08 17:59:14,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:59:14,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 17:59:14,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:14,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 17:59:14,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-08 17:59:14,541 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 73 [2024-11-08 17:59:14,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 76 transitions, 249 flow. Second operand has 18 states, 18 states have (on average 38.333333333333336) internal successors, (690), 18 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:14,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:59:14,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 73 [2024-11-08 17:59:14,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:59:16,160 INFO L124 PetriNetUnfolderBase]: 277/767 cut-off events. [2024-11-08 17:59:16,160 INFO L125 PetriNetUnfolderBase]: For 224/224 co-relation queries the response was YES. [2024-11-08 17:59:16,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1434 conditions, 767 events. 277/767 cut-off events. For 224/224 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3996 event pairs, 175 based on Foata normal form. 8/665 useless extension candidates. Maximal degree in co-relation 1265. Up to 398 conditions per place. [2024-11-08 17:59:16,167 INFO L140 encePairwiseOnDemand]: 68/73 looper letters, 56 selfloop transitions, 15 changer transitions 0/105 dead transitions. [2024-11-08 17:59:16,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 105 transitions, 565 flow [2024-11-08 17:59:16,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:59:16,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 17:59:16,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 613 transitions. [2024-11-08 17:59:16,171 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5598173515981735 [2024-11-08 17:59:16,171 INFO L175 Difference]: Start difference. First operand has 83 places, 76 transitions, 249 flow. Second operand 15 states and 613 transitions. [2024-11-08 17:59:16,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 105 transitions, 565 flow [2024-11-08 17:59:16,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 105 transitions, 561 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:59:16,234 INFO L231 Difference]: Finished difference. Result has 100 places, 85 transitions, 371 flow [2024-11-08 17:59:16,237 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=371, PETRI_PLACES=100, PETRI_TRANSITIONS=85} [2024-11-08 17:59:16,239 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 34 predicate places. [2024-11-08 17:59:16,239 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 85 transitions, 371 flow [2024-11-08 17:59:16,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 38.333333333333336) internal successors, (690), 18 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:16,241 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:59:16,241 INFO L204 CegarLoopForPetriNet]: trace histogram [9, 9, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:16,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 17:59:16,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:59:16,446 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-08 17:59:16,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:16,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1332160837, now seen corresponding path program 2 times [2024-11-08 17:59:16,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:16,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550573356] [2024-11-08 17:59:16,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:16,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:16,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:17,815 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 67 proven. 133 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:59:17,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:17,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550573356] [2024-11-08 17:59:17,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550573356] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:59:17,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381068139] [2024-11-08 17:59:17,817 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 17:59:17,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:59:17,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:59:17,819 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:59:17,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 17:59:18,464 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 17:59:18,465 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:59:18,473 INFO L255 TraceCheckSpWp]: Trace formula consists of 1013 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 17:59:18,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:59:18,635 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 67 proven. 133 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:59:18,635 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:59:19,160 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 67 proven. 133 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:59:19,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381068139] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:59:19,161 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:59:19,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-11-08 17:59:19,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518728758] [2024-11-08 17:59:19,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:59:19,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-08 17:59:19,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:19,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-08 17:59:19,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 17:59:19,376 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 73 [2024-11-08 17:59:19,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 85 transitions, 371 flow. Second operand has 34 states, 34 states have (on average 38.1764705882353) internal successors, (1298), 34 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:19,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:59:19,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 73 [2024-11-08 17:59:19,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:59:21,803 INFO L124 PetriNetUnfolderBase]: 277/879 cut-off events. [2024-11-08 17:59:21,803 INFO L125 PetriNetUnfolderBase]: For 1032/1032 co-relation queries the response was YES. [2024-11-08 17:59:21,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1944 conditions, 879 events. 277/879 cut-off events. For 1032/1032 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4026 event pairs, 175 based on Foata normal form. 16/785 useless extension candidates. Maximal degree in co-relation 1547. Up to 398 conditions per place. [2024-11-08 17:59:21,812 INFO L140 encePairwiseOnDemand]: 68/73 looper letters, 88 selfloop transitions, 31 changer transitions 0/153 dead transitions. [2024-11-08 17:59:21,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 153 transitions, 1101 flow [2024-11-08 17:59:21,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-08 17:59:21,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-11-08 17:59:21,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1241 transitions. [2024-11-08 17:59:21,819 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5483870967741935 [2024-11-08 17:59:21,819 INFO L175 Difference]: Start difference. First operand has 100 places, 85 transitions, 371 flow. Second operand 31 states and 1241 transitions. [2024-11-08 17:59:21,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 153 transitions, 1101 flow [2024-11-08 17:59:21,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 153 transitions, 1067 flow, removed 13 selfloop flow, removed 4 redundant places. [2024-11-08 17:59:21,830 INFO L231 Difference]: Finished difference. Result has 135 places, 102 transitions, 627 flow [2024-11-08 17:59:21,831 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=627, PETRI_PLACES=135, PETRI_TRANSITIONS=102} [2024-11-08 17:59:21,832 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 69 predicate places. [2024-11-08 17:59:21,833 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 102 transitions, 627 flow [2024-11-08 17:59:21,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 38.1764705882353) internal successors, (1298), 34 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:21,835 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:59:21,835 INFO L204 CegarLoopForPetriNet]: trace histogram [17, 17, 16, 16, 16, 16, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:21,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 17:59:22,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:59:22,039 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-08 17:59:22,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:22,040 INFO L85 PathProgramCache]: Analyzing trace with hash -188951373, now seen corresponding path program 3 times [2024-11-08 17:59:22,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:22,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877617857] [2024-11-08 17:59:22,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:22,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:25,528 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 139 proven. 645 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:59:25,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:25,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877617857] [2024-11-08 17:59:25,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877617857] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:59:25,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690056640] [2024-11-08 17:59:25,530 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 17:59:25,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:59:25,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:59:25,533 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:59:25,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 17:59:26,309 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-08 17:59:26,309 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:59:26,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 17:59:26,323 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:59:26,827 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2024-11-08 17:59:26,827 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:59:26,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690056640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:26,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:59:26,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [33] total 40 [2024-11-08 17:59:26,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124228338] [2024-11-08 17:59:26,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:26,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:59:26,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:26,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:59:26,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=1246, Unknown=0, NotChecked=0, Total=1560 [2024-11-08 17:59:27,027 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 73 [2024-11-08 17:59:27,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 102 transitions, 627 flow. Second operand has 9 states, 9 states have (on average 33.888888888888886) internal successors, (305), 9 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:27,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:59:27,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 73 [2024-11-08 17:59:27,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:59:28,079 INFO L124 PetriNetUnfolderBase]: 277/864 cut-off events. [2024-11-08 17:59:28,080 INFO L125 PetriNetUnfolderBase]: For 1322/1322 co-relation queries the response was YES. [2024-11-08 17:59:28,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1980 conditions, 864 events. 277/864 cut-off events. For 1322/1322 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3934 event pairs, 175 based on Foata normal form. 15/769 useless extension candidates. Maximal degree in co-relation 1534. Up to 389 conditions per place. [2024-11-08 17:59:28,089 INFO L140 encePairwiseOnDemand]: 63/73 looper letters, 68 selfloop transitions, 41 changer transitions 0/139 dead transitions. [2024-11-08 17:59:28,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 139 transitions, 1300 flow [2024-11-08 17:59:28,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 17:59:28,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-08 17:59:28,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 402 transitions. [2024-11-08 17:59:28,092 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5006226650062267 [2024-11-08 17:59:28,093 INFO L175 Difference]: Start difference. First operand has 135 places, 102 transitions, 627 flow. Second operand 11 states and 402 transitions. [2024-11-08 17:59:28,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 139 transitions, 1300 flow [2024-11-08 17:59:28,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 139 transitions, 1248 flow, removed 2 selfloop flow, removed 12 redundant places. [2024-11-08 17:59:28,106 INFO L231 Difference]: Finished difference. Result has 137 places, 135 transitions, 1216 flow [2024-11-08 17:59:28,107 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=591, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1216, PETRI_PLACES=137, PETRI_TRANSITIONS=135} [2024-11-08 17:59:28,107 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 71 predicate places. [2024-11-08 17:59:28,108 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 135 transitions, 1216 flow [2024-11-08 17:59:28,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 33.888888888888886) internal successors, (305), 9 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:28,108 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:59:28,108 INFO L204 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:28,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-08 17:59:28,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 17:59:28,309 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-08 17:59:28,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:28,310 INFO L85 PathProgramCache]: Analyzing trace with hash 786834362, now seen corresponding path program 1 times [2024-11-08 17:59:28,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:28,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547538056] [2024-11-08 17:59:28,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:28,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:29,265 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2024-11-08 17:59:29,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:29,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547538056] [2024-11-08 17:59:29,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547538056] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:59:29,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151239830] [2024-11-08 17:59:29,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:29,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:59:29,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:59:29,269 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:59:29,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 17:59:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:30,303 INFO L255 TraceCheckSpWp]: Trace formula consists of 1687 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-08 17:59:30,311 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:59:31,130 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 1 proven. 645 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:31,130 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:59:32,574 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 1 proven. 645 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:32,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151239830] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:59:32,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:59:32,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 33, 33] total 64 [2024-11-08 17:59:32,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852706837] [2024-11-08 17:59:32,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:59:32,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-11-08 17:59:32,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:32,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-11-08 17:59:32,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=967, Invalid=3065, Unknown=0, NotChecked=0, Total=4032 [2024-11-08 17:59:33,146 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 73 [2024-11-08 17:59:33,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 135 transitions, 1216 flow. Second operand has 64 states, 64 states have (on average 34.1875) internal successors, (2188), 64 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:33,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:59:33,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 73 [2024-11-08 17:59:33,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:59:44,342 INFO L124 PetriNetUnfolderBase]: 293/1276 cut-off events. [2024-11-08 17:59:44,342 INFO L125 PetriNetUnfolderBase]: For 8803/8803 co-relation queries the response was YES. [2024-11-08 17:59:44,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4267 conditions, 1276 events. 293/1276 cut-off events. For 8803/8803 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4051 event pairs, 175 based on Foata normal form. 47/1213 useless extension candidates. Maximal degree in co-relation 3310. Up to 397 conditions per place. [2024-11-08 17:59:44,355 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 245 selfloop transitions, 216 changer transitions 0/491 dead transitions. [2024-11-08 17:59:44,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 491 transitions, 6140 flow [2024-11-08 17:59:44,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2024-11-08 17:59:44,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2024-11-08 17:59:44,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 6332 transitions. [2024-11-08 17:59:44,379 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4765919012494355 [2024-11-08 17:59:44,380 INFO L175 Difference]: Start difference. First operand has 137 places, 135 transitions, 1216 flow. Second operand 182 states and 6332 transitions. [2024-11-08 17:59:44,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 491 transitions, 6140 flow [2024-11-08 17:59:44,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 491 transitions, 6124 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-08 17:59:44,424 INFO L231 Difference]: Finished difference. Result has 376 places, 289 transitions, 4151 flow [2024-11-08 17:59:44,425 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=1204, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=182, PETRI_FLOW=4151, PETRI_PLACES=376, PETRI_TRANSITIONS=289} [2024-11-08 17:59:44,426 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 310 predicate places. [2024-11-08 17:59:44,426 INFO L471 AbstractCegarLoop]: Abstraction has has 376 places, 289 transitions, 4151 flow [2024-11-08 17:59:44,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 34.1875) internal successors, (2188), 64 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:44,428 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:59:44,428 INFO L204 CegarLoopForPetriNet]: trace histogram [32, 32, 32, 31, 31, 31, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:44,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-08 17:59:44,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-08 17:59:44,633 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-08 17:59:44,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:44,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1197682152, now seen corresponding path program 1 times [2024-11-08 17:59:44,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:44,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411380989] [2024-11-08 17:59:44,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:44,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:01:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 18:01:14,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [461218350] [2024-11-08 18:01:14,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:01:14,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:01:14,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:01:14,066 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:01:14,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 18:01:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:17,353 INFO L255 TraceCheckSpWp]: Trace formula consists of 3176 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 18:01:17,359 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:01:17,740 INFO L134 CoverageAnalysis]: Checked inductivity of 2948 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 2640 trivial. 0 not checked. [2024-11-08 18:01:17,740 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:01:18,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2948 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 2640 trivial. 0 not checked. [2024-11-08 18:01:18,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:01:18,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411380989] [2024-11-08 18:01:18,308 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 18:01:18,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461218350] [2024-11-08 18:01:18,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461218350] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:01:18,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:01:18,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2024-11-08 18:01:18,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929362335] [2024-11-08 18:01:18,310 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:01:18,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 18:01:18,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:01:18,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 18:01:18,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:01:18,466 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 73 [2024-11-08 18:01:18,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 289 transitions, 4151 flow. Second operand has 14 states, 14 states have (on average 33.714285714285715) internal successors, (472), 14 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:01:18,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:01:18,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 73 [2024-11-08 18:01:18,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:01:21,650 INFO L124 PetriNetUnfolderBase]: 278/1245 cut-off events. [2024-11-08 18:01:21,650 INFO L125 PetriNetUnfolderBase]: For 26853/26853 co-relation queries the response was YES. [2024-11-08 18:01:21,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5482 conditions, 1245 events. 278/1245 cut-off events. For 26853/26853 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3950 event pairs, 175 based on Foata normal form. 32/1167 useless extension candidates. Maximal degree in co-relation 4336. Up to 390 conditions per place. [2024-11-08 18:01:21,668 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 114 selfloop transitions, 136 changer transitions 0/279 dead transitions. [2024-11-08 18:01:21,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 279 transitions, 4750 flow [2024-11-08 18:01:21,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-08 18:01:21,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-08 18:01:21,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 664 transitions. [2024-11-08 18:01:21,672 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4787310742609949 [2024-11-08 18:01:21,672 INFO L175 Difference]: Start difference. First operand has 376 places, 289 transitions, 4151 flow. Second operand 19 states and 664 transitions. [2024-11-08 18:01:21,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 279 transitions, 4750 flow [2024-11-08 18:01:22,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 279 transitions, 4237 flow, removed 65 selfloop flow, removed 38 redundant places. [2024-11-08 18:01:22,082 INFO L231 Difference]: Finished difference. Result has 358 places, 266 transitions, 3834 flow [2024-11-08 18:01:22,083 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=3380, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3834, PETRI_PLACES=358, PETRI_TRANSITIONS=266} [2024-11-08 18:01:22,084 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 292 predicate places. [2024-11-08 18:01:22,084 INFO L471 AbstractCegarLoop]: Abstraction has has 358 places, 266 transitions, 3834 flow [2024-11-08 18:01:22,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 33.714285714285715) internal successors, (472), 14 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:01:22,085 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:01:22,085 INFO L204 CegarLoopForPetriNet]: trace histogram [60, 60, 60, 60, 60, 60, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:01:22,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 18:01:22,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-08 18:01:22,286 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-08 18:01:22,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:01:22,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1450878828, now seen corresponding path program 2 times [2024-11-08 18:01:22,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:01:22,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893583430] [2024-11-08 18:01:22,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:01:22,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:01:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:25,960 INFO L134 CoverageAnalysis]: Checked inductivity of 10748 backedges. 0 proven. 5468 refuted. 0 times theorem prover too weak. 5280 trivial. 0 not checked. [2024-11-08 18:01:25,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:01:25,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893583430] [2024-11-08 18:01:25,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893583430] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:01:25,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419053755] [2024-11-08 18:01:25,961 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:01:25,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:01:25,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:01:25,964 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:01:25,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 18:01:29,091 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 18:01:29,091 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:01:29,125 INFO L255 TraceCheckSpWp]: Trace formula consists of 5952 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:01:29,133 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:01:29,690 INFO L134 CoverageAnalysis]: Checked inductivity of 10748 backedges. 0 proven. 5468 refuted. 0 times theorem prover too weak. 5280 trivial. 0 not checked. [2024-11-08 18:01:29,690 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:01:30,355 INFO L134 CoverageAnalysis]: Checked inductivity of 10748 backedges. 0 proven. 5468 refuted. 0 times theorem prover too weak. 5280 trivial. 0 not checked. [2024-11-08 18:01:30,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419053755] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:01:30,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:01:30,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-08 18:01:30,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286011699] [2024-11-08 18:01:30,357 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:01:30,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 18:01:30,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:01:30,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 18:01:30,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:01:30,425 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 73 [2024-11-08 18:01:30,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 266 transitions, 3834 flow. Second operand has 14 states, 14 states have (on average 39.92857142857143) internal successors, (559), 14 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:01:30,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:01:30,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 73 [2024-11-08 18:01:30,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:01:32,693 INFO L124 PetriNetUnfolderBase]: 279/1674 cut-off events. [2024-11-08 18:01:32,693 INFO L125 PetriNetUnfolderBase]: For 65841/65841 co-relation queries the response was YES. [2024-11-08 18:01:32,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9452 conditions, 1674 events. 279/1674 cut-off events. For 65841/65841 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3815 event pairs, 175 based on Foata normal form. 6/1570 useless extension candidates. Maximal degree in co-relation 8460. Up to 391 conditions per place. [2024-11-08 18:01:32,716 INFO L140 encePairwiseOnDemand]: 67/73 looper letters, 338 selfloop transitions, 11 changer transitions 0/396 dead transitions. [2024-11-08 18:01:32,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 396 transitions, 7036 flow [2024-11-08 18:01:32,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:01:32,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-08 18:01:32,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 472 transitions. [2024-11-08 18:01:32,719 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5877957658779577 [2024-11-08 18:01:32,719 INFO L175 Difference]: Start difference. First operand has 358 places, 266 transitions, 3834 flow. Second operand 11 states and 472 transitions. [2024-11-08 18:01:32,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 396 transitions, 7036 flow [2024-11-08 18:01:33,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 396 transitions, 6994 flow, removed 4 selfloop flow, removed 10 redundant places. [2024-11-08 18:01:33,226 INFO L231 Difference]: Finished difference. Result has 362 places, 269 transitions, 3870 flow [2024-11-08 18:01:33,227 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=3797, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3870, PETRI_PLACES=362, PETRI_TRANSITIONS=269} [2024-11-08 18:01:33,227 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 296 predicate places. [2024-11-08 18:01:33,228 INFO L471 AbstractCegarLoop]: Abstraction has has 362 places, 269 transitions, 3870 flow [2024-11-08 18:01:33,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 39.92857142857143) internal successors, (559), 14 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:01:33,228 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:01:33,229 INFO L204 CegarLoopForPetriNet]: trace histogram [63, 63, 63, 62, 62, 62, 3, 3, 2, 2, 2, 2, 1, 1] [2024-11-08 18:01:33,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-08 18:01:33,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0a3c25d-8b3f-47f4-b3d5-99f1f8e7fb8f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-08 18:01:33,430 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-08 18:01:33,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:01:33,430 INFO L85 PathProgramCache]: Analyzing trace with hash -664455632, now seen corresponding path program 2 times [2024-11-08 18:01:33,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:01:33,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445438841] [2024-11-08 18:01:33,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:01:33,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms