./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c9008ebcceff34245d74f1892a84a552f8268a9318e8a2970f14b3ec6b594daf --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:10:15,856 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:10:15,959 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 20:10:15,969 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:10:15,970 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:10:16,012 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:10:16,012 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:10:16,013 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:10:16,014 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:10:16,014 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:10:16,015 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:10:16,016 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:10:16,016 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:10:16,016 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:10:16,017 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:10:16,017 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:10:16,017 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:10:16,017 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:10:16,017 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:10:16,018 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:10:16,018 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:10:16,018 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:10:16,018 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:10:16,018 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:10:16,018 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 20:10:16,018 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:10:16,018 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:10:16,018 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:10:16,018 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:10:16,019 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:10:16,019 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:10:16,019 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:10:16,019 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:10:16,019 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:10:16,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:10:16,020 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:10:16,020 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:10:16,020 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:10:16,020 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:10:16,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:10:16,020 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:10:16,020 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:10:16,021 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:10:16,021 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:10:16,021 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:10:16,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:10:16,021 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:10:16,021 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:10:16,021 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:10:16,021 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:10:16,021 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9008ebcceff34245d74f1892a84a552f8268a9318e8a2970f14b3ec6b594daf [2024-11-27 20:10:16,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:10:16,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:10:16,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:10:16,381 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:10:16,382 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:10:16,383 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2024-11-27 20:10:19,691 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/data/dc651f0c6/9a67bcf619c1456bb15e6fb4454b939a/FLAGb704fa7e0 [2024-11-27 20:10:20,060 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:10:20,062 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2024-11-27 20:10:20,077 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/data/dc651f0c6/9a67bcf619c1456bb15e6fb4454b939a/FLAGb704fa7e0 [2024-11-27 20:10:20,111 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/data/dc651f0c6/9a67bcf619c1456bb15e6fb4454b939a [2024-11-27 20:10:20,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:10:20,118 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:10:20,121 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:10:20,122 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:10:20,131 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:10:20,132 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:10:20" (1/1) ... [2024-11-27 20:10:20,133 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bdb0e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:20, skipping insertion in model container [2024-11-27 20:10:20,134 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:10:20" (1/1) ... [2024-11-27 20:10:20,165 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:10:20,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:10:20,456 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:10:20,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:10:20,561 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:10:20,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:20 WrapperNode [2024-11-27 20:10:20,562 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:10:20,564 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:10:20,564 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:10:20,564 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:10:20,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:20" (1/1) ... [2024-11-27 20:10:20,585 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:20" (1/1) ... [2024-11-27 20:10:20,642 INFO L138 Inliner]: procedures = 26, calls = 52, calls flagged for inlining = 23, calls inlined = 35, statements flattened = 486 [2024-11-27 20:10:20,642 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:10:20,643 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:10:20,643 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:10:20,643 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:10:20,654 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:20" (1/1) ... [2024-11-27 20:10:20,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:20" (1/1) ... [2024-11-27 20:10:20,664 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:20" (1/1) ... [2024-11-27 20:10:20,714 INFO L175 MemorySlicer]: Split 26 memory accesses to 3 slices as follows [2, 9, 15]. 58 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 6 writes are split as follows [0, 3, 3]. [2024-11-27 20:10:20,714 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:20" (1/1) ... [2024-11-27 20:10:20,714 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:20" (1/1) ... [2024-11-27 20:10:20,744 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:20" (1/1) ... [2024-11-27 20:10:20,745 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:20" (1/1) ... [2024-11-27 20:10:20,759 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:20" (1/1) ... [2024-11-27 20:10:20,762 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:20" (1/1) ... [2024-11-27 20:10:20,768 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:20" (1/1) ... [2024-11-27 20:10:20,774 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:10:20,775 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:10:20,775 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:10:20,775 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:10:20,780 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:20" (1/1) ... [2024-11-27 20:10:20,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:10:20,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:20,824 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:10:20,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:10:20,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:10:20,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 20:10:20,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 20:10:20,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-27 20:10:20,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 20:10:20,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 20:10:20,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-27 20:10:20,866 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-27 20:10:20,866 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-27 20:10:20,867 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-27 20:10:20,868 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-27 20:10:20,868 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-27 20:10:20,868 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-27 20:10:20,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:10:20,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 20:10:20,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-27 20:10:20,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 20:10:20,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:10:20,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:10:20,872 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 20:10:21,081 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:10:21,088 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:10:22,248 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 20:10:22,252 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:10:22,994 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:10:22,994 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-27 20:10:22,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:10:22 BoogieIcfgContainer [2024-11-27 20:10:22,995 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:10:23,000 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:10:23,000 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:10:23,006 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:10:23,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:10:20" (1/3) ... [2024-11-27 20:10:23,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a1bba82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:10:23, skipping insertion in model container [2024-11-27 20:10:23,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:20" (2/3) ... [2024-11-27 20:10:23,009 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a1bba82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:10:23, skipping insertion in model container [2024-11-27 20:10:23,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:10:22" (3/3) ... [2024-11-27 20:10:23,010 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-node-trans.wvr.c [2024-11-27 20:10:23,031 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:10:23,033 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-node-trans.wvr.c that has 4 procedures, 126 locations, 1 initial locations, 6 loop locations, and 42 error locations. [2024-11-27 20:10:23,034 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 20:10:23,203 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-27 20:10:23,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 135 places, 140 transitions, 301 flow [2024-11-27 20:10:23,346 INFO L124 PetriNetUnfolderBase]: 15/137 cut-off events. [2024-11-27 20:10:23,352 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-27 20:10:23,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 137 events. 15/137 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 400 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2024-11-27 20:10:23,360 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 140 transitions, 301 flow [2024-11-27 20:10:23,370 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 135 transitions, 285 flow [2024-11-27 20:10:23,380 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:10:23,395 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;@719931fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:10:23,396 INFO L334 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2024-11-27 20:10:23,401 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 20:10:23,402 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-11-27 20:10:23,402 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:10:23,402 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:10:23,403 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-27 20:10:23,403 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-27 20:10:23,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:23,410 INFO L85 PathProgramCache]: Analyzing trace with hash 46758, now seen corresponding path program 1 times [2024-11-27 20:10:23,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:23,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430912402] [2024-11-27 20:10:23,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:23,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:23,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:23,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:23,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430912402] [2024-11-27 20:10:23,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430912402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:23,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:23,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-27 20:10:23,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026793147] [2024-11-27 20:10:23,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:23,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:10:23,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:23,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:10:23,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:10:23,797 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-27 20:10:23,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 135 transitions, 285 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2024-11-27 20:10:23,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:10:23,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-27 20:10:23,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:10:25,867 INFO L124 PetriNetUnfolderBase]: 4133/8026 cut-off events. [2024-11-27 20:10:25,867 INFO L125 PetriNetUnfolderBase]: For 253/253 co-relation queries the response was YES. [2024-11-27 20:10:25,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13743 conditions, 8026 events. 4133/8026 cut-off events. For 253/253 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 65993 event pairs, 2732 based on Foata normal form. 2/6384 useless extension candidates. Maximal degree in co-relation 13014. Up to 5498 conditions per place. [2024-11-27 20:10:25,970 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 61 selfloop transitions, 1 changer transitions 0/133 dead transitions. [2024-11-27 20:10:25,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 133 transitions, 405 flow [2024-11-27 20:10:25,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:10:25,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:10:25,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2024-11-27 20:10:25,989 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2024-11-27 20:10:25,991 INFO L175 Difference]: Start difference. First operand has 130 places, 135 transitions, 285 flow. Second operand 3 states and 286 transitions. [2024-11-27 20:10:25,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 133 transitions, 405 flow [2024-11-27 20:10:26,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 133 transitions, 396 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-27 20:10:26,005 INFO L231 Difference]: Finished difference. Result has 125 places, 133 transitions, 274 flow [2024-11-27 20:10:26,008 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=125, PETRI_TRANSITIONS=133} [2024-11-27 20:10:26,012 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -5 predicate places. [2024-11-27 20:10:26,013 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 133 transitions, 274 flow [2024-11-27 20:10:26,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2024-11-27 20:10:26,013 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:10:26,013 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-27 20:10:26,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:10:26,014 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-27 20:10:26,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:26,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1451044, now seen corresponding path program 1 times [2024-11-27 20:10:26,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:26,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507318947] [2024-11-27 20:10:26,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:26,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:26,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:26,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:26,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507318947] [2024-11-27 20:10:26,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507318947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:26,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:26,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-27 20:10:26,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402312860] [2024-11-27 20:10:26,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:26,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:10:26,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:26,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:10:26,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:10:26,152 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-27 20:10:26,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 133 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2024-11-27 20:10:26,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:10:26,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-27 20:10:26,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:10:27,569 INFO L124 PetriNetUnfolderBase]: 4133/8024 cut-off events. [2024-11-27 20:10:27,569 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2024-11-27 20:10:27,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13658 conditions, 8024 events. 4133/8024 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 65891 event pairs, 2732 based on Foata normal form. 0/6382 useless extension candidates. Maximal degree in co-relation 13652. Up to 5496 conditions per place. [2024-11-27 20:10:27,648 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 59 selfloop transitions, 1 changer transitions 0/131 dead transitions. [2024-11-27 20:10:27,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 131 transitions, 390 flow [2024-11-27 20:10:27,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:10:27,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:10:27,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-11-27 20:10:27,651 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2024-11-27 20:10:27,651 INFO L175 Difference]: Start difference. First operand has 125 places, 133 transitions, 274 flow. Second operand 3 states and 284 transitions. [2024-11-27 20:10:27,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 131 transitions, 390 flow [2024-11-27 20:10:27,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 131 transitions, 389 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 20:10:27,656 INFO L231 Difference]: Finished difference. Result has 124 places, 131 transitions, 271 flow [2024-11-27 20:10:27,657 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=271, PETRI_PLACES=124, PETRI_TRANSITIONS=131} [2024-11-27 20:10:27,658 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -6 predicate places. [2024-11-27 20:10:27,658 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 131 transitions, 271 flow [2024-11-27 20:10:27,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2024-11-27 20:10:27,659 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:10:27,659 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-27 20:10:27,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:10:27,659 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-27 20:10:27,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:27,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1394501061, now seen corresponding path program 1 times [2024-11-27 20:10:27,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:27,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398985586] [2024-11-27 20:10:27,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:27,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:27,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:27,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:27,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398985586] [2024-11-27 20:10:27,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398985586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:27,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:27,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:10:27,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964720400] [2024-11-27 20:10:27,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:27,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:10:27,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:27,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:10:27,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:10:28,001 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-27 20:10:28,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 131 transitions, 271 flow. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2024-11-27 20:10:28,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:10:28,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-27 20:10:28,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:10:29,441 INFO L124 PetriNetUnfolderBase]: 4136/8036 cut-off events. [2024-11-27 20:10:29,441 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2024-11-27 20:10:29,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13686 conditions, 8036 events. 4136/8036 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 540. Compared 65944 event pairs, 2732 based on Foata normal form. 3/6394 useless extension candidates. Maximal degree in co-relation 13679. Up to 5506 conditions per place. [2024-11-27 20:10:29,489 INFO L140 encePairwiseOnDemand]: 122/140 looper letters, 63 selfloop transitions, 12 changer transitions 0/140 dead transitions. [2024-11-27 20:10:29,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 140 transitions, 439 flow [2024-11-27 20:10:29,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:10:29,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 20:10:29,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2024-11-27 20:10:29,491 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6589285714285714 [2024-11-27 20:10:29,491 INFO L175 Difference]: Start difference. First operand has 124 places, 131 transitions, 271 flow. Second operand 4 states and 369 transitions. [2024-11-27 20:10:29,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 140 transitions, 439 flow [2024-11-27 20:10:29,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 140 transitions, 438 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 20:10:29,497 INFO L231 Difference]: Finished difference. Result has 128 places, 140 transitions, 357 flow [2024-11-27 20:10:29,500 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=357, PETRI_PLACES=128, PETRI_TRANSITIONS=140} [2024-11-27 20:10:29,500 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -2 predicate places. [2024-11-27 20:10:29,501 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 140 transitions, 357 flow [2024-11-27 20:10:29,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2024-11-27 20:10:29,501 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:10:29,501 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-27 20:10:29,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:10:29,501 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-27 20:10:29,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:29,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1394501131, now seen corresponding path program 1 times [2024-11-27 20:10:29,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:29,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990696018] [2024-11-27 20:10:29,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:29,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:29,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:29,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:29,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:29,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990696018] [2024-11-27 20:10:29,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990696018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:29,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:29,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-27 20:10:29,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637725341] [2024-11-27 20:10:29,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:29,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:10:29,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:29,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:10:29,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:10:29,592 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-27 20:10:29,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 140 transitions, 357 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2024-11-27 20:10:29,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:10:29,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-27 20:10:29,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:10:30,663 INFO L124 PetriNetUnfolderBase]: 4136/8034 cut-off events. [2024-11-27 20:10:30,664 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-11-27 20:10:30,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13718 conditions, 8034 events. 4136/8034 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 540. Compared 65887 event pairs, 2732 based on Foata normal form. 2/6398 useless extension candidates. Maximal degree in co-relation 13709. Up to 5507 conditions per place. [2024-11-27 20:10:30,723 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 70 selfloop transitions, 1 changer transitions 0/138 dead transitions. [2024-11-27 20:10:30,723 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 138 transitions, 495 flow [2024-11-27 20:10:30,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:10:30,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:10:30,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2024-11-27 20:10:30,725 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2024-11-27 20:10:30,726 INFO L175 Difference]: Start difference. First operand has 128 places, 140 transitions, 357 flow. Second operand 3 states and 286 transitions. [2024-11-27 20:10:30,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 138 transitions, 495 flow [2024-11-27 20:10:30,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 138 transitions, 486 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 20:10:30,734 INFO L231 Difference]: Finished difference. Result has 127 places, 138 transitions, 346 flow [2024-11-27 20:10:30,735 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=127, PETRI_TRANSITIONS=138} [2024-11-27 20:10:30,735 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -3 predicate places. [2024-11-27 20:10:30,736 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 138 transitions, 346 flow [2024-11-27 20:10:30,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2024-11-27 20:10:30,736 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:10:30,736 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-27 20:10:30,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:10:30,737 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-27 20:10:30,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:30,737 INFO L85 PathProgramCache]: Analyzing trace with hash 279863620, now seen corresponding path program 1 times [2024-11-27 20:10:30,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:30,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062339388] [2024-11-27 20:10:30,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:30,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:30,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:30,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:30,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062339388] [2024-11-27 20:10:30,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062339388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:30,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:30,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-27 20:10:30,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117076408] [2024-11-27 20:10:30,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:30,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:10:30,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:30,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:10:30,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:10:30,822 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-27 20:10:30,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 138 transitions, 346 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2024-11-27 20:10:30,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:10:30,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-27 20:10:30,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:10:31,817 INFO L124 PetriNetUnfolderBase]: 4136/8032 cut-off events. [2024-11-27 20:10:31,817 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2024-11-27 20:10:31,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13709 conditions, 8032 events. 4136/8032 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 540. Compared 65916 event pairs, 2732 based on Foata normal form. 1/6396 useless extension candidates. Maximal degree in co-relation 13699. Up to 5505 conditions per place. [2024-11-27 20:10:31,877 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 68 selfloop transitions, 1 changer transitions 0/136 dead transitions. [2024-11-27 20:10:31,877 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 136 transitions, 480 flow [2024-11-27 20:10:31,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:10:31,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:10:31,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-11-27 20:10:31,881 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2024-11-27 20:10:31,885 INFO L175 Difference]: Start difference. First operand has 127 places, 138 transitions, 346 flow. Second operand 3 states and 284 transitions. [2024-11-27 20:10:31,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 136 transitions, 480 flow [2024-11-27 20:10:31,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 136 transitions, 479 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 20:10:31,891 INFO L231 Difference]: Finished difference. Result has 126 places, 136 transitions, 343 flow [2024-11-27 20:10:31,892 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=343, PETRI_PLACES=126, PETRI_TRANSITIONS=136} [2024-11-27 20:10:31,893 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -4 predicate places. [2024-11-27 20:10:31,895 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 136 transitions, 343 flow [2024-11-27 20:10:31,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2024-11-27 20:10:31,895 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:10:31,896 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:31,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:10:31,896 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-27 20:10:31,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:31,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1633950910, now seen corresponding path program 1 times [2024-11-27 20:10:31,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:31,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729802617] [2024-11-27 20:10:31,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:31,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:31,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:32,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:32,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:32,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729802617] [2024-11-27 20:10:32,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729802617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:32,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:32,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-27 20:10:32,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829321483] [2024-11-27 20:10:32,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:32,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:10:32,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:32,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:10:32,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:10:32,051 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-27 20:10:32,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 136 transitions, 343 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2024-11-27 20:10:32,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:10:32,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-27 20:10:32,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:10:33,200 INFO L124 PetriNetUnfolderBase]: 4140/8023 cut-off events. [2024-11-27 20:10:33,200 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2024-11-27 20:10:33,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13709 conditions, 8023 events. 4140/8023 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 65637 event pairs, 2736 based on Foata normal form. 2/6403 useless extension candidates. Maximal degree in co-relation 13698. Up to 5513 conditions per place. [2024-11-27 20:10:33,259 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 70 selfloop transitions, 1 changer transitions 0/134 dead transitions. [2024-11-27 20:10:33,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 134 transitions, 481 flow [2024-11-27 20:10:33,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:10:33,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:10:33,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2024-11-27 20:10:33,261 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2024-11-27 20:10:33,261 INFO L175 Difference]: Start difference. First operand has 126 places, 136 transitions, 343 flow. Second operand 3 states and 286 transitions. [2024-11-27 20:10:33,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 134 transitions, 481 flow [2024-11-27 20:10:33,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 134 transitions, 480 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 20:10:33,268 INFO L231 Difference]: Finished difference. Result has 125 places, 134 transitions, 340 flow [2024-11-27 20:10:33,268 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=125, PETRI_TRANSITIONS=134} [2024-11-27 20:10:33,269 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -5 predicate places. [2024-11-27 20:10:33,269 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 134 transitions, 340 flow [2024-11-27 20:10:33,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2024-11-27 20:10:33,269 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:10:33,270 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:33,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:10:33,270 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-27 20:10:33,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:33,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1636090315, now seen corresponding path program 1 times [2024-11-27 20:10:33,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:33,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014284654] [2024-11-27 20:10:33,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:33,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:33,486 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:33,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:33,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014284654] [2024-11-27 20:10:33,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014284654] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:10:33,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922482654] [2024-11-27 20:10:33,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:33,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:33,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:33,495 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:33,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:10:33,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:33,626 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:10:33,630 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:33,690 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:33,690 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:10:33,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922482654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:33,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:10:33,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-27 20:10:33,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441975604] [2024-11-27 20:10:33,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:33,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:10:33,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:33,692 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:10:33,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:10:33,729 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-27 20:10:33,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 134 transitions, 340 flow. Second operand has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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) [2024-11-27 20:10:33,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:10:33,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-27 20:10:33,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:10:34,873 INFO L124 PetriNetUnfolderBase]: 4140/8020 cut-off events. [2024-11-27 20:10:34,874 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2024-11-27 20:10:34,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13705 conditions, 8020 events. 4140/8020 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 65767 event pairs, 2736 based on Foata normal form. 3/6399 useless extension candidates. Maximal degree in co-relation 13693. Up to 5497 conditions per place. [2024-11-27 20:10:34,924 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 51 selfloop transitions, 21 changer transitions 0/131 dead transitions. [2024-11-27 20:10:34,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 131 transitions, 472 flow [2024-11-27 20:10:34,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:10:34,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 20:10:34,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 507 transitions. [2024-11-27 20:10:34,927 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6035714285714285 [2024-11-27 20:10:34,927 INFO L175 Difference]: Start difference. First operand has 125 places, 134 transitions, 340 flow. Second operand 6 states and 507 transitions. [2024-11-27 20:10:34,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 131 transitions, 472 flow [2024-11-27 20:10:34,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 131 transitions, 471 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 20:10:34,931 INFO L231 Difference]: Finished difference. Result has 126 places, 131 transitions, 369 flow [2024-11-27 20:10:34,931 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=369, PETRI_PLACES=126, PETRI_TRANSITIONS=131} [2024-11-27 20:10:34,932 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -4 predicate places. [2024-11-27 20:10:34,932 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 131 transitions, 369 flow [2024-11-27 20:10:34,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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) [2024-11-27 20:10:34,933 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:10:34,933 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:34,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:10:35,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:35,137 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-27 20:10:35,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:35,138 INFO L85 PathProgramCache]: Analyzing trace with hash 887130878, now seen corresponding path program 1 times [2024-11-27 20:10:35,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:35,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530306010] [2024-11-27 20:10:35,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:35,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:35,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:35,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:35,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:35,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530306010] [2024-11-27 20:10:35,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530306010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:35,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:35,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-27 20:10:35,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778480163] [2024-11-27 20:10:35,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:35,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:10:35,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:35,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:10:35,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:10:35,231 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-27 20:10:35,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 131 transitions, 369 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2024-11-27 20:10:35,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:10:35,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-27 20:10:35,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:10:36,089 INFO L124 PetriNetUnfolderBase]: 4140/8018 cut-off events. [2024-11-27 20:10:36,089 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2024-11-27 20:10:36,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13721 conditions, 8018 events. 4140/8018 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 65649 event pairs, 2736 based on Foata normal form. 1/6398 useless extension candidates. Maximal degree in co-relation 13709. Up to 5511 conditions per place. [2024-11-27 20:10:36,132 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 68 selfloop transitions, 1 changer transitions 0/129 dead transitions. [2024-11-27 20:10:36,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 129 transitions, 503 flow [2024-11-27 20:10:36,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:10:36,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:10:36,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-11-27 20:10:36,135 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2024-11-27 20:10:36,135 INFO L175 Difference]: Start difference. First operand has 126 places, 131 transitions, 369 flow. Second operand 3 states and 284 transitions. [2024-11-27 20:10:36,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 129 transitions, 503 flow [2024-11-27 20:10:36,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 129 transitions, 458 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-27 20:10:36,140 INFO L231 Difference]: Finished difference. Result has 122 places, 129 transitions, 322 flow [2024-11-27 20:10:36,140 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=122, PETRI_TRANSITIONS=129} [2024-11-27 20:10:36,141 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -8 predicate places. [2024-11-27 20:10:36,141 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 129 transitions, 322 flow [2024-11-27 20:10:36,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2024-11-27 20:10:36,141 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:10:36,142 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-27 20:10:36,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:10:36,142 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-27 20:10:36,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:36,143 INFO L85 PathProgramCache]: Analyzing trace with hash 820809252, now seen corresponding path program 1 times [2024-11-27 20:10:36,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:36,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920046616] [2024-11-27 20:10:36,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:36,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:36,281 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:36,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:36,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920046616] [2024-11-27 20:10:36,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920046616] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:10:36,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906768539] [2024-11-27 20:10:36,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:36,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:36,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:36,286 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:36,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:10:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:36,413 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:10:36,414 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:36,453 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:36,454 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:10:36,525 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:36,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906768539] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:10:36,526 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:10:36,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-27 20:10:36,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620064146] [2024-11-27 20:10:36,526 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:10:36,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:10:36,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:36,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:10:36,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:10:36,589 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-27 20:10:36,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 129 transitions, 322 flow. Second operand has 12 states, 12 states have (on average 73.16666666666667) internal successors, (878), 12 states have internal predecessors, (878), 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) [2024-11-27 20:10:36,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:10:36,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-27 20:10:36,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:10:37,621 INFO L124 PetriNetUnfolderBase]: 4149/8054 cut-off events. [2024-11-27 20:10:37,622 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2024-11-27 20:10:37,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13790 conditions, 8054 events. 4149/8054 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 65869 event pairs, 2736 based on Foata normal form. 9/6433 useless extension candidates. Maximal degree in co-relation 13778. Up to 5518 conditions per place. [2024-11-27 20:10:37,662 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 60 selfloop transitions, 39 changer transitions 0/156 dead transitions. [2024-11-27 20:10:37,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 156 transitions, 637 flow [2024-11-27 20:10:37,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:10:37,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-27 20:10:37,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 828 transitions. [2024-11-27 20:10:37,666 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5914285714285714 [2024-11-27 20:10:37,666 INFO L175 Difference]: Start difference. First operand has 122 places, 129 transitions, 322 flow. Second operand 10 states and 828 transitions. [2024-11-27 20:10:37,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 156 transitions, 637 flow [2024-11-27 20:10:37,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 156 transitions, 636 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 20:10:37,672 INFO L231 Difference]: Finished difference. Result has 133 places, 156 transitions, 570 flow [2024-11-27 20:10:37,673 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=570, PETRI_PLACES=133, PETRI_TRANSITIONS=156} [2024-11-27 20:10:37,675 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 3 predicate places. [2024-11-27 20:10:37,675 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 156 transitions, 570 flow [2024-11-27 20:10:37,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 73.16666666666667) internal successors, (878), 12 states have internal predecessors, (878), 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) [2024-11-27 20:10:37,676 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:10:37,677 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:37,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 20:10:37,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:37,881 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-27 20:10:37,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:37,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1507428423, now seen corresponding path program 1 times [2024-11-27 20:10:37,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:37,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807560212] [2024-11-27 20:10:37,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:37,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:38,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:38,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:38,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807560212] [2024-11-27 20:10:38,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807560212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:38,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:38,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:10:38,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851097006] [2024-11-27 20:10:38,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:38,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:10:38,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:38,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:10:38,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:10:38,080 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-27 20:10:38,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 156 transitions, 570 flow. Second operand has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 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) [2024-11-27 20:10:38,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:10:38,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-27 20:10:38,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:10:38,906 INFO L124 PetriNetUnfolderBase]: 4152/8066 cut-off events. [2024-11-27 20:10:38,906 INFO L125 PetriNetUnfolderBase]: For 161/161 co-relation queries the response was YES. [2024-11-27 20:10:38,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13883 conditions, 8066 events. 4152/8066 cut-off events. For 161/161 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 65925 event pairs, 2736 based on Foata normal form. 3/6445 useless extension candidates. Maximal degree in co-relation 13868. Up to 5548 conditions per place. [2024-11-27 20:10:38,942 INFO L140 encePairwiseOnDemand]: 122/140 looper letters, 99 selfloop transitions, 12 changer transitions 0/165 dead transitions. [2024-11-27 20:10:38,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 165 transitions, 810 flow [2024-11-27 20:10:38,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:10:38,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 20:10:38,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2024-11-27 20:10:38,943 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6589285714285714 [2024-11-27 20:10:38,943 INFO L175 Difference]: Start difference. First operand has 133 places, 156 transitions, 570 flow. Second operand 4 states and 369 transitions. [2024-11-27 20:10:38,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 165 transitions, 810 flow [2024-11-27 20:10:38,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 165 transitions, 777 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-27 20:10:38,950 INFO L231 Difference]: Finished difference. Result has 136 places, 165 transitions, 624 flow [2024-11-27 20:10:38,950 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=537, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=624, PETRI_PLACES=136, PETRI_TRANSITIONS=165} [2024-11-27 20:10:38,951 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 6 predicate places. [2024-11-27 20:10:38,951 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 165 transitions, 624 flow [2024-11-27 20:10:38,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 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) [2024-11-27 20:10:38,951 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:10:38,952 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:38,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:10:38,952 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-27 20:10:38,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:38,952 INFO L85 PathProgramCache]: Analyzing trace with hash -376357365, now seen corresponding path program 1 times [2024-11-27 20:10:38,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:38,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080134145] [2024-11-27 20:10:38,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:38,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:38,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:39,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 20:10:39,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:39,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080134145] [2024-11-27 20:10:39,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080134145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:39,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:39,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:10:39,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938805644] [2024-11-27 20:10:39,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:39,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:10:39,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:39,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:10:39,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:10:39,148 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-27 20:10:39,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 165 transitions, 624 flow. Second operand has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 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) [2024-11-27 20:10:39,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:10:39,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-27 20:10:39,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:10:39,939 INFO L124 PetriNetUnfolderBase]: 4151/8065 cut-off events. [2024-11-27 20:10:39,940 INFO L125 PetriNetUnfolderBase]: For 143/143 co-relation queries the response was YES. [2024-11-27 20:10:39,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13898 conditions, 8065 events. 4151/8065 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 65927 event pairs, 2736 based on Foata normal form. 1/6448 useless extension candidates. Maximal degree in co-relation 13880. Up to 5544 conditions per place. [2024-11-27 20:10:39,974 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 101 selfloop transitions, 3 changer transitions 0/164 dead transitions. [2024-11-27 20:10:39,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 164 transitions, 828 flow [2024-11-27 20:10:39,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:10:39,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 20:10:39,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-27 20:10:39,976 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-27 20:10:39,976 INFO L175 Difference]: Start difference. First operand has 136 places, 165 transitions, 624 flow. Second operand 4 states and 359 transitions. [2024-11-27 20:10:39,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 164 transitions, 828 flow [2024-11-27 20:10:39,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 164 transitions, 819 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 20:10:39,980 INFO L231 Difference]: Finished difference. Result has 138 places, 164 transitions, 617 flow [2024-11-27 20:10:39,981 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=611, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=617, PETRI_PLACES=138, PETRI_TRANSITIONS=164} [2024-11-27 20:10:39,981 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 8 predicate places. [2024-11-27 20:10:39,981 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 164 transitions, 617 flow [2024-11-27 20:10:39,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 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) [2024-11-27 20:10:39,982 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:10:39,982 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1] [2024-11-27 20:10:39,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 20:10:39,982 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-27 20:10:39,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:39,983 INFO L85 PathProgramCache]: Analyzing trace with hash 554206356, now seen corresponding path program 2 times [2024-11-27 20:10:39,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:39,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186955233] [2024-11-27 20:10:39,983 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:10:39,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:40,003 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:10:40,003 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:10:40,099 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-27 20:10:40,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:40,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186955233] [2024-11-27 20:10:40,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186955233] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:10:40,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669640145] [2024-11-27 20:10:40,100 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:10:40,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:40,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:40,102 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:40,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:10:40,216 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:10:40,216 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:10:40,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:10:40,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:40,262 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-27 20:10:40,262 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:10:40,314 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-27 20:10:40,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669640145] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:10:40,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:10:40,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2024-11-27 20:10:40,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824829110] [2024-11-27 20:10:40,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:10:40,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:10:40,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:40,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:10:40,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:10:40,358 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 140 [2024-11-27 20:10:40,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 164 transitions, 617 flow. Second operand has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 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) [2024-11-27 20:10:40,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:10:40,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 140 [2024-11-27 20:10:40,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:10:41,137 INFO L124 PetriNetUnfolderBase]: 4151/8062 cut-off events. [2024-11-27 20:10:41,138 INFO L125 PetriNetUnfolderBase]: For 153/153 co-relation queries the response was YES. [2024-11-27 20:10:41,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13880 conditions, 8062 events. 4151/8062 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 65895 event pairs, 2736 based on Foata normal form. 3/6447 useless extension candidates. Maximal degree in co-relation 13861. Up to 5513 conditions per place. [2024-11-27 20:10:41,268 INFO L140 encePairwiseOnDemand]: 124/140 looper letters, 56 selfloop transitions, 48 changer transitions 0/161 dead transitions. [2024-11-27 20:10:41,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 161 transitions, 795 flow [2024-11-27 20:10:41,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:10:41,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-27 20:10:41,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 403 transitions. [2024-11-27 20:10:41,270 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5757142857142857 [2024-11-27 20:10:41,270 INFO L175 Difference]: Start difference. First operand has 138 places, 164 transitions, 617 flow. Second operand 5 states and 403 transitions. [2024-11-27 20:10:41,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 161 transitions, 795 flow [2024-11-27 20:10:41,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 161 transitions, 761 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-27 20:10:41,273 INFO L231 Difference]: Finished difference. Result has 133 places, 161 transitions, 649 flow [2024-11-27 20:10:41,274 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=649, PETRI_PLACES=133, PETRI_TRANSITIONS=161} [2024-11-27 20:10:41,274 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 3 predicate places. [2024-11-27 20:10:41,274 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 161 transitions, 649 flow [2024-11-27 20:10:41,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 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) [2024-11-27 20:10:41,275 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:10:41,275 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:41,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 20:10:41,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-27 20:10:41,476 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-27 20:10:41,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:41,476 INFO L85 PathProgramCache]: Analyzing trace with hash -239276421, now seen corresponding path program 1 times [2024-11-27 20:10:41,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:41,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082313968] [2024-11-27 20:10:41,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:41,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:41,644 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 20:10:41,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:41,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082313968] [2024-11-27 20:10:41,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082313968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:41,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:41,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:10:41,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132048684] [2024-11-27 20:10:41,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:41,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:10:41,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:41,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:10:41,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:10:41,666 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-27 20:10:41,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 161 transitions, 649 flow. Second operand has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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) [2024-11-27 20:10:41,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:10:41,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-27 20:10:41,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:10:42,722 INFO L124 PetriNetUnfolderBase]: 4150/8061 cut-off events. [2024-11-27 20:10:42,723 INFO L125 PetriNetUnfolderBase]: For 161/161 co-relation queries the response was YES. [2024-11-27 20:10:42,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13903 conditions, 8061 events. 4150/8061 cut-off events. For 161/161 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 65842 event pairs, 2736 based on Foata normal form. 0/6433 useless extension candidates. Maximal degree in co-relation 13888. Up to 5543 conditions per place. [2024-11-27 20:10:42,774 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 100 selfloop transitions, 3 changer transitions 0/160 dead transitions. [2024-11-27 20:10:42,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 160 transitions, 849 flow [2024-11-27 20:10:42,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:10:42,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 20:10:42,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-27 20:10:42,776 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-27 20:10:42,777 INFO L175 Difference]: Start difference. First operand has 133 places, 161 transitions, 649 flow. Second operand 4 states and 359 transitions. [2024-11-27 20:10:42,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 160 transitions, 849 flow [2024-11-27 20:10:42,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 160 transitions, 755 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-27 20:10:42,781 INFO L231 Difference]: Finished difference. Result has 132 places, 160 transitions, 555 flow [2024-11-27 20:10:42,782 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=549, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=555, PETRI_PLACES=132, PETRI_TRANSITIONS=160} [2024-11-27 20:10:42,782 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 2 predicate places. [2024-11-27 20:10:42,783 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 160 transitions, 555 flow [2024-11-27 20:10:42,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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) [2024-11-27 20:10:42,783 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:10:42,783 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:42,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 20:10:42,784 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-27 20:10:42,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:42,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1823615336, now seen corresponding path program 1 times [2024-11-27 20:10:42,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:42,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356711416] [2024-11-27 20:10:42,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:42,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:42,914 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:10:42,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:42,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356711416] [2024-11-27 20:10:42,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356711416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:42,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:42,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:10:42,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139730978] [2024-11-27 20:10:42,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:42,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:10:42,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:42,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:10:42,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:10:42,931 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-27 20:10:42,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 160 transitions, 555 flow. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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) [2024-11-27 20:10:42,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:10:42,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-27 20:10:42,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:10:43,734 INFO L124 PetriNetUnfolderBase]: 4149/8060 cut-off events. [2024-11-27 20:10:43,734 INFO L125 PetriNetUnfolderBase]: For 116/116 co-relation queries the response was YES. [2024-11-27 20:10:43,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13856 conditions, 8060 events. 4149/8060 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 65934 event pairs, 2736 based on Foata normal form. 0/6433 useless extension candidates. Maximal degree in co-relation 13841. Up to 5542 conditions per place. [2024-11-27 20:10:43,769 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 99 selfloop transitions, 3 changer transitions 0/159 dead transitions. [2024-11-27 20:10:43,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 159 transitions, 755 flow [2024-11-27 20:10:43,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:10:43,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 20:10:43,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-27 20:10:43,771 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-27 20:10:43,771 INFO L175 Difference]: Start difference. First operand has 132 places, 160 transitions, 555 flow. Second operand 4 states and 359 transitions. [2024-11-27 20:10:43,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 159 transitions, 755 flow [2024-11-27 20:10:43,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 159 transitions, 751 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:10:43,774 INFO L231 Difference]: Finished difference. Result has 133 places, 159 transitions, 553 flow [2024-11-27 20:10:43,774 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=547, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=553, PETRI_PLACES=133, PETRI_TRANSITIONS=159} [2024-11-27 20:10:43,775 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 3 predicate places. [2024-11-27 20:10:43,775 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 159 transitions, 553 flow [2024-11-27 20:10:43,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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) [2024-11-27 20:10:43,775 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:10:43,776 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:43,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 20:10:43,776 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-27 20:10:43,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:43,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1241313606, now seen corresponding path program 1 times [2024-11-27 20:10:43,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:43,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352570669] [2024-11-27 20:10:43,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:43,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:43,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:43,967 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 20:10:43,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:43,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352570669] [2024-11-27 20:10:43,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352570669] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:10:43,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989394628] [2024-11-27 20:10:43,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:43,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:43,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:43,972 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:43,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:10:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:44,118 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 20:10:44,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:44,341 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 20:10:44,341 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:10:44,586 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 20:10:44,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989394628] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:10:44,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:10:44,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-11-27 20:10:44,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848948839] [2024-11-27 20:10:44,587 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:10:44,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 20:10:44,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:44,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 20:10:44,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:10:45,123 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 140 [2024-11-27 20:10:45,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 159 transitions, 553 flow. Second operand has 19 states, 19 states have (on average 64.26315789473684) internal successors, (1221), 19 states have internal predecessors, (1221), 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) [2024-11-27 20:10:45,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:10:45,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 140 [2024-11-27 20:10:45,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:10:47,633 INFO L124 PetriNetUnfolderBase]: 8292/16088 cut-off events. [2024-11-27 20:10:47,633 INFO L125 PetriNetUnfolderBase]: For 219/219 co-relation queries the response was YES. [2024-11-27 20:10:47,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27622 conditions, 16088 events. 8292/16088 cut-off events. For 219/219 co-relation queries the response was YES. Maximal size of possible extension queue 1009. Compared 146055 event pairs, 5472 based on Foata normal form. 5/12953 useless extension candidates. Maximal degree in co-relation 27607. Up to 5514 conditions per place. [2024-11-27 20:10:47,718 INFO L140 encePairwiseOnDemand]: 117/140 looper letters, 120 selfloop transitions, 71 changer transitions 0/242 dead transitions. [2024-11-27 20:10:47,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 242 transitions, 1257 flow [2024-11-27 20:10:47,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 20:10:47,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-27 20:10:47,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1263 transitions. [2024-11-27 20:10:47,723 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5011904761904762 [2024-11-27 20:10:47,724 INFO L175 Difference]: Start difference. First operand has 133 places, 159 transitions, 553 flow. Second operand 18 states and 1263 transitions. [2024-11-27 20:10:47,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 242 transitions, 1257 flow [2024-11-27 20:10:47,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 242 transitions, 1251 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:10:47,730 INFO L231 Difference]: Finished difference. Result has 147 places, 195 transitions, 980 flow [2024-11-27 20:10:47,731 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=537, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=980, PETRI_PLACES=147, PETRI_TRANSITIONS=195} [2024-11-27 20:10:47,731 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 17 predicate places. [2024-11-27 20:10:47,731 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 195 transitions, 980 flow [2024-11-27 20:10:47,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 64.26315789473684) internal successors, (1221), 19 states have internal predecessors, (1221), 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) [2024-11-27 20:10:47,732 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:10:47,732 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:47,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 20:10:47,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-27 20:10:47,937 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-27 20:10:47,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:47,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1660887547, now seen corresponding path program 1 times [2024-11-27 20:10:47,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:47,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424428743] [2024-11-27 20:10:47,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:47,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:47,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:48,094 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 20:10:48,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:48,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424428743] [2024-11-27 20:10:48,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424428743] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:10:48,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009510243] [2024-11-27 20:10:48,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:48,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:48,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:48,097 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:48,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:10:48,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:48,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:10:48,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:48,291 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 20:10:48,291 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:10:48,353 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 20:10:48,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009510243] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:10:48,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:10:48,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-27 20:10:48,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735383186] [2024-11-27 20:10:48,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:10:48,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:10:48,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:48,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:10:48,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:10:48,427 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-27 20:10:48,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 195 transitions, 980 flow. Second operand has 12 states, 12 states have (on average 74.16666666666667) internal successors, (890), 12 states have internal predecessors, (890), 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) [2024-11-27 20:10:48,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:10:48,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-27 20:10:48,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:10:50,196 INFO L124 PetriNetUnfolderBase]: 8307/16148 cut-off events. [2024-11-27 20:10:50,196 INFO L125 PetriNetUnfolderBase]: For 461/461 co-relation queries the response was YES. [2024-11-27 20:10:50,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27936 conditions, 16148 events. 8307/16148 cut-off events. For 461/461 co-relation queries the response was YES. Maximal size of possible extension queue 1012. Compared 146717 event pairs, 5472 based on Foata normal form. 15/12931 useless extension candidates. Maximal degree in co-relation 27921. Up to 11078 conditions per place. [2024-11-27 20:10:50,281 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 119 selfloop transitions, 70 changer transitions 0/240 dead transitions. [2024-11-27 20:10:50,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 240 transitions, 1637 flow [2024-11-27 20:10:50,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:10:50,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-27 20:10:50,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 828 transitions. [2024-11-27 20:10:50,285 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5914285714285714 [2024-11-27 20:10:50,286 INFO L175 Difference]: Start difference. First operand has 147 places, 195 transitions, 980 flow. Second operand 10 states and 828 transitions. [2024-11-27 20:10:50,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 240 transitions, 1637 flow [2024-11-27 20:10:50,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 240 transitions, 1505 flow, removed 41 selfloop flow, removed 4 redundant places. [2024-11-27 20:10:50,297 INFO L231 Difference]: Finished difference. Result has 155 places, 240 transitions, 1345 flow [2024-11-27 20:10:50,297 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=908, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1345, PETRI_PLACES=155, PETRI_TRANSITIONS=240} [2024-11-27 20:10:50,298 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 25 predicate places. [2024-11-27 20:10:50,298 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 240 transitions, 1345 flow [2024-11-27 20:10:50,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 74.16666666666667) internal successors, (890), 12 states have internal predecessors, (890), 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) [2024-11-27 20:10:50,299 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:10:50,299 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:50,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 20:10:50,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-27 20:10:50,503 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-27 20:10:50,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:50,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1543717105, now seen corresponding path program 1 times [2024-11-27 20:10:50,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:50,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726036985] [2024-11-27 20:10:50,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:50,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:50,670 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 20:10:50,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:50,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726036985] [2024-11-27 20:10:50,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726036985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:50,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:50,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:10:50,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955442904] [2024-11-27 20:10:50,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:50,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:10:50,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:50,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:10:50,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:10:50,706 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-27 20:10:50,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 240 transitions, 1345 flow. Second operand has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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) [2024-11-27 20:10:50,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:10:50,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-27 20:10:50,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:10:53,907 INFO L124 PetriNetUnfolderBase]: 16165/28616 cut-off events. [2024-11-27 20:10:53,907 INFO L125 PetriNetUnfolderBase]: For 516/516 co-relation queries the response was YES. [2024-11-27 20:10:53,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51221 conditions, 28616 events. 16165/28616 cut-off events. For 516/516 co-relation queries the response was YES. Maximal size of possible extension queue 1706. Compared 258776 event pairs, 4950 based on Foata normal form. 728/24010 useless extension candidates. Maximal degree in co-relation 51203. Up to 10198 conditions per place. [2024-11-27 20:10:54,065 INFO L140 encePairwiseOnDemand]: 132/140 looper letters, 236 selfloop transitions, 5 changer transitions 0/289 dead transitions. [2024-11-27 20:10:54,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 289 transitions, 1931 flow [2024-11-27 20:10:54,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:10:54,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 20:10:54,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 406 transitions. [2024-11-27 20:10:54,067 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.725 [2024-11-27 20:10:54,067 INFO L175 Difference]: Start difference. First operand has 155 places, 240 transitions, 1345 flow. Second operand 4 states and 406 transitions. [2024-11-27 20:10:54,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 289 transitions, 1931 flow [2024-11-27 20:10:54,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 289 transitions, 1871 flow, removed 15 selfloop flow, removed 2 redundant places. [2024-11-27 20:10:54,078 INFO L231 Difference]: Finished difference. Result has 158 places, 242 transitions, 1319 flow [2024-11-27 20:10:54,078 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1283, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1319, PETRI_PLACES=158, PETRI_TRANSITIONS=242} [2024-11-27 20:10:54,079 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 28 predicate places. [2024-11-27 20:10:54,079 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 242 transitions, 1319 flow [2024-11-27 20:10:54,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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) [2024-11-27 20:10:54,079 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:10:54,080 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:54,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 20:10:54,080 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-27 20:10:54,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:54,081 INFO L85 PathProgramCache]: Analyzing trace with hash 610591589, now seen corresponding path program 1 times [2024-11-27 20:10:54,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:54,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010720422] [2024-11-27 20:10:54,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:54,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:54,246 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 20:10:54,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:54,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010720422] [2024-11-27 20:10:54,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010720422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:54,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:54,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:10:54,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034387144] [2024-11-27 20:10:54,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:54,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:10:54,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:54,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:10:54,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:10:54,267 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-27 20:10:54,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 242 transitions, 1319 flow. Second operand has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 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) [2024-11-27 20:10:54,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:10:54,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-27 20:10:54,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:10:57,183 INFO L124 PetriNetUnfolderBase]: 9997/20054 cut-off events. [2024-11-27 20:10:57,183 INFO L125 PetriNetUnfolderBase]: For 3851/4395 co-relation queries the response was YES. [2024-11-27 20:10:57,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36877 conditions, 20054 events. 9997/20054 cut-off events. For 3851/4395 co-relation queries the response was YES. Maximal size of possible extension queue 1230. Compared 193673 event pairs, 6740 based on Foata normal form. 276/16596 useless extension candidates. Maximal degree in co-relation 36856. Up to 13385 conditions per place. [2024-11-27 20:10:57,290 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 181 selfloop transitions, 5 changer transitions 0/240 dead transitions. [2024-11-27 20:10:57,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 240 transitions, 1680 flow [2024-11-27 20:10:57,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:10:57,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 20:10:57,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-27 20:10:57,292 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-27 20:10:57,292 INFO L175 Difference]: Start difference. First operand has 158 places, 242 transitions, 1319 flow. Second operand 4 states and 359 transitions. [2024-11-27 20:10:57,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 240 transitions, 1680 flow [2024-11-27 20:10:57,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 240 transitions, 1680 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 20:10:57,317 INFO L231 Difference]: Finished difference. Result has 161 places, 240 transitions, 1318 flow [2024-11-27 20:10:57,317 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1308, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1318, PETRI_PLACES=161, PETRI_TRANSITIONS=240} [2024-11-27 20:10:57,318 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 31 predicate places. [2024-11-27 20:10:57,318 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 240 transitions, 1318 flow [2024-11-27 20:10:57,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 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) [2024-11-27 20:10:57,319 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:10:57,319 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:57,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 20:10:57,319 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-27 20:10:57,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:57,320 INFO L85 PathProgramCache]: Analyzing trace with hash -625611573, now seen corresponding path program 1 times [2024-11-27 20:10:57,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:57,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384436817] [2024-11-27 20:10:57,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:57,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:57,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:57,523 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:10:57,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:57,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384436817] [2024-11-27 20:10:57,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384436817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:57,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:57,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:10:57,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666125648] [2024-11-27 20:10:57,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:57,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:10:57,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:57,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:10:57,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:10:57,538 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-27 20:10:57,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 240 transitions, 1318 flow. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2024-11-27 20:10:57,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:10:57,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-27 20:10:57,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:10:59,990 INFO L124 PetriNetUnfolderBase]: 9995/20052 cut-off events. [2024-11-27 20:10:59,990 INFO L125 PetriNetUnfolderBase]: For 3861/4405 co-relation queries the response was YES. [2024-11-27 20:11:00,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36875 conditions, 20052 events. 9995/20052 cut-off events. For 3861/4405 co-relation queries the response was YES. Maximal size of possible extension queue 1230. Compared 193535 event pairs, 6740 based on Foata normal form. 276/16594 useless extension candidates. Maximal degree in co-relation 36852. Up to 13383 conditions per place. [2024-11-27 20:11:00,115 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 179 selfloop transitions, 5 changer transitions 0/238 dead transitions. [2024-11-27 20:11:00,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 238 transitions, 1675 flow [2024-11-27 20:11:00,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:11:00,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 20:11:00,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-27 20:11:00,117 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-27 20:11:00,117 INFO L175 Difference]: Start difference. First operand has 161 places, 240 transitions, 1318 flow. Second operand 4 states and 359 transitions. [2024-11-27 20:11:00,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 238 transitions, 1675 flow [2024-11-27 20:11:00,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 238 transitions, 1669 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:11:00,137 INFO L231 Difference]: Finished difference. Result has 162 places, 238 transitions, 1311 flow [2024-11-27 20:11:00,138 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1301, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1311, PETRI_PLACES=162, PETRI_TRANSITIONS=238} [2024-11-27 20:11:00,139 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 32 predicate places. [2024-11-27 20:11:00,139 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 238 transitions, 1311 flow [2024-11-27 20:11:00,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2024-11-27 20:11:00,139 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:11:00,139 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:11:00,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 20:11:00,140 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-27 20:11:00,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:11:00,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1263381835, now seen corresponding path program 2 times [2024-11-27 20:11:00,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:11:00,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13784058] [2024-11-27 20:11:00,141 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:11:00,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:11:00,174 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:11:00,174 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:11:00,291 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-27 20:11:00,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:11:00,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13784058] [2024-11-27 20:11:00,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13784058] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:11:00,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664721801] [2024-11-27 20:11:00,292 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:11:00,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:11:00,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:11:00,295 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:11:00,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 20:11:00,463 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:11:00,463 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:11:00,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:11:00,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:11:00,555 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-27 20:11:00,555 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:11:00,642 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-27 20:11:00,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664721801] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:11:00,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:11:00,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 4 [2024-11-27 20:11:00,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410912047] [2024-11-27 20:11:00,643 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:11:00,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:11:00,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:11:00,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:11:00,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:11:00,698 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 140 [2024-11-27 20:11:00,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 238 transitions, 1311 flow. Second operand has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 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) [2024-11-27 20:11:00,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:11:00,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 140 [2024-11-27 20:11:00,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:11:03,395 INFO L124 PetriNetUnfolderBase]: 9995/20047 cut-off events. [2024-11-27 20:11:03,395 INFO L125 PetriNetUnfolderBase]: For 3885/4429 co-relation queries the response was YES. [2024-11-27 20:11:03,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36852 conditions, 20047 events. 9995/20047 cut-off events. For 3885/4429 co-relation queries the response was YES. Maximal size of possible extension queue 1229. Compared 193461 event pairs, 6740 based on Foata normal form. 279/16592 useless extension candidates. Maximal degree in co-relation 36829. Up to 13329 conditions per place. [2024-11-27 20:11:03,682 INFO L140 encePairwiseOnDemand]: 124/140 looper letters, 102 selfloop transitions, 82 changer transitions 0/235 dead transitions. [2024-11-27 20:11:03,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 235 transitions, 1649 flow [2024-11-27 20:11:03,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:11:03,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-27 20:11:03,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 403 transitions. [2024-11-27 20:11:03,684 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5757142857142857 [2024-11-27 20:11:03,684 INFO L175 Difference]: Start difference. First operand has 162 places, 238 transitions, 1311 flow. Second operand 5 states and 403 transitions. [2024-11-27 20:11:03,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 235 transitions, 1649 flow [2024-11-27 20:11:03,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 235 transitions, 1591 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-11-27 20:11:03,707 INFO L231 Difference]: Finished difference. Result has 157 places, 235 transitions, 1387 flow [2024-11-27 20:11:03,707 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1223, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1387, PETRI_PLACES=157, PETRI_TRANSITIONS=235} [2024-11-27 20:11:03,708 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 27 predicate places. [2024-11-27 20:11:03,708 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 235 transitions, 1387 flow [2024-11-27 20:11:03,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 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) [2024-11-27 20:11:03,708 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:11:03,709 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:11:03,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-27 20:11:03,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:11:03,913 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-27 20:11:03,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:11:03,914 INFO L85 PathProgramCache]: Analyzing trace with hash 324633008, now seen corresponding path program 1 times [2024-11-27 20:11:03,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:11:03,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148789706] [2024-11-27 20:11:03,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:11:03,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:11:03,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:11:04,076 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 20:11:04,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:11:04,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148789706] [2024-11-27 20:11:04,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148789706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:11:04,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:11:04,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:11:04,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448826462] [2024-11-27 20:11:04,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:11:04,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:11:04,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:11:04,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:11:04,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:11:04,091 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-27 20:11:04,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 235 transitions, 1387 flow. Second operand has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 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) [2024-11-27 20:11:04,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:11:04,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-27 20:11:04,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:11:06,798 INFO L124 PetriNetUnfolderBase]: 9993/20045 cut-off events. [2024-11-27 20:11:06,798 INFO L125 PetriNetUnfolderBase]: For 3908/4452 co-relation queries the response was YES. [2024-11-27 20:11:06,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36891 conditions, 20045 events. 9993/20045 cut-off events. For 3908/4452 co-relation queries the response was YES. Maximal size of possible extension queue 1229. Compared 193403 event pairs, 6740 based on Foata normal form. 275/16580 useless extension candidates. Maximal degree in co-relation 36872. Up to 13381 conditions per place. [2024-11-27 20:11:06,904 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 177 selfloop transitions, 5 changer transitions 0/233 dead transitions. [2024-11-27 20:11:06,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 233 transitions, 1736 flow [2024-11-27 20:11:06,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:11:06,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 20:11:06,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-27 20:11:06,906 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-27 20:11:06,906 INFO L175 Difference]: Start difference. First operand has 157 places, 235 transitions, 1387 flow. Second operand 4 states and 359 transitions. [2024-11-27 20:11:06,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 233 transitions, 1736 flow [2024-11-27 20:11:06,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 233 transitions, 1576 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-27 20:11:06,927 INFO L231 Difference]: Finished difference. Result has 156 places, 233 transitions, 1222 flow [2024-11-27 20:11:06,928 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1212, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1222, PETRI_PLACES=156, PETRI_TRANSITIONS=233} [2024-11-27 20:11:06,928 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 26 predicate places. [2024-11-27 20:11:06,928 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 233 transitions, 1222 flow [2024-11-27 20:11:06,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 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) [2024-11-27 20:11:06,929 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:11:06,929 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:11:06,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-27 20:11:06,929 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-27 20:11:06,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:11:06,930 INFO L85 PathProgramCache]: Analyzing trace with hash 130171430, now seen corresponding path program 1 times [2024-11-27 20:11:06,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:11:06,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496294239] [2024-11-27 20:11:06,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:11:06,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:11:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:11:08,259 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:11:08,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:11:08,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496294239] [2024-11-27 20:11:08,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496294239] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:11:08,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713666455] [2024-11-27 20:11:08,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:11:08,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:11:08,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:11:08,262 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:11:08,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 20:11:08,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:11:08,463 INFO L256 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-27 20:11:08,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:11:08,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-27 20:11:08,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2024-11-27 20:11:08,939 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-27 20:11:08,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-27 20:11:09,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-11-27 20:11:09,460 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-11-27 20:11:09,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2024-11-27 20:11:09,484 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:11:09,484 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:11:09,605 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_373 (Array Int Int))) (< (select (select (store |c_#memory_int#2| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_373) c_~get_5~0.base) (+ (* c_~id_3~0 4) c_~get_5~0.offset)) 9223372039002259456)) is different from false [2024-11-27 20:11:09,818 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:11:09,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 27 [2024-11-27 20:11:09,835 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:11:09,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 33 [2024-11-27 20:11:09,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2024-11-27 20:11:09,976 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 1 not checked. [2024-11-27 20:11:09,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713666455] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:11:09,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:11:09,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-11-27 20:11:09,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140530956] [2024-11-27 20:11:09,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:11:09,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-27 20:11:09,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:11:09,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-27 20:11:09,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=382, Unknown=1, NotChecked=40, Total=506 [2024-11-27 20:11:10,058 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 140 [2024-11-27 20:11:10,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 233 transitions, 1222 flow. Second operand has 23 states, 23 states have (on average 57.869565217391305) internal successors, (1331), 23 states have internal predecessors, (1331), 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) [2024-11-27 20:11:10,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:11:10,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 140 [2024-11-27 20:11:10,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:11:17,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-27 20:11:21,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-27 20:11:37,925 INFO L124 PetriNetUnfolderBase]: 77793/118503 cut-off events. [2024-11-27 20:11:37,925 INFO L125 PetriNetUnfolderBase]: For 11882/12326 co-relation queries the response was YES. [2024-11-27 20:11:38,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241677 conditions, 118503 events. 77793/118503 cut-off events. For 11882/12326 co-relation queries the response was YES. Maximal size of possible extension queue 4985. Compared 1015824 event pairs, 17482 based on Foata normal form. 444/104225 useless extension candidates. Maximal degree in co-relation 241658. Up to 24786 conditions per place. [2024-11-27 20:11:38,598 INFO L140 encePairwiseOnDemand]: 123/140 looper letters, 521 selfloop transitions, 110 changer transitions 0/668 dead transitions. [2024-11-27 20:11:38,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 668 transitions, 4385 flow [2024-11-27 20:11:38,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-27 20:11:38,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-27 20:11:38,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1531 transitions. [2024-11-27 20:11:38,602 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49707792207792206 [2024-11-27 20:11:38,602 INFO L175 Difference]: Start difference. First operand has 156 places, 233 transitions, 1222 flow. Second operand 22 states and 1531 transitions. [2024-11-27 20:11:38,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 668 transitions, 4385 flow [2024-11-27 20:11:39,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 668 transitions, 4371 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:11:39,757 INFO L231 Difference]: Finished difference. Result has 180 places, 292 transitions, 1993 flow [2024-11-27 20:11:39,758 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1216, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1993, PETRI_PLACES=180, PETRI_TRANSITIONS=292} [2024-11-27 20:11:39,758 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 50 predicate places. [2024-11-27 20:11:39,758 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 292 transitions, 1993 flow [2024-11-27 20:11:39,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 57.869565217391305) internal successors, (1331), 23 states have internal predecessors, (1331), 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) [2024-11-27 20:11:39,759 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:11:39,759 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:11:39,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 20:11:39,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-27 20:11:39,963 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-27 20:11:39,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:11:39,964 INFO L85 PathProgramCache]: Analyzing trace with hash -259683148, now seen corresponding path program 1 times [2024-11-27 20:11:39,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:11:39,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030389125] [2024-11-27 20:11:39,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:11:39,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:11:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:11:41,487 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:11:41,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:11:41,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030389125] [2024-11-27 20:11:41,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030389125] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:11:41,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295169128] [2024-11-27 20:11:41,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:11:41,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:11:41,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:11:41,490 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:11:41,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa457f5-01c7-467e-a5f1-853f80e38f7d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 20:11:41,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:11:41,708 INFO L256 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-27 20:11:41,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:11:41,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-27 20:11:41,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2024-11-27 20:11:42,140 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-27 20:11:42,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-27 20:11:42,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2024-11-27 20:11:42,714 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-11-27 20:11:42,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 12 [2024-11-27 20:11:42,747 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:11:42,747 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:11:42,872 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_424 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int#2| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_424) c_~get_5~0.base) (+ (* c_~id_3~0 4) c_~get_5~0.offset)) 4294967296))) is different from false [2024-11-27 20:11:43,083 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:11:43,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2024-11-27 20:11:43,101 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:11:43,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 39 [2024-11-27 20:11:43,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2024-11-27 20:11:43,234 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 1 not checked. [2024-11-27 20:11:43,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295169128] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:11:43,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:11:43,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-11-27 20:11:43,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580756190] [2024-11-27 20:11:43,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:11:43,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-27 20:11:43,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:11:43,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-27 20:11:43,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=382, Unknown=1, NotChecked=40, Total=506 [2024-11-27 20:11:43,285 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 140 [2024-11-27 20:11:43,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 292 transitions, 1993 flow. Second operand has 23 states, 23 states have (on average 57.869565217391305) internal successors, (1331), 23 states have internal predecessors, (1331), 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) [2024-11-27 20:11:43,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:11:43,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 140 [2024-11-27 20:11:43,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:11:52,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]