./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_22-nocollapse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_22-nocollapse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU --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 a0270befea30c9963adb19613f3074c8c29d9100e1f0592dc0c89cf3d3dda0df --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:13:58,338 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:13:58,415 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 22:13:58,420 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:13:58,421 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:13:58,446 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:13:58,447 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:13:58,448 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:13:58,449 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:13:58,450 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:13:58,450 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:13:58,451 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:13:58,451 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:13:58,452 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:13:58,452 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:13:58,453 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:13:58,453 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:13:58,453 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:13:58,454 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:13:58,457 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:13:58,460 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:13:58,461 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:13:58,461 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:13:58,462 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:13:58,462 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:13:58,462 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 22:13:58,462 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:13:58,463 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:13:58,463 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:13:58,463 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:13:58,463 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:13:58,466 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:13:58,466 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:13:58,466 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:13:58,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:13:58,467 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:13:58,467 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:13:58,468 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:13:58,469 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:13:58,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:13:58,469 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:13:58,470 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:13:58,470 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:13:58,470 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:13:58,471 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0270befea30c9963adb19613f3074c8c29d9100e1f0592dc0c89cf3d3dda0df [2024-10-31 22:13:58,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:13:58,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:13:58,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:13:58,825 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:13:58,826 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:13:58,827 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/goblint-regression/09-regions_22-nocollapse.i Unable to find full path for "g++" [2024-10-31 22:14:01,286 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:14:01,677 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:14:01,678 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/sv-benchmarks/c/goblint-regression/09-regions_22-nocollapse.i [2024-10-31 22:14:01,698 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/data/7eeac7a8b/1376c23825a34c538233da34c92e416b/FLAGe1671cc65 [2024-10-31 22:14:01,868 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/data/7eeac7a8b/1376c23825a34c538233da34c92e416b [2024-10-31 22:14:01,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:14:01,876 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:14:01,878 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:14:01,879 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:14:01,887 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:14:01,889 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:14:01" (1/1) ... [2024-10-31 22:14:01,890 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b30a06e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:01, skipping insertion in model container [2024-10-31 22:14:01,890 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:14:01" (1/1) ... [2024-10-31 22:14:01,950 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:14:02,552 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 22:14:02,556 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 22:14:02,557 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 22:14:02,558 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 22:14:02,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:14:02,681 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:14:02,734 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 22:14:02,734 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 22:14:02,735 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 22:14:02,736 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 22:14:02,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:14:02,820 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:14:02,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:02 WrapperNode [2024-10-31 22:14:02,821 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:14:02,822 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:14:02,823 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:14:02,823 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:14:02,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:02" (1/1) ... [2024-10-31 22:14:02,858 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:02" (1/1) ... [2024-10-31 22:14:02,908 INFO L138 Inliner]: procedures = 274, calls = 98, calls flagged for inlining = 9, calls inlined = 8, statements flattened = 202 [2024-10-31 22:14:02,909 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:14:02,909 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:14:02,910 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:14:02,910 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:14:02,923 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:02" (1/1) ... [2024-10-31 22:14:02,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:02" (1/1) ... [2024-10-31 22:14:02,930 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:02" (1/1) ... [2024-10-31 22:14:02,955 INFO L175 MemorySlicer]: Split 84 memory accesses to 1 slices as follows [84]. 100 percent of accesses are in the largest equivalence class. The 70 initializations are split as follows [70]. The 10 writes are split as follows [10]. [2024-10-31 22:14:02,955 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:02" (1/1) ... [2024-10-31 22:14:02,956 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:02" (1/1) ... [2024-10-31 22:14:02,967 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:02" (1/1) ... [2024-10-31 22:14:02,971 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:02" (1/1) ... [2024-10-31 22:14:02,973 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:02" (1/1) ... [2024-10-31 22:14:02,975 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:02" (1/1) ... [2024-10-31 22:14:02,979 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:14:02,980 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:14:02,980 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:14:02,980 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:14:02,981 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:02" (1/1) ... [2024-10-31 22:14:02,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:14:03,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:03,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:03,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:14:03,091 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-10-31 22:14:03,091 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-10-31 22:14:03,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-31 22:14:03,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-31 22:14:03,091 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:14:03,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:14:03,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:14:03,092 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:14:03,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:14:03,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:14:03,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 22:14:03,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:14:03,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:14:03,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:14:03,095 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:14:03,308 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:14:03,310 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:14:03,781 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:14:03,781 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:14:04,603 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:14:04,603 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-31 22:14:04,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:14:04 BoogieIcfgContainer [2024-10-31 22:14:04,604 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:14:04,609 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:14:04,609 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:14:04,615 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:14:04,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:14:01" (1/3) ... [2024-10-31 22:14:04,616 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a0203f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:14:04, skipping insertion in model container [2024-10-31 22:14:04,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:02" (2/3) ... [2024-10-31 22:14:04,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a0203f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:14:04, skipping insertion in model container [2024-10-31 22:14:04,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:14:04" (3/3) ... [2024-10-31 22:14:04,620 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_22-nocollapse.i [2024-10-31 22:14:04,641 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:14:04,642 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-10-31 22:14:04,642 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:14:04,748 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:14:04,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 57 transitions, 122 flow [2024-10-31 22:14:04,842 INFO L124 PetriNetUnfolderBase]: 6/55 cut-off events. [2024-10-31 22:14:04,843 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:14:04,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 55 events. 6/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 138 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2024-10-31 22:14:04,848 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 57 transitions, 122 flow [2024-10-31 22:14:04,853 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 55 transitions, 116 flow [2024-10-31 22:14:04,869 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:14:04,878 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;@305ff7d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:14:04,878 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-10-31 22:14:04,888 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:14:04,889 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-10-31 22:14:04,889 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:14:04,889 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:14:04,890 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-31 22:14:04,890 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-31 22:14:04,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:04,896 INFO L85 PathProgramCache]: Analyzing trace with hash 16751997, now seen corresponding path program 1 times [2024-10-31 22:14:04,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:04,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014430686] [2024-10-31 22:14:04,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:04,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:14:05,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [440784334] [2024-10-31 22:14:05,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:05,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:05,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:05,116 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:05,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:14:05,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:05,309 INFO L255 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:14:05,314 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:05,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:05,359 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:14:05,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:05,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014430686] [2024-10-31 22:14:05,361 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:14:05,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440784334] [2024-10-31 22:14:05,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440784334] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:05,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:05,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:14:05,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370388540] [2024-10-31 22:14:05,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:05,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:14:05,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:05,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:14:05,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:14:05,431 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 57 [2024-10-31 22:14:05,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 55 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2024-10-31 22:14:05,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:14:05,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 57 [2024-10-31 22:14:05,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:14:05,971 INFO L124 PetriNetUnfolderBase]: 303/696 cut-off events. [2024-10-31 22:14:05,971 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-31 22:14:05,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1214 conditions, 696 events. 303/696 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3654 event pairs, 224 based on Foata normal form. 1/582 useless extension candidates. Maximal degree in co-relation 1162. Up to 490 conditions per place. [2024-10-31 22:14:05,984 INFO L140 encePairwiseOnDemand]: 52/57 looper letters, 36 selfloop transitions, 2 changer transitions 0/60 dead transitions. [2024-10-31 22:14:05,985 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 60 transitions, 202 flow [2024-10-31 22:14:05,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:14:05,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:14:05,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 113 transitions. [2024-10-31 22:14:06,001 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6608187134502924 [2024-10-31 22:14:06,003 INFO L175 Difference]: Start difference. First operand has 56 places, 55 transitions, 116 flow. Second operand 3 states and 113 transitions. [2024-10-31 22:14:06,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 60 transitions, 202 flow [2024-10-31 22:14:06,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 60 transitions, 200 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:14:06,012 INFO L231 Difference]: Finished difference. Result has 57 places, 56 transitions, 130 flow [2024-10-31 22:14:06,014 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=57, PETRI_TRANSITIONS=56} [2024-10-31 22:14:06,018 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 1 predicate places. [2024-10-31 22:14:06,019 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 56 transitions, 130 flow [2024-10-31 22:14:06,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2024-10-31 22:14:06,019 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:14:06,020 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-31 22:14:06,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:06,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-10-31 22:14:06,221 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-31 22:14:06,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:06,223 INFO L85 PathProgramCache]: Analyzing trace with hash 16752016, now seen corresponding path program 1 times [2024-10-31 22:14:06,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:06,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156519835] [2024-10-31 22:14:06,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:06,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:06,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:06,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:06,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156519835] [2024-10-31 22:14:06,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156519835] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:06,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:06,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:14:06,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891373514] [2024-10-31 22:14:06,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:06,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:14:06,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:06,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:14:06,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:14:06,498 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 57 [2024-10-31 22:14:06,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 56 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2024-10-31 22:14:06,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:14:06,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 57 [2024-10-31 22:14:06,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:14:06,857 INFO L124 PetriNetUnfolderBase]: 303/710 cut-off events. [2024-10-31 22:14:06,857 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:14:06,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1239 conditions, 710 events. 303/710 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3748 event pairs, 224 based on Foata normal form. 4/599 useless extension candidates. Maximal degree in co-relation 1203. Up to 495 conditions per place. [2024-10-31 22:14:06,864 INFO L140 encePairwiseOnDemand]: 52/57 looper letters, 34 selfloop transitions, 2 changer transitions 0/58 dead transitions. [2024-10-31 22:14:06,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 58 transitions, 206 flow [2024-10-31 22:14:06,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:14:06,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:14:06,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 110 transitions. [2024-10-31 22:14:06,867 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6432748538011696 [2024-10-31 22:14:06,867 INFO L175 Difference]: Start difference. First operand has 57 places, 56 transitions, 130 flow. Second operand 3 states and 110 transitions. [2024-10-31 22:14:06,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 58 transitions, 206 flow [2024-10-31 22:14:06,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 58 transitions, 204 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:14:06,870 INFO L231 Difference]: Finished difference. Result has 59 places, 57 transitions, 144 flow [2024-10-31 22:14:06,871 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=59, PETRI_TRANSITIONS=57} [2024-10-31 22:14:06,872 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 3 predicate places. [2024-10-31 22:14:06,872 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 57 transitions, 144 flow [2024-10-31 22:14:06,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2024-10-31 22:14:06,873 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:14:06,873 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:14:06,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:14:06,873 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-31 22:14:06,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:06,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1081183509, now seen corresponding path program 1 times [2024-10-31 22:14:06,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:06,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507345561] [2024-10-31 22:14:06,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:06,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:07,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:07,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:07,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507345561] [2024-10-31 22:14:07,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507345561] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:07,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:07,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:14:07,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081491983] [2024-10-31 22:14:07,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:07,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:14:07,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:07,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:14:07,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:14:07,116 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 57 [2024-10-31 22:14:07,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 57 transitions, 144 flow. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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) [2024-10-31 22:14:07,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:14:07,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 57 [2024-10-31 22:14:07,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:14:07,457 INFO L124 PetriNetUnfolderBase]: 303/706 cut-off events. [2024-10-31 22:14:07,457 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-10-31 22:14:07,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1251 conditions, 706 events. 303/706 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3724 event pairs, 224 based on Foata normal form. 4/599 useless extension candidates. Maximal degree in co-relation 1190. Up to 499 conditions per place. [2024-10-31 22:14:07,462 INFO L140 encePairwiseOnDemand]: 52/57 looper letters, 35 selfloop transitions, 3 changer transitions 0/58 dead transitions. [2024-10-31 22:14:07,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 58 transitions, 222 flow [2024-10-31 22:14:07,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:14:07,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:14:07,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 127 transitions. [2024-10-31 22:14:07,465 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5570175438596491 [2024-10-31 22:14:07,465 INFO L175 Difference]: Start difference. First operand has 59 places, 57 transitions, 144 flow. Second operand 4 states and 127 transitions. [2024-10-31 22:14:07,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 58 transitions, 222 flow [2024-10-31 22:14:07,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 58 transitions, 220 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:14:07,467 INFO L231 Difference]: Finished difference. Result has 63 places, 58 transitions, 160 flow [2024-10-31 22:14:07,468 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=160, PETRI_PLACES=63, PETRI_TRANSITIONS=58} [2024-10-31 22:14:07,468 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 7 predicate places. [2024-10-31 22:14:07,469 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 58 transitions, 160 flow [2024-10-31 22:14:07,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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) [2024-10-31 22:14:07,469 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:14:07,469 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:07,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:14:07,470 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-31 22:14:07,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:07,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1577657604, now seen corresponding path program 1 times [2024-10-31 22:14:07,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:07,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218064626] [2024-10-31 22:14:07,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:07,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:07,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:07,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:07,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:07,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218064626] [2024-10-31 22:14:07,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218064626] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:07,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081855356] [2024-10-31 22:14:07,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:07,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:07,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:07,740 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:07,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:14:07,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:07,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:14:07,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:07,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:07,973 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:14:08,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:08,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081855356] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:14:08,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:14:08,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-31 22:14:08,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260472839] [2024-10-31 22:14:08,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:14:08,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:14:08,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:08,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:14:08,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:14:08,064 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 57 [2024-10-31 22:14:08,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 58 transitions, 160 flow. Second operand has 10 states, 10 states have (on average 22.5) internal successors, (225), 10 states have internal predecessors, (225), 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) [2024-10-31 22:14:08,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:14:08,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 57 [2024-10-31 22:14:08,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:14:08,940 INFO L124 PetriNetUnfolderBase]: 303/722 cut-off events. [2024-10-31 22:14:08,940 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-10-31 22:14:08,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1309 conditions, 722 events. 303/722 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3828 event pairs, 224 based on Foata normal form. 6/617 useless extension candidates. Maximal degree in co-relation 1209. Up to 489 conditions per place. [2024-10-31 22:14:08,947 INFO L140 encePairwiseOnDemand]: 50/57 looper letters, 38 selfloop transitions, 9 changer transitions 0/66 dead transitions. [2024-10-31 22:14:08,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 66 transitions, 284 flow [2024-10-31 22:14:08,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:14:08,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-31 22:14:08,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 238 transitions. [2024-10-31 22:14:08,953 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46393762183235865 [2024-10-31 22:14:08,954 INFO L175 Difference]: Start difference. First operand has 63 places, 58 transitions, 160 flow. Second operand 9 states and 238 transitions. [2024-10-31 22:14:08,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 66 transitions, 284 flow [2024-10-31 22:14:08,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 66 transitions, 280 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:14:08,959 INFO L231 Difference]: Finished difference. Result has 73 places, 62 transitions, 210 flow [2024-10-31 22:14:08,960 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=210, PETRI_PLACES=73, PETRI_TRANSITIONS=62} [2024-10-31 22:14:08,961 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 17 predicate places. [2024-10-31 22:14:08,961 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 62 transitions, 210 flow [2024-10-31 22:14:08,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.5) internal successors, (225), 10 states have internal predecessors, (225), 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) [2024-10-31 22:14:08,963 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:14:08,963 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-10-31 22:14:08,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:14:09,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:09,164 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-31 22:14:09,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:09,165 INFO L85 PathProgramCache]: Analyzing trace with hash -5503657, now seen corresponding path program 1 times [2024-10-31 22:14:09,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:09,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455005631] [2024-10-31 22:14:09,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:09,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:09,481 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:09,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:09,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455005631] [2024-10-31 22:14:09,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455005631] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:09,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464677203] [2024-10-31 22:14:09,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:09,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:09,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:09,487 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:09,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:14:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:09,730 INFO L255 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:14:09,734 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:09,793 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:09,793 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:14:09,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464677203] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:09,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:14:09,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-31 22:14:09,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946533594] [2024-10-31 22:14:09,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:09,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:14:09,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:09,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:14:09,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:14:09,839 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 57 [2024-10-31 22:14:09,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 62 transitions, 210 flow. Second operand has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:09,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:14:09,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 57 [2024-10-31 22:14:09,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:14:10,317 INFO L124 PetriNetUnfolderBase]: 303/718 cut-off events. [2024-10-31 22:14:10,317 INFO L125 PetriNetUnfolderBase]: For 94/94 co-relation queries the response was YES. [2024-10-31 22:14:10,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1326 conditions, 718 events. 303/718 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3789 event pairs, 224 based on Foata normal form. 4/611 useless extension candidates. Maximal degree in co-relation 1226. Up to 487 conditions per place. [2024-10-31 22:14:10,323 INFO L140 encePairwiseOnDemand]: 52/57 looper letters, 31 selfloop transitions, 8 changer transitions 0/60 dead transitions. [2024-10-31 22:14:10,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 60 transitions, 274 flow [2024-10-31 22:14:10,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:14:10,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:14:10,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 169 transitions. [2024-10-31 22:14:10,325 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49415204678362573 [2024-10-31 22:14:10,326 INFO L175 Difference]: Start difference. First operand has 73 places, 62 transitions, 210 flow. Second operand 6 states and 169 transitions. [2024-10-31 22:14:10,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 60 transitions, 274 flow [2024-10-31 22:14:10,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 60 transitions, 266 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-10-31 22:14:10,329 INFO L231 Difference]: Finished difference. Result has 73 places, 60 transitions, 204 flow [2024-10-31 22:14:10,330 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=204, PETRI_PLACES=73, PETRI_TRANSITIONS=60} [2024-10-31 22:14:10,331 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 17 predicate places. [2024-10-31 22:14:10,331 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 60 transitions, 204 flow [2024-10-31 22:14:10,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:10,332 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:14:10,332 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1] [2024-10-31 22:14:10,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 22:14:10,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:10,534 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-31 22:14:10,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:10,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1960986382, now seen corresponding path program 1 times [2024-10-31 22:14:10,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:10,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683248454] [2024-10-31 22:14:10,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:10,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:10,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:10,773 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-31 22:14:10,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:10,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683248454] [2024-10-31 22:14:10,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683248454] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:10,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:10,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:14:10,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399103956] [2024-10-31 22:14:10,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:10,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:14:10,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:10,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:14:10,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:14:10,825 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 57 [2024-10-31 22:14:10,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 60 transitions, 204 flow. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2024-10-31 22:14:10,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:14:10,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 57 [2024-10-31 22:14:10,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:14:11,083 INFO L124 PetriNetUnfolderBase]: 303/716 cut-off events. [2024-10-31 22:14:11,084 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2024-10-31 22:14:11,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1331 conditions, 716 events. 303/716 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3791 event pairs, 224 based on Foata normal form. 2/607 useless extension candidates. Maximal degree in co-relation 1232. Up to 493 conditions per place. [2024-10-31 22:14:11,089 INFO L140 encePairwiseOnDemand]: 52/57 looper letters, 30 selfloop transitions, 9 changer transitions 0/60 dead transitions. [2024-10-31 22:14:11,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 60 transitions, 280 flow [2024-10-31 22:14:11,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:14:11,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:14:11,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 126 transitions. [2024-10-31 22:14:11,091 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5526315789473685 [2024-10-31 22:14:11,091 INFO L175 Difference]: Start difference. First operand has 73 places, 60 transitions, 204 flow. Second operand 4 states and 126 transitions. [2024-10-31 22:14:11,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 60 transitions, 280 flow [2024-10-31 22:14:11,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 60 transitions, 264 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-10-31 22:14:11,096 INFO L231 Difference]: Finished difference. Result has 70 places, 60 transitions, 212 flow [2024-10-31 22:14:11,097 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=212, PETRI_PLACES=70, PETRI_TRANSITIONS=60} [2024-10-31 22:14:11,098 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 14 predicate places. [2024-10-31 22:14:11,098 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 60 transitions, 212 flow [2024-10-31 22:14:11,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2024-10-31 22:14:11,098 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:14:11,099 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1] [2024-10-31 22:14:11,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:14:11,100 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-31 22:14:11,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:11,100 INFO L85 PathProgramCache]: Analyzing trace with hash 982747004, now seen corresponding path program 2 times [2024-10-31 22:14:11,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:11,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438271319] [2024-10-31 22:14:11,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:11,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:11,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:11,365 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 22:14:11,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:11,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438271319] [2024-10-31 22:14:11,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438271319] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:11,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:11,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:14:11,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351452270] [2024-10-31 22:14:11,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:11,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:14:11,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:11,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:14:11,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:14:11,383 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 57 [2024-10-31 22:14:11,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 60 transitions, 212 flow. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 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) [2024-10-31 22:14:11,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:14:11,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 57 [2024-10-31 22:14:11,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:14:11,850 INFO L124 PetriNetUnfolderBase]: 303/714 cut-off events. [2024-10-31 22:14:11,850 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2024-10-31 22:14:11,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1338 conditions, 714 events. 303/714 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3788 event pairs, 224 based on Foata normal form. 2/607 useless extension candidates. Maximal degree in co-relation 1214. Up to 498 conditions per place. [2024-10-31 22:14:11,856 INFO L140 encePairwiseOnDemand]: 52/57 looper letters, 45 selfloop transitions, 3 changer transitions 0/68 dead transitions. [2024-10-31 22:14:11,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 68 transitions, 380 flow [2024-10-31 22:14:11,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:14:11,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:14:11,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2024-10-31 22:14:11,858 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5701754385964912 [2024-10-31 22:14:11,858 INFO L175 Difference]: Start difference. First operand has 70 places, 60 transitions, 212 flow. Second operand 4 states and 130 transitions. [2024-10-31 22:14:11,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 68 transitions, 380 flow [2024-10-31 22:14:11,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 68 transitions, 356 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-31 22:14:11,867 INFO L231 Difference]: Finished difference. Result has 73 places, 61 transitions, 223 flow [2024-10-31 22:14:11,868 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=223, PETRI_PLACES=73, PETRI_TRANSITIONS=61} [2024-10-31 22:14:11,871 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 17 predicate places. [2024-10-31 22:14:11,872 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 61 transitions, 223 flow [2024-10-31 22:14:11,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 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) [2024-10-31 22:14:11,872 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:14:11,872 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1] [2024-10-31 22:14:11,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:14:11,873 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-31 22:14:11,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:11,873 INFO L85 PathProgramCache]: Analyzing trace with hash 363156185, now seen corresponding path program 1 times [2024-10-31 22:14:11,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:11,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968990622] [2024-10-31 22:14:11,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:11,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:12,362 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:14:12,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:12,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968990622] [2024-10-31 22:14:12,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968990622] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:12,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458129907] [2024-10-31 22:14:12,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:12,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:12,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:12,366 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:12,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:14:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:12,746 INFO L255 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:14:12,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:12,821 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:14:12,822 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:14:12,961 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:14:12,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458129907] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:14:12,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:14:12,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-31 22:14:12,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195141458] [2024-10-31 22:14:12,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:14:12,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-31 22:14:12,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:12,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-31 22:14:12,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-31 22:14:13,055 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 57 [2024-10-31 22:14:13,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 61 transitions, 223 flow. Second operand has 18 states, 18 states have (on average 22.833333333333332) internal successors, (411), 18 states have internal predecessors, (411), 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) [2024-10-31 22:14:13,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:14:13,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 57 [2024-10-31 22:14:13,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:14:14,276 INFO L124 PetriNetUnfolderBase]: 303/762 cut-off events. [2024-10-31 22:14:14,276 INFO L125 PetriNetUnfolderBase]: For 249/249 co-relation queries the response was YES. [2024-10-31 22:14:14,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1507 conditions, 762 events. 303/762 cut-off events. For 249/249 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3823 event pairs, 224 based on Foata normal form. 8/661 useless extension candidates. Maximal degree in co-relation 1355. Up to 489 conditions per place. [2024-10-31 22:14:14,282 INFO L140 encePairwiseOnDemand]: 52/57 looper letters, 50 selfloop transitions, 15 changer transitions 0/84 dead transitions. [2024-10-31 22:14:14,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 84 transitions, 515 flow [2024-10-31 22:14:14,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-31 22:14:14,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-31 22:14:14,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 382 transitions. [2024-10-31 22:14:14,285 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44678362573099417 [2024-10-31 22:14:14,285 INFO L175 Difference]: Start difference. First operand has 73 places, 61 transitions, 223 flow. Second operand 15 states and 382 transitions. [2024-10-31 22:14:14,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 84 transitions, 515 flow [2024-10-31 22:14:14,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 84 transitions, 511 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:14:14,292 INFO L231 Difference]: Finished difference. Result has 90 places, 70 transitions, 353 flow [2024-10-31 22:14:14,292 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=353, PETRI_PLACES=90, PETRI_TRANSITIONS=70} [2024-10-31 22:14:14,294 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 34 predicate places. [2024-10-31 22:14:14,295 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 70 transitions, 353 flow [2024-10-31 22:14:14,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 22.833333333333332) internal successors, (411), 18 states have internal predecessors, (411), 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) [2024-10-31 22:14:14,296 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:14:14,296 INFO L204 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1] [2024-10-31 22:14:14,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:14,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:14,498 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-31 22:14:14,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:14,498 INFO L85 PathProgramCache]: Analyzing trace with hash 50657753, now seen corresponding path program 2 times [2024-10-31 22:14:14,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:14,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538015460] [2024-10-31 22:14:14,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:14,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:15,881 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:14:15,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:15,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538015460] [2024-10-31 22:14:15,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538015460] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:15,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263840997] [2024-10-31 22:14:15,884 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:14:15,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:15,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:15,886 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:15,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:14:16,469 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:14:16,469 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:14:16,477 INFO L255 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-31 22:14:16,479 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:16,597 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:14:16,597 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:14:17,041 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:14:17,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263840997] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:14:17,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:14:17,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-10-31 22:14:17,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075666319] [2024-10-31 22:14:17,043 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:14:17,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-31 22:14:17,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:17,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-31 22:14:17,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-10-31 22:14:17,256 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 57 [2024-10-31 22:14:17,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 70 transitions, 353 flow. Second operand has 34 states, 34 states have (on average 22.676470588235293) internal successors, (771), 34 states have internal predecessors, (771), 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) [2024-10-31 22:14:17,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:14:17,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 57 [2024-10-31 22:14:17,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:14:19,932 INFO L124 PetriNetUnfolderBase]: 303/858 cut-off events. [2024-10-31 22:14:19,932 INFO L125 PetriNetUnfolderBase]: For 1164/1164 co-relation queries the response was YES. [2024-10-31 22:14:19,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1985 conditions, 858 events. 303/858 cut-off events. For 1164/1164 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3862 event pairs, 224 based on Foata normal form. 16/765 useless extension candidates. Maximal degree in co-relation 1621. Up to 489 conditions per place. [2024-10-31 22:14:19,939 INFO L140 encePairwiseOnDemand]: 52/57 looper letters, 74 selfloop transitions, 31 changer transitions 0/124 dead transitions. [2024-10-31 22:14:19,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 124 transitions, 1027 flow [2024-10-31 22:14:19,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-31 22:14:19,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-10-31 22:14:19,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 762 transitions. [2024-10-31 22:14:19,943 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4312393887945671 [2024-10-31 22:14:19,943 INFO L175 Difference]: Start difference. First operand has 90 places, 70 transitions, 353 flow. Second operand 31 states and 762 transitions. [2024-10-31 22:14:19,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 124 transitions, 1027 flow [2024-10-31 22:14:19,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 124 transitions, 993 flow, removed 13 selfloop flow, removed 4 redundant places. [2024-10-31 22:14:19,952 INFO L231 Difference]: Finished difference. Result has 125 places, 87 transitions, 625 flow [2024-10-31 22:14:19,953 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=625, PETRI_PLACES=125, PETRI_TRANSITIONS=87} [2024-10-31 22:14:19,954 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 69 predicate places. [2024-10-31 22:14:19,954 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 87 transitions, 625 flow [2024-10-31 22:14:19,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 22.676470588235293) internal successors, (771), 34 states have internal predecessors, (771), 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) [2024-10-31 22:14:19,955 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:14:19,955 INFO L204 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1] [2024-10-31 22:14:20,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-31 22:14:20,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-10-31 22:14:20,156 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-31 22:14:20,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:20,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1317550119, now seen corresponding path program 3 times [2024-10-31 22:14:20,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:20,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370167702] [2024-10-31 22:14:20,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:20,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:23,257 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:14:23,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:23,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370167702] [2024-10-31 22:14:23,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370167702] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:23,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871355888] [2024-10-31 22:14:23,261 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-31 22:14:23,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:23,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:23,263 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:23,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-31 22:14:23,914 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-31 22:14:23,914 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:14:23,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:14:23,922 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:24,264 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-10-31 22:14:24,264 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:14:24,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871355888] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:24,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:14:24,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [33] total 39 [2024-10-31 22:14:24,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091170868] [2024-10-31 22:14:24,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:24,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:14:24,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:24,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:14:24,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=1174, Unknown=0, NotChecked=0, Total=1482 [2024-10-31 22:14:24,378 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 57 [2024-10-31 22:14:24,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 87 transitions, 625 flow. Second operand has 8 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 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) [2024-10-31 22:14:24,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:14:24,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 57 [2024-10-31 22:14:24,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:14:25,409 INFO L124 PetriNetUnfolderBase]: 303/843 cut-off events. [2024-10-31 22:14:25,409 INFO L125 PetriNetUnfolderBase]: For 1372/1372 co-relation queries the response was YES. [2024-10-31 22:14:25,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1987 conditions, 843 events. 303/843 cut-off events. For 1372/1372 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3772 event pairs, 224 based on Foata normal form. 15/749 useless extension candidates. Maximal degree in co-relation 1590. Up to 482 conditions per place. [2024-10-31 22:14:25,417 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 57 selfloop transitions, 37 changer transitions 0/116 dead transitions. [2024-10-31 22:14:25,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 116 transitions, 1182 flow [2024-10-31 22:14:25,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:14:25,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-31 22:14:25,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 242 transitions. [2024-10-31 22:14:25,420 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4245614035087719 [2024-10-31 22:14:25,420 INFO L175 Difference]: Start difference. First operand has 125 places, 87 transitions, 625 flow. Second operand 10 states and 242 transitions. [2024-10-31 22:14:25,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 116 transitions, 1182 flow [2024-10-31 22:14:25,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 116 transitions, 1130 flow, removed 2 selfloop flow, removed 12 redundant places. [2024-10-31 22:14:25,435 INFO L231 Difference]: Finished difference. Result has 125 places, 116 transitions, 1144 flow [2024-10-31 22:14:25,436 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=589, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1144, PETRI_PLACES=125, PETRI_TRANSITIONS=116} [2024-10-31 22:14:25,436 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 69 predicate places. [2024-10-31 22:14:25,437 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 116 transitions, 1144 flow [2024-10-31 22:14:25,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 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) [2024-10-31 22:14:25,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:14:25,438 INFO L204 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:25,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-31 22:14:25,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-31 22:14:25,642 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-31 22:14:25,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:25,643 INFO L85 PathProgramCache]: Analyzing trace with hash 263414645, now seen corresponding path program 1 times [2024-10-31 22:14:25,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:25,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165397400] [2024-10-31 22:14:25,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:25,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:26,605 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-10-31 22:14:26,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:26,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165397400] [2024-10-31 22:14:26,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165397400] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:26,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318572968] [2024-10-31 22:14:26,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:26,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:26,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:26,610 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:26,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6ffbd8-a46d-44eb-8d40-da464ad83c06/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-31 22:14:27,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:27,592 INFO L255 TraceCheckSpWp]: Trace formula consists of 1678 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-31 22:14:27,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:28,220 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 1 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:28,220 INFO L311 TraceCheckSpWp]: Computing backward predicates...