./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b034d85232772d264d33ccb960d3ce3e7bf57df858fd0c6fd0b22127388c3f9a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:33:34,352 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:33:34,429 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 23:33:34,438 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:33:34,439 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:33:34,478 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:33:34,478 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:33:34,479 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:33:34,479 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:33:34,479 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:33:34,480 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:33:34,480 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:33:34,481 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:33:34,481 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:33:34,482 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:33:34,482 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:33:34,482 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:33:34,482 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:33:34,483 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:33:34,483 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:33:34,483 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:33:34,483 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:33:34,483 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:33:34,483 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:33:34,483 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 23:33:34,483 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:33:34,483 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:33:34,483 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:33:34,484 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:33:34,484 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:33:34,484 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:33:34,484 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:33:34,484 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:33:34,484 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:33:34,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:33:34,485 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:33:34,485 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:33:34,485 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:33:34,485 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:33:34,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:33:34,485 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:33:34,485 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:33:34,486 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:33:34,486 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:33:34,486 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:33:34,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:33:34,486 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:33:34,486 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:33:34,486 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:33:34,486 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:33:34,486 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b034d85232772d264d33ccb960d3ce3e7bf57df858fd0c6fd0b22127388c3f9a [2024-11-27 23:33:34,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:33:34,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:33:34,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:33:34,827 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:33:34,828 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:33:34,830 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c [2024-11-27 23:33:37,947 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/data/aec3bec99/6f8ca76fb72242d9b1a50fe85c732b20/FLAG76ad7eb3f [2024-11-27 23:33:38,258 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:33:38,264 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c [2024-11-27 23:33:38,280 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/data/aec3bec99/6f8ca76fb72242d9b1a50fe85c732b20/FLAG76ad7eb3f [2024-11-27 23:33:38,306 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/data/aec3bec99/6f8ca76fb72242d9b1a50fe85c732b20 [2024-11-27 23:33:38,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:33:38,312 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:33:38,314 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:33:38,314 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:33:38,319 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:33:38,320 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:33:38" (1/1) ... [2024-11-27 23:33:38,321 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e4c59c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:38, skipping insertion in model container [2024-11-27 23:33:38,321 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:33:38" (1/1) ... [2024-11-27 23:33:38,343 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:33:38,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:33:38,608 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:33:38,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:33:38,673 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:33:38,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:38 WrapperNode [2024-11-27 23:33:38,674 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:33:38,675 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:33:38,675 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:33:38,675 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:33:38,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:38" (1/1) ... [2024-11-27 23:33:38,699 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:38" (1/1) ... [2024-11-27 23:33:38,739 INFO L138 Inliner]: procedures = 23, calls = 26, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 177 [2024-11-27 23:33:38,739 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:33:38,743 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:33:38,743 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:33:38,743 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:33:38,754 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:38" (1/1) ... [2024-11-27 23:33:38,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:38" (1/1) ... [2024-11-27 23:33:38,757 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:38" (1/1) ... [2024-11-27 23:33:38,784 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-11-27 23:33:38,784 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:38" (1/1) ... [2024-11-27 23:33:38,784 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:38" (1/1) ... [2024-11-27 23:33:38,801 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:38" (1/1) ... [2024-11-27 23:33:38,803 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:38" (1/1) ... [2024-11-27 23:33:38,812 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:38" (1/1) ... [2024-11-27 23:33:38,817 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:38" (1/1) ... [2024-11-27 23:33:38,819 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:38" (1/1) ... [2024-11-27 23:33:38,821 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:33:38,825 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:33:38,825 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:33:38,825 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:33:38,826 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:38" (1/1) ... [2024-11-27 23:33:38,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:33:38,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:38,872 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:33:38,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:33:38,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:33:38,905 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-27 23:33:38,905 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-27 23:33:38,905 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-27 23:33:38,905 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-27 23:33:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:33:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 23:33:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 23:33:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 23:33:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 23:33:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:33:38,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:33:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 23:33:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 23:33:38,908 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 23:33:39,036 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:33:39,038 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:33:39,516 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 23:33:39,517 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:33:39,884 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:33:39,885 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-27 23:33:39,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:33:39 BoogieIcfgContainer [2024-11-27 23:33:39,886 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:33:39,889 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:33:39,890 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:33:39,896 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:33:39,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:33:38" (1/3) ... [2024-11-27 23:33:39,897 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36afe28d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:33:39, skipping insertion in model container [2024-11-27 23:33:39,897 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:38" (2/3) ... [2024-11-27 23:33:39,899 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36afe28d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:33:39, skipping insertion in model container [2024-11-27 23:33:39,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:33:39" (3/3) ... [2024-11-27 23:33:39,901 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2024-11-27 23:33:39,918 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:33:39,920 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-chromosome-opt-symm.wvr.c that has 3 procedures, 40 locations, 1 initial locations, 4 loop locations, and 10 error locations. [2024-11-27 23:33:39,920 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 23:33:39,999 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-27 23:33:40,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 45 transitions, 104 flow [2024-11-27 23:33:40,093 INFO L124 PetriNetUnfolderBase]: 6/43 cut-off events. [2024-11-27 23:33:40,095 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-27 23:33:40,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 43 events. 6/43 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 91 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2024-11-27 23:33:40,101 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 45 transitions, 104 flow [2024-11-27 23:33:40,104 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 42 transitions, 96 flow [2024-11-27 23:33:40,118 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:33:40,131 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;@40e43cbb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:33:40,131 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-27 23:33:40,135 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 23:33:40,136 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-27 23:33:40,136 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:33:40,136 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:40,137 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-27 23:33:40,137 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 23:33:40,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:40,143 INFO L85 PathProgramCache]: Analyzing trace with hash 561929, now seen corresponding path program 1 times [2024-11-27 23:33:40,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:40,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644168172] [2024-11-27 23:33:40,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:40,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:40,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:33:40,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:40,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644168172] [2024-11-27 23:33:40,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644168172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:40,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:40,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:33:40,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166636089] [2024-11-27 23:33:40,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:40,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:33:40,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:40,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:33:40,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:33:40,558 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 45 [2024-11-27 23:33:40,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 42 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:40,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:40,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 45 [2024-11-27 23:33:40,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:40,839 INFO L124 PetriNetUnfolderBase]: 158/323 cut-off events. [2024-11-27 23:33:40,840 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-27 23:33:40,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 323 events. 158/323 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1278 event pairs, 100 based on Foata normal form. 2/242 useless extension candidates. Maximal degree in co-relation 526. Up to 258 conditions per place. [2024-11-27 23:33:40,848 INFO L140 encePairwiseOnDemand]: 34/45 looper letters, 30 selfloop transitions, 7 changer transitions 0/48 dead transitions. [2024-11-27 23:33:40,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 48 transitions, 182 flow [2024-11-27 23:33:40,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:33:40,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:33:40,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 93 transitions. [2024-11-27 23:33:40,868 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5166666666666667 [2024-11-27 23:33:40,870 INFO L175 Difference]: Start difference. First operand has 43 places, 42 transitions, 96 flow. Second operand 4 states and 93 transitions. [2024-11-27 23:33:40,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 48 transitions, 182 flow [2024-11-27 23:33:40,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 48 transitions, 174 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-27 23:33:40,884 INFO L231 Difference]: Finished difference. Result has 45 places, 48 transitions, 148 flow [2024-11-27 23:33:40,887 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=45, PETRI_TRANSITIONS=48} [2024-11-27 23:33:40,895 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 2 predicate places. [2024-11-27 23:33:40,895 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 48 transitions, 148 flow [2024-11-27 23:33:40,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:40,895 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:40,896 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-27 23:33:40,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:33:40,896 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 23:33:40,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:40,899 INFO L85 PathProgramCache]: Analyzing trace with hash -438884260, now seen corresponding path program 1 times [2024-11-27 23:33:40,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:40,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598313939] [2024-11-27 23:33:40,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:40,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:40,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:41,109 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:33:41,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:41,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598313939] [2024-11-27 23:33:41,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598313939] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:41,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796014141] [2024-11-27 23:33:41,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:41,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:41,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:41,112 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:41,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:33:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:41,218 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:33:41,241 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:41,305 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:33:41,306 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:33:41,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796014141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:41,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:33:41,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-27 23:33:41,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042019231] [2024-11-27 23:33:41,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:41,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:33:41,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:41,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:33:41,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:33:41,341 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 45 [2024-11-27 23:33:41,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 48 transitions, 148 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:41,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:41,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 45 [2024-11-27 23:33:41,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:41,619 INFO L124 PetriNetUnfolderBase]: 158/321 cut-off events. [2024-11-27 23:33:41,619 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-11-27 23:33:41,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 615 conditions, 321 events. 158/321 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1270 event pairs, 100 based on Foata normal form. 2/243 useless extension candidates. Maximal degree in co-relation 565. Up to 248 conditions per place. [2024-11-27 23:33:41,622 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 23 selfloop transitions, 12 changer transitions 0/46 dead transitions. [2024-11-27 23:33:41,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 46 transitions, 210 flow [2024-11-27 23:33:41,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:33:41,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 23:33:41,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 115 transitions. [2024-11-27 23:33:41,624 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42592592592592593 [2024-11-27 23:33:41,624 INFO L175 Difference]: Start difference. First operand has 45 places, 48 transitions, 148 flow. Second operand 6 states and 115 transitions. [2024-11-27 23:33:41,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 46 transitions, 210 flow [2024-11-27 23:33:41,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 46 transitions, 210 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 23:33:41,627 INFO L231 Difference]: Finished difference. Result has 48 places, 46 transitions, 164 flow [2024-11-27 23:33:41,627 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=164, PETRI_PLACES=48, PETRI_TRANSITIONS=46} [2024-11-27 23:33:41,628 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 5 predicate places. [2024-11-27 23:33:41,628 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 46 transitions, 164 flow [2024-11-27 23:33:41,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:41,628 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:41,628 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-27 23:33:41,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 23:33:41,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:41,829 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 23:33:41,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:41,830 INFO L85 PathProgramCache]: Analyzing trace with hash -720509610, now seen corresponding path program 1 times [2024-11-27 23:33:41,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:41,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227390214] [2024-11-27 23:33:41,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:41,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:41,991 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:33:41,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:41,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227390214] [2024-11-27 23:33:41,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227390214] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:41,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993166132] [2024-11-27 23:33:41,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:41,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:41,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:41,994 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:41,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:33:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:42,070 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:33:42,071 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:42,104 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:33:42,104 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:33:42,162 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:33:42,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993166132] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:33:42,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:33:42,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-27 23:33:42,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350053410] [2024-11-27 23:33:42,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:33:42,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:33:42,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:42,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:33:42,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:33:42,207 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 45 [2024-11-27 23:33:42,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 46 transitions, 164 flow. Second operand has 12 states, 12 states have (on average 14.083333333333334) internal successors, (169), 12 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:42,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:42,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 45 [2024-11-27 23:33:42,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:42,475 INFO L124 PetriNetUnfolderBase]: 164/345 cut-off events. [2024-11-27 23:33:42,475 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2024-11-27 23:33:42,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 709 conditions, 345 events. 164/345 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1432 event pairs, 100 based on Foata normal form. 6/270 useless extension candidates. Maximal degree in co-relation 567. Up to 259 conditions per place. [2024-11-27 23:33:42,479 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 28 selfloop transitions, 25 changer transitions 0/64 dead transitions. [2024-11-27 23:33:42,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 64 transitions, 384 flow [2024-11-27 23:33:42,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:33:42,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-27 23:33:42,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 189 transitions. [2024-11-27 23:33:42,483 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42 [2024-11-27 23:33:42,483 INFO L175 Difference]: Start difference. First operand has 48 places, 46 transitions, 164 flow. Second operand 10 states and 189 transitions. [2024-11-27 23:33:42,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 64 transitions, 384 flow [2024-11-27 23:33:42,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 64 transitions, 326 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-11-27 23:33:42,490 INFO L231 Difference]: Finished difference. Result has 55 places, 64 transitions, 304 flow [2024-11-27 23:33:42,490 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=304, PETRI_PLACES=55, PETRI_TRANSITIONS=64} [2024-11-27 23:33:42,492 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 12 predicate places. [2024-11-27 23:33:42,492 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 64 transitions, 304 flow [2024-11-27 23:33:42,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.083333333333334) internal successors, (169), 12 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:42,492 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:42,492 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:42,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 23:33:42,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:42,698 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 23:33:42,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:42,698 INFO L85 PathProgramCache]: Analyzing trace with hash -491354178, now seen corresponding path program 1 times [2024-11-27 23:33:42,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:42,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415913407] [2024-11-27 23:33:42,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:42,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:42,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:33:42,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:42,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415913407] [2024-11-27 23:33:42,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415913407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:42,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:42,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:33:42,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594098490] [2024-11-27 23:33:42,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:42,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:33:42,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:42,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:33:42,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:33:42,875 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2024-11-27 23:33:42,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 64 transitions, 304 flow. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:42,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:42,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2024-11-27 23:33:42,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:43,124 INFO L124 PetriNetUnfolderBase]: 339/614 cut-off events. [2024-11-27 23:33:43,124 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-11-27 23:33:43,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1276 conditions, 614 events. 339/614 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2550 event pairs, 136 based on Foata normal form. 14/494 useless extension candidates. Maximal degree in co-relation 1209. Up to 349 conditions per place. [2024-11-27 23:33:43,131 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 78 selfloop transitions, 3 changer transitions 0/92 dead transitions. [2024-11-27 23:33:43,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 92 transitions, 526 flow [2024-11-27 23:33:43,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:33:43,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:33:43,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 119 transitions. [2024-11-27 23:33:43,133 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6611111111111111 [2024-11-27 23:33:43,133 INFO L175 Difference]: Start difference. First operand has 55 places, 64 transitions, 304 flow. Second operand 4 states and 119 transitions. [2024-11-27 23:33:43,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 92 transitions, 526 flow [2024-11-27 23:33:43,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 92 transitions, 502 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-27 23:33:43,139 INFO L231 Difference]: Finished difference. Result has 58 places, 66 transitions, 302 flow [2024-11-27 23:33:43,139 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=302, PETRI_PLACES=58, PETRI_TRANSITIONS=66} [2024-11-27 23:33:43,140 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 15 predicate places. [2024-11-27 23:33:43,140 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 66 transitions, 302 flow [2024-11-27 23:33:43,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:43,141 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:43,141 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:43,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:33:43,141 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 23:33:43,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:43,142 INFO L85 PathProgramCache]: Analyzing trace with hash 218328694, now seen corresponding path program 1 times [2024-11-27 23:33:43,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:43,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446927180] [2024-11-27 23:33:43,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:43,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:43,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:33:43,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:43,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446927180] [2024-11-27 23:33:43,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446927180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:43,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:43,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:33:43,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950159729] [2024-11-27 23:33:43,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:43,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:33:43,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:43,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:33:43,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:33:43,315 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2024-11-27 23:33:43,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 66 transitions, 302 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:43,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:43,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2024-11-27 23:33:43,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:43,669 INFO L124 PetriNetUnfolderBase]: 592/1047 cut-off events. [2024-11-27 23:33:43,670 INFO L125 PetriNetUnfolderBase]: For 309/337 co-relation queries the response was YES. [2024-11-27 23:33:43,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2300 conditions, 1047 events. 592/1047 cut-off events. For 309/337 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4690 event pairs, 261 based on Foata normal form. 24/889 useless extension candidates. Maximal degree in co-relation 2233. Up to 611 conditions per place. [2024-11-27 23:33:43,681 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 81 selfloop transitions, 3 changer transitions 0/95 dead transitions. [2024-11-27 23:33:43,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 95 transitions, 559 flow [2024-11-27 23:33:43,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:33:43,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:33:43,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2024-11-27 23:33:43,683 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6444444444444445 [2024-11-27 23:33:43,683 INFO L175 Difference]: Start difference. First operand has 58 places, 66 transitions, 302 flow. Second operand 4 states and 116 transitions. [2024-11-27 23:33:43,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 95 transitions, 559 flow [2024-11-27 23:33:43,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 95 transitions, 553 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:33:43,693 INFO L231 Difference]: Finished difference. Result has 62 places, 68 transitions, 322 flow [2024-11-27 23:33:43,693 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=322, PETRI_PLACES=62, PETRI_TRANSITIONS=68} [2024-11-27 23:33:43,695 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 19 predicate places. [2024-11-27 23:33:43,696 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 68 transitions, 322 flow [2024-11-27 23:33:43,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:43,697 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:43,697 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:43,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:33:43,698 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 23:33:43,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:43,699 INFO L85 PathProgramCache]: Analyzing trace with hash 295688826, now seen corresponding path program 1 times [2024-11-27 23:33:43,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:43,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917869886] [2024-11-27 23:33:43,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:43,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:43,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:43,865 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 23:33:43,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:43,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917869886] [2024-11-27 23:33:43,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917869886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:43,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:43,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:33:43,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866798085] [2024-11-27 23:33:43,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:43,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:33:43,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:43,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:33:43,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:33:43,868 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2024-11-27 23:33:43,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 68 transitions, 322 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:43,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:43,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2024-11-27 23:33:43,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:44,118 INFO L124 PetriNetUnfolderBase]: 512/1008 cut-off events. [2024-11-27 23:33:44,119 INFO L125 PetriNetUnfolderBase]: For 376/378 co-relation queries the response was YES. [2024-11-27 23:33:44,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2329 conditions, 1008 events. 512/1008 cut-off events. For 376/378 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4894 event pairs, 360 based on Foata normal form. 2/906 useless extension candidates. Maximal degree in co-relation 2260. Up to 817 conditions per place. [2024-11-27 23:33:44,128 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 46 selfloop transitions, 7 changer transitions 0/66 dead transitions. [2024-11-27 23:33:44,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 66 transitions, 419 flow [2024-11-27 23:33:44,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:33:44,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:33:44,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2024-11-27 23:33:44,130 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6222222222222222 [2024-11-27 23:33:44,130 INFO L175 Difference]: Start difference. First operand has 62 places, 68 transitions, 322 flow. Second operand 3 states and 84 transitions. [2024-11-27 23:33:44,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 66 transitions, 419 flow [2024-11-27 23:33:44,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 66 transitions, 410 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 23:33:44,137 INFO L231 Difference]: Finished difference. Result has 62 places, 66 transitions, 318 flow [2024-11-27 23:33:44,138 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=318, PETRI_PLACES=62, PETRI_TRANSITIONS=66} [2024-11-27 23:33:44,139 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 19 predicate places. [2024-11-27 23:33:44,140 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 66 transitions, 318 flow [2024-11-27 23:33:44,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:44,141 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:44,141 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-27 23:33:44,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:33:44,141 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 23:33:44,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:44,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1909769719, now seen corresponding path program 2 times [2024-11-27 23:33:44,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:44,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668259470] [2024-11-27 23:33:44,142 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:33:44,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:44,165 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:33:44,165 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:33:44,216 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-27 23:33:44,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:44,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668259470] [2024-11-27 23:33:44,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668259470] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:44,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639997789] [2024-11-27 23:33:44,217 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:33:44,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:44,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:44,221 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:44,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:33:44,301 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:33:44,302 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:33:44,302 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:33:44,304 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:44,347 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-27 23:33:44,348 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:33:44,416 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-27 23:33:44,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639997789] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:33:44,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:33:44,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2024-11-27 23:33:44,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856729356] [2024-11-27 23:33:44,416 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:33:44,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:33:44,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:44,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:33:44,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:33:44,437 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 45 [2024-11-27 23:33:44,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 66 transitions, 318 flow. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:44,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:44,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 45 [2024-11-27 23:33:44,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:44,718 INFO L124 PetriNetUnfolderBase]: 512/1006 cut-off events. [2024-11-27 23:33:44,718 INFO L125 PetriNetUnfolderBase]: For 340/342 co-relation queries the response was YES. [2024-11-27 23:33:44,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2297 conditions, 1006 events. 512/1006 cut-off events. For 340/342 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4861 event pairs, 360 based on Foata normal form. 2/905 useless extension candidates. Maximal degree in co-relation 2238. Up to 799 conditions per place. [2024-11-27 23:33:44,729 INFO L140 encePairwiseOnDemand]: 37/45 looper letters, 28 selfloop transitions, 25 changer transitions 0/64 dead transitions. [2024-11-27 23:33:44,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 64 transitions, 404 flow [2024-11-27 23:33:44,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:33:44,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:33:44,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 81 transitions. [2024-11-27 23:33:44,730 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45 [2024-11-27 23:33:44,731 INFO L175 Difference]: Start difference. First operand has 62 places, 66 transitions, 318 flow. Second operand 4 states and 81 transitions. [2024-11-27 23:33:44,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 64 transitions, 404 flow [2024-11-27 23:33:44,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 64 transitions, 370 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-11-27 23:33:44,735 INFO L231 Difference]: Finished difference. Result has 57 places, 64 transitions, 314 flow [2024-11-27 23:33:44,736 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=314, PETRI_PLACES=57, PETRI_TRANSITIONS=64} [2024-11-27 23:33:44,736 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 14 predicate places. [2024-11-27 23:33:44,737 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 64 transitions, 314 flow [2024-11-27 23:33:44,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:44,737 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:44,737 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:44,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 23:33:44,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:44,938 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 23:33:44,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:44,939 INFO L85 PathProgramCache]: Analyzing trace with hash 659205350, now seen corresponding path program 1 times [2024-11-27 23:33:44,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:44,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290282598] [2024-11-27 23:33:44,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:44,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:45,117 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 23:33:45,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:45,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290282598] [2024-11-27 23:33:45,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290282598] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:45,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053230147] [2024-11-27 23:33:45,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:45,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:45,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:45,123 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:45,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 23:33:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:45,228 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:33:45,229 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:45,310 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 23:33:45,310 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:33:45,384 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 23:33:45,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053230147] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:33:45,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:33:45,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-27 23:33:45,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159146611] [2024-11-27 23:33:45,384 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:33:45,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:33:45,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:45,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:33:45,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:33:45,433 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 45 [2024-11-27 23:33:45,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 64 transitions, 314 flow. Second operand has 11 states, 11 states have (on average 14.818181818181818) internal successors, (163), 11 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:45,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:45,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 45 [2024-11-27 23:33:45,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:45,719 INFO L124 PetriNetUnfolderBase]: 508/1002 cut-off events. [2024-11-27 23:33:45,720 INFO L125 PetriNetUnfolderBase]: For 338/340 co-relation queries the response was YES. [2024-11-27 23:33:45,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2287 conditions, 1002 events. 508/1002 cut-off events. For 338/340 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4759 event pairs, 360 based on Foata normal form. 2/900 useless extension candidates. Maximal degree in co-relation 2153. Up to 803 conditions per place. [2024-11-27 23:33:45,728 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 28 selfloop transitions, 21 changer transitions 0/60 dead transitions. [2024-11-27 23:33:45,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 60 transitions, 388 flow [2024-11-27 23:33:45,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:33:45,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-27 23:33:45,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 132 transitions. [2024-11-27 23:33:45,730 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.41904761904761906 [2024-11-27 23:33:45,730 INFO L175 Difference]: Start difference. First operand has 57 places, 64 transitions, 314 flow. Second operand 7 states and 132 transitions. [2024-11-27 23:33:45,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 60 transitions, 388 flow [2024-11-27 23:33:45,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 60 transitions, 342 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-27 23:33:45,733 INFO L231 Difference]: Finished difference. Result has 60 places, 60 transitions, 286 flow [2024-11-27 23:33:45,733 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=286, PETRI_PLACES=60, PETRI_TRANSITIONS=60} [2024-11-27 23:33:45,737 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 17 predicate places. [2024-11-27 23:33:45,737 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 60 transitions, 286 flow [2024-11-27 23:33:45,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.818181818181818) internal successors, (163), 11 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:45,738 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:45,738 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:45,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 23:33:45,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:45,939 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 23:33:45,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:45,939 INFO L85 PathProgramCache]: Analyzing trace with hash -567234010, now seen corresponding path program 2 times [2024-11-27 23:33:45,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:45,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384393938] [2024-11-27 23:33:45,939 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:33:45,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:45,976 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:33:45,976 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:33:46,092 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 23:33:46,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:46,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384393938] [2024-11-27 23:33:46,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384393938] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:46,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591426445] [2024-11-27 23:33:46,092 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:33:46,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:46,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:46,095 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:46,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 23:33:46,216 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:33:46,217 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:33:46,218 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 23:33:46,220 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:46,394 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-27 23:33:46,394 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:33:46,559 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-27 23:33:46,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591426445] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:33:46,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:33:46,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 20 [2024-11-27 23:33:46,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138666813] [2024-11-27 23:33:46,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:33:46,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-27 23:33:46,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:46,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-27 23:33:46,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2024-11-27 23:33:46,705 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2024-11-27 23:33:46,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 60 transitions, 286 flow. Second operand has 20 states, 20 states have (on average 13.0) internal successors, (260), 20 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:46,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:46,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2024-11-27 23:33:46,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:47,425 INFO L124 PetriNetUnfolderBase]: 545/960 cut-off events. [2024-11-27 23:33:47,425 INFO L125 PetriNetUnfolderBase]: For 324/364 co-relation queries the response was YES. [2024-11-27 23:33:47,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2258 conditions, 960 events. 545/960 cut-off events. For 324/364 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4113 event pairs, 10 based on Foata normal form. 26/857 useless extension candidates. Maximal degree in co-relation 2126. Up to 326 conditions per place. [2024-11-27 23:33:47,431 INFO L140 encePairwiseOnDemand]: 34/45 looper letters, 77 selfloop transitions, 27 changer transitions 0/113 dead transitions. [2024-11-27 23:33:47,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 113 transitions, 656 flow [2024-11-27 23:33:47,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 23:33:47,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-27 23:33:47,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 264 transitions. [2024-11-27 23:33:47,433 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39111111111111113 [2024-11-27 23:33:47,434 INFO L175 Difference]: Start difference. First operand has 60 places, 60 transitions, 286 flow. Second operand 15 states and 264 transitions. [2024-11-27 23:33:47,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 113 transitions, 656 flow [2024-11-27 23:33:47,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 113 transitions, 640 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-27 23:33:47,437 INFO L231 Difference]: Finished difference. Result has 71 places, 59 transitions, 343 flow [2024-11-27 23:33:47,437 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=343, PETRI_PLACES=71, PETRI_TRANSITIONS=59} [2024-11-27 23:33:47,438 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 28 predicate places. [2024-11-27 23:33:47,438 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 59 transitions, 343 flow [2024-11-27 23:33:47,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.0) internal successors, (260), 20 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:47,439 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:47,439 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:47,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 23:33:47,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:47,643 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 23:33:47,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:47,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1612674972, now seen corresponding path program 1 times [2024-11-27 23:33:47,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:47,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529674945] [2024-11-27 23:33:47,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:47,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:47,753 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-27 23:33:47,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:47,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529674945] [2024-11-27 23:33:47,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529674945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:47,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:47,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:33:47,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731388875] [2024-11-27 23:33:47,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:47,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:33:47,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:47,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:33:47,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:33:47,762 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2024-11-27 23:33:47,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 59 transitions, 343 flow. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 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) [2024-11-27 23:33:47,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:47,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2024-11-27 23:33:47,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:48,028 INFO L124 PetriNetUnfolderBase]: 573/1051 cut-off events. [2024-11-27 23:33:48,029 INFO L125 PetriNetUnfolderBase]: For 622/647 co-relation queries the response was YES. [2024-11-27 23:33:48,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2590 conditions, 1051 events. 573/1051 cut-off events. For 622/647 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4903 event pairs, 119 based on Foata normal form. 24/961 useless extension candidates. Maximal degree in co-relation 2434. Up to 517 conditions per place. [2024-11-27 23:33:48,034 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 72 selfloop transitions, 6 changer transitions 0/87 dead transitions. [2024-11-27 23:33:48,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 87 transitions, 581 flow [2024-11-27 23:33:48,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:33:48,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:33:48,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 113 transitions. [2024-11-27 23:33:48,036 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6277777777777778 [2024-11-27 23:33:48,036 INFO L175 Difference]: Start difference. First operand has 71 places, 59 transitions, 343 flow. Second operand 4 states and 113 transitions. [2024-11-27 23:33:48,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 87 transitions, 581 flow [2024-11-27 23:33:48,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 87 transitions, 537 flow, removed 2 selfloop flow, removed 12 redundant places. [2024-11-27 23:33:48,040 INFO L231 Difference]: Finished difference. Result has 62 places, 59 transitions, 315 flow [2024-11-27 23:33:48,040 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=315, PETRI_PLACES=62, PETRI_TRANSITIONS=59} [2024-11-27 23:33:48,041 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 19 predicate places. [2024-11-27 23:33:48,041 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 59 transitions, 315 flow [2024-11-27 23:33:48,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 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) [2024-11-27 23:33:48,041 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:48,041 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:48,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:33:48,042 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 23:33:48,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:48,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1676373405, now seen corresponding path program 1 times [2024-11-27 23:33:48,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:48,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518932051] [2024-11-27 23:33:48,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:48,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:48,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:48,251 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-27 23:33:48,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:48,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518932051] [2024-11-27 23:33:48,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518932051] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:48,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638634825] [2024-11-27 23:33:48,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:48,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:48,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:48,254 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:48,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 23:33:48,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:48,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:33:48,384 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:48,415 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-27 23:33:48,415 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:33:48,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638634825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:48,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:33:48,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-27 23:33:48,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263941076] [2024-11-27 23:33:48,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:48,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:33:48,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:48,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:33:48,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:33:48,434 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2024-11-27 23:33:48,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 59 transitions, 315 flow. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:48,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:48,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2024-11-27 23:33:48,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:48,781 INFO L124 PetriNetUnfolderBase]: 617/1114 cut-off events. [2024-11-27 23:33:48,781 INFO L125 PetriNetUnfolderBase]: For 789/789 co-relation queries the response was YES. [2024-11-27 23:33:48,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2824 conditions, 1114 events. 617/1114 cut-off events. For 789/789 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4854 event pairs, 36 based on Foata normal form. 29/1050 useless extension candidates. Maximal degree in co-relation 2685. Up to 353 conditions per place. [2024-11-27 23:33:48,787 INFO L140 encePairwiseOnDemand]: 41/45 looper letters, 99 selfloop transitions, 5 changer transitions 0/111 dead transitions. [2024-11-27 23:33:48,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 111 transitions, 746 flow [2024-11-27 23:33:48,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:33:48,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 23:33:48,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 162 transitions. [2024-11-27 23:33:48,789 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-11-27 23:33:48,789 INFO L175 Difference]: Start difference. First operand has 62 places, 59 transitions, 315 flow. Second operand 6 states and 162 transitions. [2024-11-27 23:33:48,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 111 transitions, 746 flow [2024-11-27 23:33:48,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 111 transitions, 706 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 23:33:48,793 INFO L231 Difference]: Finished difference. Result has 64 places, 58 transitions, 313 flow [2024-11-27 23:33:48,794 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=313, PETRI_PLACES=64, PETRI_TRANSITIONS=58} [2024-11-27 23:33:48,794 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 21 predicate places. [2024-11-27 23:33:48,794 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 58 transitions, 313 flow [2024-11-27 23:33:48,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:48,795 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:48,795 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:48,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 23:33:48,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-27 23:33:48,995 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 23:33:48,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:48,996 INFO L85 PathProgramCache]: Analyzing trace with hash 427968591, now seen corresponding path program 1 times [2024-11-27 23:33:48,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:48,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281899538] [2024-11-27 23:33:48,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:48,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:49,113 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-27 23:33:49,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:49,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281899538] [2024-11-27 23:33:49,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281899538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:49,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:49,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:33:49,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734820236] [2024-11-27 23:33:49,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:49,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:33:49,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:49,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:33:49,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:33:49,125 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2024-11-27 23:33:49,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 58 transitions, 313 flow. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:49,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:49,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2024-11-27 23:33:49,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:49,349 INFO L124 PetriNetUnfolderBase]: 632/1174 cut-off events. [2024-11-27 23:33:49,349 INFO L125 PetriNetUnfolderBase]: For 850/850 co-relation queries the response was YES. [2024-11-27 23:33:49,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2966 conditions, 1174 events. 632/1174 cut-off events. For 850/850 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 5445 event pairs, 156 based on Foata normal form. 29/1136 useless extension candidates. Maximal degree in co-relation 2826. Up to 546 conditions per place. [2024-11-27 23:33:49,355 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 72 selfloop transitions, 6 changer transitions 0/85 dead transitions. [2024-11-27 23:33:49,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 85 transitions, 566 flow [2024-11-27 23:33:49,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:33:49,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:33:49,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2024-11-27 23:33:49,357 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-11-27 23:33:49,357 INFO L175 Difference]: Start difference. First operand has 64 places, 58 transitions, 313 flow. Second operand 4 states and 110 transitions. [2024-11-27 23:33:49,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 85 transitions, 566 flow [2024-11-27 23:33:49,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 85 transitions, 553 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-27 23:33:49,361 INFO L231 Difference]: Finished difference. Result has 62 places, 58 transitions, 316 flow [2024-11-27 23:33:49,361 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=316, PETRI_PLACES=62, PETRI_TRANSITIONS=58} [2024-11-27 23:33:49,362 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 19 predicate places. [2024-11-27 23:33:49,362 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 58 transitions, 316 flow [2024-11-27 23:33:49,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:49,362 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:49,362 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:49,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 23:33:49,362 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 23:33:49,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:49,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1658172484, now seen corresponding path program 1 times [2024-11-27 23:33:49,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:49,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378559206] [2024-11-27 23:33:49,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:49,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:49,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:49,511 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-27 23:33:49,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:49,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378559206] [2024-11-27 23:33:49,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378559206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:49,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:49,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:33:49,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604176244] [2024-11-27 23:33:49,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:49,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:33:49,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:49,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:33:49,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:33:49,515 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2024-11-27 23:33:49,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 316 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:49,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:49,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2024-11-27 23:33:49,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:49,779 INFO L124 PetriNetUnfolderBase]: 699/1320 cut-off events. [2024-11-27 23:33:49,779 INFO L125 PetriNetUnfolderBase]: For 1010/1010 co-relation queries the response was YES. [2024-11-27 23:33:49,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3393 conditions, 1320 events. 699/1320 cut-off events. For 1010/1010 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 6852 event pairs, 309 based on Foata normal form. 5/1313 useless extension candidates. Maximal degree in co-relation 3255. Up to 631 conditions per place. [2024-11-27 23:33:49,786 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 77 selfloop transitions, 5 changer transitions 2/91 dead transitions. [2024-11-27 23:33:49,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 91 transitions, 606 flow [2024-11-27 23:33:49,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:33:49,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-27 23:33:49,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 143 transitions. [2024-11-27 23:33:49,787 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6355555555555555 [2024-11-27 23:33:49,788 INFO L175 Difference]: Start difference. First operand has 62 places, 58 transitions, 316 flow. Second operand 5 states and 143 transitions. [2024-11-27 23:33:49,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 91 transitions, 606 flow [2024-11-27 23:33:49,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 91 transitions, 583 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 23:33:49,791 INFO L231 Difference]: Finished difference. Result has 66 places, 59 transitions, 328 flow [2024-11-27 23:33:49,791 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=328, PETRI_PLACES=66, PETRI_TRANSITIONS=59} [2024-11-27 23:33:49,792 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 23 predicate places. [2024-11-27 23:33:49,792 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 59 transitions, 328 flow [2024-11-27 23:33:49,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:49,792 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:49,792 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:49,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 23:33:49,792 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 23:33:49,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:49,793 INFO L85 PathProgramCache]: Analyzing trace with hash -621086376, now seen corresponding path program 2 times [2024-11-27 23:33:49,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:49,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566752157] [2024-11-27 23:33:49,794 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:33:49,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:49,811 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:33:49,811 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:33:49,881 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-27 23:33:49,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:49,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566752157] [2024-11-27 23:33:49,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566752157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:49,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:49,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:33:49,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731199269] [2024-11-27 23:33:49,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:49,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:33:49,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:49,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:33:49,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:33:49,883 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2024-11-27 23:33:49,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 59 transitions, 328 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:49,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:49,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2024-11-27 23:33:49,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:50,137 INFO L124 PetriNetUnfolderBase]: 759/1473 cut-off events. [2024-11-27 23:33:50,138 INFO L125 PetriNetUnfolderBase]: For 1270/1270 co-relation queries the response was YES. [2024-11-27 23:33:50,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3801 conditions, 1473 events. 759/1473 cut-off events. For 1270/1270 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 7880 event pairs, 386 based on Foata normal form. 4/1459 useless extension candidates. Maximal degree in co-relation 3659. Up to 735 conditions per place. [2024-11-27 23:33:50,146 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 78 selfloop transitions, 5 changer transitions 0/90 dead transitions. [2024-11-27 23:33:50,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 90 transitions, 618 flow [2024-11-27 23:33:50,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:33:50,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-27 23:33:50,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 139 transitions. [2024-11-27 23:33:50,147 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6177777777777778 [2024-11-27 23:33:50,147 INFO L175 Difference]: Start difference. First operand has 66 places, 59 transitions, 328 flow. Second operand 5 states and 139 transitions. [2024-11-27 23:33:50,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 90 transitions, 618 flow [2024-11-27 23:33:50,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 90 transitions, 609 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 23:33:50,151 INFO L231 Difference]: Finished difference. Result has 70 places, 60 transitions, 342 flow [2024-11-27 23:33:50,151 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=342, PETRI_PLACES=70, PETRI_TRANSITIONS=60} [2024-11-27 23:33:50,152 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 27 predicate places. [2024-11-27 23:33:50,152 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 60 transitions, 342 flow [2024-11-27 23:33:50,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:50,152 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:50,152 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:50,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 23:33:50,153 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 23:33:50,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:50,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1583077460, now seen corresponding path program 3 times [2024-11-27 23:33:50,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:50,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304605712] [2024-11-27 23:33:50,154 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:33:50,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:50,169 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-27 23:33:50,169 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:33:50,213 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-27 23:33:50,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:50,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304605712] [2024-11-27 23:33:50,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304605712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:50,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:50,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:33:50,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073864032] [2024-11-27 23:33:50,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:50,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:33:50,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:50,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:33:50,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:33:50,216 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2024-11-27 23:33:50,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 60 transitions, 342 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:50,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:50,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2024-11-27 23:33:50,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:50,523 INFO L124 PetriNetUnfolderBase]: 989/1911 cut-off events. [2024-11-27 23:33:50,524 INFO L125 PetriNetUnfolderBase]: For 2029/2029 co-relation queries the response was YES. [2024-11-27 23:33:50,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5142 conditions, 1911 events. 989/1911 cut-off events. For 2029/2029 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 11130 event pairs, 413 based on Foata normal form. 32/1923 useless extension candidates. Maximal degree in co-relation 4998. Up to 1305 conditions per place. [2024-11-27 23:33:50,537 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 73 selfloop transitions, 4 changer transitions 2/86 dead transitions. [2024-11-27 23:33:50,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 86 transitions, 613 flow [2024-11-27 23:33:50,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:33:50,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:33:50,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 118 transitions. [2024-11-27 23:33:50,538 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6555555555555556 [2024-11-27 23:33:50,538 INFO L175 Difference]: Start difference. First operand has 70 places, 60 transitions, 342 flow. Second operand 4 states and 118 transitions. [2024-11-27 23:33:50,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 86 transitions, 613 flow [2024-11-27 23:33:50,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 86 transitions, 605 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 23:33:50,544 INFO L231 Difference]: Finished difference. Result has 74 places, 64 transitions, 394 flow [2024-11-27 23:33:50,545 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=394, PETRI_PLACES=74, PETRI_TRANSITIONS=64} [2024-11-27 23:33:50,545 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 31 predicate places. [2024-11-27 23:33:50,545 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 64 transitions, 394 flow [2024-11-27 23:33:50,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:50,546 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:50,546 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:50,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 23:33:50,546 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 23:33:50,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:50,547 INFO L85 PathProgramCache]: Analyzing trace with hash 661926292, now seen corresponding path program 4 times [2024-11-27 23:33:50,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:50,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545948925] [2024-11-27 23:33:50,547 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 23:33:50,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:50,565 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 23:33:50,565 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:33:50,605 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-27 23:33:50,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:50,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545948925] [2024-11-27 23:33:50,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545948925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:50,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:50,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:33:50,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461665374] [2024-11-27 23:33:50,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:50,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:33:50,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:50,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:33:50,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:33:50,608 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2024-11-27 23:33:50,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 64 transitions, 394 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:50,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:50,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2024-11-27 23:33:50,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:50,933 INFO L124 PetriNetUnfolderBase]: 1052/2019 cut-off events. [2024-11-27 23:33:50,933 INFO L125 PetriNetUnfolderBase]: For 2931/2931 co-relation queries the response was YES. [2024-11-27 23:33:50,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5626 conditions, 2019 events. 1052/2019 cut-off events. For 2931/2931 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 11816 event pairs, 434 based on Foata normal form. 28/2027 useless extension candidates. Maximal degree in co-relation 5481. Up to 1408 conditions per place. [2024-11-27 23:33:50,950 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 75 selfloop transitions, 6 changer transitions 3/91 dead transitions. [2024-11-27 23:33:50,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 91 transitions, 690 flow [2024-11-27 23:33:50,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:33:50,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:33:50,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 119 transitions. [2024-11-27 23:33:50,953 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6611111111111111 [2024-11-27 23:33:50,953 INFO L175 Difference]: Start difference. First operand has 74 places, 64 transitions, 394 flow. Second operand 4 states and 119 transitions. [2024-11-27 23:33:50,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 91 transitions, 690 flow [2024-11-27 23:33:50,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 91 transitions, 690 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 23:33:50,961 INFO L231 Difference]: Finished difference. Result has 80 places, 68 transitions, 468 flow [2024-11-27 23:33:50,961 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=468, PETRI_PLACES=80, PETRI_TRANSITIONS=68} [2024-11-27 23:33:50,962 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 37 predicate places. [2024-11-27 23:33:50,962 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 68 transitions, 468 flow [2024-11-27 23:33:50,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:50,963 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:50,963 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:50,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 23:33:50,963 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 23:33:50,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:50,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1489982588, now seen corresponding path program 1 times [2024-11-27 23:33:50,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:50,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082738158] [2024-11-27 23:33:50,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:50,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:51,093 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-27 23:33:51,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:51,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082738158] [2024-11-27 23:33:51,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082738158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:51,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:51,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:33:51,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623466256] [2024-11-27 23:33:51,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:51,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:33:51,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:51,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:33:51,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:33:51,095 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2024-11-27 23:33:51,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 68 transitions, 468 flow. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:51,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:51,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2024-11-27 23:33:51,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:51,413 INFO L124 PetriNetUnfolderBase]: 968/1854 cut-off events. [2024-11-27 23:33:51,414 INFO L125 PetriNetUnfolderBase]: For 3766/3766 co-relation queries the response was YES. [2024-11-27 23:33:51,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5437 conditions, 1854 events. 968/1854 cut-off events. For 3766/3766 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 10647 event pairs, 468 based on Foata normal form. 24/1861 useless extension candidates. Maximal degree in co-relation 5289. Up to 948 conditions per place. [2024-11-27 23:33:51,428 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 85 selfloop transitions, 8 changer transitions 3/103 dead transitions. [2024-11-27 23:33:51,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 103 transitions, 822 flow [2024-11-27 23:33:51,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:33:51,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:33:51,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 127 transitions. [2024-11-27 23:33:51,430 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7055555555555556 [2024-11-27 23:33:51,431 INFO L175 Difference]: Start difference. First operand has 80 places, 68 transitions, 468 flow. Second operand 4 states and 127 transitions. [2024-11-27 23:33:51,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 103 transitions, 822 flow [2024-11-27 23:33:51,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 103 transitions, 816 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-27 23:33:51,438 INFO L231 Difference]: Finished difference. Result has 84 places, 68 transitions, 486 flow [2024-11-27 23:33:51,438 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=486, PETRI_PLACES=84, PETRI_TRANSITIONS=68} [2024-11-27 23:33:51,438 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 41 predicate places. [2024-11-27 23:33:51,439 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 68 transitions, 486 flow [2024-11-27 23:33:51,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:51,439 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:51,439 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:51,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 23:33:51,439 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 23:33:51,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:51,440 INFO L85 PathProgramCache]: Analyzing trace with hash 60196160, now seen corresponding path program 1 times [2024-11-27 23:33:51,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:51,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720491248] [2024-11-27 23:33:51,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:51,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:51,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:51,543 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-27 23:33:51,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:51,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720491248] [2024-11-27 23:33:51,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720491248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:51,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:51,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-27 23:33:51,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041988858] [2024-11-27 23:33:51,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:51,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:33:51,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:51,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:33:51,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:33:51,552 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2024-11-27 23:33:51,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 68 transitions, 486 flow. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:51,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:51,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2024-11-27 23:33:51,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:51,829 INFO L124 PetriNetUnfolderBase]: 962/1814 cut-off events. [2024-11-27 23:33:51,829 INFO L125 PetriNetUnfolderBase]: For 4498/4498 co-relation queries the response was YES. [2024-11-27 23:33:51,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5539 conditions, 1814 events. 962/1814 cut-off events. For 4498/4498 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 10229 event pairs, 543 based on Foata normal form. 14/1826 useless extension candidates. Maximal degree in co-relation 5389. Up to 1195 conditions per place. [2024-11-27 23:33:51,842 INFO L140 encePairwiseOnDemand]: 41/45 looper letters, 73 selfloop transitions, 2 changer transitions 4/84 dead transitions. [2024-11-27 23:33:51,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 84 transitions, 743 flow [2024-11-27 23:33:51,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:33:51,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:33:51,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 87 transitions. [2024-11-27 23:33:51,844 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6444444444444445 [2024-11-27 23:33:51,844 INFO L175 Difference]: Start difference. First operand has 84 places, 68 transitions, 486 flow. Second operand 3 states and 87 transitions. [2024-11-27 23:33:51,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 84 transitions, 743 flow [2024-11-27 23:33:51,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 84 transitions, 711 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-27 23:33:51,851 INFO L231 Difference]: Finished difference. Result has 82 places, 66 transitions, 463 flow [2024-11-27 23:33:51,852 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=463, PETRI_PLACES=82, PETRI_TRANSITIONS=66} [2024-11-27 23:33:51,852 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 39 predicate places. [2024-11-27 23:33:51,852 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 66 transitions, 463 flow [2024-11-27 23:33:51,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:51,853 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:51,853 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:51,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 23:33:51,854 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 23:33:51,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:51,854 INFO L85 PathProgramCache]: Analyzing trace with hash 665176894, now seen corresponding path program 1 times [2024-11-27 23:33:51,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:51,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235609208] [2024-11-27 23:33:51,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:51,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:51,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:52,024 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-27 23:33:52,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:52,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235609208] [2024-11-27 23:33:52,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235609208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:52,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:52,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:33:52,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425903287] [2024-11-27 23:33:52,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:52,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:33:52,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:52,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:33:52,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:33:52,030 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2024-11-27 23:33:52,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 66 transitions, 463 flow. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:52,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:52,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2024-11-27 23:33:52,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:52,273 INFO L124 PetriNetUnfolderBase]: 766/1474 cut-off events. [2024-11-27 23:33:52,273 INFO L125 PetriNetUnfolderBase]: For 3073/3073 co-relation queries the response was YES. [2024-11-27 23:33:52,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4604 conditions, 1474 events. 766/1474 cut-off events. For 3073/3073 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 7910 event pairs, 84 based on Foata normal form. 10/1484 useless extension candidates. Maximal degree in co-relation 4453. Up to 1114 conditions per place. [2024-11-27 23:33:52,282 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 70 selfloop transitions, 3 changer transitions 0/78 dead transitions. [2024-11-27 23:33:52,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 78 transitions, 670 flow [2024-11-27 23:33:52,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:33:52,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:33:52,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 98 transitions. [2024-11-27 23:33:52,283 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5444444444444444 [2024-11-27 23:33:52,283 INFO L175 Difference]: Start difference. First operand has 82 places, 66 transitions, 463 flow. Second operand 4 states and 98 transitions. [2024-11-27 23:33:52,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 78 transitions, 670 flow [2024-11-27 23:33:52,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 78 transitions, 646 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-11-27 23:33:52,291 INFO L231 Difference]: Finished difference. Result has 77 places, 65 transitions, 441 flow [2024-11-27 23:33:52,292 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=441, PETRI_PLACES=77, PETRI_TRANSITIONS=65} [2024-11-27 23:33:52,295 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 34 predicate places. [2024-11-27 23:33:52,296 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 65 transitions, 441 flow [2024-11-27 23:33:52,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:52,296 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:52,296 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:52,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 23:33:52,297 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 23:33:52,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:52,297 INFO L85 PathProgramCache]: Analyzing trace with hash 862207539, now seen corresponding path program 1 times [2024-11-27 23:33:52,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:52,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968375133] [2024-11-27 23:33:52,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:52,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:52,422 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-27 23:33:52,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:52,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968375133] [2024-11-27 23:33:52,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968375133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:52,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:52,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:33:52,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216627299] [2024-11-27 23:33:52,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:52,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:33:52,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:52,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:33:52,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:33:52,430 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2024-11-27 23:33:52,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 65 transitions, 441 flow. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:52,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:52,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2024-11-27 23:33:52,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:52,681 INFO L124 PetriNetUnfolderBase]: 766/1461 cut-off events. [2024-11-27 23:33:52,682 INFO L125 PetriNetUnfolderBase]: For 2618/2618 co-relation queries the response was YES. [2024-11-27 23:33:52,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4323 conditions, 1461 events. 766/1461 cut-off events. For 2618/2618 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 7814 event pairs, 116 based on Foata normal form. 10/1468 useless extension candidates. Maximal degree in co-relation 4175. Up to 1104 conditions per place. [2024-11-27 23:33:52,686 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 0 selfloop transitions, 0 changer transitions 77/77 dead transitions. [2024-11-27 23:33:52,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 77 transitions, 648 flow [2024-11-27 23:33:52,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:33:52,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:33:52,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 97 transitions. [2024-11-27 23:33:52,687 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5388888888888889 [2024-11-27 23:33:52,687 INFO L175 Difference]: Start difference. First operand has 77 places, 65 transitions, 441 flow. Second operand 4 states and 97 transitions. [2024-11-27 23:33:52,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 77 transitions, 648 flow [2024-11-27 23:33:52,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 77 transitions, 647 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:33:52,692 INFO L231 Difference]: Finished difference. Result has 78 places, 0 transitions, 0 flow [2024-11-27 23:33:52,692 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=78, PETRI_TRANSITIONS=0} [2024-11-27 23:33:52,692 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 35 predicate places. [2024-11-27 23:33:52,693 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 0 transitions, 0 flow [2024-11-27 23:33:52,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:33:52,696 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2024-11-27 23:33:52,700 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2024-11-27 23:33:52,700 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2024-11-27 23:33:52,700 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2024-11-27 23:33:52,700 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2024-11-27 23:33:52,700 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2024-11-27 23:33:52,700 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2024-11-27 23:33:52,700 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2024-11-27 23:33:52,700 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2024-11-27 23:33:52,700 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2024-11-27 23:33:52,700 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 16 remaining) [2024-11-27 23:33:52,700 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2024-11-27 23:33:52,700 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2024-11-27 23:33:52,700 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2024-11-27 23:33:52,700 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2024-11-27 23:33:52,700 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2024-11-27 23:33:52,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-27 23:33:52,701 INFO L422 BasicCegarLoop]: Path program histogram: [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:52,707 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-27 23:33:52,707 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 23:33:52,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:33:52 BasicIcfg [2024-11-27 23:33:52,715 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 23:33:52,716 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:33:52,716 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:33:52,716 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:33:52,717 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:33:39" (3/4) ... [2024-11-27 23:33:52,718 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 23:33:52,721 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-27 23:33:52,721 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-27 23:33:52,729 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 110 nodes and edges [2024-11-27 23:33:52,731 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2024-11-27 23:33:52,731 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-27 23:33:52,731 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-27 23:33:52,821 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 23:33:52,825 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 23:33:52,826 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:33:52,827 INFO L158 Benchmark]: Toolchain (without parser) took 14514.81ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 118.7MB in the beginning and 374.0MB in the end (delta: -255.3MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2024-11-27 23:33:52,827 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 142.6MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:33:52,829 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.76ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 106.6MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:33:52,829 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.11ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 104.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:33:52,830 INFO L158 Benchmark]: Boogie Preprocessor took 81.62ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 102.9MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:33:52,830 INFO L158 Benchmark]: RCFGBuilder took 1061.93ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 108.1MB in the end (delta: -5.2MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. [2024-11-27 23:33:52,830 INFO L158 Benchmark]: TraceAbstraction took 12825.91ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 107.8MB in the beginning and 378.2MB in the end (delta: -270.3MB). Peak memory consumption was 245.5MB. Max. memory is 16.1GB. [2024-11-27 23:33:52,831 INFO L158 Benchmark]: Witness Printer took 110.18ms. Allocated memory is still 427.8MB. Free memory was 378.2MB in the beginning and 374.0MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:33:52,832 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 142.6MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.76ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 106.6MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.11ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 104.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 81.62ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 102.9MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1061.93ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 108.1MB in the end (delta: -5.2MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. * TraceAbstraction took 12825.91ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 107.8MB in the beginning and 378.2MB in the end (delta: -270.3MB). Peak memory consumption was 245.5MB. Max. memory is 16.1GB. * Witness Printer took 110.18ms. Allocated memory is still 427.8MB. Free memory was 378.2MB in the beginning and 374.0MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 60 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 12.7s, OverallIterations: 20, TraceHistogramMax: 5, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 730 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 659 mSDsluCounter, 383 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 335 mSDsCounter, 118 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2958 IncrementalHoareTripleChecker+Invalid, 3076 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 118 mSolverCounterUnsat, 48 mSDtfsCounter, 2958 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 281 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=486occurred in iteration=17, InterpolantAutomatonStates: 104, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 738 NumberOfCodeBlocks, 620 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 779 ConstructedInterpolants, 0 QuantifiedInterpolants, 1359 SizeOfPredicates, 16 NumberOfNonLiveVariables, 860 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 30 InterpolantComputations, 16 PerfectInterpolantSequences, 988/1056 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-27 23:33:52,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f222f09-5a3b-429f-8f43-196edc0f12ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE