./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:06:16,768 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:06:16,873 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 18:06:16,881 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:06:16,882 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:06:16,920 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:06:16,921 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:06:16,921 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:06:16,922 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:06:16,924 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:06:16,926 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:06:16,927 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:06:16,928 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:06:16,928 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:06:16,932 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:06:16,933 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:06:16,933 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:06:16,933 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:06:16,934 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:06:16,934 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:06:16,935 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:06:16,937 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:06:16,937 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:06:16,939 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:06:16,939 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:06:16,940 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 18:06:16,940 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:06:16,941 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:06:16,941 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:06:16,941 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:06:16,942 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:06:16,942 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:06:16,943 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:06:16,943 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:06:16,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:06:16,944 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:06:16,944 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:06:16,945 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:06:16,946 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:06:16,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:06:16,947 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:06:16,948 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:06:16,949 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:06:16,949 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:06:16,950 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e [2024-11-08 18:06:17,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:06:17,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:06:17,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:06:17,323 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:06:17,324 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:06:17,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i Unable to find full path for "g++" [2024-11-08 18:06:19,423 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:06:19,737 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:06:19,737 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2024-11-08 18:06:19,758 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/data/186151b41/94461016ab214ef2b8711409ea606c8b/FLAGddd7db872 [2024-11-08 18:06:19,782 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/data/186151b41/94461016ab214ef2b8711409ea606c8b [2024-11-08 18:06:19,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:06:19,787 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:06:19,790 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:06:19,791 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:06:19,797 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:06:19,797 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:06:19" (1/1) ... [2024-11-08 18:06:19,799 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14654cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:06:19, skipping insertion in model container [2024-11-08 18:06:19,799 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:06:19" (1/1) ... [2024-11-08 18:06:19,869 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:06:20,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:06:20,548 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:06:20,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:06:20,761 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:06:20,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:06:20 WrapperNode [2024-11-08 18:06:20,763 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:06:20,764 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:06:20,765 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:06:20,765 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:06:20,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:06:20" (1/1) ... [2024-11-08 18:06:20,805 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:06:20" (1/1) ... [2024-11-08 18:06:20,864 INFO L138 Inliner]: procedures = 265, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 132 [2024-11-08 18:06:20,865 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:06:20,868 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:06:20,868 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:06:20,868 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:06:20,884 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:06:20" (1/1) ... [2024-11-08 18:06:20,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:06:20" (1/1) ... [2024-11-08 18:06:20,893 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:06:20" (1/1) ... [2024-11-08 18:06:20,933 INFO L175 MemorySlicer]: Split 64 memory accesses to 1 slices as follows [64]. 100 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [60]. The 2 writes are split as follows [2]. [2024-11-08 18:06:20,934 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:06:20" (1/1) ... [2024-11-08 18:06:20,935 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:06:20" (1/1) ... [2024-11-08 18:06:20,950 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:06:20" (1/1) ... [2024-11-08 18:06:20,962 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:06:20" (1/1) ... [2024-11-08 18:06:20,964 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:06:20" (1/1) ... [2024-11-08 18:06:20,969 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:06:20" (1/1) ... [2024-11-08 18:06:20,976 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:06:20,977 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:06:20,977 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:06:20,977 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:06:20,982 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:06:20" (1/1) ... [2024-11-08 18:06:20,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:06:21,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:06:21,041 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:06:21,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:06:21,087 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 18:06:21,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 18:06:21,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 18:06:21,087 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 18:06:21,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:06:21,088 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 18:06:21,088 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 18:06:21,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:06:21,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:06:21,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:06:21,091 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 18:06:21,257 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:06:21,259 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:06:21,653 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:06:21,654 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:06:22,199 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:06:22,201 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:06:22,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:06:22 BoogieIcfgContainer [2024-11-08 18:06:22,202 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:06:22,207 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:06:22,207 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:06:22,211 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:06:22,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:06:19" (1/3) ... [2024-11-08 18:06:22,213 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@795feb79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:06:22, skipping insertion in model container [2024-11-08 18:06:22,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:06:20" (2/3) ... [2024-11-08 18:06:22,215 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@795feb79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:06:22, skipping insertion in model container [2024-11-08 18:06:22,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:06:22" (3/3) ... [2024-11-08 18:06:22,218 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_06-tricky_address1.i [2024-11-08 18:06:22,240 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:06:22,241 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-08 18:06:22,241 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:06:22,291 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-08 18:06:22,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 30 transitions, 64 flow [2024-11-08 18:06:22,387 INFO L124 PetriNetUnfolderBase]: 2/29 cut-off events. [2024-11-08 18:06:22,388 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:06:22,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 29 events. 2/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 10. Up to 2 conditions per place. [2024-11-08 18:06:22,391 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 30 transitions, 64 flow [2024-11-08 18:06:22,396 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 29 transitions, 61 flow [2024-11-08 18:06:22,411 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:06:22,419 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;@13ad879c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:06:22,419 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-08 18:06:22,428 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:06:22,428 INFO L124 PetriNetUnfolderBase]: 1/7 cut-off events. [2024-11-08 18:06:22,428 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:06:22,429 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:06:22,429 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 18:06:22,430 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:06:22,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:22,437 INFO L85 PathProgramCache]: Analyzing trace with hash 10667341, now seen corresponding path program 1 times [2024-11-08 18:06:22,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:06:22,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106520918] [2024-11-08 18:06:22,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:22,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:06:22,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:22,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:06:22,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:06:22,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106520918] [2024-11-08 18:06:22,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106520918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:06:22,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:06:22,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:06:22,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127199821] [2024-11-08 18:06:22,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:22,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:06:22,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:06:22,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:06:22,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:06:22,994 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:06:22,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 61 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:06:22,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:06:22,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:06:22,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:06:23,189 INFO L124 PetriNetUnfolderBase]: 38/123 cut-off events. [2024-11-08 18:06:23,190 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:06:23,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 123 events. 38/123 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 403 event pairs, 36 based on Foata normal form. 2/114 useless extension candidates. Maximal degree in co-relation 192. Up to 94 conditions per place. [2024-11-08 18:06:23,193 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 20 selfloop transitions, 3 changer transitions 0/31 dead transitions. [2024-11-08 18:06:23,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 31 transitions, 111 flow [2024-11-08 18:06:23,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:06:23,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:06:23,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 63 transitions. [2024-11-08 18:06:23,209 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.525 [2024-11-08 18:06:23,211 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 61 flow. Second operand 4 states and 63 transitions. [2024-11-08 18:06:23,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 31 transitions, 111 flow [2024-11-08 18:06:23,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 31 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:06:23,219 INFO L231 Difference]: Finished difference. Result has 35 places, 31 transitions, 86 flow [2024-11-08 18:06:23,221 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=86, PETRI_PLACES=35, PETRI_TRANSITIONS=31} [2024-11-08 18:06:23,225 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2024-11-08 18:06:23,226 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 31 transitions, 86 flow [2024-11-08 18:06:23,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:06:23,227 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:06:23,227 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-08 18:06:23,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:06:23,228 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:06:23,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:23,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1131090559, now seen corresponding path program 1 times [2024-11-08 18:06:23,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:06:23,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710303298] [2024-11-08 18:06:23,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:23,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:06:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:23,451 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:06:23,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:06:23,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710303298] [2024-11-08 18:06:23,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710303298] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:06:23,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449468671] [2024-11-08 18:06:23,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:23,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:06:23,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:06:23,457 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:06:23,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:06:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:23,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:06:23,602 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:06:23,677 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:06:23,677 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:06:23,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449468671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:06:23,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:06:23,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 18:06:23,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631367524] [2024-11-08 18:06:23,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:23,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:06:23,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:06:23,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:06:23,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:06:23,715 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:06:23,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 31 transitions, 86 flow. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 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) [2024-11-08 18:06:23,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:06:23,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:06:23,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:06:23,873 INFO L124 PetriNetUnfolderBase]: 38/122 cut-off events. [2024-11-08 18:06:23,874 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 18:06:23,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 122 events. 38/122 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 399 event pairs, 36 based on Foata normal form. 1/112 useless extension candidates. Maximal degree in co-relation 215. Up to 87 conditions per place. [2024-11-08 18:06:23,877 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 16 selfloop transitions, 6 changer transitions 0/30 dead transitions. [2024-11-08 18:06:23,877 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 30 transitions, 126 flow [2024-11-08 18:06:23,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:06:23,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:06:23,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 77 transitions. [2024-11-08 18:06:23,881 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42777777777777776 [2024-11-08 18:06:23,881 INFO L175 Difference]: Start difference. First operand has 35 places, 31 transitions, 86 flow. Second operand 6 states and 77 transitions. [2024-11-08 18:06:23,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 30 transitions, 126 flow [2024-11-08 18:06:23,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 30 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:06:23,884 INFO L231 Difference]: Finished difference. Result has 38 places, 30 transitions, 92 flow [2024-11-08 18:06:23,885 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=92, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2024-11-08 18:06:23,886 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 7 predicate places. [2024-11-08 18:06:23,886 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 92 flow [2024-11-08 18:06:23,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 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) [2024-11-08 18:06:23,886 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:06:23,887 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-08 18:06:23,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:06:24,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:06:24,088 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:06:24,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:24,089 INFO L85 PathProgramCache]: Analyzing trace with hash -704068621, now seen corresponding path program 1 times [2024-11-08 18:06:24,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:06:24,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191179511] [2024-11-08 18:06:24,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:24,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:06:24,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:24,195 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 18:06:24,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:06:24,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191179511] [2024-11-08 18:06:24,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191179511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:06:24,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:06:24,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:06:24,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688185959] [2024-11-08 18:06:24,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:24,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:06:24,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:06:24,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:06:24,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:06:24,216 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-08 18:06:24,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:06:24,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:06:24,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-08 18:06:24,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:06:24,330 INFO L124 PetriNetUnfolderBase]: 37/120 cut-off events. [2024-11-08 18:06:24,330 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-08 18:06:24,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 120 events. 37/120 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 395 event pairs, 36 based on Foata normal form. 2/113 useless extension candidates. Maximal degree in co-relation 209. Up to 90 conditions per place. [2024-11-08 18:06:24,332 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 16 selfloop transitions, 6 changer transitions 0/29 dead transitions. [2024-11-08 18:06:24,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 29 transitions, 130 flow [2024-11-08 18:06:24,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:06:24,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:06:24,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 54 transitions. [2024-11-08 18:06:24,334 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45 [2024-11-08 18:06:24,334 INFO L175 Difference]: Start difference. First operand has 38 places, 30 transitions, 92 flow. Second operand 4 states and 54 transitions. [2024-11-08 18:06:24,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 29 transitions, 130 flow [2024-11-08 18:06:24,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 29 transitions, 120 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-08 18:06:24,336 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 94 flow [2024-11-08 18:06:24,336 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2024-11-08 18:06:24,337 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 6 predicate places. [2024-11-08 18:06:24,337 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 94 flow [2024-11-08 18:06:24,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:06:24,337 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:06:24,338 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:06:24,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:06:24,338 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:06:24,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:24,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1052497873, now seen corresponding path program 1 times [2024-11-08 18:06:24,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:06:24,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616976911] [2024-11-08 18:06:24,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:24,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:06:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:24,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:06:24,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:06:24,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616976911] [2024-11-08 18:06:24,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616976911] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:06:24,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282870932] [2024-11-08 18:06:24,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:24,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:06:24,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:06:24,506 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:06:24,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:06:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:24,627 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:06:24,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:06:24,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:06:24,665 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:06:24,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:06:24,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282870932] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:06:24,719 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:06:24,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-08 18:06:24,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41907398] [2024-11-08 18:06:24,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:06:24,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:06:24,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:06:24,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:06:24,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:06:24,761 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-08 18:06:24,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 94 flow. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 10 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:06:24,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:06:24,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-08 18:06:24,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:06:24,971 INFO L124 PetriNetUnfolderBase]: 37/125 cut-off events. [2024-11-08 18:06:24,971 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-08 18:06:24,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 255 conditions, 125 events. 37/125 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 390 event pairs, 36 based on Foata normal form. 2/118 useless extension candidates. Maximal degree in co-relation 201. Up to 89 conditions per place. [2024-11-08 18:06:24,973 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 19 selfloop transitions, 7 changer transitions 0/33 dead transitions. [2024-11-08 18:06:24,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 33 transitions, 171 flow [2024-11-08 18:06:24,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:06:24,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 18:06:24,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 84 transitions. [2024-11-08 18:06:24,976 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4 [2024-11-08 18:06:24,976 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 94 flow. Second operand 7 states and 84 transitions. [2024-11-08 18:06:24,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 33 transitions, 171 flow [2024-11-08 18:06:24,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 33 transitions, 158 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:06:24,979 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 132 flow [2024-11-08 18:06:24,980 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=132, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2024-11-08 18:06:24,981 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 13 predicate places. [2024-11-08 18:06:24,981 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 132 flow [2024-11-08 18:06:24,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 10 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:06:24,982 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:06:24,982 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:06:25,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:06:25,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:06:25,187 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:06:25,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:25,188 INFO L85 PathProgramCache]: Analyzing trace with hash 75499065, now seen corresponding path program 2 times [2024-11-08 18:06:25,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:06:25,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681681931] [2024-11-08 18:06:25,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:25,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:06:25,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:25,368 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:06:25,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:06:25,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681681931] [2024-11-08 18:06:25,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681681931] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:06:25,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315962825] [2024-11-08 18:06:25,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:06:25,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:06:25,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:06:25,372 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:06:25,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:06:25,484 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 18:06:25,484 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:06:25,485 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 18:06:25,487 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:06:26,506 INFO L349 Elim1Store]: treesize reduction 78, result has 3.7 percent of original size [2024-11-08 18:06:26,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 45 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 80 treesize of output 37 [2024-11-08 18:06:26,526 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 18:06:26,527 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:06:26,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315962825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:06:26,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:06:26,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 11 [2024-11-08 18:06:26,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6585358] [2024-11-08 18:06:26,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:26,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:06:26,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:06:26,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:06:26,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:06:26,537 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 30 [2024-11-08 18:06:26,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 132 flow. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:06:26,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:06:26,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 30 [2024-11-08 18:06:26,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:06:26,737 INFO L124 PetriNetUnfolderBase]: 50/143 cut-off events. [2024-11-08 18:06:26,738 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-11-08 18:06:26,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 143 events. 50/143 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 429 event pairs, 16 based on Foata normal form. 7/137 useless extension candidates. Maximal degree in co-relation 246. Up to 68 conditions per place. [2024-11-08 18:06:26,739 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 30 selfloop transitions, 7 changer transitions 3/49 dead transitions. [2024-11-08 18:06:26,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 49 transitions, 246 flow [2024-11-08 18:06:26,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:06:26,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:06:26,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 104 transitions. [2024-11-08 18:06:26,741 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5777777777777777 [2024-11-08 18:06:26,742 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 132 flow. Second operand 6 states and 104 transitions. [2024-11-08 18:06:26,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 49 transitions, 246 flow [2024-11-08 18:06:26,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 49 transitions, 240 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-08 18:06:26,745 INFO L231 Difference]: Finished difference. Result has 51 places, 35 transitions, 166 flow [2024-11-08 18:06:26,746 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=166, PETRI_PLACES=51, PETRI_TRANSITIONS=35} [2024-11-08 18:06:26,747 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 20 predicate places. [2024-11-08 18:06:26,748 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 35 transitions, 166 flow [2024-11-08 18:06:26,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:06:26,748 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:06:26,749 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:06:26,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 18:06:26,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:06:26,950 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:06:26,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:26,950 INFO L85 PathProgramCache]: Analyzing trace with hash 76362274, now seen corresponding path program 1 times [2024-11-08 18:06:26,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:06:26,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359685365] [2024-11-08 18:06:26,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:26,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:06:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:27,111 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:06:27,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:06:27,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359685365] [2024-11-08 18:06:27,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359685365] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:06:27,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623203248] [2024-11-08 18:06:27,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:27,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:06:27,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:06:27,114 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:06:27,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 18:06:27,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:27,249 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 18:06:27,251 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:06:27,314 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:06:27,314 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:06:27,454 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:06:27,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623203248] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:06:27,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:06:27,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-08 18:06:27,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306160873] [2024-11-08 18:06:27,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:06:27,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 18:06:27,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:06:27,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 18:06:27,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:06:27,500 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-08 18:06:27,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 35 transitions, 166 flow. Second operand has 18 states, 18 states have (on average 9.722222222222221) internal successors, (175), 18 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:06:27,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:06:27,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-08 18:06:27,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:06:27,764 INFO L124 PetriNetUnfolderBase]: 27/131 cut-off events. [2024-11-08 18:06:27,764 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2024-11-08 18:06:27,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 131 events. 27/131 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 374 event pairs, 26 based on Foata normal form. 4/129 useless extension candidates. Maximal degree in co-relation 318. Up to 73 conditions per place. [2024-11-08 18:06:27,765 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 25 selfloop transitions, 15 changer transitions 0/48 dead transitions. [2024-11-08 18:06:27,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 48 transitions, 356 flow [2024-11-08 18:06:27,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:06:27,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 18:06:27,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 162 transitions. [2024-11-08 18:06:27,768 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36 [2024-11-08 18:06:27,768 INFO L175 Difference]: Start difference. First operand has 51 places, 35 transitions, 166 flow. Second operand 15 states and 162 transitions. [2024-11-08 18:06:27,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 48 transitions, 356 flow [2024-11-08 18:06:27,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 48 transitions, 354 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:06:27,772 INFO L231 Difference]: Finished difference. Result has 69 places, 44 transitions, 298 flow [2024-11-08 18:06:27,772 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=298, PETRI_PLACES=69, PETRI_TRANSITIONS=44} [2024-11-08 18:06:27,773 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 38 predicate places. [2024-11-08 18:06:27,773 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 44 transitions, 298 flow [2024-11-08 18:06:27,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 9.722222222222221) internal successors, (175), 18 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:06:27,773 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:06:27,773 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:06:27,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 18:06:27,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-08 18:06:27,978 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:06:27,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:27,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1455085298, now seen corresponding path program 2 times [2024-11-08 18:06:27,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:06:27,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351438785] [2024-11-08 18:06:27,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:27,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:06:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:28,387 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:06:28,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:06:28,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351438785] [2024-11-08 18:06:28,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351438785] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:06:28,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104073716] [2024-11-08 18:06:28,389 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:06:28,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:06:28,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:06:28,391 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:06:28,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:06:28,499 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 18:06:28,499 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:06:28,501 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-08 18:06:28,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:06:30,313 INFO L349 Elim1Store]: treesize reduction 78, result has 3.7 percent of original size [2024-11-08 18:06:30,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 56 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 10 case distinctions, treesize of input 87 treesize of output 40 [2024-11-08 18:06:30,342 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-08 18:06:30,342 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:06:30,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104073716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:06:30,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:06:30,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [16] total 19 [2024-11-08 18:06:30,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000000938] [2024-11-08 18:06:30,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:30,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:06:30,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:06:30,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:06:30,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2024-11-08 18:06:30,360 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 30 [2024-11-08 18:06:30,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 44 transitions, 298 flow. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:06:30,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:06:30,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 30 [2024-11-08 18:06:30,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:06:30,714 INFO L124 PetriNetUnfolderBase]: 37/142 cut-off events. [2024-11-08 18:06:30,715 INFO L125 PetriNetUnfolderBase]: For 250/252 co-relation queries the response was YES. [2024-11-08 18:06:30,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 416 conditions, 142 events. 37/142 cut-off events. For 250/252 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 407 event pairs, 6 based on Foata normal form. 7/149 useless extension candidates. Maximal degree in co-relation 374. Up to 49 conditions per place. [2024-11-08 18:06:30,716 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 41 selfloop transitions, 9 changer transitions 0/61 dead transitions. [2024-11-08 18:06:30,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 61 transitions, 448 flow [2024-11-08 18:06:30,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:06:30,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:06:30,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 105 transitions. [2024-11-08 18:06:30,718 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2024-11-08 18:06:30,718 INFO L175 Difference]: Start difference. First operand has 69 places, 44 transitions, 298 flow. Second operand 6 states and 105 transitions. [2024-11-08 18:06:30,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 61 transitions, 448 flow [2024-11-08 18:06:30,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 61 transitions, 420 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-11-08 18:06:30,725 INFO L231 Difference]: Finished difference. Result has 75 places, 49 transitions, 334 flow [2024-11-08 18:06:30,726 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=334, PETRI_PLACES=75, PETRI_TRANSITIONS=49} [2024-11-08 18:06:30,726 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 44 predicate places. [2024-11-08 18:06:30,726 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 49 transitions, 334 flow [2024-11-08 18:06:30,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:06:30,727 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:06:30,727 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:06:30,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 18:06:30,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:06:30,932 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:06:30,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:30,932 INFO L85 PathProgramCache]: Analyzing trace with hash 2131212135, now seen corresponding path program 1 times [2024-11-08 18:06:30,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:06:30,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205779356] [2024-11-08 18:06:30,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:30,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:06:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:31,292 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:06:31,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:06:31,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205779356] [2024-11-08 18:06:31,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205779356] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:06:31,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353262027] [2024-11-08 18:06:31,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:31,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:06:31,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:06:31,295 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:06:31,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 18:06:31,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:31,395 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 18:06:31,397 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:06:31,474 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:06:31,474 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:06:31,730 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:06:31,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353262027] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:06:31,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:06:31,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-08 18:06:31,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866443755] [2024-11-08 18:06:31,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:06:31,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 18:06:31,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:06:31,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 18:06:31,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-08 18:06:31,786 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-08 18:06:31,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 49 transitions, 334 flow. Second operand has 23 states, 23 states have (on average 9.73913043478261) internal successors, (224), 23 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:06:31,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:06:31,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-08 18:06:31,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:06:32,095 INFO L124 PetriNetUnfolderBase]: 26/147 cut-off events. [2024-11-08 18:06:32,095 INFO L125 PetriNetUnfolderBase]: For 362/364 co-relation queries the response was YES. [2024-11-08 18:06:32,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 147 events. 26/147 cut-off events. For 362/364 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 403 event pairs, 22 based on Foata normal form. 3/150 useless extension candidates. Maximal degree in co-relation 453. Up to 75 conditions per place. [2024-11-08 18:06:32,098 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 32 selfloop transitions, 21 changer transitions 0/62 dead transitions. [2024-11-08 18:06:32,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 62 transitions, 572 flow [2024-11-08 18:06:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 18:06:32,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-08 18:06:32,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 218 transitions. [2024-11-08 18:06:32,103 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.346031746031746 [2024-11-08 18:06:32,103 INFO L175 Difference]: Start difference. First operand has 75 places, 49 transitions, 334 flow. Second operand 21 states and 218 transitions. [2024-11-08 18:06:32,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 62 transitions, 572 flow [2024-11-08 18:06:32,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 62 transitions, 572 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:06:32,112 INFO L231 Difference]: Finished difference. Result has 99 places, 56 transitions, 468 flow [2024-11-08 18:06:32,112 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=468, PETRI_PLACES=99, PETRI_TRANSITIONS=56} [2024-11-08 18:06:32,113 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 68 predicate places. [2024-11-08 18:06:32,113 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 56 transitions, 468 flow [2024-11-08 18:06:32,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.73913043478261) internal successors, (224), 23 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:06:32,114 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:06:32,114 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:06:32,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-08 18:06:32,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:06:32,318 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:06:32,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:32,318 INFO L85 PathProgramCache]: Analyzing trace with hash -131682229, now seen corresponding path program 2 times [2024-11-08 18:06:32,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:06:32,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013257113] [2024-11-08 18:06:32,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:32,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:06:32,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:33,997 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 18:06:33,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:06:33,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013257113] [2024-11-08 18:06:33,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013257113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:06:33,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:06:33,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:06:33,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935532622] [2024-11-08 18:06:33,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:33,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:06:33,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:06:34,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:06:34,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:06:34,017 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 30 [2024-11-08 18:06:34,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 56 transitions, 468 flow. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:06:34,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:06:34,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 30 [2024-11-08 18:06:34,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:06:34,321 INFO L124 PetriNetUnfolderBase]: 30/147 cut-off events. [2024-11-08 18:06:34,321 INFO L125 PetriNetUnfolderBase]: For 494/496 co-relation queries the response was YES. [2024-11-08 18:06:34,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 147 events. 30/147 cut-off events. For 494/496 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 376 event pairs, 14 based on Foata normal form. 9/156 useless extension candidates. Maximal degree in co-relation 480. Up to 54 conditions per place. [2024-11-08 18:06:34,325 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 41 selfloop transitions, 7 changer transitions 3/63 dead transitions. [2024-11-08 18:06:34,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 63 transitions, 590 flow [2024-11-08 18:06:34,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:06:34,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:06:34,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 99 transitions. [2024-11-08 18:06:34,328 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.55 [2024-11-08 18:06:34,328 INFO L175 Difference]: Start difference. First operand has 99 places, 56 transitions, 468 flow. Second operand 6 states and 99 transitions. [2024-11-08 18:06:34,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 63 transitions, 590 flow [2024-11-08 18:06:34,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 63 transitions, 558 flow, removed 1 selfloop flow, removed 13 redundant places. [2024-11-08 18:06:34,376 INFO L231 Difference]: Finished difference. Result has 91 places, 54 transitions, 436 flow [2024-11-08 18:06:34,377 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=436, PETRI_PLACES=91, PETRI_TRANSITIONS=54} [2024-11-08 18:06:34,377 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 60 predicate places. [2024-11-08 18:06:34,378 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 54 transitions, 436 flow [2024-11-08 18:06:34,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:06:34,380 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:06:34,380 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:06:34,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:06:34,380 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:06:34,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:34,381 INFO L85 PathProgramCache]: Analyzing trace with hash -104922726, now seen corresponding path program 1 times [2024-11-08 18:06:34,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:06:34,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337542647] [2024-11-08 18:06:34,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:34,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:06:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:35,607 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 18:06:35,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:06:35,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337542647] [2024-11-08 18:06:35,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337542647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:06:35,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:06:35,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:06:35,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029871630] [2024-11-08 18:06:35,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:35,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:06:35,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:06:35,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:06:35,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:06:35,629 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 30 [2024-11-08 18:06:35,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 54 transitions, 436 flow. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:06:35,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:06:35,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 30 [2024-11-08 18:06:35,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:06:35,847 INFO L124 PetriNetUnfolderBase]: 30/139 cut-off events. [2024-11-08 18:06:35,847 INFO L125 PetriNetUnfolderBase]: For 437/439 co-relation queries the response was YES. [2024-11-08 18:06:35,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 512 conditions, 139 events. 30/139 cut-off events. For 437/439 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 317 event pairs, 8 based on Foata normal form. 9/148 useless extension candidates. Maximal degree in co-relation 471. Up to 51 conditions per place. [2024-11-08 18:06:35,849 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 43 selfloop transitions, 6 changer transitions 4/64 dead transitions. [2024-11-08 18:06:35,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 64 transitions, 572 flow [2024-11-08 18:06:35,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:06:35,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:06:35,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 103 transitions. [2024-11-08 18:06:35,851 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5722222222222222 [2024-11-08 18:06:35,851 INFO L175 Difference]: Start difference. First operand has 91 places, 54 transitions, 436 flow. Second operand 6 states and 103 transitions. [2024-11-08 18:06:35,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 64 transitions, 572 flow [2024-11-08 18:06:35,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 64 transitions, 546 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-11-08 18:06:35,859 INFO L231 Difference]: Finished difference. Result has 89 places, 52 transitions, 413 flow [2024-11-08 18:06:35,860 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=413, PETRI_PLACES=89, PETRI_TRANSITIONS=52} [2024-11-08 18:06:35,861 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 58 predicate places. [2024-11-08 18:06:35,862 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 52 transitions, 413 flow [2024-11-08 18:06:35,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:06:35,862 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:06:35,863 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:06:35,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 18:06:35,863 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:06:35,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:35,864 INFO L85 PathProgramCache]: Analyzing trace with hash 722711404, now seen corresponding path program 1 times [2024-11-08 18:06:35,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:06:35,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064961449] [2024-11-08 18:06:35,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:35,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:06:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:40,665 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 18:06:40,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:06:40,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064961449] [2024-11-08 18:06:40,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064961449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:06:40,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:06:40,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:06:40,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824523960] [2024-11-08 18:06:40,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:40,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:06:40,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:06:40,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:06:40,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:06:40,709 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 30 [2024-11-08 18:06:40,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 52 transitions, 413 flow. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:06:40,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:06:40,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 30 [2024-11-08 18:06:40,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:06:42,809 INFO L124 PetriNetUnfolderBase]: 53/182 cut-off events. [2024-11-08 18:06:42,809 INFO L125 PetriNetUnfolderBase]: For 403/403 co-relation queries the response was YES. [2024-11-08 18:06:42,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 632 conditions, 182 events. 53/182 cut-off events. For 403/403 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 489 event pairs, 16 based on Foata normal form. 3/185 useless extension candidates. Maximal degree in co-relation 565. Up to 46 conditions per place. [2024-11-08 18:06:42,813 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 56 selfloop transitions, 20 changer transitions 6/89 dead transitions. [2024-11-08 18:06:42,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 89 transitions, 718 flow [2024-11-08 18:06:42,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 18:06:42,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-08 18:06:42,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 184 transitions. [2024-11-08 18:06:42,815 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3607843137254902 [2024-11-08 18:06:42,815 INFO L175 Difference]: Start difference. First operand has 89 places, 52 transitions, 413 flow. Second operand 17 states and 184 transitions. [2024-11-08 18:06:42,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 89 transitions, 718 flow [2024-11-08 18:06:42,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 89 transitions, 686 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-08 18:06:42,822 INFO L231 Difference]: Finished difference. Result has 103 places, 66 transitions, 523 flow [2024-11-08 18:06:42,823 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=523, PETRI_PLACES=103, PETRI_TRANSITIONS=66} [2024-11-08 18:06:42,824 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 72 predicate places. [2024-11-08 18:06:42,824 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 66 transitions, 523 flow [2024-11-08 18:06:42,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:06:42,824 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:06:42,825 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:06:42,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:06:42,825 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:06:42,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:42,826 INFO L85 PathProgramCache]: Analyzing trace with hash 212663736, now seen corresponding path program 1 times [2024-11-08 18:06:42,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:06:42,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58399029] [2024-11-08 18:06:42,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:42,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:06:42,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:49,052 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 18:06:49,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:06:49,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58399029] [2024-11-08 18:06:49,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58399029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:06:49,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:06:49,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:06:49,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317137222] [2024-11-08 18:06:49,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:49,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:06:49,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:06:49,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:06:49,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:06:49,133 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-08 18:06:49,134 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 66 transitions, 523 flow. Second operand has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 11 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:06:49,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:06:49,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-08 18:06:49,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:06:51,512 INFO L124 PetriNetUnfolderBase]: 57/208 cut-off events. [2024-11-08 18:06:51,512 INFO L125 PetriNetUnfolderBase]: For 489/489 co-relation queries the response was YES. [2024-11-08 18:06:51,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 774 conditions, 208 events. 57/208 cut-off events. For 489/489 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 689 event pairs, 22 based on Foata normal form. 3/211 useless extension candidates. Maximal degree in co-relation 686. Up to 88 conditions per place. [2024-11-08 18:06:51,516 INFO L140 encePairwiseOnDemand]: 18/30 looper letters, 52 selfloop transitions, 32 changer transitions 7/101 dead transitions. [2024-11-08 18:06:51,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 101 transitions, 881 flow [2024-11-08 18:06:51,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 18:06:51,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-08 18:06:51,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 208 transitions. [2024-11-08 18:06:51,521 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3851851851851852 [2024-11-08 18:06:51,521 INFO L175 Difference]: Start difference. First operand has 103 places, 66 transitions, 523 flow. Second operand 18 states and 208 transitions. [2024-11-08 18:06:51,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 101 transitions, 881 flow [2024-11-08 18:06:51,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 101 transitions, 838 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-08 18:06:51,532 INFO L231 Difference]: Finished difference. Result has 121 places, 83 transitions, 701 flow [2024-11-08 18:06:51,536 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=701, PETRI_PLACES=121, PETRI_TRANSITIONS=83} [2024-11-08 18:06:51,537 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 90 predicate places. [2024-11-08 18:06:51,537 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 83 transitions, 701 flow [2024-11-08 18:06:51,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 11 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:06:51,537 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:06:51,538 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:06:51,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 18:06:51,538 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:06:51,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:51,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1101031356, now seen corresponding path program 2 times [2024-11-08 18:06:51,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:06:51,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998001410] [2024-11-08 18:06:51,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:51,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:06:51,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:57,565 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 18:06:57,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:06:57,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998001410] [2024-11-08 18:06:57,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998001410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:06:57,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:06:57,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:06:57,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112261568] [2024-11-08 18:06:57,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:57,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:06:57,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:06:57,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:06:57,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:06:57,678 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-08 18:06:57,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 83 transitions, 701 flow. Second operand has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 11 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:06:57,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:06:57,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-08 18:06:57,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:06:59,881 INFO L124 PetriNetUnfolderBase]: 58/221 cut-off events. [2024-11-08 18:06:59,882 INFO L125 PetriNetUnfolderBase]: For 619/619 co-relation queries the response was YES. [2024-11-08 18:06:59,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 899 conditions, 221 events. 58/221 cut-off events. For 619/619 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 787 event pairs, 24 based on Foata normal form. 3/224 useless extension candidates. Maximal degree in co-relation 808. Up to 96 conditions per place. [2024-11-08 18:06:59,884 INFO L140 encePairwiseOnDemand]: 18/30 looper letters, 55 selfloop transitions, 34 changer transitions 7/106 dead transitions. [2024-11-08 18:06:59,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 106 transitions, 1016 flow [2024-11-08 18:06:59,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 18:06:59,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-08 18:06:59,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 204 transitions. [2024-11-08 18:06:59,887 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37777777777777777 [2024-11-08 18:06:59,887 INFO L175 Difference]: Start difference. First operand has 121 places, 83 transitions, 701 flow. Second operand 18 states and 204 transitions. [2024-11-08 18:06:59,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 106 transitions, 1016 flow [2024-11-08 18:06:59,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 106 transitions, 981 flow, removed 9 selfloop flow, removed 3 redundant places. [2024-11-08 18:06:59,897 INFO L231 Difference]: Finished difference. Result has 139 places, 88 transitions, 823 flow [2024-11-08 18:06:59,897 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=823, PETRI_PLACES=139, PETRI_TRANSITIONS=88} [2024-11-08 18:06:59,898 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 108 predicate places. [2024-11-08 18:06:59,898 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 88 transitions, 823 flow [2024-11-08 18:06:59,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 11 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:06:59,899 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:06:59,899 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:06:59,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 18:06:59,899 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:06:59,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:59,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1071538266, now seen corresponding path program 3 times [2024-11-08 18:06:59,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:06:59,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40390503] [2024-11-08 18:06:59,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:59,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:06:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:07:05,194 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 18:07:05,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:07:05,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40390503] [2024-11-08 18:07:05,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40390503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:07:05,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:07:05,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:07:05,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519842629] [2024-11-08 18:07:05,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:07:05,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:07:05,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:07:05,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:07:05,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:07:05,293 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-08 18:07:05,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 88 transitions, 823 flow. Second operand has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 11 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:07:05,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:07:05,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-08 18:07:05,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:07:06,771 INFO L124 PetriNetUnfolderBase]: 58/228 cut-off events. [2024-11-08 18:07:06,772 INFO L125 PetriNetUnfolderBase]: For 733/733 co-relation queries the response was YES. [2024-11-08 18:07:06,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 982 conditions, 228 events. 58/228 cut-off events. For 733/733 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 857 event pairs, 28 based on Foata normal form. 3/231 useless extension candidates. Maximal degree in co-relation 908. Up to 103 conditions per place. [2024-11-08 18:07:06,775 INFO L140 encePairwiseOnDemand]: 18/30 looper letters, 56 selfloop transitions, 35 changer transitions 0/101 dead transitions. [2024-11-08 18:07:06,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 101 transitions, 1053 flow [2024-11-08 18:07:06,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:07:06,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 18:07:06,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 175 transitions. [2024-11-08 18:07:06,777 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3888888888888889 [2024-11-08 18:07:06,777 INFO L175 Difference]: Start difference. First operand has 139 places, 88 transitions, 823 flow. Second operand 15 states and 175 transitions. [2024-11-08 18:07:06,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 101 transitions, 1053 flow [2024-11-08 18:07:06,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 101 transitions, 991 flow, removed 7 selfloop flow, removed 9 redundant places. [2024-11-08 18:07:06,788 INFO L231 Difference]: Finished difference. Result has 145 places, 91 transitions, 888 flow [2024-11-08 18:07:06,788 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=888, PETRI_PLACES=145, PETRI_TRANSITIONS=91} [2024-11-08 18:07:06,789 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 114 predicate places. [2024-11-08 18:07:06,789 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 91 transitions, 888 flow [2024-11-08 18:07:06,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 11 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:07:06,790 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:07:06,790 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:07:06,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 18:07:06,790 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:07:06,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:07:06,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1102040406, now seen corresponding path program 4 times [2024-11-08 18:07:06,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:07:06,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293193324] [2024-11-08 18:07:06,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:07:06,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:07:06,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:07:12,150 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 18:07:12,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:07:12,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293193324] [2024-11-08 18:07:12,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293193324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:07:12,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:07:12,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:07:12,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511117420] [2024-11-08 18:07:12,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:07:12,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:07:12,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:07:12,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:07:12,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:07:12,249 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-08 18:07:12,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 91 transitions, 888 flow. Second operand has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 11 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:07:12,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:07:12,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-08 18:07:12,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:07:13,869 INFO L124 PetriNetUnfolderBase]: 61/237 cut-off events. [2024-11-08 18:07:13,869 INFO L125 PetriNetUnfolderBase]: For 884/884 co-relation queries the response was YES. [2024-11-08 18:07:13,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1066 conditions, 237 events. 61/237 cut-off events. For 884/884 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 948 event pairs, 21 based on Foata normal form. 3/240 useless extension candidates. Maximal degree in co-relation 990. Up to 98 conditions per place. [2024-11-08 18:07:13,872 INFO L140 encePairwiseOnDemand]: 17/30 looper letters, 62 selfloop transitions, 43 changer transitions 0/115 dead transitions. [2024-11-08 18:07:13,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 115 transitions, 1237 flow [2024-11-08 18:07:13,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 18:07:13,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-08 18:07:13,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 187 transitions. [2024-11-08 18:07:13,875 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38958333333333334 [2024-11-08 18:07:13,875 INFO L175 Difference]: Start difference. First operand has 145 places, 91 transitions, 888 flow. Second operand 16 states and 187 transitions. [2024-11-08 18:07:13,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 115 transitions, 1237 flow [2024-11-08 18:07:13,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 115 transitions, 1187 flow, removed 7 selfloop flow, removed 7 redundant places. [2024-11-08 18:07:13,888 INFO L231 Difference]: Finished difference. Result has 157 places, 100 transitions, 1036 flow [2024-11-08 18:07:13,888 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1036, PETRI_PLACES=157, PETRI_TRANSITIONS=100} [2024-11-08 18:07:13,889 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 126 predicate places. [2024-11-08 18:07:13,889 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 100 transitions, 1036 flow [2024-11-08 18:07:13,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 11 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:07:13,889 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:07:13,890 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:07:13,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 18:07:13,890 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:07:13,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:07:13,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1182142422, now seen corresponding path program 5 times [2024-11-08 18:07:13,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:07:13,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307599306] [2024-11-08 18:07:13,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:07:13,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:07:13,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:07:19,127 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 18:07:19,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:07:19,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307599306] [2024-11-08 18:07:19,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307599306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:07:19,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:07:19,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:07:19,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952193334] [2024-11-08 18:07:19,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:07:19,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:07:19,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:07:19,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:07:19,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:07:19,233 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:07:19,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 100 transitions, 1036 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:07:19,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:07:19,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:07:19,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:07:21,281 INFO L124 PetriNetUnfolderBase]: 56/244 cut-off events. [2024-11-08 18:07:21,281 INFO L125 PetriNetUnfolderBase]: For 1138/1138 co-relation queries the response was YES. [2024-11-08 18:07:21,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1176 conditions, 244 events. 56/244 cut-off events. For 1138/1138 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1041 event pairs, 28 based on Foata normal form. 3/247 useless extension candidates. Maximal degree in co-relation 1083. Up to 102 conditions per place. [2024-11-08 18:07:21,285 INFO L140 encePairwiseOnDemand]: 19/30 looper letters, 58 selfloop transitions, 40 changer transitions 0/113 dead transitions. [2024-11-08 18:07:21,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 113 transitions, 1320 flow [2024-11-08 18:07:21,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:07:21,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-08 18:07:21,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 176 transitions. [2024-11-08 18:07:21,292 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41904761904761906 [2024-11-08 18:07:21,292 INFO L175 Difference]: Start difference. First operand has 157 places, 100 transitions, 1036 flow. Second operand 14 states and 176 transitions. [2024-11-08 18:07:21,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 113 transitions, 1320 flow [2024-11-08 18:07:21,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 113 transitions, 1257 flow, removed 4 selfloop flow, removed 9 redundant places. [2024-11-08 18:07:21,310 INFO L231 Difference]: Finished difference. Result has 165 places, 105 transitions, 1146 flow [2024-11-08 18:07:21,311 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=978, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1146, PETRI_PLACES=165, PETRI_TRANSITIONS=105} [2024-11-08 18:07:21,314 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 134 predicate places. [2024-11-08 18:07:21,314 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 105 transitions, 1146 flow [2024-11-08 18:07:21,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:07:21,315 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:07:21,315 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:07:21,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 18:07:21,315 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:07:21,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:07:21,316 INFO L85 PathProgramCache]: Analyzing trace with hash 706076494, now seen corresponding path program 2 times [2024-11-08 18:07:21,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:07:21,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338280987] [2024-11-08 18:07:21,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:07:21,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:07:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:07:23,713 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 18:07:23,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:07:23,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338280987] [2024-11-08 18:07:23,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338280987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:07:23,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:07:23,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:07:23,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831915278] [2024-11-08 18:07:23,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:07:23,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:07:23,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:07:23,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:07:23,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:07:23,730 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 30 [2024-11-08 18:07:23,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 105 transitions, 1146 flow. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:07:23,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:07:23,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 30 [2024-11-08 18:07:23,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:07:24,643 INFO L124 PetriNetUnfolderBase]: 75/271 cut-off events. [2024-11-08 18:07:24,643 INFO L125 PetriNetUnfolderBase]: For 1171/1171 co-relation queries the response was YES. [2024-11-08 18:07:24,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1327 conditions, 271 events. 75/271 cut-off events. For 1171/1171 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1142 event pairs, 34 based on Foata normal form. 3/274 useless extension candidates. Maximal degree in co-relation 1223. Up to 122 conditions per place. [2024-11-08 18:07:24,651 INFO L140 encePairwiseOnDemand]: 19/30 looper letters, 84 selfloop transitions, 38 changer transitions 0/129 dead transitions. [2024-11-08 18:07:24,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 129 transitions, 1488 flow [2024-11-08 18:07:24,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 18:07:24,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-08 18:07:24,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 182 transitions. [2024-11-08 18:07:24,653 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3568627450980392 [2024-11-08 18:07:24,654 INFO L175 Difference]: Start difference. First operand has 165 places, 105 transitions, 1146 flow. Second operand 17 states and 182 transitions. [2024-11-08 18:07:24,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 129 transitions, 1488 flow [2024-11-08 18:07:24,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 129 transitions, 1442 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-11-08 18:07:24,672 INFO L231 Difference]: Finished difference. Result has 181 places, 114 transitions, 1242 flow [2024-11-08 18:07:24,674 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=1101, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1242, PETRI_PLACES=181, PETRI_TRANSITIONS=114} [2024-11-08 18:07:24,675 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 150 predicate places. [2024-11-08 18:07:24,675 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 114 transitions, 1242 flow [2024-11-08 18:07:24,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:07:24,677 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:07:24,677 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:07:24,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 18:07:24,677 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:07:24,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:07:24,678 INFO L85 PathProgramCache]: Analyzing trace with hash -195435871, now seen corresponding path program 1 times [2024-11-08 18:07:24,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:07:24,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236259416] [2024-11-08 18:07:24,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:07:24,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:07:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:07:29,570 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 18:07:29,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:07:29,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236259416] [2024-11-08 18:07:29,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236259416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:07:29,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:07:29,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:07:29,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13228291] [2024-11-08 18:07:29,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:07:29,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:07:29,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:07:29,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:07:29,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:07:29,654 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 30 [2024-11-08 18:07:29,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 114 transitions, 1242 flow. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:07:29,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:07:29,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 30 [2024-11-08 18:07:29,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:07:30,676 INFO L124 PetriNetUnfolderBase]: 74/268 cut-off events. [2024-11-08 18:07:30,676 INFO L125 PetriNetUnfolderBase]: For 1188/1188 co-relation queries the response was YES. [2024-11-08 18:07:30,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1364 conditions, 268 events. 74/268 cut-off events. For 1188/1188 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1135 event pairs, 2 based on Foata normal form. 2/270 useless extension candidates. Maximal degree in co-relation 1248. Up to 84 conditions per place. [2024-11-08 18:07:30,681 INFO L140 encePairwiseOnDemand]: 21/30 looper letters, 89 selfloop transitions, 33 changer transitions 0/129 dead transitions. [2024-11-08 18:07:30,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 129 transitions, 1564 flow [2024-11-08 18:07:30,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:07:30,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-08 18:07:30,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 125 transitions. [2024-11-08 18:07:30,683 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3787878787878788 [2024-11-08 18:07:30,683 INFO L175 Difference]: Start difference. First operand has 181 places, 114 transitions, 1242 flow. Second operand 11 states and 125 transitions. [2024-11-08 18:07:30,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 129 transitions, 1564 flow [2024-11-08 18:07:30,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 129 transitions, 1464 flow, removed 9 selfloop flow, removed 16 redundant places. [2024-11-08 18:07:30,700 INFO L231 Difference]: Finished difference. Result has 174 places, 113 transitions, 1200 flow [2024-11-08 18:07:30,701 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=1134, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1200, PETRI_PLACES=174, PETRI_TRANSITIONS=113} [2024-11-08 18:07:30,701 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 143 predicate places. [2024-11-08 18:07:30,701 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 113 transitions, 1200 flow [2024-11-08 18:07:30,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:07:30,702 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:07:30,702 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:07:30,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 18:07:30,703 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:07:30,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:07:30,703 INFO L85 PathProgramCache]: Analyzing trace with hash -196485446, now seen corresponding path program 1 times [2024-11-08 18:07:30,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:07:30,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39978664] [2024-11-08 18:07:30,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:07:30,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:07:30,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:07:35,908 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 18:07:35,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:07:35,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39978664] [2024-11-08 18:07:35,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39978664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:07:35,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:07:35,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:07:35,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023792662] [2024-11-08 18:07:35,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:07:35,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:07:35,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:07:35,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:07:35,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:07:36,012 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:07:36,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 113 transitions, 1200 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:07:36,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:07:36,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:07:36,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:07:38,063 INFO L124 PetriNetUnfolderBase]: 53/235 cut-off events. [2024-11-08 18:07:38,063 INFO L125 PetriNetUnfolderBase]: For 1302/1310 co-relation queries the response was YES. [2024-11-08 18:07:38,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1214 conditions, 235 events. 53/235 cut-off events. For 1302/1310 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1016 event pairs, 16 based on Foata normal form. 11/246 useless extension candidates. Maximal degree in co-relation 1119. Up to 112 conditions per place. [2024-11-08 18:07:38,067 INFO L140 encePairwiseOnDemand]: 19/30 looper letters, 69 selfloop transitions, 33 changer transitions 6/124 dead transitions. [2024-11-08 18:07:38,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 124 transitions, 1447 flow [2024-11-08 18:07:38,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 18:07:38,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-08 18:07:38,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 167 transitions. [2024-11-08 18:07:38,070 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4282051282051282 [2024-11-08 18:07:38,070 INFO L175 Difference]: Start difference. First operand has 174 places, 113 transitions, 1200 flow. Second operand 13 states and 167 transitions. [2024-11-08 18:07:38,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 124 transitions, 1447 flow [2024-11-08 18:07:38,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 124 transitions, 1385 flow, removed 1 selfloop flow, removed 9 redundant places. [2024-11-08 18:07:38,087 INFO L231 Difference]: Finished difference. Result has 177 places, 109 transitions, 1166 flow [2024-11-08 18:07:38,087 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=1121, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1166, PETRI_PLACES=177, PETRI_TRANSITIONS=109} [2024-11-08 18:07:38,088 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 146 predicate places. [2024-11-08 18:07:38,088 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 109 transitions, 1166 flow [2024-11-08 18:07:38,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:07:38,089 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:07:38,089 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:07:38,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 18:07:38,090 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:07:38,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:07:38,090 INFO L85 PathProgramCache]: Analyzing trace with hash -227765996, now seen corresponding path program 2 times [2024-11-08 18:07:38,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:07:38,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073648009] [2024-11-08 18:07:38,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:07:38,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:07:38,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:07:43,691 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 18:07:43,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:07:43,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073648009] [2024-11-08 18:07:43,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073648009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:07:43,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:07:43,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:07:43,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112574949] [2024-11-08 18:07:43,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:07:43,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:07:43,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:07:43,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:07:43,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:07:43,788 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:07:43,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 109 transitions, 1166 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:07:43,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:07:43,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:07:43,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:07:45,762 INFO L124 PetriNetUnfolderBase]: 47/222 cut-off events. [2024-11-08 18:07:45,762 INFO L125 PetriNetUnfolderBase]: For 1222/1222 co-relation queries the response was YES. [2024-11-08 18:07:45,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1108 conditions, 222 events. 47/222 cut-off events. For 1222/1222 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 901 event pairs, 18 based on Foata normal form. 6/228 useless extension candidates. Maximal degree in co-relation 1029. Up to 101 conditions per place. [2024-11-08 18:07:45,764 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 58 selfloop transitions, 29 changer transitions 11/113 dead transitions. [2024-11-08 18:07:45,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 113 transitions, 1318 flow [2024-11-08 18:07:45,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 18:07:45,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-08 18:07:45,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 164 transitions. [2024-11-08 18:07:45,765 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4205128205128205 [2024-11-08 18:07:45,765 INFO L175 Difference]: Start difference. First operand has 177 places, 109 transitions, 1166 flow. Second operand 13 states and 164 transitions. [2024-11-08 18:07:45,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 113 transitions, 1318 flow [2024-11-08 18:07:45,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 113 transitions, 1200 flow, removed 1 selfloop flow, removed 15 redundant places. [2024-11-08 18:07:45,779 INFO L231 Difference]: Finished difference. Result has 170 places, 98 transitions, 956 flow [2024-11-08 18:07:45,779 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=986, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=956, PETRI_PLACES=170, PETRI_TRANSITIONS=98} [2024-11-08 18:07:45,780 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 139 predicate places. [2024-11-08 18:07:45,780 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 98 transitions, 956 flow [2024-11-08 18:07:45,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:07:45,780 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:07:45,780 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:07:45,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 18:07:45,781 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:07:45,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:07:45,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1997358440, now seen corresponding path program 3 times [2024-11-08 18:07:45,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:07:45,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197844375] [2024-11-08 18:07:45,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:07:45,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:07:45,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:07:50,524 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 18:07:50,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:07:50,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197844375] [2024-11-08 18:07:50,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197844375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:07:50,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:07:50,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:07:50,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40897623] [2024-11-08 18:07:50,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:07:50,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:07:50,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:07:50,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:07:50,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:07:50,619 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:07:50,619 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 98 transitions, 956 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:07:50,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:07:50,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:07:50,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:07:52,696 INFO L124 PetriNetUnfolderBase]: 41/192 cut-off events. [2024-11-08 18:07:52,698 INFO L125 PetriNetUnfolderBase]: For 820/820 co-relation queries the response was YES. [2024-11-08 18:07:52,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 923 conditions, 192 events. 41/192 cut-off events. For 820/820 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 658 event pairs, 15 based on Foata normal form. 3/195 useless extension candidates. Maximal degree in co-relation 837. Up to 88 conditions per place. [2024-11-08 18:07:52,700 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 53 selfloop transitions, 28 changer transitions 8/103 dead transitions. [2024-11-08 18:07:52,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 103 transitions, 1121 flow [2024-11-08 18:07:52,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:07:52,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-08 18:07:52,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 174 transitions. [2024-11-08 18:07:52,703 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4142857142857143 [2024-11-08 18:07:52,703 INFO L175 Difference]: Start difference. First operand has 170 places, 98 transitions, 956 flow. Second operand 14 states and 174 transitions. [2024-11-08 18:07:52,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 103 transitions, 1121 flow [2024-11-08 18:07:52,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 103 transitions, 1011 flow, removed 3 selfloop flow, removed 16 redundant places. [2024-11-08 18:07:52,713 INFO L231 Difference]: Finished difference. Result has 157 places, 92 transitions, 832 flow [2024-11-08 18:07:52,713 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=817, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=832, PETRI_PLACES=157, PETRI_TRANSITIONS=92} [2024-11-08 18:07:52,714 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 126 predicate places. [2024-11-08 18:07:52,714 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 92 transitions, 832 flow [2024-11-08 18:07:52,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:07:52,714 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:07:52,714 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:07:52,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 18:07:52,714 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:07:52,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:07:52,717 INFO L85 PathProgramCache]: Analyzing trace with hash 2083567706, now seen corresponding path program 1 times [2024-11-08 18:07:52,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:07:52,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781002293] [2024-11-08 18:07:52,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:07:52,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:07:52,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:07:55,282 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 18:07:55,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:07:55,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781002293] [2024-11-08 18:07:55,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781002293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:07:55,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:07:55,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:07:55,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114091498] [2024-11-08 18:07:55,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:07:55,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:07:55,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:07:55,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:07:55,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:07:55,372 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:07:55,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 92 transitions, 832 flow. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:07:55,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:07:55,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:07:55,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:07:57,065 INFO L124 PetriNetUnfolderBase]: 43/199 cut-off events. [2024-11-08 18:07:57,065 INFO L125 PetriNetUnfolderBase]: For 670/670 co-relation queries the response was YES. [2024-11-08 18:07:57,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 903 conditions, 199 events. 43/199 cut-off events. For 670/670 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 694 event pairs, 16 based on Foata normal form. 3/202 useless extension candidates. Maximal degree in co-relation 829. Up to 83 conditions per place. [2024-11-08 18:07:57,067 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 57 selfloop transitions, 15 changer transitions 20/106 dead transitions. [2024-11-08 18:07:57,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 106 transitions, 1096 flow [2024-11-08 18:07:57,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:07:57,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 18:07:57,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 122 transitions. [2024-11-08 18:07:57,069 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45185185185185184 [2024-11-08 18:07:57,070 INFO L175 Difference]: Start difference. First operand has 157 places, 92 transitions, 832 flow. Second operand 9 states and 122 transitions. [2024-11-08 18:07:57,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 106 transitions, 1096 flow [2024-11-08 18:07:57,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 106 transitions, 1030 flow, removed 2 selfloop flow, removed 12 redundant places. [2024-11-08 18:07:57,080 INFO L231 Difference]: Finished difference. Result has 148 places, 82 transitions, 732 flow [2024-11-08 18:07:57,081 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=772, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=732, PETRI_PLACES=148, PETRI_TRANSITIONS=82} [2024-11-08 18:07:57,081 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 117 predicate places. [2024-11-08 18:07:57,081 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 82 transitions, 732 flow [2024-11-08 18:07:57,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:07:57,082 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:07:57,082 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:07:57,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 18:07:57,083 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:07:57,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:07:57,083 INFO L85 PathProgramCache]: Analyzing trace with hash 912236534, now seen corresponding path program 2 times [2024-11-08 18:07:57,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:07:57,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299648762] [2024-11-08 18:07:57,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:07:57,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:07:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:08:00,251 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 18:08:00,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:08:00,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299648762] [2024-11-08 18:08:00,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299648762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:08:00,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:08:00,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:08:00,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263773095] [2024-11-08 18:08:00,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:08:00,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:08:00,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:08:00,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:08:00,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:08:00,370 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:08:00,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 82 transitions, 732 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:08:00,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:08:00,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:08:00,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:08:01,474 INFO L124 PetriNetUnfolderBase]: 34/175 cut-off events. [2024-11-08 18:08:01,475 INFO L125 PetriNetUnfolderBase]: For 672/674 co-relation queries the response was YES. [2024-11-08 18:08:01,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 800 conditions, 175 events. 34/175 cut-off events. For 672/674 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 574 event pairs, 15 based on Foata normal form. 2/177 useless extension candidates. Maximal degree in co-relation 716. Up to 76 conditions per place. [2024-11-08 18:08:01,477 INFO L140 encePairwiseOnDemand]: 19/30 looper letters, 56 selfloop transitions, 19 changer transitions 7/96 dead transitions. [2024-11-08 18:08:01,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 96 transitions, 958 flow [2024-11-08 18:08:01,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:08:01,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-08 18:08:01,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 172 transitions. [2024-11-08 18:08:01,479 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4095238095238095 [2024-11-08 18:08:01,479 INFO L175 Difference]: Start difference. First operand has 148 places, 82 transitions, 732 flow. Second operand 14 states and 172 transitions. [2024-11-08 18:08:01,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 96 transitions, 958 flow [2024-11-08 18:08:01,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 96 transitions, 908 flow, removed 7 selfloop flow, removed 9 redundant places. [2024-11-08 18:08:01,488 INFO L231 Difference]: Finished difference. Result has 150 places, 84 transitions, 752 flow [2024-11-08 18:08:01,489 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=688, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=752, PETRI_PLACES=150, PETRI_TRANSITIONS=84} [2024-11-08 18:08:01,489 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 119 predicate places. [2024-11-08 18:08:01,490 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 84 transitions, 752 flow [2024-11-08 18:08:01,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:08:01,490 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:08:01,490 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:08:01,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 18:08:01,491 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:08:01,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:08:01,491 INFO L85 PathProgramCache]: Analyzing trace with hash 388569311, now seen corresponding path program 1 times [2024-11-08 18:08:01,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:08:01,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110685197] [2024-11-08 18:08:01,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:08:01,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:08:01,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:08:03,666 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 18:08:03,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:08:03,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110685197] [2024-11-08 18:08:03,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110685197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:08:03,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:08:03,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:08:03,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110158444] [2024-11-08 18:08:03,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:08:03,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:08:03,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:08:03,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:08:03,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:08:03,716 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-08 18:08:03,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 84 transitions, 752 flow. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 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) [2024-11-08 18:08:03,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:08:03,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-08 18:08:03,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:08:04,533 INFO L124 PetriNetUnfolderBase]: 35/168 cut-off events. [2024-11-08 18:08:04,533 INFO L125 PetriNetUnfolderBase]: For 580/580 co-relation queries the response was YES. [2024-11-08 18:08:04,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 787 conditions, 168 events. 35/168 cut-off events. For 580/580 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 499 event pairs, 9 based on Foata normal form. 2/170 useless extension candidates. Maximal degree in co-relation 701. Up to 47 conditions per place. [2024-11-08 18:08:04,535 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 54 selfloop transitions, 30 changer transitions 0/95 dead transitions. [2024-11-08 18:08:04,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 95 transitions, 966 flow [2024-11-08 18:08:04,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 18:08:04,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-08 18:08:04,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 147 transitions. [2024-11-08 18:08:04,537 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3769230769230769 [2024-11-08 18:08:04,537 INFO L175 Difference]: Start difference. First operand has 150 places, 84 transitions, 752 flow. Second operand 13 states and 147 transitions. [2024-11-08 18:08:04,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 95 transitions, 966 flow [2024-11-08 18:08:04,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 95 transitions, 905 flow, removed 5 selfloop flow, removed 15 redundant places. [2024-11-08 18:08:04,546 INFO L231 Difference]: Finished difference. Result has 142 places, 89 transitions, 773 flow [2024-11-08 18:08:04,546 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=773, PETRI_PLACES=142, PETRI_TRANSITIONS=89} [2024-11-08 18:08:04,547 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 111 predicate places. [2024-11-08 18:08:04,547 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 89 transitions, 773 flow [2024-11-08 18:08:04,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 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) [2024-11-08 18:08:04,547 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:08:04,548 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:08:04,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 18:08:04,548 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:08:04,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:08:04,549 INFO L85 PathProgramCache]: Analyzing trace with hash 413535194, now seen corresponding path program 3 times [2024-11-08 18:08:04,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:08:04,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866136393] [2024-11-08 18:08:04,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:08:04,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:08:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:08:06,954 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 18:08:06,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:08:06,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866136393] [2024-11-08 18:08:06,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866136393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:08:06,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:08:06,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:08:06,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510216261] [2024-11-08 18:08:06,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:08:06,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:08:06,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:08:06,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:08:06,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:08:07,006 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:08:07,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 89 transitions, 773 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:08:07,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:08:07,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:08:07,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:08:08,023 INFO L124 PetriNetUnfolderBase]: 29/157 cut-off events. [2024-11-08 18:08:08,024 INFO L125 PetriNetUnfolderBase]: For 531/533 co-relation queries the response was YES. [2024-11-08 18:08:08,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 739 conditions, 157 events. 29/157 cut-off events. For 531/533 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 452 event pairs, 7 based on Foata normal form. 3/160 useless extension candidates. Maximal degree in co-relation 619. Up to 61 conditions per place. [2024-11-08 18:08:08,025 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 52 selfloop transitions, 21 changer transitions 9/95 dead transitions. [2024-11-08 18:08:08,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 95 transitions, 953 flow [2024-11-08 18:08:08,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 18:08:08,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-08 18:08:08,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 191 transitions. [2024-11-08 18:08:08,028 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39791666666666664 [2024-11-08 18:08:08,028 INFO L175 Difference]: Start difference. First operand has 142 places, 89 transitions, 773 flow. Second operand 16 states and 191 transitions. [2024-11-08 18:08:08,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 95 transitions, 953 flow [2024-11-08 18:08:08,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 95 transitions, 916 flow, removed 3 selfloop flow, removed 7 redundant places. [2024-11-08 18:08:08,038 INFO L231 Difference]: Finished difference. Result has 152 places, 82 transitions, 736 flow [2024-11-08 18:08:08,038 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=736, PETRI_PLACES=152, PETRI_TRANSITIONS=82} [2024-11-08 18:08:08,039 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 121 predicate places. [2024-11-08 18:08:08,039 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 82 transitions, 736 flow [2024-11-08 18:08:08,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:08:08,040 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:08:08,040 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:08:08,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-08 18:08:08,040 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:08:08,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:08:08,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1232790042, now seen corresponding path program 4 times [2024-11-08 18:08:08,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:08:08,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552139517] [2024-11-08 18:08:08,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:08:08,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:08:08,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:08:12,056 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 18:08:12,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:08:12,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552139517] [2024-11-08 18:08:12,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552139517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:08:12,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:08:12,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:08:12,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482066966] [2024-11-08 18:08:12,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:08:12,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:08:12,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:08:12,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:08:12,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:08:12,154 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:08:12,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 82 transitions, 736 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:08:12,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:08:12,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:08:12,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:08:14,005 INFO L124 PetriNetUnfolderBase]: 26/150 cut-off events. [2024-11-08 18:08:14,005 INFO L125 PetriNetUnfolderBase]: For 577/579 co-relation queries the response was YES. [2024-11-08 18:08:14,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 150 events. 26/150 cut-off events. For 577/579 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 410 event pairs, 8 based on Foata normal form. 5/155 useless extension candidates. Maximal degree in co-relation 666. Up to 62 conditions per place. [2024-11-08 18:08:14,007 INFO L140 encePairwiseOnDemand]: 21/30 looper letters, 52 selfloop transitions, 14 changer transitions 11/90 dead transitions. [2024-11-08 18:08:14,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 90 transitions, 929 flow [2024-11-08 18:08:14,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 18:08:14,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-08 18:08:14,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 158 transitions. [2024-11-08 18:08:14,009 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40512820512820513 [2024-11-08 18:08:14,009 INFO L175 Difference]: Start difference. First operand has 152 places, 82 transitions, 736 flow. Second operand 13 states and 158 transitions. [2024-11-08 18:08:14,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 90 transitions, 929 flow [2024-11-08 18:08:14,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 90 transitions, 856 flow, removed 2 selfloop flow, removed 17 redundant places. [2024-11-08 18:08:14,017 INFO L231 Difference]: Finished difference. Result has 145 places, 76 transitions, 653 flow [2024-11-08 18:08:14,017 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=668, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=653, PETRI_PLACES=145, PETRI_TRANSITIONS=76} [2024-11-08 18:08:14,018 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 114 predicate places. [2024-11-08 18:08:14,018 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 76 transitions, 653 flow [2024-11-08 18:08:14,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:08:14,018 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:08:14,019 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:08:14,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-08 18:08:14,019 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:08:14,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:08:14,020 INFO L85 PathProgramCache]: Analyzing trace with hash -2008290246, now seen corresponding path program 4 times [2024-11-08 18:08:14,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:08:14,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229344861] [2024-11-08 18:08:14,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:08:14,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:08:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:08:18,634 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 18:08:18,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:08:18,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229344861] [2024-11-08 18:08:18,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229344861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:08:18,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:08:18,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:08:18,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830623341] [2024-11-08 18:08:18,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:08:18,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:08:18,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:08:18,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:08:18,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:08:18,733 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:08:18,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 76 transitions, 653 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:08:18,734 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:08:18,734 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:08:18,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:08:20,228 INFO L124 PetriNetUnfolderBase]: 21/132 cut-off events. [2024-11-08 18:08:20,228 INFO L125 PetriNetUnfolderBase]: For 488/488 co-relation queries the response was YES. [2024-11-08 18:08:20,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 612 conditions, 132 events. 21/132 cut-off events. For 488/488 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 306 event pairs, 8 based on Foata normal form. 3/135 useless extension candidates. Maximal degree in co-relation 558. Up to 49 conditions per place. [2024-11-08 18:08:20,230 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 46 selfloop transitions, 10 changer transitions 9/78 dead transitions. [2024-11-08 18:08:20,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 78 transitions, 773 flow [2024-11-08 18:08:20,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 18:08:20,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-08 18:08:20,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 145 transitions. [2024-11-08 18:08:20,232 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4027777777777778 [2024-11-08 18:08:20,232 INFO L175 Difference]: Start difference. First operand has 145 places, 76 transitions, 653 flow. Second operand 12 states and 145 transitions. [2024-11-08 18:08:20,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 78 transitions, 773 flow [2024-11-08 18:08:20,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 78 transitions, 727 flow, removed 3 selfloop flow, removed 14 redundant places. [2024-11-08 18:08:20,238 INFO L231 Difference]: Finished difference. Result has 135 places, 68 transitions, 559 flow [2024-11-08 18:08:20,239 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=583, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=559, PETRI_PLACES=135, PETRI_TRANSITIONS=68} [2024-11-08 18:08:20,239 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 104 predicate places. [2024-11-08 18:08:20,239 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 68 transitions, 559 flow [2024-11-08 18:08:20,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:08:20,240 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:08:20,240 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:08:20,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-08 18:08:20,240 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:08:20,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:08:20,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1763544369, now seen corresponding path program 1 times [2024-11-08 18:08:20,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:08:20,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250681208] [2024-11-08 18:08:20,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:08:20,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:08:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:08:24,425 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 18:08:24,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:08:24,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250681208] [2024-11-08 18:08:24,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250681208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:08:24,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:08:24,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:08:24,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670573117] [2024-11-08 18:08:24,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:08:24,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:08:24,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:08:24,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:08:24,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:08:24,517 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:08:24,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 68 transitions, 559 flow. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:08:24,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:08:24,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:08:24,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:08:25,283 INFO L124 PetriNetUnfolderBase]: 18/114 cut-off events. [2024-11-08 18:08:25,283 INFO L125 PetriNetUnfolderBase]: For 402/402 co-relation queries the response was YES. [2024-11-08 18:08:25,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 514 conditions, 114 events. 18/114 cut-off events. For 402/402 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 200 event pairs, 3 based on Foata normal form. 2/116 useless extension candidates. Maximal degree in co-relation 471. Up to 31 conditions per place. [2024-11-08 18:08:25,284 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 38 selfloop transitions, 8 changer transitions 14/71 dead transitions. [2024-11-08 18:08:25,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 71 transitions, 672 flow [2024-11-08 18:08:25,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:08:25,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-08 18:08:25,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 120 transitions. [2024-11-08 18:08:25,285 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4 [2024-11-08 18:08:25,285 INFO L175 Difference]: Start difference. First operand has 135 places, 68 transitions, 559 flow. Second operand 10 states and 120 transitions. [2024-11-08 18:08:25,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 71 transitions, 672 flow [2024-11-08 18:08:25,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 71 transitions, 628 flow, removed 2 selfloop flow, removed 13 redundant places. [2024-11-08 18:08:25,291 INFO L231 Difference]: Finished difference. Result has 114 places, 57 transitions, 472 flow [2024-11-08 18:08:25,292 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=472, PETRI_PLACES=114, PETRI_TRANSITIONS=57} [2024-11-08 18:08:25,292 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 83 predicate places. [2024-11-08 18:08:25,293 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 57 transitions, 472 flow [2024-11-08 18:08:25,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:08:25,293 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:08:25,293 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:08:25,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-08 18:08:25,294 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:08:25,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:08:25,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1848196573, now seen corresponding path program 1 times [2024-11-08 18:08:25,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:08:25,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116653353] [2024-11-08 18:08:25,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:08:25,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:08:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:08:29,359 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 18:08:29,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:08:29,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116653353] [2024-11-08 18:08:29,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116653353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:08:29,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:08:29,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:08:29,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47001661] [2024-11-08 18:08:29,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:08:29,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:08:29,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:08:29,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:08:29,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:08:29,464 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:08:29,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 57 transitions, 472 flow. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:08:29,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:08:29,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:08:29,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:08:30,406 INFO L124 PetriNetUnfolderBase]: 9/83 cut-off events. [2024-11-08 18:08:30,406 INFO L125 PetriNetUnfolderBase]: For 355/355 co-relation queries the response was YES. [2024-11-08 18:08:30,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 83 events. 9/83 cut-off events. For 355/355 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 73 event pairs, 1 based on Foata normal form. 2/85 useless extension candidates. Maximal degree in co-relation 369. Up to 25 conditions per place. [2024-11-08 18:08:30,407 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 36 selfloop transitions, 3 changer transitions 13/61 dead transitions. [2024-11-08 18:08:30,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 61 transitions, 596 flow [2024-11-08 18:08:30,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:08:30,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 18:08:30,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 107 transitions. [2024-11-08 18:08:30,408 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3962962962962963 [2024-11-08 18:08:30,408 INFO L175 Difference]: Start difference. First operand has 114 places, 57 transitions, 472 flow. Second operand 9 states and 107 transitions. [2024-11-08 18:08:30,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 61 transitions, 596 flow [2024-11-08 18:08:30,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 61 transitions, 555 flow, removed 1 selfloop flow, removed 13 redundant places. [2024-11-08 18:08:30,411 INFO L231 Difference]: Finished difference. Result has 99 places, 48 transitions, 402 flow [2024-11-08 18:08:30,411 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=402, PETRI_PLACES=99, PETRI_TRANSITIONS=48} [2024-11-08 18:08:30,412 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 68 predicate places. [2024-11-08 18:08:30,412 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 48 transitions, 402 flow [2024-11-08 18:08:30,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:08:30,412 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:08:30,413 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:08:30,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-08 18:08:30,413 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:08:30,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:08:30,413 INFO L85 PathProgramCache]: Analyzing trace with hash -91200877, now seen corresponding path program 2 times [2024-11-08 18:08:30,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:08:30,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025429888] [2024-11-08 18:08:30,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:08:30,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:08:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:08:33,389 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 18:08:33,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:08:33,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025429888] [2024-11-08 18:08:33,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025429888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:08:33,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:08:33,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:08:33,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584395514] [2024-11-08 18:08:33,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:08:33,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:08:33,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:08:33,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:08:33,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:08:33,430 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:08:33,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 48 transitions, 402 flow. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:08:33,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:08:33,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:08:33,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:08:34,663 INFO L124 PetriNetUnfolderBase]: 4/69 cut-off events. [2024-11-08 18:08:34,663 INFO L125 PetriNetUnfolderBase]: For 333/333 co-relation queries the response was YES. [2024-11-08 18:08:34,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 338 conditions, 69 events. 4/69 cut-off events. For 333/333 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 2/71 useless extension candidates. Maximal degree in co-relation 312. Up to 25 conditions per place. [2024-11-08 18:08:34,664 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 29 selfloop transitions, 4 changer transitions 9/51 dead transitions. [2024-11-08 18:08:34,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 51 transitions, 508 flow [2024-11-08 18:08:34,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:08:34,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 18:08:34,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 106 transitions. [2024-11-08 18:08:34,665 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3925925925925926 [2024-11-08 18:08:34,665 INFO L175 Difference]: Start difference. First operand has 99 places, 48 transitions, 402 flow. Second operand 9 states and 106 transitions. [2024-11-08 18:08:34,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 51 transitions, 508 flow [2024-11-08 18:08:34,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 51 transitions, 465 flow, removed 12 selfloop flow, removed 11 redundant places. [2024-11-08 18:08:34,670 INFO L231 Difference]: Finished difference. Result has 87 places, 42 transitions, 356 flow [2024-11-08 18:08:34,671 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=356, PETRI_PLACES=87, PETRI_TRANSITIONS=42} [2024-11-08 18:08:34,671 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 56 predicate places. [2024-11-08 18:08:34,671 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 42 transitions, 356 flow [2024-11-08 18:08:34,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:08:34,672 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:08:34,672 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:08:34,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-08 18:08:34,673 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:08:34,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:08:34,673 INFO L85 PathProgramCache]: Analyzing trace with hash -419765563, now seen corresponding path program 1 times [2024-11-08 18:08:34,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:08:34,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762122888] [2024-11-08 18:08:34,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:08:34,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:08:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:08:37,023 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 18:08:37,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:08:37,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762122888] [2024-11-08 18:08:37,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762122888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:08:37,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:08:37,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:08:37,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160932918] [2024-11-08 18:08:37,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:08:37,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:08:37,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:08:37,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:08:37,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:08:37,063 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:08:37,063 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 42 transitions, 356 flow. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 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) [2024-11-08 18:08:37,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:08:37,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:08:37,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:08:37,365 INFO L124 PetriNetUnfolderBase]: 1/56 cut-off events. [2024-11-08 18:08:37,365 INFO L125 PetriNetUnfolderBase]: For 305/305 co-relation queries the response was YES. [2024-11-08 18:08:37,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 56 events. 1/56 cut-off events. For 305/305 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 1/57 useless extension candidates. Maximal degree in co-relation 249. Up to 25 conditions per place. [2024-11-08 18:08:37,365 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 0 selfloop transitions, 0 changer transitions 41/41 dead transitions. [2024-11-08 18:08:37,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 41 transitions, 411 flow [2024-11-08 18:08:37,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:08:37,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-08 18:08:37,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 87 transitions. [2024-11-08 18:08:37,366 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3625 [2024-11-08 18:08:37,366 INFO L175 Difference]: Start difference. First operand has 87 places, 42 transitions, 356 flow. Second operand 8 states and 87 transitions. [2024-11-08 18:08:37,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 41 transitions, 411 flow [2024-11-08 18:08:37,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 41 transitions, 393 flow, removed 2 selfloop flow, removed 9 redundant places. [2024-11-08 18:08:37,370 INFO L231 Difference]: Finished difference. Result has 76 places, 0 transitions, 0 flow [2024-11-08 18:08:37,370 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=76, PETRI_TRANSITIONS=0} [2024-11-08 18:08:37,370 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 45 predicate places. [2024-11-08 18:08:37,370 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 0 transitions, 0 flow [2024-11-08 18:08:37,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 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) [2024-11-08 18:08:37,373 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2024-11-08 18:08:37,374 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2024-11-08 18:08:37,374 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2024-11-08 18:08:37,374 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2024-11-08 18:08:37,375 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-11-08 18:08:37,375 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2024-11-08 18:08:37,375 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2024-11-08 18:08:37,375 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2024-11-08 18:08:37,375 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2024-11-08 18:08:37,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-08 18:08:37,376 INFO L407 BasicCegarLoop]: Path program histogram: [5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:08:37,383 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 18:08:37,383 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:08:37,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:08:37 BasicIcfg [2024-11-08 18:08:37,389 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:08:37,389 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:08:37,390 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:08:37,390 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:08:37,391 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:06:22" (3/4) ... [2024-11-08 18:08:37,393 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 18:08:37,397 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-08 18:08:37,402 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 86 nodes and edges [2024-11-08 18:08:37,403 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-08 18:08:37,403 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-08 18:08:37,510 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 18:08:37,511 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 18:08:37,511 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:08:37,512 INFO L158 Benchmark]: Toolchain (without parser) took 137724.40ms. Allocated memory was 125.8MB in the beginning and 903.9MB in the end (delta: 778.0MB). Free memory was 86.5MB in the beginning and 502.6MB in the end (delta: -416.1MB). Peak memory consumption was 365.5MB. Max. memory is 16.1GB. [2024-11-08 18:08:37,512 INFO L158 Benchmark]: CDTParser took 1.39ms. Allocated memory is still 125.8MB. Free memory was 90.2MB in the beginning and 90.2MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:08:37,513 INFO L158 Benchmark]: CACSL2BoogieTranslator took 973.52ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 86.5MB in the beginning and 128.4MB in the end (delta: -41.9MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2024-11-08 18:08:37,513 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.81ms. Allocated memory is still 165.7MB. Free memory was 128.4MB in the beginning and 125.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:08:37,514 INFO L158 Benchmark]: Boogie Preprocessor took 108.27ms. Allocated memory is still 165.7MB. Free memory was 125.1MB in the beginning and 122.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:08:37,515 INFO L158 Benchmark]: RCFGBuilder took 1225.31ms. Allocated memory is still 165.7MB. Free memory was 122.1MB in the beginning and 87.3MB in the end (delta: 34.8MB). Peak memory consumption was 54.7MB. Max. memory is 16.1GB. [2024-11-08 18:08:37,516 INFO L158 Benchmark]: TraceAbstraction took 135182.30ms. Allocated memory was 165.7MB in the beginning and 903.9MB in the end (delta: 738.2MB). Free memory was 87.3MB in the beginning and 506.8MB in the end (delta: -419.5MB). Peak memory consumption was 318.7MB. Max. memory is 16.1GB. [2024-11-08 18:08:37,516 INFO L158 Benchmark]: Witness Printer took 121.71ms. Allocated memory is still 903.9MB. Free memory was 506.8MB in the beginning and 502.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:08:37,519 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.39ms. Allocated memory is still 125.8MB. Free memory was 90.2MB in the beginning and 90.2MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 973.52ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 86.5MB in the beginning and 128.4MB in the end (delta: -41.9MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.81ms. Allocated memory is still 165.7MB. Free memory was 128.4MB in the beginning and 125.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 108.27ms. Allocated memory is still 165.7MB. Free memory was 125.1MB in the beginning and 122.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1225.31ms. Allocated memory is still 165.7MB. Free memory was 122.1MB in the beginning and 87.3MB in the end (delta: 34.8MB). Peak memory consumption was 54.7MB. Max. memory is 16.1GB. * TraceAbstraction took 135182.30ms. Allocated memory was 165.7MB in the beginning and 903.9MB in the end (delta: 738.2MB). Free memory was 87.3MB in the beginning and 506.8MB in the end (delta: -419.5MB). Peak memory consumption was 318.7MB. Max. memory is 16.1GB. * Witness Printer took 121.71ms. Allocated memory is still 903.9MB. Free memory was 506.8MB in the beginning and 502.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 943]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 943]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: 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 3 procedures, 40 locations, 9 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: 135.0s, OverallIterations: 31, TraceHistogramMax: 10, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 35.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1567 SdHoareTripleChecker+Valid, 9.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1398 mSDsluCounter, 1822 SdHoareTripleChecker+Invalid, 8.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1707 mSDsCounter, 154 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5328 IncrementalHoareTripleChecker+Invalid, 5482 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 154 mSolverCounterUnsat, 115 mSDtfsCounter, 5328 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 628 GetRequests, 164 SyntacticMatches, 11 SemanticMatches, 453 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1380 ImplicationChecksByTransitivity, 38.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1242occurred in iteration=17, InterpolantAutomatonStates: 360, 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, 1.7s SatisfiabilityAnalysisTime, 94.8s InterpolantComputationTime, 1509 NumberOfCodeBlocks, 1469 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 1538 ConstructedInterpolants, 0 QuantifiedInterpolants, 109716 SizeOfPredicates, 25 NumberOfNonLiveVariables, 1144 ConjunctsInSsa, 93 ConjunctsInUnsatCore, 40 InterpolantComputations, 28 PerfectInterpolantSequences, 4483/4913 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-08 18:08:37,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71aa7bbd-aa10-4d57-8a2f-842811f5531a/bin/uautomizer-verify-jihMAELWvX/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