./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:34:25,227 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:34:25,303 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 03:34:25,309 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:34:25,310 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:34:25,340 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:34:25,341 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:34:25,341 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:34:25,346 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:34:25,346 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:34:25,346 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:34:25,346 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:34:25,347 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:34:25,347 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:34:25,347 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:34:25,347 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:34:25,347 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:34:25,347 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:34:25,348 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:34:25,348 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:34:25,348 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:34:25,348 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:34:25,348 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:34:25,348 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:34:25,348 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 03:34:25,348 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:34:25,349 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:34:25,349 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:34:25,349 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:34:25,349 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:34:25,349 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:34:25,349 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:34:25,349 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:34:25,349 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:34:25,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:34:25,350 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:34:25,350 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:34:25,350 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:34:25,350 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:34:25,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:34:25,350 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:34:25,350 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:34:25,351 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:34:25,351 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:34:25,351 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:34:25,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:34:25,351 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:34:25,351 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:34:25,351 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:34:25,351 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:34:25,351 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb [2024-11-28 03:34:25,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:34:25,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:34:25,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:34:25,735 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:34:25,736 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:34:25,737 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2024-11-28 03:34:29,202 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/data/7e971d3fa/3df8f9f429884316b656b4524aac20c8/FLAG3a9f05c84 [2024-11-28 03:34:29,649 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:34:29,654 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2024-11-28 03:34:29,689 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/data/7e971d3fa/3df8f9f429884316b656b4524aac20c8/FLAG3a9f05c84 [2024-11-28 03:34:29,715 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/data/7e971d3fa/3df8f9f429884316b656b4524aac20c8 [2024-11-28 03:34:29,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:34:29,721 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:34:29,723 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:34:29,723 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:34:29,730 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:34:29,731 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:34:29" (1/1) ... [2024-11-28 03:34:29,734 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@613a7dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:34:29, skipping insertion in model container [2024-11-28 03:34:29,735 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:34:29" (1/1) ... [2024-11-28 03:34:29,796 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:34:30,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:34:30,559 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:34:30,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:34:30,726 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:34:30,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:34:30 WrapperNode [2024-11-28 03:34:30,727 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:34:30,728 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:34:30,729 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:34:30,729 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:34:30,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:34:30" (1/1) ... [2024-11-28 03:34:30,753 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:34:30" (1/1) ... [2024-11-28 03:34:30,794 INFO L138 Inliner]: procedures = 265, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 137 [2024-11-28 03:34:30,794 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:34:30,795 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:34:30,795 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:34:30,795 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:34:30,805 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:34:30" (1/1) ... [2024-11-28 03:34:30,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:34:30" (1/1) ... [2024-11-28 03:34:30,810 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:34:30" (1/1) ... [2024-11-28 03:34:30,827 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]. [2024-11-28 03:34:30,827 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:34:30" (1/1) ... [2024-11-28 03:34:30,828 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:34:30" (1/1) ... [2024-11-28 03:34:30,837 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:34:30" (1/1) ... [2024-11-28 03:34:30,838 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:34:30" (1/1) ... [2024-11-28 03:34:30,842 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:34:30" (1/1) ... [2024-11-28 03:34:30,844 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:34:30" (1/1) ... [2024-11-28 03:34:30,845 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:34:30" (1/1) ... [2024-11-28 03:34:30,848 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:34:30,849 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:34:30,849 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:34:30,849 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:34:30,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:34:30" (1/1) ... [2024-11-28 03:34:30,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:34:30,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:34:30,913 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:34:30,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:34:30,955 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 03:34:30,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 03:34:30,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:34:30,956 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 03:34:30,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:34:30,956 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-28 03:34:30,956 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-28 03:34:30,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:34:30,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:34:30,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:34:30,959 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:34:31,184 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:34:31,187 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:34:31,714 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:34:31,717 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:34:32,324 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:34:32,327 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 03:34:32,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:34:32 BoogieIcfgContainer [2024-11-28 03:34:32,327 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:34:32,331 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:34:32,332 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:34:32,338 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:34:32,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:34:29" (1/3) ... [2024-11-28 03:34:32,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38993ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:34:32, skipping insertion in model container [2024-11-28 03:34:32,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:34:30" (2/3) ... [2024-11-28 03:34:32,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38993ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:34:32, skipping insertion in model container [2024-11-28 03:34:32,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:34:32" (3/3) ... [2024-11-28 03:34:32,344 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_08-tricky_address3.i [2024-11-28 03:34:32,364 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:34:32,368 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_08-tricky_address3.i that has 2 procedures, 31 locations, 1 initial locations, 1 loop locations, and 8 error locations. [2024-11-28 03:34:32,368 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:34:32,437 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:34:32,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 31 transitions, 66 flow [2024-11-28 03:34:32,576 INFO L124 PetriNetUnfolderBase]: 1/30 cut-off events. [2024-11-28 03:34:32,582 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:34:32,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 30 events. 1/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 7. Up to 2 conditions per place. [2024-11-28 03:34:32,586 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 31 transitions, 66 flow [2024-11-28 03:34:32,594 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 30 transitions, 63 flow [2024-11-28 03:34:32,610 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:34:32,629 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;@a513402, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:34:32,629 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-28 03:34:32,639 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:34:32,640 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-28 03:34:32,640 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:34:32,640 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:34:32,641 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-28 03:34:32,642 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:34:32,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:32,652 INFO L85 PathProgramCache]: Analyzing trace with hash 352925, now seen corresponding path program 1 times [2024-11-28 03:34:32,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:32,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221852109] [2024-11-28 03:34:32,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:32,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:33,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:34:33,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:33,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221852109] [2024-11-28 03:34:33,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221852109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:34:33,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:34:33,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:34:33,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168339322] [2024-11-28 03:34:33,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:34:33,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:34:33,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:33,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:34:33,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:34:33,168 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-28 03:34:33,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 30 transitions, 63 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2024-11-28 03:34:33,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:34:33,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-28 03:34:33,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:34:33,410 INFO L124 PetriNetUnfolderBase]: 43/147 cut-off events. [2024-11-28 03:34:33,412 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:34:33,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 147 events. 43/147 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 550 event pairs, 42 based on Foata normal form. 1/131 useless extension candidates. Maximal degree in co-relation 233. Up to 105 conditions per place. [2024-11-28 03:34:33,416 INFO L140 encePairwiseOnDemand]: 25/31 looper letters, 19 selfloop transitions, 3 changer transitions 0/32 dead transitions. [2024-11-28 03:34:33,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 32 transitions, 111 flow [2024-11-28 03:34:33,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:34:33,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:34:33,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 69 transitions. [2024-11-28 03:34:33,435 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5564516129032258 [2024-11-28 03:34:33,438 INFO L175 Difference]: Start difference. First operand has 33 places, 30 transitions, 63 flow. Second operand 4 states and 69 transitions. [2024-11-28 03:34:33,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 32 transitions, 111 flow [2024-11-28 03:34:33,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 32 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:34:33,450 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 86 flow [2024-11-28 03:34:33,453 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=86, PETRI_PLACES=37, PETRI_TRANSITIONS=32} [2024-11-28 03:34:33,457 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 4 predicate places. [2024-11-28 03:34:33,458 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 86 flow [2024-11-28 03:34:33,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2024-11-28 03:34:33,459 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:34:33,459 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-28 03:34:33,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:34:33,460 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:34:33,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:33,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1924399320, now seen corresponding path program 1 times [2024-11-28 03:34:33,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:33,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828875081] [2024-11-28 03:34:33,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:33,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:33,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:33,810 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:34:33,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:33,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828875081] [2024-11-28 03:34:33,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828875081] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:34:33,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001322960] [2024-11-28 03:34:33,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:33,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:33,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:34:33,818 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:34:33,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:34:33,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:33,969 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:34:33,975 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:34:34,057 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:34:34,057 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:34:34,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001322960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:34:34,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:34:34,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-28 03:34:34,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884970690] [2024-11-28 03:34:34,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:34:34,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:34:34,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:34,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:34:34,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:34:34,082 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-28 03:34:34,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 86 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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) [2024-11-28 03:34:34,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:34:34,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-28 03:34:34,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:34:34,315 INFO L124 PetriNetUnfolderBase]: 43/146 cut-off events. [2024-11-28 03:34:34,315 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 03:34:34,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 146 events. 43/146 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 547 event pairs, 42 based on Foata normal form. 1/130 useless extension candidates. Maximal degree in co-relation 250. Up to 100 conditions per place. [2024-11-28 03:34:34,318 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 15 selfloop transitions, 6 changer transitions 0/31 dead transitions. [2024-11-28 03:34:34,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 31 transitions, 124 flow [2024-11-28 03:34:34,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:34:34,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:34:34,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 88 transitions. [2024-11-28 03:34:34,359 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4731182795698925 [2024-11-28 03:34:34,359 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 86 flow. Second operand 6 states and 88 transitions. [2024-11-28 03:34:34,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 31 transitions, 124 flow [2024-11-28 03:34:34,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 31 transitions, 122 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:34:34,361 INFO L231 Difference]: Finished difference. Result has 40 places, 31 transitions, 92 flow [2024-11-28 03:34:34,361 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=92, PETRI_PLACES=40, PETRI_TRANSITIONS=31} [2024-11-28 03:34:34,362 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 7 predicate places. [2024-11-28 03:34:34,362 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 31 transitions, 92 flow [2024-11-28 03:34:34,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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) [2024-11-28 03:34:34,363 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:34:34,364 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-28 03:34:34,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:34:34,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:34,569 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:34:34,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:34,570 INFO L85 PathProgramCache]: Analyzing trace with hash -473162876, now seen corresponding path program 1 times [2024-11-28 03:34:34,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:34,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173082183] [2024-11-28 03:34:34,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:34,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:34,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:34,648 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:34:34,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:34,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173082183] [2024-11-28 03:34:34,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173082183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:34:34,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:34:34,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:34:34,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366833564] [2024-11-28 03:34:34,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:34:34,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:34:34,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:34,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:34:34,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:34:34,658 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-28 03:34:34,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2024-11-28 03:34:34,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:34:34,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-28 03:34:34,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:34:34,762 INFO L124 PetriNetUnfolderBase]: 43/145 cut-off events. [2024-11-28 03:34:34,762 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-28 03:34:34,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 145 events. 43/145 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 547 event pairs, 42 based on Foata normal form. 1/130 useless extension candidates. Maximal degree in co-relation 246. Up to 103 conditions per place. [2024-11-28 03:34:34,764 INFO L140 encePairwiseOnDemand]: 28/31 looper letters, 16 selfloop transitions, 4 changer transitions 0/30 dead transitions. [2024-11-28 03:34:34,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 30 transitions, 128 flow [2024-11-28 03:34:34,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:34:34,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:34:34,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 52 transitions. [2024-11-28 03:34:34,766 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5591397849462365 [2024-11-28 03:34:34,766 INFO L175 Difference]: Start difference. First operand has 40 places, 31 transitions, 92 flow. Second operand 3 states and 52 transitions. [2024-11-28 03:34:34,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 30 transitions, 128 flow [2024-11-28 03:34:34,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 106 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-28 03:34:34,768 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 74 flow [2024-11-28 03:34:34,769 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2024-11-28 03:34:34,770 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 2 predicate places. [2024-11-28 03:34:34,770 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 74 flow [2024-11-28 03:34:34,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2024-11-28 03:34:34,770 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:34:34,771 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:34:34,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:34:34,771 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:34:34,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:34,772 INFO L85 PathProgramCache]: Analyzing trace with hash 134147993, now seen corresponding path program 1 times [2024-11-28 03:34:34,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:34,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332492804] [2024-11-28 03:34:34,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:34,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:34,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:34,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:34:34,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:34,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332492804] [2024-11-28 03:34:34,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332492804] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:34:34,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985021960] [2024-11-28 03:34:34,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:34,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:34,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:34:34,990 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:34:34,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:34:35,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:35,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:34:35,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:34:35,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:34:35,152 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:34:35,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:34:35,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985021960] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:34:35,204 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:34:35,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-28 03:34:35,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640932966] [2024-11-28 03:34:35,204 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:34:35,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:34:35,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:35,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:34:35,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:34:35,232 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-28 03:34:35,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 74 flow. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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) [2024-11-28 03:34:35,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:34:35,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-28 03:34:35,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:34:35,486 INFO L124 PetriNetUnfolderBase]: 43/149 cut-off events. [2024-11-28 03:34:35,487 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-28 03:34:35,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 149 events. 43/149 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 544 event pairs, 42 based on Foata normal form. 2/136 useless extension candidates. Maximal degree in co-relation 239. Up to 101 conditions per place. [2024-11-28 03:34:35,490 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 16 selfloop transitions, 7 changer transitions 0/33 dead transitions. [2024-11-28 03:34:35,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 33 transitions, 135 flow [2024-11-28 03:34:35,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:34:35,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 03:34:35,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 102 transitions. [2024-11-28 03:34:35,495 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4700460829493088 [2024-11-28 03:34:35,495 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 74 flow. Second operand 7 states and 102 transitions. [2024-11-28 03:34:35,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 33 transitions, 135 flow [2024-11-28 03:34:35,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 33 transitions, 121 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:34:35,501 INFO L231 Difference]: Finished difference. Result has 41 places, 33 transitions, 100 flow [2024-11-28 03:34:35,501 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=100, PETRI_PLACES=41, PETRI_TRANSITIONS=33} [2024-11-28 03:34:35,502 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 8 predicate places. [2024-11-28 03:34:35,502 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 33 transitions, 100 flow [2024-11-28 03:34:35,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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) [2024-11-28 03:34:35,502 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:34:35,502 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:34:35,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:34:35,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:35,703 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:34:35,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:35,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1470219911, now seen corresponding path program 2 times [2024-11-28 03:34:35,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:35,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229405266] [2024-11-28 03:34:35,705 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:34:35,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:35,762 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:34:35,763 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:34:37,454 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 03:34:37,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:37,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229405266] [2024-11-28 03:34:37,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229405266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:34:37,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:34:37,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:34:37,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860297637] [2024-11-28 03:34:37,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:34:37,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:34:37,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:37,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:34:37,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:34:37,489 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-28 03:34:37,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 33 transitions, 100 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) [2024-11-28 03:34:37,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:34:37,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-28 03:34:37,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:34:37,922 INFO L124 PetriNetUnfolderBase]: 49/151 cut-off events. [2024-11-28 03:34:37,922 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-28 03:34:37,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 151 events. 49/151 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 499 event pairs, 20 based on Foata normal form. 8/150 useless extension candidates. Maximal degree in co-relation 258. Up to 79 conditions per place. [2024-11-28 03:34:37,926 INFO L140 encePairwiseOnDemand]: 24/31 looper letters, 31 selfloop transitions, 5 changer transitions 6/50 dead transitions. [2024-11-28 03:34:37,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 50 transitions, 218 flow [2024-11-28 03:34:37,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:34:37,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:34:37,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 107 transitions. [2024-11-28 03:34:37,930 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5752688172043011 [2024-11-28 03:34:37,930 INFO L175 Difference]: Start difference. First operand has 41 places, 33 transitions, 100 flow. Second operand 6 states and 107 transitions. [2024-11-28 03:34:37,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 50 transitions, 218 flow [2024-11-28 03:34:37,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 50 transitions, 214 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:34:37,933 INFO L231 Difference]: Finished difference. Result has 47 places, 34 transitions, 123 flow [2024-11-28 03:34:37,933 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=123, PETRI_PLACES=47, PETRI_TRANSITIONS=34} [2024-11-28 03:34:37,937 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 14 predicate places. [2024-11-28 03:34:37,937 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 34 transitions, 123 flow [2024-11-28 03:34:37,937 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) [2024-11-28 03:34:37,937 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:34:37,938 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:34:37,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:34:37,938 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:34:37,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:37,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1469833811, now seen corresponding path program 1 times [2024-11-28 03:34:37,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:37,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524103802] [2024-11-28 03:34:37,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:37,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:37,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:38,074 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 03:34:38,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:38,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524103802] [2024-11-28 03:34:38,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524103802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:34:38,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:34:38,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:34:38,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597640539] [2024-11-28 03:34:38,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:34:38,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:34:38,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:38,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:34:38,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:34:38,087 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-28 03:34:38,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 34 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-28 03:34:38,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:34:38,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-28 03:34:38,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:34:38,263 INFO L124 PetriNetUnfolderBase]: 39/142 cut-off events. [2024-11-28 03:34:38,263 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-28 03:34:38,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 142 events. 39/142 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 532 event pairs, 2 based on Foata normal form. 7/135 useless extension candidates. Maximal degree in co-relation 288. Up to 59 conditions per place. [2024-11-28 03:34:38,265 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 34 selfloop transitions, 3 changer transitions 0/45 dead transitions. [2024-11-28 03:34:38,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 45 transitions, 233 flow [2024-11-28 03:34:38,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:34:38,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:34:38,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 76 transitions. [2024-11-28 03:34:38,270 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6129032258064516 [2024-11-28 03:34:38,270 INFO L175 Difference]: Start difference. First operand has 47 places, 34 transitions, 123 flow. Second operand 4 states and 76 transitions. [2024-11-28 03:34:38,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 45 transitions, 233 flow [2024-11-28 03:34:38,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 45 transitions, 222 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-28 03:34:38,273 INFO L231 Difference]: Finished difference. Result has 45 places, 33 transitions, 118 flow [2024-11-28 03:34:38,274 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=118, PETRI_PLACES=45, PETRI_TRANSITIONS=33} [2024-11-28 03:34:38,275 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 12 predicate places. [2024-11-28 03:34:38,277 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 33 transitions, 118 flow [2024-11-28 03:34:38,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-28 03:34:38,277 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:34:38,278 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:34:38,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:34:38,278 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:34:38,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:38,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1679792488, now seen corresponding path program 1 times [2024-11-28 03:34:38,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:38,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98702090] [2024-11-28 03:34:38,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:38,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:38,375 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 03:34:38,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:38,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98702090] [2024-11-28 03:34:38,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98702090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:34:38,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:34:38,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:34:38,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861759606] [2024-11-28 03:34:38,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:34:38,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:34:38,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:38,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:34:38,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:34:38,386 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-28 03:34:38,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 33 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-28 03:34:38,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:34:38,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-28 03:34:38,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:34:38,510 INFO L124 PetriNetUnfolderBase]: 33/118 cut-off events. [2024-11-28 03:34:38,510 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-28 03:34:38,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 118 events. 33/118 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 361 event pairs, 14 based on Foata normal form. 7/121 useless extension candidates. Maximal degree in co-relation 240. Up to 50 conditions per place. [2024-11-28 03:34:38,512 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 33 selfloop transitions, 3 changer transitions 0/44 dead transitions. [2024-11-28 03:34:38,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 44 transitions, 224 flow [2024-11-28 03:34:38,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:34:38,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:34:38,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 75 transitions. [2024-11-28 03:34:38,514 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6048387096774194 [2024-11-28 03:34:38,514 INFO L175 Difference]: Start difference. First operand has 45 places, 33 transitions, 118 flow. Second operand 4 states and 75 transitions. [2024-11-28 03:34:38,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 44 transitions, 224 flow [2024-11-28 03:34:38,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 44 transitions, 218 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:34:38,519 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 116 flow [2024-11-28 03:34:38,519 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=116, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2024-11-28 03:34:38,520 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 11 predicate places. [2024-11-28 03:34:38,520 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 116 flow [2024-11-28 03:34:38,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-28 03:34:38,520 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:34:38,520 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:34:38,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:34:38,524 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:34:38,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:38,525 INFO L85 PathProgramCache]: Analyzing trace with hash 533959951, now seen corresponding path program 1 times [2024-11-28 03:34:38,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:38,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29893024] [2024-11-28 03:34:38,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:38,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:38,732 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:34:38,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:38,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29893024] [2024-11-28 03:34:38,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29893024] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:34:38,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395511885] [2024-11-28 03:34:38,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:38,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:38,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:34:38,735 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:34:38,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:34:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:38,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:34:38,865 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:34:38,926 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:34:38,927 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:34:39,082 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:34:39,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395511885] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:34:39,082 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:34:39,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-28 03:34:39,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115731206] [2024-11-28 03:34:39,083 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:34:39,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:34:39,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:39,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:34:39,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:34:39,118 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-28 03:34:39,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 116 flow. Second operand has 18 states, 18 states have (on average 12.333333333333334) internal successors, (222), 18 states have internal predecessors, (222), 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) [2024-11-28 03:34:39,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:34:39,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-28 03:34:39,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:34:39,409 INFO L124 PetriNetUnfolderBase]: 33/135 cut-off events. [2024-11-28 03:34:39,409 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2024-11-28 03:34:39,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 135 events. 33/135 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 397 event pairs, 32 based on Foata normal form. 4/133 useless extension candidates. Maximal degree in co-relation 245. Up to 82 conditions per place. [2024-11-28 03:34:39,410 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 17 selfloop transitions, 15 changer transitions 0/40 dead transitions. [2024-11-28 03:34:39,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 40 transitions, 228 flow [2024-11-28 03:34:39,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:34:39,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 03:34:39,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 200 transitions. [2024-11-28 03:34:39,414 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43010752688172044 [2024-11-28 03:34:39,414 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 116 flow. Second operand 15 states and 200 transitions. [2024-11-28 03:34:39,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 40 transitions, 228 flow [2024-11-28 03:34:39,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 40 transitions, 222 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:34:39,420 INFO L231 Difference]: Finished difference. Result has 59 places, 40 transitions, 207 flow [2024-11-28 03:34:39,420 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=207, PETRI_PLACES=59, PETRI_TRANSITIONS=40} [2024-11-28 03:34:39,421 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 26 predicate places. [2024-11-28 03:34:39,421 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 40 transitions, 207 flow [2024-11-28 03:34:39,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 12.333333333333334) internal successors, (222), 18 states have internal predecessors, (222), 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) [2024-11-28 03:34:39,423 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:34:39,423 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:34:39,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 03:34:39,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:39,624 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:34:39,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:39,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1881374927, now seen corresponding path program 2 times [2024-11-28 03:34:39,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:39,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551947200] [2024-11-28 03:34:39,625 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:34:39,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:39,706 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:34:39,707 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:34:40,493 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-28 03:34:40,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:40,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551947200] [2024-11-28 03:34:40,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551947200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:34:40,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:34:40,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:34:40,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068893070] [2024-11-28 03:34:40,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:34:40,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:34:40,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:40,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:34:40,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:34:40,509 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-28 03:34:40,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 40 transitions, 207 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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) [2024-11-28 03:34:40,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:34:40,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-28 03:34:40,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:34:40,822 INFO L124 PetriNetUnfolderBase]: 36/136 cut-off events. [2024-11-28 03:34:40,822 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2024-11-28 03:34:40,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 136 events. 36/136 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 381 event pairs, 8 based on Foata normal form. 14/150 useless extension candidates. Maximal degree in co-relation 241. Up to 57 conditions per place. [2024-11-28 03:34:40,824 INFO L140 encePairwiseOnDemand]: 24/31 looper letters, 40 selfloop transitions, 6 changer transitions 4/56 dead transitions. [2024-11-28 03:34:40,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 56 transitions, 351 flow [2024-11-28 03:34:40,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:34:40,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:34:40,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 107 transitions. [2024-11-28 03:34:40,826 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5752688172043011 [2024-11-28 03:34:40,826 INFO L175 Difference]: Start difference. First operand has 59 places, 40 transitions, 207 flow. Second operand 6 states and 107 transitions. [2024-11-28 03:34:40,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 56 transitions, 351 flow [2024-11-28 03:34:40,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 56 transitions, 341 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-28 03:34:40,831 INFO L231 Difference]: Finished difference. Result has 64 places, 43 transitions, 237 flow [2024-11-28 03:34:40,832 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=237, PETRI_PLACES=64, PETRI_TRANSITIONS=43} [2024-11-28 03:34:40,832 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 31 predicate places. [2024-11-28 03:34:40,833 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 43 transitions, 237 flow [2024-11-28 03:34:40,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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) [2024-11-28 03:34:40,833 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:34:40,833 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:34:40,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:34:40,834 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:34:40,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:40,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1692721394, now seen corresponding path program 1 times [2024-11-28 03:34:40,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:40,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813377100] [2024-11-28 03:34:40,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:40,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:40,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:41,336 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:34:41,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:41,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813377100] [2024-11-28 03:34:41,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813377100] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:34:41,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443828879] [2024-11-28 03:34:41,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:41,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:41,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:34:41,340 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:34:41,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:34:41,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:41,481 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:34:41,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:34:41,581 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:34:41,581 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:34:41,895 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:34:41,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443828879] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:34:41,896 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:34:41,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-28 03:34:41,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361893995] [2024-11-28 03:34:41,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:34:41,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 03:34:41,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:41,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 03:34:41,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:34:41,938 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-28 03:34:41,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 43 transitions, 237 flow. Second operand has 23 states, 23 states have (on average 12.478260869565217) internal successors, (287), 23 states have internal predecessors, (287), 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) [2024-11-28 03:34:41,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:34:41,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-28 03:34:41,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:34:42,269 INFO L124 PetriNetUnfolderBase]: 32/135 cut-off events. [2024-11-28 03:34:42,269 INFO L125 PetriNetUnfolderBase]: For 176/176 co-relation queries the response was YES. [2024-11-28 03:34:42,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 393 conditions, 135 events. 32/135 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 326 event pairs, 28 based on Foata normal form. 3/137 useless extension candidates. Maximal degree in co-relation 370. Up to 81 conditions per place. [2024-11-28 03:34:42,271 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 20 selfloop transitions, 21 changer transitions 0/49 dead transitions. [2024-11-28 03:34:42,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 49 transitions, 373 flow [2024-11-28 03:34:42,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 03:34:42,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-28 03:34:42,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 271 transitions. [2024-11-28 03:34:42,274 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4162826420890937 [2024-11-28 03:34:42,274 INFO L175 Difference]: Start difference. First operand has 64 places, 43 transitions, 237 flow. Second operand 21 states and 271 transitions. [2024-11-28 03:34:42,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 49 transitions, 373 flow [2024-11-28 03:34:42,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 49 transitions, 365 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-28 03:34:42,279 INFO L231 Difference]: Finished difference. Result has 84 places, 49 transitions, 340 flow [2024-11-28 03:34:42,279 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=340, PETRI_PLACES=84, PETRI_TRANSITIONS=49} [2024-11-28 03:34:42,280 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 51 predicate places. [2024-11-28 03:34:42,280 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 49 transitions, 340 flow [2024-11-28 03:34:42,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.478260869565217) internal successors, (287), 23 states have internal predecessors, (287), 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) [2024-11-28 03:34:42,281 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:34:42,281 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:34:42,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 03:34:42,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 03:34:42,485 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:34:42,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:42,486 INFO L85 PathProgramCache]: Analyzing trace with hash 2095354355, now seen corresponding path program 2 times [2024-11-28 03:34:42,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:42,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935235549] [2024-11-28 03:34:42,486 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:34:42,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:42,595 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:34:42,595 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:34:52,487 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 03:34:52,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:52,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935235549] [2024-11-28 03:34:52,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935235549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:34:52,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:34:52,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:34:52,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854596174] [2024-11-28 03:34:52,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:34:52,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:34:52,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:52,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:34:52,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:34:52,532 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-28 03:34:52,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 49 transitions, 340 flow. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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) [2024-11-28 03:34:52,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:34:52,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-28 03:34:52,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:34:55,562 INFO L124 PetriNetUnfolderBase]: 70/209 cut-off events. [2024-11-28 03:34:55,563 INFO L125 PetriNetUnfolderBase]: For 239/239 co-relation queries the response was YES. [2024-11-28 03:34:55,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 620 conditions, 209 events. 70/209 cut-off events. For 239/239 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 670 event pairs, 12 based on Foata normal form. 3/212 useless extension candidates. Maximal degree in co-relation 457. Up to 44 conditions per place. [2024-11-28 03:34:55,565 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 65 selfloop transitions, 17 changer transitions 3/87 dead transitions. [2024-11-28 03:34:55,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 87 transitions, 626 flow [2024-11-28 03:34:55,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:34:55,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-28 03:34:55,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 144 transitions. [2024-11-28 03:34:55,567 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4222873900293255 [2024-11-28 03:34:55,567 INFO L175 Difference]: Start difference. First operand has 84 places, 49 transitions, 340 flow. Second operand 11 states and 144 transitions. [2024-11-28 03:34:55,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 87 transitions, 626 flow [2024-11-28 03:34:55,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 87 transitions, 583 flow, removed 1 selfloop flow, removed 13 redundant places. [2024-11-28 03:34:55,573 INFO L231 Difference]: Finished difference. Result has 87 places, 60 transitions, 410 flow [2024-11-28 03:34:55,574 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=410, PETRI_PLACES=87, PETRI_TRANSITIONS=60} [2024-11-28 03:34:55,575 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 54 predicate places. [2024-11-28 03:34:55,575 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 60 transitions, 410 flow [2024-11-28 03:34:55,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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) [2024-11-28 03:34:55,575 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:34:55,575 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:34:55,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:34:55,576 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:34:55,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:55,577 INFO L85 PathProgramCache]: Analyzing trace with hash -63403871, now seen corresponding path program 3 times [2024-11-28 03:34:55,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:55,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847750496] [2024-11-28 03:34:55,577 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:34:55,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:55,684 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 03:34:55,684 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:35:00,880 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 03:35:00,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:00,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847750496] [2024-11-28 03:35:00,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847750496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:35:00,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:35:00,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:35:00,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190582847] [2024-11-28 03:35:00,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:35:00,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:35:00,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:00,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:35:00,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:35:00,939 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-28 03:35:00,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 60 transitions, 410 flow. Second operand has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:35:00,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:35:00,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-28 03:35:00,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:35:03,315 INFO L124 PetriNetUnfolderBase]: 80/247 cut-off events. [2024-11-28 03:35:03,315 INFO L125 PetriNetUnfolderBase]: For 411/413 co-relation queries the response was YES. [2024-11-28 03:35:03,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 828 conditions, 247 events. 80/247 cut-off events. For 411/413 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 893 event pairs, 22 based on Foata normal form. 5/252 useless extension candidates. Maximal degree in co-relation 743. Up to 65 conditions per place. [2024-11-28 03:35:03,321 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 66 selfloop transitions, 27 changer transitions 7/102 dead transitions. [2024-11-28 03:35:03,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 102 transitions, 816 flow [2024-11-28 03:35:03,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:35:03,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-28 03:35:03,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 190 transitions. [2024-11-28 03:35:03,324 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3605313092979127 [2024-11-28 03:35:03,324 INFO L175 Difference]: Start difference. First operand has 87 places, 60 transitions, 410 flow. Second operand 17 states and 190 transitions. [2024-11-28 03:35:03,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 102 transitions, 816 flow [2024-11-28 03:35:03,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 102 transitions, 786 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-28 03:35:03,337 INFO L231 Difference]: Finished difference. Result has 104 places, 73 transitions, 563 flow [2024-11-28 03:35:03,338 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=563, PETRI_PLACES=104, PETRI_TRANSITIONS=73} [2024-11-28 03:35:03,338 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 71 predicate places. [2024-11-28 03:35:03,338 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 73 transitions, 563 flow [2024-11-28 03:35:03,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:35:03,340 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:35:03,341 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:03,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:35:03,341 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:35:03,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:03,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1802428730, now seen corresponding path program 1 times [2024-11-28 03:35:03,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:03,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874345141] [2024-11-28 03:35:03,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:03,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:03,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:07,466 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 03:35:07,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:07,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874345141] [2024-11-28 03:35:07,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874345141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:35:07,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:35:07,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:35:07,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560709142] [2024-11-28 03:35:07,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:35:07,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:35:07,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:07,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:35:07,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:35:07,490 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-28 03:35:07,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 73 transitions, 563 flow. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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) [2024-11-28 03:35:07,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:35:07,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-28 03:35:07,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:35:08,947 INFO L124 PetriNetUnfolderBase]: 83/261 cut-off events. [2024-11-28 03:35:08,948 INFO L125 PetriNetUnfolderBase]: For 527/531 co-relation queries the response was YES. [2024-11-28 03:35:08,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 942 conditions, 261 events. 83/261 cut-off events. For 527/531 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1007 event pairs, 30 based on Foata normal form. 7/268 useless extension candidates. Maximal degree in co-relation 847. Up to 125 conditions per place. [2024-11-28 03:35:08,950 INFO L140 encePairwiseOnDemand]: 20/31 looper letters, 66 selfloop transitions, 32 changer transitions 5/105 dead transitions. [2024-11-28 03:35:08,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 105 transitions, 918 flow [2024-11-28 03:35:08,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:35:08,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-28 03:35:08,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 184 transitions. [2024-11-28 03:35:08,952 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3709677419354839 [2024-11-28 03:35:08,953 INFO L175 Difference]: Start difference. First operand has 104 places, 73 transitions, 563 flow. Second operand 16 states and 184 transitions. [2024-11-28 03:35:08,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 105 transitions, 918 flow [2024-11-28 03:35:08,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 105 transitions, 844 flow, removed 12 selfloop flow, removed 6 redundant places. [2024-11-28 03:35:08,961 INFO L231 Difference]: Finished difference. Result has 116 places, 84 transitions, 669 flow [2024-11-28 03:35:08,962 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=505, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=669, PETRI_PLACES=116, PETRI_TRANSITIONS=84} [2024-11-28 03:35:08,962 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 83 predicate places. [2024-11-28 03:35:08,962 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 84 transitions, 669 flow [2024-11-28 03:35:08,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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) [2024-11-28 03:35:08,963 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:35:08,963 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:08,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:35:08,964 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:35:08,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:08,964 INFO L85 PathProgramCache]: Analyzing trace with hash 195808318, now seen corresponding path program 2 times [2024-11-28 03:35:08,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:08,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089818977] [2024-11-28 03:35:08,965 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:35:08,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:09,008 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:35:09,009 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:35:17,719 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 03:35:17,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:17,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089818977] [2024-11-28 03:35:17,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089818977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:35:17,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:35:17,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:35:17,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639625937] [2024-11-28 03:35:17,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:35:17,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:35:17,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:17,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:35:17,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:35:17,851 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-28 03:35:17,851 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 84 transitions, 669 flow. Second operand has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:35:17,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:35:17,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-28 03:35:17,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:35:21,059 INFO L124 PetriNetUnfolderBase]: 87/279 cut-off events. [2024-11-28 03:35:21,059 INFO L125 PetriNetUnfolderBase]: For 612/616 co-relation queries the response was YES. [2024-11-28 03:35:21,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1033 conditions, 279 events. 87/279 cut-off events. For 612/616 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1146 event pairs, 35 based on Foata normal form. 4/283 useless extension candidates. Maximal degree in co-relation 939. Up to 133 conditions per place. [2024-11-28 03:35:21,062 INFO L140 encePairwiseOnDemand]: 19/31 looper letters, 66 selfloop transitions, 37 changer transitions 7/112 dead transitions. [2024-11-28 03:35:21,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 112 transitions, 1028 flow [2024-11-28 03:35:21,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 03:35:21,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-28 03:35:21,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 203 transitions. [2024-11-28 03:35:21,065 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.34465195246179964 [2024-11-28 03:35:21,065 INFO L175 Difference]: Start difference. First operand has 116 places, 84 transitions, 669 flow. Second operand 19 states and 203 transitions. [2024-11-28 03:35:21,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 112 transitions, 1028 flow [2024-11-28 03:35:21,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 112 transitions, 994 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-28 03:35:21,076 INFO L231 Difference]: Finished difference. Result has 135 places, 90 transitions, 794 flow [2024-11-28 03:35:21,077 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=794, PETRI_PLACES=135, PETRI_TRANSITIONS=90} [2024-11-28 03:35:21,077 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 102 predicate places. [2024-11-28 03:35:21,078 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 90 transitions, 794 flow [2024-11-28 03:35:21,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:35:21,078 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:35:21,078 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:21,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:35:21,079 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:35:21,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:21,079 INFO L85 PathProgramCache]: Analyzing trace with hash 196903858, now seen corresponding path program 3 times [2024-11-28 03:35:21,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:21,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28484355] [2024-11-28 03:35:21,080 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:35:21,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:21,117 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 03:35:21,117 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:35:28,909 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 03:35:28,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:28,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28484355] [2024-11-28 03:35:28,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28484355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:35:28,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:35:28,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:35:28,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635898336] [2024-11-28 03:35:28,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:35:28,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:35:28,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:28,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:35:28,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:35:28,955 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-28 03:35:28,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 90 transitions, 794 flow. Second operand has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:35:28,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:35:28,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-28 03:35:28,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:35:31,142 INFO L124 PetriNetUnfolderBase]: 89/289 cut-off events. [2024-11-28 03:35:31,142 INFO L125 PetriNetUnfolderBase]: For 846/851 co-relation queries the response was YES. [2024-11-28 03:35:31,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1142 conditions, 289 events. 89/289 cut-off events. For 846/851 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1227 event pairs, 30 based on Foata normal form. 5/294 useless extension candidates. Maximal degree in co-relation 1069. Up to 129 conditions per place. [2024-11-28 03:35:31,147 INFO L140 encePairwiseOnDemand]: 18/31 looper letters, 71 selfloop transitions, 44 changer transitions 0/117 dead transitions. [2024-11-28 03:35:31,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 117 transitions, 1148 flow [2024-11-28 03:35:31,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:35:31,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-28 03:35:31,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 189 transitions. [2024-11-28 03:35:31,149 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3586337760910816 [2024-11-28 03:35:31,150 INFO L175 Difference]: Start difference. First operand has 135 places, 90 transitions, 794 flow. Second operand 17 states and 189 transitions. [2024-11-28 03:35:31,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 117 transitions, 1148 flow [2024-11-28 03:35:31,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 117 transitions, 1104 flow, removed 7 selfloop flow, removed 7 redundant places. [2024-11-28 03:35:31,159 INFO L231 Difference]: Finished difference. Result has 145 places, 98 transitions, 925 flow [2024-11-28 03:35:31,159 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=754, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=925, PETRI_PLACES=145, PETRI_TRANSITIONS=98} [2024-11-28 03:35:31,160 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 112 predicate places. [2024-11-28 03:35:31,160 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 98 transitions, 925 flow [2024-11-28 03:35:31,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:35:31,160 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:35:31,161 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:31,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:35:31,161 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:35:31,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:31,162 INFO L85 PathProgramCache]: Analyzing trace with hash -365176940, now seen corresponding path program 4 times [2024-11-28 03:35:31,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:31,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850975976] [2024-11-28 03:35:31,162 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:35:31,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:31,244 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:35:31,244 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:35:38,326 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 03:35:38,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:38,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850975976] [2024-11-28 03:35:38,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850975976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:35:38,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:35:38,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:35:38,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480079559] [2024-11-28 03:35:38,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:35:38,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:35:38,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:38,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:35:38,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:35:38,355 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-28 03:35:38,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 98 transitions, 925 flow. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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) [2024-11-28 03:35:38,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:35:38,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-28 03:35:38,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:35:40,279 INFO L124 PetriNetUnfolderBase]: 90/299 cut-off events. [2024-11-28 03:35:40,279 INFO L125 PetriNetUnfolderBase]: For 1029/1033 co-relation queries the response was YES. [2024-11-28 03:35:40,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1267 conditions, 299 events. 90/299 cut-off events. For 1029/1033 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1322 event pairs, 40 based on Foata normal form. 7/306 useless extension candidates. Maximal degree in co-relation 1153. Up to 142 conditions per place. [2024-11-28 03:35:40,283 INFO L140 encePairwiseOnDemand]: 20/31 looper letters, 79 selfloop transitions, 39 changer transitions 0/120 dead transitions. [2024-11-28 03:35:40,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 120 transitions, 1281 flow [2024-11-28 03:35:40,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:35:40,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-28 03:35:40,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 163 transitions. [2024-11-28 03:35:40,286 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.37557603686635943 [2024-11-28 03:35:40,286 INFO L175 Difference]: Start difference. First operand has 145 places, 98 transitions, 925 flow. Second operand 14 states and 163 transitions. [2024-11-28 03:35:40,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 120 transitions, 1281 flow [2024-11-28 03:35:40,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 120 transitions, 1203 flow, removed 8 selfloop flow, removed 10 redundant places. [2024-11-28 03:35:40,300 INFO L231 Difference]: Finished difference. Result has 153 places, 104 transitions, 1028 flow [2024-11-28 03:35:40,301 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1028, PETRI_PLACES=153, PETRI_TRANSITIONS=104} [2024-11-28 03:35:40,302 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 120 predicate places. [2024-11-28 03:35:40,303 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 104 transitions, 1028 flow [2024-11-28 03:35:40,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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) [2024-11-28 03:35:40,304 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:35:40,304 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:40,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:35:40,304 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:35:40,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:40,305 INFO L85 PathProgramCache]: Analyzing trace with hash 509772621, now seen corresponding path program 4 times [2024-11-28 03:35:40,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:40,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24085774] [2024-11-28 03:35:40,306 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:35:40,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:40,417 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:35:40,417 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:35:42,527 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 03:35:42,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:42,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24085774] [2024-11-28 03:35:42,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24085774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:35:42,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:35:42,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:35:42,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826671059] [2024-11-28 03:35:42,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:35:42,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:35:42,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:42,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:35:42,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:35:42,544 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-28 03:35:42,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 104 transitions, 1028 flow. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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) [2024-11-28 03:35:42,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:35:42,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-28 03:35:42,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:35:43,556 INFO L124 PetriNetUnfolderBase]: 92/309 cut-off events. [2024-11-28 03:35:43,556 INFO L125 PetriNetUnfolderBase]: For 1172/1176 co-relation queries the response was YES. [2024-11-28 03:35:43,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1342 conditions, 309 events. 92/309 cut-off events. For 1172/1176 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1403 event pairs, 28 based on Foata normal form. 7/316 useless extension candidates. Maximal degree in co-relation 1216. Up to 119 conditions per place. [2024-11-28 03:35:43,560 INFO L140 encePairwiseOnDemand]: 20/31 looper letters, 90 selfloop transitions, 42 changer transitions 1/135 dead transitions. [2024-11-28 03:35:43,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 135 transitions, 1436 flow [2024-11-28 03:35:43,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:35:43,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-28 03:35:43,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 189 transitions. [2024-11-28 03:35:43,562 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3586337760910816 [2024-11-28 03:35:43,563 INFO L175 Difference]: Start difference. First operand has 153 places, 104 transitions, 1028 flow. Second operand 17 states and 189 transitions. [2024-11-28 03:35:43,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 135 transitions, 1436 flow [2024-11-28 03:35:43,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 135 transitions, 1408 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-28 03:35:43,579 INFO L231 Difference]: Finished difference. Result has 171 places, 114 transitions, 1166 flow [2024-11-28 03:35:43,579 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=1001, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1166, PETRI_PLACES=171, PETRI_TRANSITIONS=114} [2024-11-28 03:35:43,580 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 138 predicate places. [2024-11-28 03:35:43,580 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 114 transitions, 1166 flow [2024-11-28 03:35:43,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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) [2024-11-28 03:35:43,580 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:35:43,580 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:43,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:35:43,580 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:35:43,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:43,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1489507340, now seen corresponding path program 1 times [2024-11-28 03:35:43,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:43,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081847499] [2024-11-28 03:35:43,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:43,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:47,668 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 03:35:47,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:47,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081847499] [2024-11-28 03:35:47,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081847499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:35:47,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:35:47,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:35:47,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858120840] [2024-11-28 03:35:47,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:35:47,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:35:47,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:47,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:35:47,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:35:47,758 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-28 03:35:47,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 114 transitions, 1166 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) [2024-11-28 03:35:47,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:35:47,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-28 03:35:47,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:35:50,438 INFO L124 PetriNetUnfolderBase]: 80/312 cut-off events. [2024-11-28 03:35:50,439 INFO L125 PetriNetUnfolderBase]: For 1574/1578 co-relation queries the response was YES. [2024-11-28 03:35:50,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1428 conditions, 312 events. 80/312 cut-off events. For 1574/1578 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1565 event pairs, 31 based on Foata normal form. 7/318 useless extension candidates. Maximal degree in co-relation 1322. Up to 144 conditions per place. [2024-11-28 03:35:50,443 INFO L140 encePairwiseOnDemand]: 23/31 looper letters, 69 selfloop transitions, 19 changer transitions 25/132 dead transitions. [2024-11-28 03:35:50,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 132 transitions, 1503 flow [2024-11-28 03:35:50,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:35:50,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 03:35:50,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 138 transitions. [2024-11-28 03:35:50,446 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44516129032258067 [2024-11-28 03:35:50,446 INFO L175 Difference]: Start difference. First operand has 171 places, 114 transitions, 1166 flow. Second operand 10 states and 138 transitions. [2024-11-28 03:35:50,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 132 transitions, 1503 flow [2024-11-28 03:35:50,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 132 transitions, 1413 flow, removed 6 selfloop flow, removed 10 redundant places. [2024-11-28 03:35:50,465 INFO L231 Difference]: Finished difference. Result has 172 places, 102 transitions, 984 flow [2024-11-28 03:35:50,466 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=1084, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=984, PETRI_PLACES=172, PETRI_TRANSITIONS=102} [2024-11-28 03:35:50,468 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 139 predicate places. [2024-11-28 03:35:50,468 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 102 transitions, 984 flow [2024-11-28 03:35:50,469 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) [2024-11-28 03:35:50,469 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:35:50,469 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:50,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:35:50,470 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:35:50,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:50,470 INFO L85 PathProgramCache]: Analyzing trace with hash 40716140, now seen corresponding path program 1 times [2024-11-28 03:35:50,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:50,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712476784] [2024-11-28 03:35:50,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:50,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:55,279 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 03:35:55,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:55,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712476784] [2024-11-28 03:35:55,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712476784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:35:55,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:35:55,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:35:55,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102302835] [2024-11-28 03:35:55,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:35:55,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:35:55,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:55,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:35:55,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:35:55,381 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-28 03:35:55,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 102 transitions, 984 flow. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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) [2024-11-28 03:35:55,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:35:55,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-28 03:35:55,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:35:57,144 INFO L124 PetriNetUnfolderBase]: 62/264 cut-off events. [2024-11-28 03:35:57,144 INFO L125 PetriNetUnfolderBase]: For 1222/1226 co-relation queries the response was YES. [2024-11-28 03:35:57,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1173 conditions, 264 events. 62/264 cut-off events. For 1222/1226 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1245 event pairs, 32 based on Foata normal form. 7/270 useless extension candidates. Maximal degree in co-relation 1122. Up to 146 conditions per place. [2024-11-28 03:35:57,147 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 61 selfloop transitions, 22 changer transitions 13/114 dead transitions. [2024-11-28 03:35:57,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 114 transitions, 1211 flow [2024-11-28 03:35:57,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:35:57,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-28 03:35:57,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 166 transitions. [2024-11-28 03:35:57,149 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4119106699751861 [2024-11-28 03:35:57,149 INFO L175 Difference]: Start difference. First operand has 172 places, 102 transitions, 984 flow. Second operand 13 states and 166 transitions. [2024-11-28 03:35:57,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 114 transitions, 1211 flow [2024-11-28 03:35:57,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 114 transitions, 1142 flow, removed 6 selfloop flow, removed 11 redundant places. [2024-11-28 03:35:57,163 INFO L231 Difference]: Finished difference. Result has 168 places, 96 transitions, 901 flow [2024-11-28 03:35:57,164 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=915, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=901, PETRI_PLACES=168, PETRI_TRANSITIONS=96} [2024-11-28 03:35:57,164 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 135 predicate places. [2024-11-28 03:35:57,164 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 96 transitions, 901 flow [2024-11-28 03:35:57,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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) [2024-11-28 03:35:57,165 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:35:57,165 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:57,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 03:35:57,165 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:35:57,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:57,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1810207800, now seen corresponding path program 1 times [2024-11-28 03:35:57,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:57,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183025935] [2024-11-28 03:35:57,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:57,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:57,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:01,199 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 03:36:01,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:01,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183025935] [2024-11-28 03:36:01,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183025935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:01,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:01,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:36:01,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658083827] [2024-11-28 03:36:01,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:01,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:36:01,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:01,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:36:01,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:36:01,266 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-28 03:36:01,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 96 transitions, 901 flow. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 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) [2024-11-28 03:36:01,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:36:01,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-28 03:36:01,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:36:02,183 INFO L124 PetriNetUnfolderBase]: 70/256 cut-off events. [2024-11-28 03:36:02,183 INFO L125 PetriNetUnfolderBase]: For 826/826 co-relation queries the response was YES. [2024-11-28 03:36:02,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1144 conditions, 256 events. 70/256 cut-off events. For 826/826 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1099 event pairs, 4 based on Foata normal form. 2/258 useless extension candidates. Maximal degree in co-relation 1095. Up to 69 conditions per place. [2024-11-28 03:36:02,187 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 87 selfloop transitions, 25 changer transitions 0/114 dead transitions. [2024-11-28 03:36:02,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 114 transitions, 1211 flow [2024-11-28 03:36:02,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:36:02,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-28 03:36:02,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 128 transitions. [2024-11-28 03:36:02,189 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.375366568914956 [2024-11-28 03:36:02,189 INFO L175 Difference]: Start difference. First operand has 168 places, 96 transitions, 901 flow. Second operand 11 states and 128 transitions. [2024-11-28 03:36:02,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 114 transitions, 1211 flow [2024-11-28 03:36:02,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 114 transitions, 1145 flow, removed 3 selfloop flow, removed 18 redundant places. [2024-11-28 03:36:02,201 INFO L231 Difference]: Finished difference. Result has 155 places, 95 transitions, 873 flow [2024-11-28 03:36:02,201 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=823, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=873, PETRI_PLACES=155, PETRI_TRANSITIONS=95} [2024-11-28 03:36:02,202 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 122 predicate places. [2024-11-28 03:36:02,202 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 95 transitions, 873 flow [2024-11-28 03:36:02,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 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) [2024-11-28 03:36:02,202 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:36:02,202 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:02,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 03:36:02,203 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:36:02,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:02,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1809052660, now seen corresponding path program 2 times [2024-11-28 03:36:02,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:02,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714727930] [2024-11-28 03:36:02,204 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:36:02,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:02,257 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:36:02,257 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:36:07,791 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 03:36:07,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:07,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714727930] [2024-11-28 03:36:07,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714727930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:07,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:07,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:36:07,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455936014] [2024-11-28 03:36:07,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:07,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:36:07,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:07,793 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:36:07,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:36:07,891 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-28 03:36:07,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 95 transitions, 873 flow. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 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) [2024-11-28 03:36:07,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:36:07,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-28 03:36:07,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:36:10,061 INFO L124 PetriNetUnfolderBase]: 54/233 cut-off events. [2024-11-28 03:36:10,061 INFO L125 PetriNetUnfolderBase]: For 763/763 co-relation queries the response was YES. [2024-11-28 03:36:10,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1029 conditions, 233 events. 54/233 cut-off events. For 763/763 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1027 event pairs, 17 based on Foata normal form. 3/233 useless extension candidates. Maximal degree in co-relation 987. Up to 118 conditions per place. [2024-11-28 03:36:10,064 INFO L140 encePairwiseOnDemand]: 20/31 looper letters, 59 selfloop transitions, 26 changer transitions 7/109 dead transitions. [2024-11-28 03:36:10,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 109 transitions, 1104 flow [2024-11-28 03:36:10,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:36:10,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-28 03:36:10,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 174 transitions. [2024-11-28 03:36:10,067 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4009216589861751 [2024-11-28 03:36:10,067 INFO L175 Difference]: Start difference. First operand has 155 places, 95 transitions, 873 flow. Second operand 14 states and 174 transitions. [2024-11-28 03:36:10,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 109 transitions, 1104 flow [2024-11-28 03:36:10,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 109 transitions, 1060 flow, removed 1 selfloop flow, removed 9 redundant places. [2024-11-28 03:36:10,078 INFO L231 Difference]: Finished difference. Result has 160 places, 91 transitions, 851 flow [2024-11-28 03:36:10,078 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=829, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=851, PETRI_PLACES=160, PETRI_TRANSITIONS=91} [2024-11-28 03:36:10,079 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 127 predicate places. [2024-11-28 03:36:10,079 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 91 transitions, 851 flow [2024-11-28 03:36:10,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 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) [2024-11-28 03:36:10,079 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:36:10,079 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:10,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 03:36:10,080 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:36:10,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:10,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1775090920, now seen corresponding path program 3 times [2024-11-28 03:36:10,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:10,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150685193] [2024-11-28 03:36:10,086 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:36:10,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:10,115 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 03:36:10,116 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:36:15,761 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 03:36:15,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:15,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150685193] [2024-11-28 03:36:15,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150685193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:15,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:15,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:36:15,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643547299] [2024-11-28 03:36:15,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:15,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:36:15,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:15,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:36:15,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:36:15,927 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-28 03:36:15,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 91 transitions, 851 flow. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 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) [2024-11-28 03:36:15,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:36:15,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-28 03:36:15,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:36:18,096 INFO L124 PetriNetUnfolderBase]: 48/215 cut-off events. [2024-11-28 03:36:18,096 INFO L125 PetriNetUnfolderBase]: For 804/804 co-relation queries the response was YES. [2024-11-28 03:36:18,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 972 conditions, 215 events. 48/215 cut-off events. For 804/804 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 868 event pairs, 17 based on Foata normal form. 6/221 useless extension candidates. Maximal degree in co-relation 930. Up to 102 conditions per place. [2024-11-28 03:36:18,098 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 54 selfloop transitions, 20 changer transitions 16/102 dead transitions. [2024-11-28 03:36:18,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 102 transitions, 1058 flow [2024-11-28 03:36:18,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:36:18,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-28 03:36:18,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 161 transitions. [2024-11-28 03:36:18,102 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39950372208436724 [2024-11-28 03:36:18,102 INFO L175 Difference]: Start difference. First operand has 160 places, 91 transitions, 851 flow. Second operand 13 states and 161 transitions. [2024-11-28 03:36:18,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 102 transitions, 1058 flow [2024-11-28 03:36:18,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 102 transitions, 978 flow, removed 2 selfloop flow, removed 15 redundant places. [2024-11-28 03:36:18,112 INFO L231 Difference]: Finished difference. Result has 154 places, 80 transitions, 697 flow [2024-11-28 03:36:18,112 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=781, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=697, PETRI_PLACES=154, PETRI_TRANSITIONS=80} [2024-11-28 03:36:18,113 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 121 predicate places. [2024-11-28 03:36:18,113 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 80 transitions, 697 flow [2024-11-28 03:36:18,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 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) [2024-11-28 03:36:18,113 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:36:18,113 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:18,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 03:36:18,113 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:36:18,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:18,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1564417106, now seen corresponding path program 4 times [2024-11-28 03:36:18,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:18,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42909764] [2024-11-28 03:36:18,115 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:36:18,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:18,180 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:36:18,180 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:36:23,231 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 03:36:23,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:23,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42909764] [2024-11-28 03:36:23,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42909764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:23,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:23,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:36:23,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223509170] [2024-11-28 03:36:23,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:23,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:36:23,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:23,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:36:23,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:36:23,257 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-28 03:36:23,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 80 transitions, 697 flow. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 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) [2024-11-28 03:36:23,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:36:23,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-28 03:36:23,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:36:24,372 INFO L124 PetriNetUnfolderBase]: 34/177 cut-off events. [2024-11-28 03:36:24,372 INFO L125 PetriNetUnfolderBase]: For 602/602 co-relation queries the response was YES. [2024-11-28 03:36:24,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 756 conditions, 177 events. 34/177 cut-off events. For 602/602 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 636 event pairs, 14 based on Foata normal form. 3/180 useless extension candidates. Maximal degree in co-relation 716. Up to 72 conditions per place. [2024-11-28 03:36:24,374 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 49 selfloop transitions, 14 changer transitions 14/88 dead transitions. [2024-11-28 03:36:24,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 88 transitions, 865 flow [2024-11-28 03:36:24,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:36:24,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-28 03:36:24,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 174 transitions. [2024-11-28 03:36:24,376 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46774193548387094 [2024-11-28 03:36:24,376 INFO L175 Difference]: Start difference. First operand has 154 places, 80 transitions, 697 flow. Second operand 12 states and 174 transitions. [2024-11-28 03:36:24,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 88 transitions, 865 flow [2024-11-28 03:36:24,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 88 transitions, 771 flow, removed 3 selfloop flow, removed 17 redundant places. [2024-11-28 03:36:24,382 INFO L231 Difference]: Finished difference. Result has 139 places, 71 transitions, 561 flow [2024-11-28 03:36:24,382 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=603, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=561, PETRI_PLACES=139, PETRI_TRANSITIONS=71} [2024-11-28 03:36:24,383 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 106 predicate places. [2024-11-28 03:36:24,383 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 71 transitions, 561 flow [2024-11-28 03:36:24,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 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) [2024-11-28 03:36:24,383 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:36:24,383 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:24,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 03:36:24,384 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:36:24,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:24,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1131597754, now seen corresponding path program 2 times [2024-11-28 03:36:24,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:24,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963011428] [2024-11-28 03:36:24,385 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:36:24,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:24,423 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:36:24,423 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:36:29,795 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 03:36:29,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:29,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963011428] [2024-11-28 03:36:29,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963011428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:29,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:29,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:36:29,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024860953] [2024-11-28 03:36:29,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:29,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:36:29,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:29,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:36:29,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:36:30,020 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-28 03:36:30,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 71 transitions, 561 flow. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 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) [2024-11-28 03:36:30,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:36:30,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-28 03:36:30,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:36:31,497 INFO L124 PetriNetUnfolderBase]: 40/183 cut-off events. [2024-11-28 03:36:31,497 INFO L125 PetriNetUnfolderBase]: For 418/418 co-relation queries the response was YES. [2024-11-28 03:36:31,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 702 conditions, 183 events. 40/183 cut-off events. For 418/418 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 648 event pairs, 17 based on Foata normal form. 3/186 useless extension candidates. Maximal degree in co-relation 666. Up to 81 conditions per place. [2024-11-28 03:36:31,498 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 51 selfloop transitions, 12 changer transitions 12/84 dead transitions. [2024-11-28 03:36:31,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 84 transitions, 755 flow [2024-11-28 03:36:31,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:36:31,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-28 03:36:31,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 151 transitions. [2024-11-28 03:36:31,500 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.40591397849462363 [2024-11-28 03:36:31,500 INFO L175 Difference]: Start difference. First operand has 139 places, 71 transitions, 561 flow. Second operand 12 states and 151 transitions. [2024-11-28 03:36:31,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 84 transitions, 755 flow [2024-11-28 03:36:31,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 84 transitions, 699 flow, removed 4 selfloop flow, removed 15 redundant places. [2024-11-28 03:36:31,505 INFO L231 Difference]: Finished difference. Result has 127 places, 67 transitions, 502 flow [2024-11-28 03:36:31,505 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=505, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=502, PETRI_PLACES=127, PETRI_TRANSITIONS=67} [2024-11-28 03:36:31,505 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 94 predicate places. [2024-11-28 03:36:31,505 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 67 transitions, 502 flow [2024-11-28 03:36:31,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 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) [2024-11-28 03:36:31,506 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:36:31,506 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:31,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 03:36:31,506 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:36:31,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:31,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1229460806, now seen corresponding path program 3 times [2024-11-28 03:36:31,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:31,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493069981] [2024-11-28 03:36:31,507 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:36:31,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:31,544 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 03:36:31,544 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:36:34,278 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 03:36:34,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:34,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493069981] [2024-11-28 03:36:34,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493069981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:34,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:34,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:36:34,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214942323] [2024-11-28 03:36:34,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:34,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:36:34,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:34,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:36:34,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:36:34,377 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-28 03:36:34,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 67 transitions, 502 flow. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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) [2024-11-28 03:36:34,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:36:34,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-28 03:36:34,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:36:35,481 INFO L124 PetriNetUnfolderBase]: 33/166 cut-off events. [2024-11-28 03:36:35,481 INFO L125 PetriNetUnfolderBase]: For 388/388 co-relation queries the response was YES. [2024-11-28 03:36:35,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 166 events. 33/166 cut-off events. For 388/388 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 554 event pairs, 17 based on Foata normal form. 3/169 useless extension candidates. Maximal degree in co-relation 584. Up to 71 conditions per place. [2024-11-28 03:36:35,483 INFO L140 encePairwiseOnDemand]: 20/31 looper letters, 50 selfloop transitions, 13 changer transitions 8/80 dead transitions. [2024-11-28 03:36:35,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 80 transitions, 688 flow [2024-11-28 03:36:35,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:36:35,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-28 03:36:35,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 150 transitions. [2024-11-28 03:36:35,485 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4032258064516129 [2024-11-28 03:36:35,485 INFO L175 Difference]: Start difference. First operand has 127 places, 67 transitions, 502 flow. Second operand 12 states and 150 transitions. [2024-11-28 03:36:35,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 80 transitions, 688 flow [2024-11-28 03:36:35,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 80 transitions, 651 flow, removed 4 selfloop flow, removed 11 redundant places. [2024-11-28 03:36:35,490 INFO L231 Difference]: Finished difference. Result has 125 places, 67 transitions, 498 flow [2024-11-28 03:36:35,490 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=498, PETRI_PLACES=125, PETRI_TRANSITIONS=67} [2024-11-28 03:36:35,491 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 92 predicate places. [2024-11-28 03:36:35,491 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 67 transitions, 498 flow [2024-11-28 03:36:35,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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) [2024-11-28 03:36:35,491 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:36:35,492 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:35,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 03:36:35,492 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:36:35,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:35,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1376917556, now seen corresponding path program 4 times [2024-11-28 03:36:35,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:35,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892847741] [2024-11-28 03:36:35,493 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:36:35,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:35,556 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:36:35,556 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:36:37,668 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 03:36:37,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:37,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892847741] [2024-11-28 03:36:37,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892847741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:37,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:37,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:36:37,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973382333] [2024-11-28 03:36:37,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:37,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:36:37,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:37,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:36:37,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:36:37,699 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-28 03:36:37,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 67 transitions, 498 flow. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 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) [2024-11-28 03:36:37,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:36:37,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-28 03:36:37,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:36:38,526 INFO L124 PetriNetUnfolderBase]: 26/140 cut-off events. [2024-11-28 03:36:38,526 INFO L125 PetriNetUnfolderBase]: For 331/331 co-relation queries the response was YES. [2024-11-28 03:36:38,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 545 conditions, 140 events. 26/140 cut-off events. For 331/331 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 388 event pairs, 11 based on Foata normal form. 3/143 useless extension candidates. Maximal degree in co-relation 512. Up to 51 conditions per place. [2024-11-28 03:36:38,528 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 41 selfloop transitions, 15 changer transitions 10/75 dead transitions. [2024-11-28 03:36:38,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 75 transitions, 644 flow [2024-11-28 03:36:38,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:36:38,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-28 03:36:38,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 198 transitions. [2024-11-28 03:36:38,530 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45622119815668205 [2024-11-28 03:36:38,530 INFO L175 Difference]: Start difference. First operand has 125 places, 67 transitions, 498 flow. Second operand 14 states and 198 transitions. [2024-11-28 03:36:38,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 75 transitions, 644 flow [2024-11-28 03:36:38,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 75 transitions, 614 flow, removed 3 selfloop flow, removed 10 redundant places. [2024-11-28 03:36:38,534 INFO L231 Difference]: Finished difference. Result has 128 places, 61 transitions, 464 flow [2024-11-28 03:36:38,534 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=464, PETRI_PLACES=128, PETRI_TRANSITIONS=61} [2024-11-28 03:36:38,534 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 95 predicate places. [2024-11-28 03:36:38,534 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 61 transitions, 464 flow [2024-11-28 03:36:38,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 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) [2024-11-28 03:36:38,535 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:36:38,535 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:38,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 03:36:38,535 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:36:38,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:38,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1635565004, now seen corresponding path program 1 times [2024-11-28 03:36:38,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:38,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834097045] [2024-11-28 03:36:38,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:38,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:40,825 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 03:36:40,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:40,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834097045] [2024-11-28 03:36:40,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834097045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:40,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:40,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:36:40,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028866064] [2024-11-28 03:36:40,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:40,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:36:40,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:40,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:36:40,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:36:40,853 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 31 [2024-11-28 03:36:40,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 61 transitions, 464 flow. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:40,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:36:40,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 31 [2024-11-28 03:36:40,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:36:42,137 INFO L124 PetriNetUnfolderBase]: 22/127 cut-off events. [2024-11-28 03:36:42,137 INFO L125 PetriNetUnfolderBase]: For 288/288 co-relation queries the response was YES. [2024-11-28 03:36:42,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 512 conditions, 127 events. 22/127 cut-off events. For 288/288 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 308 event pairs, 4 based on Foata normal form. 2/129 useless extension candidates. Maximal degree in co-relation 480. Up to 31 conditions per place. [2024-11-28 03:36:42,138 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 51 selfloop transitions, 21 changer transitions 0/77 dead transitions. [2024-11-28 03:36:42,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 77 transitions, 678 flow [2024-11-28 03:36:42,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:36:42,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-28 03:36:42,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 153 transitions. [2024-11-28 03:36:42,140 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.37965260545905705 [2024-11-28 03:36:42,140 INFO L175 Difference]: Start difference. First operand has 128 places, 61 transitions, 464 flow. Second operand 13 states and 153 transitions. [2024-11-28 03:36:42,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 77 transitions, 678 flow [2024-11-28 03:36:42,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 77 transitions, 613 flow, removed 7 selfloop flow, removed 18 redundant places. [2024-11-28 03:36:42,145 INFO L231 Difference]: Finished difference. Result has 121 places, 68 transitions, 502 flow [2024-11-28 03:36:42,145 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=502, PETRI_PLACES=121, PETRI_TRANSITIONS=68} [2024-11-28 03:36:42,146 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 88 predicate places. [2024-11-28 03:36:42,146 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 68 transitions, 502 flow [2024-11-28 03:36:42,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:42,146 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:36:42,147 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:42,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 03:36:42,147 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:36:42,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:42,148 INFO L85 PathProgramCache]: Analyzing trace with hash 281867310, now seen corresponding path program 1 times [2024-11-28 03:36:42,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:42,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087307804] [2024-11-28 03:36:42,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:42,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:42,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:45,608 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 03:36:45,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:45,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087307804] [2024-11-28 03:36:45,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087307804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:45,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:45,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:36:45,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913423038] [2024-11-28 03:36:45,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:45,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:36:45,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:45,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:36:45,610 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:36:45,672 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-28 03:36:45,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 68 transitions, 502 flow. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 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) [2024-11-28 03:36:45,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:36:45,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-28 03:36:45,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:36:46,424 INFO L124 PetriNetUnfolderBase]: 20/125 cut-off events. [2024-11-28 03:36:46,425 INFO L125 PetriNetUnfolderBase]: For 281/281 co-relation queries the response was YES. [2024-11-28 03:36:46,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 507 conditions, 125 events. 20/125 cut-off events. For 281/281 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 304 event pairs, 5 based on Foata normal form. 2/127 useless extension candidates. Maximal degree in co-relation 477. Up to 42 conditions per place. [2024-11-28 03:36:46,425 INFO L140 encePairwiseOnDemand]: 23/31 looper letters, 43 selfloop transitions, 8 changer transitions 15/72 dead transitions. [2024-11-28 03:36:46,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 72 transitions, 636 flow [2024-11-28 03:36:46,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:36:46,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 03:36:46,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 123 transitions. [2024-11-28 03:36:46,427 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3967741935483871 [2024-11-28 03:36:46,427 INFO L175 Difference]: Start difference. First operand has 121 places, 68 transitions, 502 flow. Second operand 10 states and 123 transitions. [2024-11-28 03:36:46,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 72 transitions, 636 flow [2024-11-28 03:36:46,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 72 transitions, 605 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-11-28 03:36:46,431 INFO L231 Difference]: Finished difference. Result has 122 places, 57 transitions, 430 flow [2024-11-28 03:36:46,432 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=113, 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=430, PETRI_PLACES=122, PETRI_TRANSITIONS=57} [2024-11-28 03:36:46,432 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 89 predicate places. [2024-11-28 03:36:46,432 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 57 transitions, 430 flow [2024-11-28 03:36:46,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 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) [2024-11-28 03:36:46,433 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:36:46,433 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:46,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 03:36:46,433 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:36:46,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:46,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1050519305, now seen corresponding path program 1 times [2024-11-28 03:36:46,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:46,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090133626] [2024-11-28 03:36:46,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:46,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:56,070 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 03:36:56,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:56,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090133626] [2024-11-28 03:36:56,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090133626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:56,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:56,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:36:56,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260389540] [2024-11-28 03:36:56,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:56,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:36:56,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:56,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:36:56,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:36:56,176 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-28 03:36:56,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 57 transitions, 430 flow. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 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) [2024-11-28 03:36:56,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:36:56,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-28 03:36:56,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:36:57,362 INFO L124 PetriNetUnfolderBase]: 10/88 cut-off events. [2024-11-28 03:36:57,362 INFO L125 PetriNetUnfolderBase]: For 256/258 co-relation queries the response was YES. [2024-11-28 03:36:57,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 88 events. 10/88 cut-off events. For 256/258 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 135 event pairs, 2 based on Foata normal form. 4/92 useless extension candidates. Maximal degree in co-relation 352. Up to 26 conditions per place. [2024-11-28 03:36:57,363 INFO L140 encePairwiseOnDemand]: 23/31 looper letters, 40 selfloop transitions, 4 changer transitions 15/63 dead transitions. [2024-11-28 03:36:57,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 63 transitions, 574 flow [2024-11-28 03:36:57,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:36:57,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 03:36:57,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 110 transitions. [2024-11-28 03:36:57,364 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3942652329749104 [2024-11-28 03:36:57,364 INFO L175 Difference]: Start difference. First operand has 122 places, 57 transitions, 430 flow. Second operand 9 states and 110 transitions. [2024-11-28 03:36:57,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 63 transitions, 574 flow [2024-11-28 03:36:57,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 63 transitions, 536 flow, removed 3 selfloop flow, removed 11 redundant places. [2024-11-28 03:36:57,367 INFO L231 Difference]: Finished difference. Result has 103 places, 48 transitions, 351 flow [2024-11-28 03:36:57,368 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=351, PETRI_PLACES=103, PETRI_TRANSITIONS=48} [2024-11-28 03:36:57,368 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 70 predicate places. [2024-11-28 03:36:57,368 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 48 transitions, 351 flow [2024-11-28 03:36:57,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 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) [2024-11-28 03:36:57,369 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:36:57,369 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:57,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 03:36:57,369 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:36:57,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:57,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1710393131, now seen corresponding path program 2 times [2024-11-28 03:36:57,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:57,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665905489] [2024-11-28 03:36:57,370 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:36:57,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:57,414 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:36:57,414 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:36:59,279 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 03:36:59,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:59,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665905489] [2024-11-28 03:36:59,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665905489] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:36:59,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411183235] [2024-11-28 03:36:59,279 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:36:59,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:59,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:36:59,282 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:36:59,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:36:59,537 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:36:59,537 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:36:59,540 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 76 conjuncts are in the unsatisfiable core [2024-11-28 03:36:59,543 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:37:02,653 INFO L349 Elim1Store]: treesize reduction 257, result has 30.7 percent of original size [2024-11-28 03:37:02,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 45 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 65 case distinctions, treesize of input 107 treesize of output 155 [2024-11-28 03:37:07,879 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:37:07,880 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 485 treesize of output 303 [2024-11-28 03:37:12,803 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:37:12,803 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:37:26,179 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 03:37:26,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411183235] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:37:26,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:37:26,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 25, 6] total 35 [2024-11-28 03:37:26,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356486737] [2024-11-28 03:37:26,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:37:26,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-28 03:37:26,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:37:26,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-28 03:37:26,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=1090, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 03:37:27,079 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-28 03:37:27,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 48 transitions, 351 flow. Second operand has 37 states, 37 states have (on average 8.513513513513514) internal successors, (315), 37 states have internal predecessors, (315), 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) [2024-11-28 03:37:27,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:37:27,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-28 03:37:27,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:37:31,418 INFO L124 PetriNetUnfolderBase]: 5/64 cut-off events. [2024-11-28 03:37:31,418 INFO L125 PetriNetUnfolderBase]: For 186/188 co-relation queries the response was YES. [2024-11-28 03:37:31,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 64 events. 5/64 cut-off events. For 186/188 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 5/69 useless extension candidates. Maximal degree in co-relation 258. Up to 11 conditions per place. [2024-11-28 03:37:31,419 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 10 selfloop transitions, 25 changer transitions 10/48 dead transitions. [2024-11-28 03:37:31,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 48 transitions, 438 flow [2024-11-28 03:37:31,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-28 03:37:31,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2024-11-28 03:37:31,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 246 transitions. [2024-11-28 03:37:31,420 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.27363737486095663 [2024-11-28 03:37:31,420 INFO L175 Difference]: Start difference. First operand has 103 places, 48 transitions, 351 flow. Second operand 29 states and 246 transitions. [2024-11-28 03:37:31,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 48 transitions, 438 flow [2024-11-28 03:37:31,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 48 transitions, 397 flow, removed 9 selfloop flow, removed 12 redundant places. [2024-11-28 03:37:31,423 INFO L231 Difference]: Finished difference. Result has 106 places, 38 transitions, 309 flow [2024-11-28 03:37:31,423 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=309, PETRI_PLACES=106, PETRI_TRANSITIONS=38} [2024-11-28 03:37:31,424 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 73 predicate places. [2024-11-28 03:37:31,424 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 38 transitions, 309 flow [2024-11-28 03:37:31,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 8.513513513513514) internal successors, (315), 37 states have internal predecessors, (315), 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) [2024-11-28 03:37:31,424 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:37:31,424 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:37:31,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 03:37:31,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:37:31,625 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:37:31,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:37:31,625 INFO L85 PathProgramCache]: Analyzing trace with hash -995054799, now seen corresponding path program 1 times [2024-11-28 03:37:31,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:37:31,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729275375] [2024-11-28 03:37:31,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:37:31,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:37:31,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:37:33,572 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 03:37:33,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:37:33,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729275375] [2024-11-28 03:37:33,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729275375] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:37:33,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268700283] [2024-11-28 03:37:33,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:37:33,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:37:33,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:37:33,574 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:37:33,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:37:33,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:37:33,867 INFO L256 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-11-28 03:37:33,870 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:37:37,314 INFO L349 Elim1Store]: treesize reduction 180, result has 38.1 percent of original size [2024-11-28 03:37:37,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 10 case distinctions, treesize of input 90 treesize of output 141 [2024-11-28 03:37:42,610 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:37:42,610 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 505 treesize of output 323 [2024-11-28 03:37:49,731 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 1 proven. 146 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:37:49,732 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:37:50,623 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-28 03:37:50,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268700283] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:37:50,624 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:37:50,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 23, 4] total 32 [2024-11-28 03:37:50,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977725878] [2024-11-28 03:37:50,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:37:50,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-28 03:37:50,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:37:50,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-28 03:37:50,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=924, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 03:37:51,112 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 31 [2024-11-28 03:37:51,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 38 transitions, 309 flow. Second operand has 34 states, 34 states have (on average 6.9411764705882355) internal successors, (236), 34 states have internal predecessors, (236), 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) [2024-11-28 03:37:51,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:37:51,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 31 [2024-11-28 03:37:51,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:37:54,170 INFO L124 PetriNetUnfolderBase]: 1/46 cut-off events. [2024-11-28 03:37:54,170 INFO L125 PetriNetUnfolderBase]: For 179/179 co-relation queries the response was YES. [2024-11-28 03:37:54,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 46 events. 1/46 cut-off events. For 179/179 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 1/47 useless extension candidates. Maximal degree in co-relation 194. Up to 11 conditions per place. [2024-11-28 03:37:54,171 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 0 selfloop transitions, 0 changer transitions 37/37 dead transitions. [2024-11-28 03:37:54,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 37 transitions, 369 flow [2024-11-28 03:37:54,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-28 03:37:54,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-11-28 03:37:54,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 165 transitions. [2024-11-28 03:37:54,172 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.20471464019851116 [2024-11-28 03:37:54,172 INFO L175 Difference]: Start difference. First operand has 106 places, 38 transitions, 309 flow. Second operand 26 states and 165 transitions. [2024-11-28 03:37:54,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 37 transitions, 369 flow [2024-11-28 03:37:54,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 37 transitions, 280 flow, removed 10 selfloop flow, removed 36 redundant places. [2024-11-28 03:37:54,174 INFO L231 Difference]: Finished difference. Result has 79 places, 0 transitions, 0 flow [2024-11-28 03:37:54,175 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=0, PETRI_PLACES=79, PETRI_TRANSITIONS=0} [2024-11-28 03:37:54,175 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 46 predicate places. [2024-11-28 03:37:54,175 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 0 transitions, 0 flow [2024-11-28 03:37:54,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 6.9411764705882355) internal successors, (236), 34 states have internal predecessors, (236), 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) [2024-11-28 03:37:54,178 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2024-11-28 03:37:54,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-28 03:37:54,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-28 03:37:54,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-28 03:37:54,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2024-11-28 03:37:54,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-28 03:37:54,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-28 03:37:54,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-28 03:37:54,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-11-28 03:37:54,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-28 03:37:54,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-28 03:37:54,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-28 03:37:54,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-28 03:37:54,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 03:37:54,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-28 03:37:54,381 INFO L422 BasicCegarLoop]: Path program histogram: [4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:37:54,387 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 03:37:54,387 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:37:54,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:37:54 BasicIcfg [2024-11-28 03:37:54,394 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:37:54,395 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:37:54,395 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:37:54,395 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:37:54,396 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:34:32" (3/4) ... [2024-11-28 03:37:54,399 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:37:54,403 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-28 03:37:54,413 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 87 nodes and edges [2024-11-28 03:37:54,413 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-28 03:37:54,413 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 03:37:54,506 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:37:54,506 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:37:54,507 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:37:54,507 INFO L158 Benchmark]: Toolchain (without parser) took 204786.67ms. Allocated memory was 142.6MB in the beginning and 1.1GB in the end (delta: 947.9MB). Free memory was 115.8MB in the beginning and 427.3MB in the end (delta: -311.5MB). Peak memory consumption was 637.3MB. Max. memory is 16.1GB. [2024-11-28 03:37:54,508 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 73.1MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:37:54,508 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1004.96ms. Allocated memory is still 142.6MB. Free memory was 115.6MB in the beginning and 85.8MB in the end (delta: 29.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-28 03:37:54,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.03ms. Allocated memory is still 142.6MB. Free memory was 85.8MB in the beginning and 83.5MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:37:54,509 INFO L158 Benchmark]: Boogie Preprocessor took 53.26ms. Allocated memory is still 142.6MB. Free memory was 83.5MB in the beginning and 81.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:37:54,509 INFO L158 Benchmark]: RCFGBuilder took 1479.51ms. Allocated memory is still 142.6MB. Free memory was 81.3MB in the beginning and 54.6MB in the end (delta: 26.7MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. [2024-11-28 03:37:54,509 INFO L158 Benchmark]: TraceAbstraction took 202063.59ms. Allocated memory was 142.6MB in the beginning and 1.1GB in the end (delta: 947.9MB). Free memory was 53.8MB in the beginning and 432.4MB in the end (delta: -378.6MB). Peak memory consumption was 564.1MB. Max. memory is 16.1GB. [2024-11-28 03:37:54,510 INFO L158 Benchmark]: Witness Printer took 111.68ms. Allocated memory is still 1.1GB. Free memory was 432.4MB in the beginning and 427.3MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:37:54,512 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 73.1MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1004.96ms. Allocated memory is still 142.6MB. Free memory was 115.6MB in the beginning and 85.8MB in the end (delta: 29.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.03ms. Allocated memory is still 142.6MB. Free memory was 85.8MB in the beginning and 83.5MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 53.26ms. Allocated memory is still 142.6MB. Free memory was 83.5MB in the beginning and 81.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1479.51ms. Allocated memory is still 142.6MB. Free memory was 81.3MB in the beginning and 54.6MB in the end (delta: 26.7MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. * TraceAbstraction took 202063.59ms. Allocated memory was 142.6MB in the beginning and 1.1GB in the end (delta: 947.9MB). Free memory was 53.8MB in the beginning and 432.4MB in the end (delta: -378.6MB). Peak memory consumption was 564.1MB. Max. memory is 16.1GB. * Witness Printer took 111.68ms. Allocated memory is still 1.1GB. Free memory was 432.4MB in the beginning and 427.3MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 944]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 944]: 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 - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: 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, 46 locations, 13 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: 201.9s, OverallIterations: 31, TraceHistogramMax: 10, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 46.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1708 SdHoareTripleChecker+Valid, 13.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1571 mSDsluCounter, 3532 SdHoareTripleChecker+Invalid, 11.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3431 mSDsCounter, 154 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7293 IncrementalHoareTripleChecker+Invalid, 7447 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 154 mSolverCounterUnsat, 101 mSDtfsCounter, 7293 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 739 GetRequests, 215 SyntacticMatches, 32 SemanticMatches, 492 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3230 ImplicationChecksByTransitivity, 65.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1166occurred in iteration=17, InterpolantAutomatonStates: 385, 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, 1.8s SatisfiabilityAnalysisTime, 151.3s InterpolantComputationTime, 1261 NumberOfCodeBlocks, 991 NumberOfCodeBlocksAsserted, 43 NumberOfCheckSat, 1374 ConstructedInterpolants, 79 QuantifiedInterpolants, 108613 SizeOfPredicates, 53 NumberOfNonLiveVariables, 1468 ConjunctsInSsa, 181 ConjunctsInUnsatCore, 42 InterpolantComputations, 26 PerfectInterpolantSequences, 3452/3999 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 03:37:54,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06cdf9f-b05a-4ef7-bdf8-4a9a816f1cfd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE