./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.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_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/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_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/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_de3a18c5-c33c-4e04-900f-69b43b99c30d/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 b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:07:12,960 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:07:13,051 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 02:07:13,056 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:07:13,057 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:07:13,081 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:07:13,082 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:07:13,082 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:07:13,083 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:07:13,083 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:07:13,083 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:07:13,083 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:07:13,084 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:07:13,084 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:07:13,084 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:07:13,084 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:07:13,084 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:07:13,084 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:07:13,085 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:07:13,085 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:07:13,085 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:07:13,085 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:07:13,085 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:07:13,085 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:07:13,086 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 02:07:13,086 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:07:13,086 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:07:13,086 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:07:13,086 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:07:13,086 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:07:13,087 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:07:13,087 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:13,087 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:13,087 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:13,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:13,087 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:07:13,087 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:13,087 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:13,087 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:13,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:13,088 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:07:13,088 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:07:13,088 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:07:13,088 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:07:13,088 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:07:13,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:07:13,089 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:07:13,089 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:07:13,089 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:07:13,089 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:07:13,089 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_de3a18c5-c33c-4e04-900f-69b43b99c30d/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 -> b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 [2024-11-28 02:07:13,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:07:13,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:07:13,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:07:13,423 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:07:13,423 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:07:13,425 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2024-11-28 02:07:16,515 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/data/96dbf7275/6acac122e9dc40368d103d238beece12/FLAG56bd0f534 [2024-11-28 02:07:16,960 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:07:16,961 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2024-11-28 02:07:16,987 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/data/96dbf7275/6acac122e9dc40368d103d238beece12/FLAG56bd0f534 [2024-11-28 02:07:17,001 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/data/96dbf7275/6acac122e9dc40368d103d238beece12 [2024-11-28 02:07:17,004 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:07:17,005 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:07:17,007 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:17,007 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:07:17,012 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:07:17,013 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:17" (1/1) ... [2024-11-28 02:07:17,015 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bd674b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:17, skipping insertion in model container [2024-11-28 02:07:17,016 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:17" (1/1) ... [2024-11-28 02:07:17,073 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:07:17,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:17,917 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:07:18,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:18,135 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:07:18,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:18 WrapperNode [2024-11-28 02:07:18,136 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:18,137 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:18,137 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:07:18,137 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:07:18,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:18" (1/1) ... [2024-11-28 02:07:18,171 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:18" (1/1) ... [2024-11-28 02:07:18,199 INFO L138 Inliner]: procedures = 370, calls = 86, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 185 [2024-11-28 02:07:18,200 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:18,200 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:07:18,201 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:07:18,201 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:07:18,214 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:18" (1/1) ... [2024-11-28 02:07:18,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:18" (1/1) ... [2024-11-28 02:07:18,219 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:18" (1/1) ... [2024-11-28 02:07:18,238 INFO L175 MemorySlicer]: Split 78 memory accesses to 3 slices as follows [50, 14, 14]. 64 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [50, 10, 0]. The 11 writes are split as follows [0, 1, 10]. [2024-11-28 02:07:18,239 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:18" (1/1) ... [2024-11-28 02:07:18,239 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:18" (1/1) ... [2024-11-28 02:07:18,250 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:18" (1/1) ... [2024-11-28 02:07:18,251 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:18" (1/1) ... [2024-11-28 02:07:18,254 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:18" (1/1) ... [2024-11-28 02:07:18,260 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:18" (1/1) ... [2024-11-28 02:07:18,262 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:18" (1/1) ... [2024-11-28 02:07:18,265 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:07:18,266 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:07:18,266 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:07:18,266 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:07:18,267 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:18" (1/1) ... [2024-11-28 02:07:18,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:18,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:18,302 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:07:18,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:07:18,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 02:07:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 02:07:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 02:07:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 02:07:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 02:07:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 02:07:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 02:07:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:07:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 02:07:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 02:07:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:07:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 02:07:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 02:07:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 02:07:18,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 02:07:18,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:07:18,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 02:07:18,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 02:07:18,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 02:07:18,334 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-28 02:07:18,334 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-28 02:07:18,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:07:18,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:07:18,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 02:07:18,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:07:18,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:07:18,337 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 02:07:18,542 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:07:18,544 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:07:19,018 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 02:07:19,018 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:07:19,563 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:07:19,564 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-28 02:07:19,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:19 BoogieIcfgContainer [2024-11-28 02:07:19,565 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:07:19,570 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:07:19,571 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:07:19,576 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:07:19,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:07:17" (1/3) ... [2024-11-28 02:07:19,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@490c4d31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:19, skipping insertion in model container [2024-11-28 02:07:19,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:18" (2/3) ... [2024-11-28 02:07:19,580 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@490c4d31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:19, skipping insertion in model container [2024-11-28 02:07:19,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:19" (3/3) ... [2024-11-28 02:07:19,582 INFO L128 eAbstractionObserver]: Analyzing ICFG 09-regions_17-arrayloop_nr.i [2024-11-28 02:07:19,599 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:07:19,601 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_17-arrayloop_nr.i that has 2 procedures, 33 locations, 1 initial locations, 3 loop locations, and 8 error locations. [2024-11-28 02:07:19,601 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 02:07:19,672 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 02:07:19,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 35 transitions, 74 flow [2024-11-28 02:07:19,768 INFO L124 PetriNetUnfolderBase]: 3/34 cut-off events. [2024-11-28 02:07:19,773 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:07:19,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 34 events. 3/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2024-11-28 02:07:19,777 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 35 transitions, 74 flow [2024-11-28 02:07:19,781 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 34 transitions, 71 flow [2024-11-28 02:07:19,791 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:07:19,806 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;@3a025b0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:07:19,806 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-28 02:07:19,814 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:07:19,815 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-28 02:07:19,815 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:07:19,815 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:19,816 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-28 02:07:19,816 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 02:07:19,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:19,822 INFO L85 PathProgramCache]: Analyzing trace with hash 488677, now seen corresponding path program 1 times [2024-11-28 02:07:19,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:19,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808457538] [2024-11-28 02:07:19,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:19,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:20,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:20,345 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 02:07:20,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:20,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808457538] [2024-11-28 02:07:20,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808457538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:20,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:20,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:07:20,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713837768] [2024-11-28 02:07:20,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:20,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:07:20,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:20,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:07:20,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:07:20,413 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-28 02:07:20,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 34 transitions, 71 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:07:20,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:20,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-28 02:07:20,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:20,753 INFO L124 PetriNetUnfolderBase]: 86/246 cut-off events. [2024-11-28 02:07:20,754 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:07:20,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 246 events. 86/246 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 995 event pairs, 36 based on Foata normal form. 8/233 useless extension candidates. Maximal degree in co-relation 403. Up to 106 conditions per place. [2024-11-28 02:07:20,760 INFO L140 encePairwiseOnDemand]: 26/35 looper letters, 30 selfloop transitions, 5 changer transitions 0/48 dead transitions. [2024-11-28 02:07:20,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 48 transitions, 169 flow [2024-11-28 02:07:20,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:07:20,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 02:07:20,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 95 transitions. [2024-11-28 02:07:20,777 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6785714285714286 [2024-11-28 02:07:20,779 INFO L175 Difference]: Start difference. First operand has 35 places, 34 transitions, 71 flow. Second operand 4 states and 95 transitions. [2024-11-28 02:07:20,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 48 transitions, 169 flow [2024-11-28 02:07:20,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 48 transitions, 168 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:07:20,790 INFO L231 Difference]: Finished difference. Result has 39 places, 37 transitions, 106 flow [2024-11-28 02:07:20,793 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=106, PETRI_PLACES=39, PETRI_TRANSITIONS=37} [2024-11-28 02:07:20,796 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places. [2024-11-28 02:07:20,797 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 37 transitions, 106 flow [2024-11-28 02:07:20,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:07:20,797 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:20,797 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-28 02:07:20,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:07:20,798 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 02:07:20,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:20,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1673755608, now seen corresponding path program 1 times [2024-11-28 02:07:20,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:20,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874435833] [2024-11-28 02:07:20,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:20,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:21,137 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 02:07:21,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:21,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874435833] [2024-11-28 02:07:21,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874435833] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:07:21,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758672829] [2024-11-28 02:07:21,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:21,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:21,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:21,142 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:21,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:07:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:21,338 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:07:21,343 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:21,397 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 02:07:21,398 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:07:21,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758672829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:21,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:07:21,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-28 02:07:21,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121767296] [2024-11-28 02:07:21,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:21,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:07:21,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:21,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:07:21,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:07:21,419 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-28 02:07:21,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 37 transitions, 106 flow. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 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 02:07:21,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:21,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-28 02:07:21,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:21,696 INFO L124 PetriNetUnfolderBase]: 86/242 cut-off events. [2024-11-28 02:07:21,696 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2024-11-28 02:07:21,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 242 events. 86/242 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 967 event pairs, 0 based on Foata normal form. 1/225 useless extension candidates. Maximal degree in co-relation 446. Up to 92 conditions per place. [2024-11-28 02:07:21,700 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 34 selfloop transitions, 7 changer transitions 0/54 dead transitions. [2024-11-28 02:07:21,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 54 transitions, 220 flow [2024-11-28 02:07:21,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:07:21,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:07:21,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 126 transitions. [2024-11-28 02:07:21,705 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-11-28 02:07:21,705 INFO L175 Difference]: Start difference. First operand has 39 places, 37 transitions, 106 flow. Second operand 6 states and 126 transitions. [2024-11-28 02:07:21,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 54 transitions, 220 flow [2024-11-28 02:07:21,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 54 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:07:21,707 INFO L231 Difference]: Finished difference. Result has 42 places, 36 transitions, 112 flow [2024-11-28 02:07:21,708 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=112, PETRI_PLACES=42, PETRI_TRANSITIONS=36} [2024-11-28 02:07:21,708 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 7 predicate places. [2024-11-28 02:07:21,709 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 36 transitions, 112 flow [2024-11-28 02:07:21,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 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 02:07:21,709 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:21,709 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-28 02:07:21,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:07:21,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:21,910 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 02:07:21,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:21,911 INFO L85 PathProgramCache]: Analyzing trace with hash 346816781, now seen corresponding path program 1 times [2024-11-28 02:07:21,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:21,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852751195] [2024-11-28 02:07:21,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:21,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:21,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:22,073 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 02:07:22,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:22,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852751195] [2024-11-28 02:07:22,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852751195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:22,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:22,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:07:22,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041305631] [2024-11-28 02:07:22,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:22,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:22,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:22,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:22,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:22,082 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-28 02:07:22,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 36 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 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 02:07:22,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:22,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-28 02:07:22,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:22,208 INFO L124 PetriNetUnfolderBase]: 86/254 cut-off events. [2024-11-28 02:07:22,208 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-11-28 02:07:22,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 254 events. 86/254 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1061 event pairs, 66 based on Foata normal form. 1/228 useless extension candidates. Maximal degree in co-relation 467. Up to 174 conditions per place. [2024-11-28 02:07:22,211 INFO L140 encePairwiseOnDemand]: 32/35 looper letters, 18 selfloop transitions, 4 changer transitions 0/35 dead transitions. [2024-11-28 02:07:22,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 35 transitions, 152 flow [2024-11-28 02:07:22,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:22,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:07:22,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2024-11-28 02:07:22,212 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5904761904761905 [2024-11-28 02:07:22,212 INFO L175 Difference]: Start difference. First operand has 42 places, 36 transitions, 112 flow. Second operand 3 states and 62 transitions. [2024-11-28 02:07:22,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 35 transitions, 152 flow [2024-11-28 02:07:22,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 35 transitions, 140 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-28 02:07:22,215 INFO L231 Difference]: Finished difference. Result has 39 places, 35 transitions, 104 flow [2024-11-28 02:07:22,215 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=39, PETRI_TRANSITIONS=35} [2024-11-28 02:07:22,216 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places. [2024-11-28 02:07:22,216 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 35 transitions, 104 flow [2024-11-28 02:07:22,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 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 02:07:22,216 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:22,217 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:22,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:07:22,217 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 02:07:22,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:22,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1319875462, now seen corresponding path program 1 times [2024-11-28 02:07:22,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:22,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185483396] [2024-11-28 02:07:22,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:22,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:22,367 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 02:07:22,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:22,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185483396] [2024-11-28 02:07:22,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185483396] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:07:22,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131711075] [2024-11-28 02:07:22,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:22,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:22,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:22,371 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:22,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:07:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:22,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:07:22,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:22,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 02:07:22,555 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:07:22,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131711075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:22,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:07:22,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2024-11-28 02:07:22,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304437901] [2024-11-28 02:07:22,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:22,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:22,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:22,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:22,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:07:22,568 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-28 02:07:22,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 35 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 02:07:22,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:22,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-28 02:07:22,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:22,802 INFO L124 PetriNetUnfolderBase]: 194/520 cut-off events. [2024-11-28 02:07:22,802 INFO L125 PetriNetUnfolderBase]: For 83/83 co-relation queries the response was YES. [2024-11-28 02:07:22,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 961 conditions, 520 events. 194/520 cut-off events. For 83/83 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2553 event pairs, 66 based on Foata normal form. 12/471 useless extension candidates. Maximal degree in co-relation 934. Up to 192 conditions per place. [2024-11-28 02:07:22,810 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 35 selfloop transitions, 4 changer transitions 0/50 dead transitions. [2024-11-28 02:07:22,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 50 transitions, 221 flow [2024-11-28 02:07:22,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:22,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:07:22,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 78 transitions. [2024-11-28 02:07:22,812 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7428571428571429 [2024-11-28 02:07:22,812 INFO L175 Difference]: Start difference. First operand has 39 places, 35 transitions, 104 flow. Second operand 3 states and 78 transitions. [2024-11-28 02:07:22,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 50 transitions, 221 flow [2024-11-28 02:07:22,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 50 transitions, 213 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:07:22,815 INFO L231 Difference]: Finished difference. Result has 41 places, 38 transitions, 126 flow [2024-11-28 02:07:22,816 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=41, PETRI_TRANSITIONS=38} [2024-11-28 02:07:22,818 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2024-11-28 02:07:22,818 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 38 transitions, 126 flow [2024-11-28 02:07:22,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 02:07:22,818 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:22,818 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:22,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 02:07:23,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:23,019 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 02:07:23,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:23,020 INFO L85 PathProgramCache]: Analyzing trace with hash -2033533132, now seen corresponding path program 1 times [2024-11-28 02:07:23,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:23,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701422642] [2024-11-28 02:07:23,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:23,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:23,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:23,149 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 02:07:23,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:23,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701422642] [2024-11-28 02:07:23,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701422642] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:07:23,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678710797] [2024-11-28 02:07:23,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:23,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:23,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:23,152 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:23,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:07:23,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:23,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:07:23,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:23,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 02:07:23,327 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:07:23,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678710797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:23,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:07:23,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2024-11-28 02:07:23,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347396364] [2024-11-28 02:07:23,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:23,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:23,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:23,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:23,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:07:23,340 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-28 02:07:23,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 38 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 02:07:23,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:23,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-28 02:07:23,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:23,537 INFO L124 PetriNetUnfolderBase]: 170/498 cut-off events. [2024-11-28 02:07:23,537 INFO L125 PetriNetUnfolderBase]: For 248/248 co-relation queries the response was YES. [2024-11-28 02:07:23,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1032 conditions, 498 events. 170/498 cut-off events. For 248/248 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2559 event pairs, 77 based on Foata normal form. 24/483 useless extension candidates. Maximal degree in co-relation 1001. Up to 200 conditions per place. [2024-11-28 02:07:23,542 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 34 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2024-11-28 02:07:23,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 48 transitions, 225 flow [2024-11-28 02:07:23,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:23,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:07:23,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2024-11-28 02:07:23,544 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2024-11-28 02:07:23,544 INFO L175 Difference]: Start difference. First operand has 41 places, 38 transitions, 126 flow. Second operand 3 states and 77 transitions. [2024-11-28 02:07:23,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 48 transitions, 225 flow [2024-11-28 02:07:23,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 48 transitions, 217 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:07:23,546 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 116 flow [2024-11-28 02:07:23,546 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=41, PETRI_TRANSITIONS=36} [2024-11-28 02:07:23,549 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2024-11-28 02:07:23,550 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 116 flow [2024-11-28 02:07:23,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 02:07:23,551 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:23,551 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:23,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 02:07:23,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:23,752 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 02:07:23,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:23,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1106242565, now seen corresponding path program 1 times [2024-11-28 02:07:23,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:23,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196851583] [2024-11-28 02:07:23,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:23,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:23,915 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 02:07:23,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:23,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196851583] [2024-11-28 02:07:23,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196851583] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:07:23,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722963775] [2024-11-28 02:07:23,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:23,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:23,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:23,918 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:23,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:07:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:24,097 INFO L256 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:07:24,098 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:24,121 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 02:07:24,121 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:07:24,158 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 02:07:24,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722963775] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:07:24,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:07:24,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-28 02:07:24,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781113343] [2024-11-28 02:07:24,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:07:24,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:07:24,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:24,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:07:24,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:07:24,180 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-28 02:07:24,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 116 flow. Second operand has 10 states, 10 states have (on average 14.8) internal successors, (148), 10 states have internal predecessors, (148), 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 02:07:24,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:24,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-28 02:07:24,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:24,509 INFO L124 PetriNetUnfolderBase]: 170/449 cut-off events. [2024-11-28 02:07:24,509 INFO L125 PetriNetUnfolderBase]: For 182/182 co-relation queries the response was YES. [2024-11-28 02:07:24,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 953 conditions, 449 events. 170/449 cut-off events. For 182/182 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2137 event pairs, 22 based on Foata normal form. 2/417 useless extension candidates. Maximal degree in co-relation 910. Up to 145 conditions per place. [2024-11-28 02:07:24,512 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 37 selfloop transitions, 11 changer transitions 0/60 dead transitions. [2024-11-28 02:07:24,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 60 transitions, 294 flow [2024-11-28 02:07:24,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:07:24,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 02:07:24,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 138 transitions. [2024-11-28 02:07:24,514 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.563265306122449 [2024-11-28 02:07:24,514 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 116 flow. Second operand 7 states and 138 transitions. [2024-11-28 02:07:24,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 60 transitions, 294 flow [2024-11-28 02:07:24,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 60 transitions, 294 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:07:24,516 INFO L231 Difference]: Finished difference. Result has 50 places, 40 transitions, 178 flow [2024-11-28 02:07:24,516 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=178, PETRI_PLACES=50, PETRI_TRANSITIONS=40} [2024-11-28 02:07:24,517 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 15 predicate places. [2024-11-28 02:07:24,517 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 40 transitions, 178 flow [2024-11-28 02:07:24,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.8) internal successors, (148), 10 states have internal predecessors, (148), 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 02:07:24,517 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:24,518 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:24,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 02:07:24,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-28 02:07:24,722 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 02:07:24,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:24,727 INFO L85 PathProgramCache]: Analyzing trace with hash 32914213, now seen corresponding path program 2 times [2024-11-28 02:07:24,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:24,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7026650] [2024-11-28 02:07:24,728 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:07:24,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:24,775 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:07:24,775 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:07:24,842 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 02:07:24,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:24,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7026650] [2024-11-28 02:07:24,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7026650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:24,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:24,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:24,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149052634] [2024-11-28 02:07:24,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:24,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:07:24,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:24,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:07:24,847 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:07:24,863 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-28 02:07:24,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 40 transitions, 178 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 02:07:24,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:24,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-28 02:07:24,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:25,110 INFO L124 PetriNetUnfolderBase]: 170/486 cut-off events. [2024-11-28 02:07:25,110 INFO L125 PetriNetUnfolderBase]: For 350/350 co-relation queries the response was YES. [2024-11-28 02:07:25,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1097 conditions, 486 events. 170/486 cut-off events. For 350/350 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2367 event pairs, 88 based on Foata normal form. 24/488 useless extension candidates. Maximal degree in co-relation 1041. Up to 220 conditions per place. [2024-11-28 02:07:25,114 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 35 selfloop transitions, 7 changer transitions 1/55 dead transitions. [2024-11-28 02:07:25,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 55 transitions, 318 flow [2024-11-28 02:07:25,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:07:25,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 02:07:25,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 93 transitions. [2024-11-28 02:07:25,116 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6642857142857143 [2024-11-28 02:07:25,116 INFO L175 Difference]: Start difference. First operand has 50 places, 40 transitions, 178 flow. Second operand 4 states and 93 transitions. [2024-11-28 02:07:25,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 55 transitions, 318 flow [2024-11-28 02:07:25,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 55 transitions, 306 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-28 02:07:25,120 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 178 flow [2024-11-28 02:07:25,121 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=178, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2024-11-28 02:07:25,121 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 15 predicate places. [2024-11-28 02:07:25,121 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 178 flow [2024-11-28 02:07:25,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 02:07:25,122 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:25,122 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:25,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:07:25,122 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 02:07:25,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:25,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1020341081, now seen corresponding path program 1 times [2024-11-28 02:07:25,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:25,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048172840] [2024-11-28 02:07:25,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:25,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:25,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:25,312 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 02:07:25,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:25,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048172840] [2024-11-28 02:07:25,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048172840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:25,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:25,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:25,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793571452] [2024-11-28 02:07:25,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:25,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:07:25,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:25,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:07:25,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:07:25,325 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-28 02:07:25,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 178 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 02:07:25,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:25,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-28 02:07:25,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:25,594 INFO L124 PetriNetUnfolderBase]: 158/432 cut-off events. [2024-11-28 02:07:25,595 INFO L125 PetriNetUnfolderBase]: For 369/369 co-relation queries the response was YES. [2024-11-28 02:07:25,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1036 conditions, 432 events. 158/432 cut-off events. For 369/369 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1941 event pairs, 85 based on Foata normal form. 12/425 useless extension candidates. Maximal degree in co-relation 980. Up to 201 conditions per place. [2024-11-28 02:07:25,598 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 42 selfloop transitions, 5 changer transitions 0/59 dead transitions. [2024-11-28 02:07:25,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 59 transitions, 338 flow [2024-11-28 02:07:25,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:07:25,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 02:07:25,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 98 transitions. [2024-11-28 02:07:25,599 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-11-28 02:07:25,599 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 178 flow. Second operand 4 states and 98 transitions. [2024-11-28 02:07:25,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 59 transitions, 338 flow [2024-11-28 02:07:25,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 59 transitions, 326 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:07:25,603 INFO L231 Difference]: Finished difference. Result has 53 places, 40 transitions, 190 flow [2024-11-28 02:07:25,603 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=53, PETRI_TRANSITIONS=40} [2024-11-28 02:07:25,603 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 18 predicate places. [2024-11-28 02:07:25,604 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 40 transitions, 190 flow [2024-11-28 02:07:25,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 02:07:25,604 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:25,608 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:25,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:07:25,608 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 02:07:25,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:25,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1147717079, now seen corresponding path program 1 times [2024-11-28 02:07:25,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:25,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013964698] [2024-11-28 02:07:25,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:25,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:25,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:25,797 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 02:07:25,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:25,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013964698] [2024-11-28 02:07:25,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013964698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:25,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:25,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:25,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539381442] [2024-11-28 02:07:25,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:25,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:07:25,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:25,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:07:25,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:07:25,817 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-28 02:07:25,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 40 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:07:25,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:25,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-28 02:07:25,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:26,089 INFO L124 PetriNetUnfolderBase]: 194/493 cut-off events. [2024-11-28 02:07:26,089 INFO L125 PetriNetUnfolderBase]: For 595/595 co-relation queries the response was YES. [2024-11-28 02:07:26,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1280 conditions, 493 events. 194/493 cut-off events. For 595/595 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2288 event pairs, 110 based on Foata normal form. 24/512 useless extension candidates. Maximal degree in co-relation 1220. Up to 275 conditions per place. [2024-11-28 02:07:26,093 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 50 selfloop transitions, 3 changer transitions 0/62 dead transitions. [2024-11-28 02:07:26,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 62 transitions, 396 flow [2024-11-28 02:07:26,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:07:26,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 02:07:26,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 92 transitions. [2024-11-28 02:07:26,094 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6571428571428571 [2024-11-28 02:07:26,094 INFO L175 Difference]: Start difference. First operand has 53 places, 40 transitions, 190 flow. Second operand 4 states and 92 transitions. [2024-11-28 02:07:26,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 62 transitions, 396 flow [2024-11-28 02:07:26,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 62 transitions, 388 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:07:26,099 INFO L231 Difference]: Finished difference. Result has 57 places, 41 transitions, 204 flow [2024-11-28 02:07:26,099 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=204, PETRI_PLACES=57, PETRI_TRANSITIONS=41} [2024-11-28 02:07:26,100 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 22 predicate places. [2024-11-28 02:07:26,100 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 41 transitions, 204 flow [2024-11-28 02:07:26,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:07:26,100 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:26,100 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:26,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:07:26,100 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 02:07:26,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:26,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1189946907, now seen corresponding path program 1 times [2024-11-28 02:07:26,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:26,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433146913] [2024-11-28 02:07:26,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:26,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:26,321 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 02:07:26,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:26,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433146913] [2024-11-28 02:07:26,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433146913] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:07:26,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500158139] [2024-11-28 02:07:26,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:26,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:26,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:26,326 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:26,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:07:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:26,557 INFO L256 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 02:07:26,559 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:26,671 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 02:07:26,671 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:07:26,823 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 02:07:26,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500158139] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:07:26,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:07:26,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8, 8] total 19 [2024-11-28 02:07:26,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634125063] [2024-11-28 02:07:26,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:07:26,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 02:07:26,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:26,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 02:07:26,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-11-28 02:07:26,961 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 35 [2024-11-28 02:07:26,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 41 transitions, 204 flow. Second operand has 19 states, 19 states have (on average 10.947368421052632) internal successors, (208), 19 states have internal predecessors, (208), 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 02:07:26,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:26,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 35 [2024-11-28 02:07:26,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:28,151 INFO L124 PetriNetUnfolderBase]: 352/819 cut-off events. [2024-11-28 02:07:28,151 INFO L125 PetriNetUnfolderBase]: For 1082/1082 co-relation queries the response was YES. [2024-11-28 02:07:28,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2292 conditions, 819 events. 352/819 cut-off events. For 1082/1082 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3813 event pairs, 31 based on Foata normal form. 18/833 useless extension candidates. Maximal degree in co-relation 2183. Up to 120 conditions per place. [2024-11-28 02:07:28,158 INFO L140 encePairwiseOnDemand]: 22/35 looper letters, 100 selfloop transitions, 49 changer transitions 0/156 dead transitions. [2024-11-28 02:07:28,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 156 transitions, 988 flow [2024-11-28 02:07:28,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-28 02:07:28,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-28 02:07:28,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 372 transitions. [2024-11-28 02:07:28,161 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44285714285714284 [2024-11-28 02:07:28,162 INFO L175 Difference]: Start difference. First operand has 57 places, 41 transitions, 204 flow. Second operand 24 states and 372 transitions. [2024-11-28 02:07:28,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 156 transitions, 988 flow [2024-11-28 02:07:28,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 156 transitions, 955 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 02:07:28,173 INFO L231 Difference]: Finished difference. Result has 86 places, 76 transitions, 606 flow [2024-11-28 02:07:28,173 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=606, PETRI_PLACES=86, PETRI_TRANSITIONS=76} [2024-11-28 02:07:28,174 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 51 predicate places. [2024-11-28 02:07:28,174 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 76 transitions, 606 flow [2024-11-28 02:07:28,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.947368421052632) internal successors, (208), 19 states have internal predecessors, (208), 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 02:07:28,174 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:28,175 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:28,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 02:07:28,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 02:07:28,375 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 02:07:28,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:28,376 INFO L85 PathProgramCache]: Analyzing trace with hash 224163199, now seen corresponding path program 1 times [2024-11-28 02:07:28,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:28,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790796838] [2024-11-28 02:07:28,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:28,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:28,562 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-28 02:07:28,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:28,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790796838] [2024-11-28 02:07:28,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790796838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:28,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:28,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:07:28,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208043606] [2024-11-28 02:07:28,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:28,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:28,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:28,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:28,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:28,573 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-28 02:07:28,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 76 transitions, 606 flow. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 02:07:28,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:28,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-28 02:07:28,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:28,789 INFO L124 PetriNetUnfolderBase]: 271/724 cut-off events. [2024-11-28 02:07:28,789 INFO L125 PetriNetUnfolderBase]: For 2053/2056 co-relation queries the response was YES. [2024-11-28 02:07:28,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2181 conditions, 724 events. 271/724 cut-off events. For 2053/2056 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3392 event pairs, 52 based on Foata normal form. 28/748 useless extension candidates. Maximal degree in co-relation 2037. Up to 410 conditions per place. [2024-11-28 02:07:28,796 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 61 selfloop transitions, 11 changer transitions 0/85 dead transitions. [2024-11-28 02:07:28,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 85 transitions, 813 flow [2024-11-28 02:07:28,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:28,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:07:28,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2024-11-28 02:07:28,797 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6571428571428571 [2024-11-28 02:07:28,797 INFO L175 Difference]: Start difference. First operand has 86 places, 76 transitions, 606 flow. Second operand 3 states and 69 transitions. [2024-11-28 02:07:28,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 85 transitions, 813 flow [2024-11-28 02:07:28,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 85 transitions, 771 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-11-28 02:07:28,806 INFO L231 Difference]: Finished difference. Result has 82 places, 73 transitions, 575 flow [2024-11-28 02:07:28,807 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=575, PETRI_PLACES=82, PETRI_TRANSITIONS=73} [2024-11-28 02:07:28,807 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 47 predicate places. [2024-11-28 02:07:28,807 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 73 transitions, 575 flow [2024-11-28 02:07:28,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 02:07:28,808 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:28,808 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:28,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:07:28,808 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 02:07:28,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:28,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1515996416, now seen corresponding path program 1 times [2024-11-28 02:07:28,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:28,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265328153] [2024-11-28 02:07:28,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:28,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:28,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:29,037 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-28 02:07:29,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:29,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265328153] [2024-11-28 02:07:29,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265328153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:29,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:29,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:29,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521928263] [2024-11-28 02:07:29,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:29,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:07:29,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:29,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:07:29,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:07:29,047 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-28 02:07:29,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 73 transitions, 575 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:07:29,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:29,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-28 02:07:29,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:29,318 INFO L124 PetriNetUnfolderBase]: 254/631 cut-off events. [2024-11-28 02:07:29,319 INFO L125 PetriNetUnfolderBase]: For 1955/1955 co-relation queries the response was YES. [2024-11-28 02:07:29,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2042 conditions, 631 events. 254/631 cut-off events. For 1955/1955 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2821 event pairs, 65 based on Foata normal form. 17/637 useless extension candidates. Maximal degree in co-relation 1906. Up to 324 conditions per place. [2024-11-28 02:07:29,323 INFO L140 encePairwiseOnDemand]: 27/35 looper letters, 43 selfloop transitions, 33 changer transitions 8/94 dead transitions. [2024-11-28 02:07:29,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 94 transitions, 895 flow [2024-11-28 02:07:29,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:07:29,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 02:07:29,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 89 transitions. [2024-11-28 02:07:29,325 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6357142857142857 [2024-11-28 02:07:29,325 INFO L175 Difference]: Start difference. First operand has 82 places, 73 transitions, 575 flow. Second operand 4 states and 89 transitions. [2024-11-28 02:07:29,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 94 transitions, 895 flow [2024-11-28 02:07:29,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 94 transitions, 871 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:07:29,335 INFO L231 Difference]: Finished difference. Result has 82 places, 68 transitions, 591 flow [2024-11-28 02:07:29,336 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=555, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=591, PETRI_PLACES=82, PETRI_TRANSITIONS=68} [2024-11-28 02:07:29,339 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 47 predicate places. [2024-11-28 02:07:29,339 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 68 transitions, 591 flow [2024-11-28 02:07:29,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:07:29,339 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:29,340 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:29,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 02:07:29,340 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 02:07:29,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:29,343 INFO L85 PathProgramCache]: Analyzing trace with hash -627780386, now seen corresponding path program 1 times [2024-11-28 02:07:29,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:29,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868357327] [2024-11-28 02:07:29,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:29,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:29,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:30,046 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 02:07:30,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:30,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868357327] [2024-11-28 02:07:30,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868357327] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:07:30,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319459172] [2024-11-28 02:07:30,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:30,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:30,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:30,051 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:30,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 02:07:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:30,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 02:07:30,380 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:30,452 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 02:07:30,453 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:07:30,716 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 02:07:30,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319459172] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:07:30,716 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:07:30,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-28 02:07:30,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189802591] [2024-11-28 02:07:30,717 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:07:30,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 02:07:30,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:30,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 02:07:30,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-28 02:07:30,753 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-28 02:07:30,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 68 transitions, 591 flow. Second operand has 23 states, 23 states have (on average 14.391304347826088) internal successors, (331), 23 states have internal predecessors, (331), 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 02:07:30,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:30,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-28 02:07:30,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:31,356 INFO L124 PetriNetUnfolderBase]: 226/601 cut-off events. [2024-11-28 02:07:31,356 INFO L125 PetriNetUnfolderBase]: For 1931/1931 co-relation queries the response was YES. [2024-11-28 02:07:31,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1997 conditions, 601 events. 226/601 cut-off events. For 1931/1931 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2640 event pairs, 71 based on Foata normal form. 3/599 useless extension candidates. Maximal degree in co-relation 1792. Up to 193 conditions per place. [2024-11-28 02:07:31,362 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 40 selfloop transitions, 37 changer transitions 0/87 dead transitions. [2024-11-28 02:07:31,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 87 transitions, 885 flow [2024-11-28 02:07:31,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 02:07:31,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-28 02:07:31,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 332 transitions. [2024-11-28 02:07:31,365 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45170068027210886 [2024-11-28 02:07:31,365 INFO L175 Difference]: Start difference. First operand has 82 places, 68 transitions, 591 flow. Second operand 21 states and 332 transitions. [2024-11-28 02:07:31,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 87 transitions, 885 flow [2024-11-28 02:07:31,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 87 transitions, 780 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-11-28 02:07:31,374 INFO L231 Difference]: Finished difference. Result has 99 places, 74 transitions, 673 flow [2024-11-28 02:07:31,375 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=673, PETRI_PLACES=99, PETRI_TRANSITIONS=74} [2024-11-28 02:07:31,376 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 64 predicate places. [2024-11-28 02:07:31,376 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 74 transitions, 673 flow [2024-11-28 02:07:31,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 14.391304347826088) internal successors, (331), 23 states have internal predecessors, (331), 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 02:07:31,376 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:31,376 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:31,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 02:07:31,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 02:07:31,577 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 02:07:31,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:31,578 INFO L85 PathProgramCache]: Analyzing trace with hash -697597525, now seen corresponding path program 2 times [2024-11-28 02:07:31,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:31,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705676382] [2024-11-28 02:07:31,578 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:07:31,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:31,681 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:07:31,681 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:07:31,945 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 02:07:31,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:31,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705676382] [2024-11-28 02:07:31,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705676382] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:07:31,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222440585] [2024-11-28 02:07:31,946 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:07:31,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:31,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:31,948 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:31,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 02:07:32,371 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:07:32,371 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:07:32,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 911 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:07:32,378 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:32,427 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 02:07:32,427 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:07:32,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222440585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:32,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:07:32,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-28 02:07:32,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633631477] [2024-11-28 02:07:32,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:32,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:07:32,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:32,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:07:32,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:07:32,445 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-11-28 02:07:32,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 74 transitions, 673 flow. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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 02:07:32,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:32,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-11-28 02:07:32,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:32,716 INFO L124 PetriNetUnfolderBase]: 258/640 cut-off events. [2024-11-28 02:07:32,717 INFO L125 PetriNetUnfolderBase]: For 1830/1835 co-relation queries the response was YES. [2024-11-28 02:07:32,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2048 conditions, 640 events. 258/640 cut-off events. For 1830/1835 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2660 event pairs, 36 based on Foata normal form. 40/676 useless extension candidates. Maximal degree in co-relation 1840. Up to 303 conditions per place. [2024-11-28 02:07:32,722 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 68 selfloop transitions, 14 changer transitions 0/93 dead transitions. [2024-11-28 02:07:32,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 93 transitions, 969 flow [2024-11-28 02:07:32,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:07:32,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 02:07:32,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 80 transitions. [2024-11-28 02:07:32,723 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2024-11-28 02:07:32,723 INFO L175 Difference]: Start difference. First operand has 99 places, 74 transitions, 673 flow. Second operand 4 states and 80 transitions. [2024-11-28 02:07:32,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 93 transitions, 969 flow [2024-11-28 02:07:32,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 93 transitions, 875 flow, removed 4 selfloop flow, removed 14 redundant places. [2024-11-28 02:07:32,733 INFO L231 Difference]: Finished difference. Result has 86 places, 72 transitions, 607 flow [2024-11-28 02:07:32,733 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=579, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=607, PETRI_PLACES=86, PETRI_TRANSITIONS=72} [2024-11-28 02:07:32,735 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 51 predicate places. [2024-11-28 02:07:32,735 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 72 transitions, 607 flow [2024-11-28 02:07:32,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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 02:07:32,735 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:32,735 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:32,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 02:07:32,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:32,936 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 02:07:32,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:32,937 INFO L85 PathProgramCache]: Analyzing trace with hash -150686283, now seen corresponding path program 1 times [2024-11-28 02:07:32,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:32,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126742362] [2024-11-28 02:07:32,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:32,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:33,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:33,166 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-28 02:07:33,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:33,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126742362] [2024-11-28 02:07:33,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126742362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:33,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:33,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:33,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885215166] [2024-11-28 02:07:33,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:33,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:07:33,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:33,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:07:33,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:07:33,179 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-11-28 02:07:33,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 72 transitions, 607 flow. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 02:07:33,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:33,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-11-28 02:07:33,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:33,431 INFO L124 PetriNetUnfolderBase]: 234/613 cut-off events. [2024-11-28 02:07:33,431 INFO L125 PetriNetUnfolderBase]: For 1691/1692 co-relation queries the response was YES. [2024-11-28 02:07:33,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1916 conditions, 613 events. 234/613 cut-off events. For 1691/1692 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2559 event pairs, 39 based on Foata normal form. 25/633 useless extension candidates. Maximal degree in co-relation 1733. Up to 313 conditions per place. [2024-11-28 02:07:33,435 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 0 selfloop transitions, 0 changer transitions 95/95 dead transitions. [2024-11-28 02:07:33,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 95 transitions, 939 flow [2024-11-28 02:07:33,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:07:33,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 02:07:33,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 79 transitions. [2024-11-28 02:07:33,436 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5642857142857143 [2024-11-28 02:07:33,436 INFO L175 Difference]: Start difference. First operand has 86 places, 72 transitions, 607 flow. Second operand 4 states and 79 transitions. [2024-11-28 02:07:33,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 95 transitions, 939 flow [2024-11-28 02:07:33,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 95 transitions, 905 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 02:07:33,443 INFO L231 Difference]: Finished difference. Result has 84 places, 0 transitions, 0 flow [2024-11-28 02:07:33,444 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=84, PETRI_TRANSITIONS=0} [2024-11-28 02:07:33,444 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 49 predicate places. [2024-11-28 02:07:33,445 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 0 transitions, 0 flow [2024-11-28 02:07:33,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 02:07:33,450 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2024-11-28 02:07:33,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-28 02:07:33,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-28 02:07:33,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-28 02:07:33,452 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2024-11-28 02:07:33,452 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-28 02:07:33,452 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-28 02:07:33,452 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-28 02:07:33,452 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-11-28 02:07:33,452 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-28 02:07:33,452 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-28 02:07:33,453 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-28 02:07:33,453 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-28 02:07:33,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 02:07:33,453 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:33,460 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 02:07:33,461 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:07:33,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:07:33 BasicIcfg [2024-11-28 02:07:33,470 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:07:33,470 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:07:33,470 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:07:33,471 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:07:33,472 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:19" (3/4) ... [2024-11-28 02:07:33,473 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 02:07:33,476 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-28 02:07:33,484 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 97 nodes and edges [2024-11-28 02:07:33,484 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-28 02:07:33,484 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 02:07:33,485 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 02:07:33,571 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:07:33,571 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:07:33,571 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:07:33,573 INFO L158 Benchmark]: Toolchain (without parser) took 16567.12ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 90.3MB in the beginning and 138.0MB in the end (delta: -47.7MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. [2024-11-28 02:07:33,573 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:07:33,574 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1129.55ms. Allocated memory is still 117.4MB. Free memory was 90.1MB in the beginning and 50.0MB in the end (delta: 40.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-28 02:07:33,574 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.25ms. Allocated memory is still 117.4MB. Free memory was 50.0MB in the beginning and 47.0MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:07:33,575 INFO L158 Benchmark]: Boogie Preprocessor took 64.63ms. Allocated memory is still 117.4MB. Free memory was 47.0MB in the beginning and 43.9MB in the end (delta: 3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:07:33,576 INFO L158 Benchmark]: RCFGBuilder took 1299.26ms. Allocated memory is still 117.4MB. Free memory was 43.9MB in the beginning and 48.5MB in the end (delta: -4.6MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2024-11-28 02:07:33,577 INFO L158 Benchmark]: TraceAbstraction took 13899.56ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 48.5MB in the beginning and 143.0MB in the end (delta: -94.5MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2024-11-28 02:07:33,577 INFO L158 Benchmark]: Witness Printer took 101.23ms. Allocated memory is still 226.5MB. Free memory was 143.0MB in the beginning and 138.0MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:07:33,578 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1129.55ms. Allocated memory is still 117.4MB. Free memory was 90.1MB in the beginning and 50.0MB in the end (delta: 40.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.25ms. Allocated memory is still 117.4MB. Free memory was 50.0MB in the beginning and 47.0MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 64.63ms. Allocated memory is still 117.4MB. Free memory was 47.0MB in the beginning and 43.9MB in the end (delta: 3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1299.26ms. Allocated memory is still 117.4MB. Free memory was 43.9MB in the beginning and 48.5MB in the end (delta: -4.6MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. * TraceAbstraction took 13899.56ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 48.5MB in the beginning and 143.0MB in the end (delta: -94.5MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * Witness Printer took 101.23ms. Allocated memory is still 226.5MB. Free memory was 143.0MB in the beginning and 138.0MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1253]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1253]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1258]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1258]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1244]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1244]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1242]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1242]: 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, 49 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: 13.7s, OverallIterations: 15, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 695 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 619 mSDsluCounter, 446 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 410 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1976 IncrementalHoareTripleChecker+Invalid, 2042 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 36 mSDtfsCounter, 1976 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 330 GetRequests, 205 SyntacticMatches, 11 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 521 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=673occurred in iteration=13, InterpolantAutomatonStates: 98, 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: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 522 NumberOfCodeBlocks, 513 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 578 ConstructedInterpolants, 0 QuantifiedInterpolants, 1010 SizeOfPredicates, 14 NumberOfNonLiveVariables, 3191 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 25 InterpolantComputations, 12 PerfectInterpolantSequences, 691/944 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 02:07:33,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a18c5-c33c-4e04-900f-69b43b99c30d/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