./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_72-funloop_hard_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_72-funloop_hard_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya --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 566e2cbe460cf96671c9cef5a53ce51910e23c462e96f394be80b957976729c5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:25:25,227 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:25:25,293 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 04:25:25,297 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:25:25,298 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:25:25,323 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:25:25,323 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:25:25,324 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:25:25,325 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:25:25,325 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:25:25,326 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:25:25,326 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:25:25,327 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:25:25,328 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:25:25,328 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:25:25,329 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:25:25,329 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:25:25,330 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:25:25,330 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:25:25,331 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:25:25,331 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:25:25,332 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:25:25,332 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:25:25,333 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:25:25,333 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 04:25:25,334 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:25:25,334 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:25:25,334 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:25:25,335 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:25:25,335 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:25:25,336 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:25:25,336 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:25:25,336 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:25:25,337 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:25:25,337 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:25:25,337 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:25:25,337 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:25:25,337 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:25:25,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:25:25,338 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:25:25,338 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:25:25,338 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:25:25,339 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:25:25,339 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:25:25,339 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 566e2cbe460cf96671c9cef5a53ce51910e23c462e96f394be80b957976729c5 [2023-11-29 04:25:25,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:25:25,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:25:25,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:25:25,594 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:25:25,595 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:25:25,596 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/goblint-regression/28-race_reach_72-funloop_hard_racing.i [2023-11-29 04:25:28,423 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:25:28,679 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:25:28,680 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/sv-benchmarks/c/goblint-regression/28-race_reach_72-funloop_hard_racing.i [2023-11-29 04:25:28,696 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/data/b11853722/00bf8bdc3fea4dd798bac13a5436d568/FLAG20a922329 [2023-11-29 04:25:28,709 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/data/b11853722/00bf8bdc3fea4dd798bac13a5436d568 [2023-11-29 04:25:28,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:25:28,713 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:25:28,714 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:25:28,715 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:25:28,719 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:25:28,720 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:25:28" (1/1) ... [2023-11-29 04:25:28,721 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b18199d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:25:28, skipping insertion in model container [2023-11-29 04:25:28,721 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:25:28" (1/1) ... [2023-11-29 04:25:28,767 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:25:29,208 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:25:29,230 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:25:29,283 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:25:29,336 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:25:29,336 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:25:29 WrapperNode [2023-11-29 04:25:29,337 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:25:29,337 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:25:29,338 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:25:29,338 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:25:29,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:25:29" (1/1) ... [2023-11-29 04:25:29,364 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:25:29" (1/1) ... [2023-11-29 04:25:29,424 INFO L138 Inliner]: procedures = 272, calls = 50, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 319 [2023-11-29 04:25:29,425 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:25:29,425 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:25:29,425 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:25:29,426 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:25:29,438 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:25:29" (1/1) ... [2023-11-29 04:25:29,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:25:29" (1/1) ... [2023-11-29 04:25:29,443 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:25:29" (1/1) ... [2023-11-29 04:25:29,461 INFO L175 MemorySlicer]: Split 25 memory accesses to 4 slices as follows [2, 5, 2, 16]. 64 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0, 0]. The 8 writes are split as follows [0, 0, 1, 7]. [2023-11-29 04:25:29,462 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:25:29" (1/1) ... [2023-11-29 04:25:29,462 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:25:29" (1/1) ... [2023-11-29 04:25:29,474 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:25:29" (1/1) ... [2023-11-29 04:25:29,481 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:25:29" (1/1) ... [2023-11-29 04:25:29,484 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:25:29" (1/1) ... [2023-11-29 04:25:29,487 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:25:29" (1/1) ... [2023-11-29 04:25:29,492 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:25:29,493 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:25:29,493 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:25:29,494 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:25:29,495 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:25:29" (1/1) ... [2023-11-29 04:25:29,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:25:29,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:29,523 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:25:29,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:25:29,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 04:25:29,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 04:25:29,558 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 04:25:29,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 04:25:29,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 04:25:29,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 04:25:29,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 04:25:29,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 04:25:29,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 04:25:29,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 04:25:29,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 04:25:29,559 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 04:25:29,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:25:29,559 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-29 04:25:29,559 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-29 04:25:29,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:25:29,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 04:25:29,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 04:25:29,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 04:25:29,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:25:29,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:25:29,562 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 04:25:29,702 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:25:29,704 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:25:30,077 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:25:30,248 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:25:30,248 INFO L309 CfgBuilder]: Removed 35 assume(true) statements. [2023-11-29 04:25:30,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:25:30 BoogieIcfgContainer [2023-11-29 04:25:30,249 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:25:30,252 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:25:30,252 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:25:30,255 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:25:30,255 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:25:28" (1/3) ... [2023-11-29 04:25:30,256 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@451866ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:25:30, skipping insertion in model container [2023-11-29 04:25:30,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:25:29" (2/3) ... [2023-11-29 04:25:30,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@451866ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:25:30, skipping insertion in model container [2023-11-29 04:25:30,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:25:30" (3/3) ... [2023-11-29 04:25:30,258 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_72-funloop_hard_racing.i [2023-11-29 04:25:30,266 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 04:25:30,274 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:25:30,275 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-29 04:25:30,275 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 04:25:30,344 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-29 04:25:30,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 166 transitions, 339 flow [2023-11-29 04:25:30,452 INFO L124 PetriNetUnfolderBase]: 60/262 cut-off events. [2023-11-29 04:25:30,452 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 04:25:30,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 262 events. 60/262 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1292 event pairs, 0 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 151. Up to 8 conditions per place. [2023-11-29 04:25:30,459 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 166 transitions, 339 flow [2023-11-29 04:25:30,467 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 165 transitions, 337 flow [2023-11-29 04:25:30,478 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:25:30,485 INFO L357 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, mHoare=true, 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;@966361b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:25:30,485 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2023-11-29 04:25:30,488 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 04:25:30,488 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-11-29 04:25:30,488 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 04:25:30,488 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:25:30,489 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-29 04:25:30,490 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2023-11-29 04:25:30,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:30,496 INFO L85 PathProgramCache]: Analyzing trace with hash 841702, now seen corresponding path program 1 times [2023-11-29 04:25:30,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:30,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342044856] [2023-11-29 04:25:30,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:30,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:30,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:30,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:25:30,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:30,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342044856] [2023-11-29 04:25:30,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342044856] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:25:30,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:25:30,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:25:30,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199857692] [2023-11-29 04:25:30,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:25:30,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:25:30,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:30,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:25:30,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:25:30,807 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 166 [2023-11-29 04:25:30,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 165 transitions, 337 flow. Second operand has 4 states, 4 states have (on average 62.75) internal successors, (251), 4 states have internal predecessors, (251), 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) [2023-11-29 04:25:30,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:25:30,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 166 [2023-11-29 04:25:30,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:25:31,491 INFO L124 PetriNetUnfolderBase]: 993/3080 cut-off events. [2023-11-29 04:25:31,491 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 04:25:31,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4980 conditions, 3080 events. 993/3080 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 25051 event pairs, 840 based on Foata normal form. 541/3201 useless extension candidates. Maximal degree in co-relation 4829. Up to 1893 conditions per place. [2023-11-29 04:25:31,519 INFO L140 encePairwiseOnDemand]: 130/166 looper letters, 72 selfloop transitions, 3 changer transitions 0/137 dead transitions. [2023-11-29 04:25:31,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 137 transitions, 431 flow [2023-11-29 04:25:31,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:25:31,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 04:25:31,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 356 transitions. [2023-11-29 04:25:31,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.536144578313253 [2023-11-29 04:25:31,538 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 356 transitions. [2023-11-29 04:25:31,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 356 transitions. [2023-11-29 04:25:31,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:25:31,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 356 transitions. [2023-11-29 04:25:31,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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) [2023-11-29 04:25:31,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 166.0) internal successors, (830), 5 states have internal predecessors, (830), 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) [2023-11-29 04:25:31,555 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 166.0) internal successors, (830), 5 states have internal predecessors, (830), 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) [2023-11-29 04:25:31,557 INFO L175 Difference]: Start difference. First operand has 132 places, 165 transitions, 337 flow. Second operand 4 states and 356 transitions. [2023-11-29 04:25:31,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 137 transitions, 431 flow [2023-11-29 04:25:31,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 137 transitions, 431 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 04:25:31,568 INFO L231 Difference]: Finished difference. Result has 137 places, 137 transitions, 301 flow [2023-11-29 04:25:31,570 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=301, PETRI_PLACES=137, PETRI_TRANSITIONS=137} [2023-11-29 04:25:31,574 INFO L281 CegarLoopForPetriNet]: 132 programPoint places, 5 predicate places. [2023-11-29 04:25:31,575 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 137 transitions, 301 flow [2023-11-29 04:25:31,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.75) internal successors, (251), 4 states have internal predecessors, (251), 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) [2023-11-29 04:25:31,575 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:25:31,576 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-29 04:25:31,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 04:25:31,576 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2023-11-29 04:25:31,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:31,577 INFO L85 PathProgramCache]: Analyzing trace with hash -693724575, now seen corresponding path program 1 times [2023-11-29 04:25:31,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:31,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814157453] [2023-11-29 04:25:31,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:31,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:31,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:31,698 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:25:31,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:31,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814157453] [2023-11-29 04:25:31,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814157453] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:31,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038422580] [2023-11-29 04:25:31,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:31,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:31,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:31,702 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:31,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 04:25:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:31,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:25:31,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:31,863 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:25:31,864 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:25:31,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038422580] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:25:31,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:31,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-29 04:25:31,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763331158] [2023-11-29 04:25:31,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:25:31,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:25:31,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:31,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:25:31,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:25:31,878 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 166 [2023-11-29 04:25:31,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 137 transitions, 301 flow. Second operand has 6 states, 6 states have (on average 62.833333333333336) internal successors, (377), 6 states have internal predecessors, (377), 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) [2023-11-29 04:25:31,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:25:31,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 166 [2023-11-29 04:25:31,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:25:32,459 INFO L124 PetriNetUnfolderBase]: 993/3079 cut-off events. [2023-11-29 04:25:32,459 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-29 04:25:32,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4990 conditions, 3079 events. 993/3079 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 25029 event pairs, 840 based on Foata normal form. 1/2660 useless extension candidates. Maximal degree in co-relation 4972. Up to 1888 conditions per place. [2023-11-29 04:25:32,483 INFO L140 encePairwiseOnDemand]: 161/166 looper letters, 68 selfloop transitions, 6 changer transitions 0/136 dead transitions. [2023-11-29 04:25:32,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 136 transitions, 445 flow [2023-11-29 04:25:32,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:25:32,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 04:25:32,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 447 transitions. [2023-11-29 04:25:32,488 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44879518072289154 [2023-11-29 04:25:32,488 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 447 transitions. [2023-11-29 04:25:32,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 447 transitions. [2023-11-29 04:25:32,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:25:32,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 447 transitions. [2023-11-29 04:25:32,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 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) [2023-11-29 04:25:32,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 166.0) internal successors, (1162), 7 states have internal predecessors, (1162), 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) [2023-11-29 04:25:32,523 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 166.0) internal successors, (1162), 7 states have internal predecessors, (1162), 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) [2023-11-29 04:25:32,523 INFO L175 Difference]: Start difference. First operand has 137 places, 137 transitions, 301 flow. Second operand 6 states and 447 transitions. [2023-11-29 04:25:32,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 136 transitions, 445 flow [2023-11-29 04:25:32,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 136 transitions, 443 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 04:25:32,528 INFO L231 Difference]: Finished difference. Result has 140 places, 136 transitions, 307 flow [2023-11-29 04:25:32,529 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=307, PETRI_PLACES=140, PETRI_TRANSITIONS=136} [2023-11-29 04:25:32,530 INFO L281 CegarLoopForPetriNet]: 132 programPoint places, 8 predicate places. [2023-11-29 04:25:32,530 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 136 transitions, 307 flow [2023-11-29 04:25:32,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.833333333333336) internal successors, (377), 6 states have internal predecessors, (377), 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) [2023-11-29 04:25:32,531 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:25:32,531 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2023-11-29 04:25:32,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:25:32,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-29 04:25:32,751 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2023-11-29 04:25:32,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:32,751 INFO L85 PathProgramCache]: Analyzing trace with hash -30624403, now seen corresponding path program 1 times [2023-11-29 04:25:32,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:32,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554855251] [2023-11-29 04:25:32,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:32,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:32,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:32,801 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 04:25:32,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:32,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554855251] [2023-11-29 04:25:32,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554855251] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:25:32,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:25:32,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:25:32,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162504902] [2023-11-29 04:25:32,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:25:32,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:25:32,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:32,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:25:32,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:25:32,808 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 166 [2023-11-29 04:25:32,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 136 transitions, 307 flow. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2023-11-29 04:25:32,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:25:32,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 166 [2023-11-29 04:25:32,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:25:33,257 INFO L124 PetriNetUnfolderBase]: 993/3078 cut-off events. [2023-11-29 04:25:33,257 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-29 04:25:33,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4992 conditions, 3078 events. 993/3078 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 25046 event pairs, 840 based on Foata normal form. 1/2660 useless extension candidates. Maximal degree in co-relation 4968. Up to 1891 conditions per place. [2023-11-29 04:25:33,279 INFO L140 encePairwiseOnDemand]: 163/166 looper letters, 69 selfloop transitions, 4 changer transitions 0/135 dead transitions. [2023-11-29 04:25:33,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 135 transitions, 449 flow [2023-11-29 04:25:33,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:25:33,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 04:25:33,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2023-11-29 04:25:33,281 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5180722891566265 [2023-11-29 04:25:33,281 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 258 transitions. [2023-11-29 04:25:33,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 258 transitions. [2023-11-29 04:25:33,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:25:33,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 258 transitions. [2023-11-29 04:25:33,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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) [2023-11-29 04:25:33,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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) [2023-11-29 04:25:33,285 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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) [2023-11-29 04:25:33,285 INFO L175 Difference]: Start difference. First operand has 140 places, 136 transitions, 307 flow. Second operand 3 states and 258 transitions. [2023-11-29 04:25:33,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 135 transitions, 449 flow [2023-11-29 04:25:33,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 135 transitions, 427 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-11-29 04:25:33,291 INFO L231 Difference]: Finished difference. Result has 135 places, 135 transitions, 289 flow [2023-11-29 04:25:33,291 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=289, PETRI_PLACES=135, PETRI_TRANSITIONS=135} [2023-11-29 04:25:33,292 INFO L281 CegarLoopForPetriNet]: 132 programPoint places, 3 predicate places. [2023-11-29 04:25:33,292 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 135 transitions, 289 flow [2023-11-29 04:25:33,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2023-11-29 04:25:33,293 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:25:33,293 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:33,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 04:25:33,293 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2023-11-29 04:25:33,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:33,294 INFO L85 PathProgramCache]: Analyzing trace with hash 636103539, now seen corresponding path program 1 times [2023-11-29 04:25:33,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:33,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481772038] [2023-11-29 04:25:33,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:33,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:33,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:25:33,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:33,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481772038] [2023-11-29 04:25:33,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481772038] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:33,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076547075] [2023-11-29 04:25:33,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:33,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:33,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:33,365 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:33,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 04:25:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:33,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:25:33,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:33,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:25:33,477 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:33,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:25:33,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076547075] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:25:33,508 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:25:33,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2023-11-29 04:25:33,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833557924] [2023-11-29 04:25:33,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:33,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:25:33,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:33,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:25:33,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:25:33,523 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 166 [2023-11-29 04:25:33,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 135 transitions, 289 flow. Second operand has 10 states, 10 states have (on average 63.4) internal successors, (634), 10 states have internal predecessors, (634), 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) [2023-11-29 04:25:33,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:25:33,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 166 [2023-11-29 04:25:33,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:25:34,006 INFO L124 PetriNetUnfolderBase]: 993/3082 cut-off events. [2023-11-29 04:25:34,006 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-11-29 04:25:34,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4995 conditions, 3082 events. 993/3082 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 25022 event pairs, 840 based on Foata normal form. 2/2666 useless extension candidates. Maximal degree in co-relation 4961. Up to 1889 conditions per place. [2023-11-29 04:25:34,023 INFO L140 encePairwiseOnDemand]: 162/166 looper letters, 69 selfloop transitions, 7 changer transitions 0/138 dead transitions. [2023-11-29 04:25:34,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 138 transitions, 456 flow [2023-11-29 04:25:34,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:25:34,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-29 04:25:34,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 512 transitions. [2023-11-29 04:25:34,026 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4406196213425129 [2023-11-29 04:25:34,027 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 512 transitions. [2023-11-29 04:25:34,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 512 transitions. [2023-11-29 04:25:34,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:25:34,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 512 transitions. [2023-11-29 04:25:34,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 73.14285714285714) internal successors, (512), 7 states have internal predecessors, (512), 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) [2023-11-29 04:25:34,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 166.0) internal successors, (1328), 8 states have internal predecessors, (1328), 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) [2023-11-29 04:25:34,033 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 166.0) internal successors, (1328), 8 states have internal predecessors, (1328), 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) [2023-11-29 04:25:34,033 INFO L175 Difference]: Start difference. First operand has 135 places, 135 transitions, 289 flow. Second operand 7 states and 512 transitions. [2023-11-29 04:25:34,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 138 transitions, 456 flow [2023-11-29 04:25:34,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 138 transitions, 442 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 04:25:34,037 INFO L231 Difference]: Finished difference. Result has 141 places, 138 transitions, 315 flow [2023-11-29 04:25:34,037 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=315, PETRI_PLACES=141, PETRI_TRANSITIONS=138} [2023-11-29 04:25:34,038 INFO L281 CegarLoopForPetriNet]: 132 programPoint places, 9 predicate places. [2023-11-29 04:25:34,039 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 138 transitions, 315 flow [2023-11-29 04:25:34,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.4) internal successors, (634), 10 states have internal predecessors, (634), 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) [2023-11-29 04:25:34,040 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:25:34,040 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:34,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 04:25:34,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:34,244 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2023-11-29 04:25:34,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:34,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1439874451, now seen corresponding path program 2 times [2023-11-29 04:25:34,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:34,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697135417] [2023-11-29 04:25:34,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:34,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:34,326 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 04:25:34,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:34,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697135417] [2023-11-29 04:25:34,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697135417] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:25:34,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:25:34,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:25:34,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74898376] [2023-11-29 04:25:34,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:25:34,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:25:34,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:34,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:25:34,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:25:34,336 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 166 [2023-11-29 04:25:34,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 138 transitions, 315 flow. Second operand has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-29 04:25:34,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:25:34,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 166 [2023-11-29 04:25:34,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:25:34,774 INFO L124 PetriNetUnfolderBase]: 948/2684 cut-off events. [2023-11-29 04:25:34,775 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-29 04:25:34,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4532 conditions, 2684 events. 948/2684 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 21084 event pairs, 80 based on Foata normal form. 21/2376 useless extension candidates. Maximal degree in co-relation 4493. Up to 1758 conditions per place. [2023-11-29 04:25:34,792 INFO L140 encePairwiseOnDemand]: 160/166 looper letters, 116 selfloop transitions, 3 changer transitions 0/179 dead transitions. [2023-11-29 04:25:34,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 179 transitions, 635 flow [2023-11-29 04:25:34,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:25:34,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 04:25:34,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 365 transitions. [2023-11-29 04:25:34,794 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5496987951807228 [2023-11-29 04:25:34,795 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 365 transitions. [2023-11-29 04:25:34,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 365 transitions. [2023-11-29 04:25:34,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:25:34,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 365 transitions. [2023-11-29 04:25:34,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 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) [2023-11-29 04:25:34,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 166.0) internal successors, (830), 5 states have internal predecessors, (830), 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) [2023-11-29 04:25:34,798 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 166.0) internal successors, (830), 5 states have internal predecessors, (830), 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) [2023-11-29 04:25:34,799 INFO L175 Difference]: Start difference. First operand has 141 places, 138 transitions, 315 flow. Second operand 4 states and 365 transitions. [2023-11-29 04:25:34,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 179 transitions, 635 flow [2023-11-29 04:25:34,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 179 transitions, 631 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 04:25:34,805 INFO L231 Difference]: Finished difference. Result has 141 places, 136 transitions, 317 flow [2023-11-29 04:25:34,805 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=317, PETRI_PLACES=141, PETRI_TRANSITIONS=136} [2023-11-29 04:25:34,806 INFO L281 CegarLoopForPetriNet]: 132 programPoint places, 9 predicate places. [2023-11-29 04:25:34,806 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 136 transitions, 317 flow [2023-11-29 04:25:34,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-29 04:25:34,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:25:34,806 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:34,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 04:25:34,807 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2023-11-29 04:25:34,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:34,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1462264023, now seen corresponding path program 1 times [2023-11-29 04:25:34,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:34,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168205237] [2023-11-29 04:25:34,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:34,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:34,935 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 04:25:34,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:34,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168205237] [2023-11-29 04:25:34,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168205237] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:34,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241147139] [2023-11-29 04:25:34,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:34,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:34,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:34,937 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:34,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 04:25:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:35,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:25:35,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:35,084 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 04:25:35,085 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:35,171 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 04:25:35,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241147139] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:25:35,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:25:35,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2023-11-29 04:25:35,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611380508] [2023-11-29 04:25:35,172 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:35,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 04:25:35,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:35,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 04:25:35,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 04:25:35,192 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 166 [2023-11-29 04:25:35,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 136 transitions, 317 flow. Second operand has 18 states, 18 states have (on average 63.27777777777778) internal successors, (1139), 18 states have internal predecessors, (1139), 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) [2023-11-29 04:25:35,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:25:35,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 166 [2023-11-29 04:25:35,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:25:35,817 INFO L124 PetriNetUnfolderBase]: 990/2967 cut-off events. [2023-11-29 04:25:35,817 INFO L125 PetriNetUnfolderBase]: For 100/100 co-relation queries the response was YES. [2023-11-29 04:25:35,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4960 conditions, 2967 events. 990/2967 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 23632 event pairs, 840 based on Foata normal form. 4/2597 useless extension candidates. Maximal degree in co-relation 4885. Up to 1853 conditions per place. [2023-11-29 04:25:35,836 INFO L140 encePairwiseOnDemand]: 162/166 looper letters, 69 selfloop transitions, 15 changer transitions 0/144 dead transitions. [2023-11-29 04:25:35,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 144 transitions, 533 flow [2023-11-29 04:25:35,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:25:35,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-29 04:25:35,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1018 transitions. [2023-11-29 04:25:35,841 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40883534136546185 [2023-11-29 04:25:35,841 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1018 transitions. [2023-11-29 04:25:35,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1018 transitions. [2023-11-29 04:25:35,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:25:35,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1018 transitions. [2023-11-29 04:25:35,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 67.86666666666666) internal successors, (1018), 15 states have internal predecessors, (1018), 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) [2023-11-29 04:25:35,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 166.0) internal successors, (2656), 16 states have internal predecessors, (2656), 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) [2023-11-29 04:25:35,851 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 166.0) internal successors, (2656), 16 states have internal predecessors, (2656), 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) [2023-11-29 04:25:35,851 INFO L175 Difference]: Start difference. First operand has 141 places, 136 transitions, 317 flow. Second operand 15 states and 1018 transitions. [2023-11-29 04:25:35,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 144 transitions, 533 flow [2023-11-29 04:25:35,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 144 transitions, 527 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 04:25:35,856 INFO L231 Difference]: Finished difference. Result has 156 places, 144 transitions, 408 flow [2023-11-29 04:25:35,856 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=408, PETRI_PLACES=156, PETRI_TRANSITIONS=144} [2023-11-29 04:25:35,857 INFO L281 CegarLoopForPetriNet]: 132 programPoint places, 24 predicate places. [2023-11-29 04:25:35,857 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 144 transitions, 408 flow [2023-11-29 04:25:35,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 63.27777777777778) internal successors, (1139), 18 states have internal predecessors, (1139), 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) [2023-11-29 04:25:35,858 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:25:35,858 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:35,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 04:25:36,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 04:25:36,064 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2023-11-29 04:25:36,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:36,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1573854359, now seen corresponding path program 2 times [2023-11-29 04:25:36,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:36,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606928523] [2023-11-29 04:25:36,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:36,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:36,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:36,340 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 04:25:36,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:36,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606928523] [2023-11-29 04:25:36,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606928523] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:36,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91998420] [2023-11-29 04:25:36,341 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:25:36,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:36,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:36,342 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:36,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 04:25:36,441 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:25:36,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:25:36,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 04:25:36,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:36,512 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 04:25:36,512 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:36,704 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 04:25:36,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91998420] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:25:36,704 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:25:36,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2023-11-29 04:25:36,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126397234] [2023-11-29 04:25:36,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:36,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 04:25:36,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:36,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 04:25:36,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-11-29 04:25:36,729 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 166 [2023-11-29 04:25:36,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 144 transitions, 408 flow. Second operand has 23 states, 23 states have (on average 63.26086956521739) internal successors, (1455), 23 states have internal predecessors, (1455), 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) [2023-11-29 04:25:36,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:25:36,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 166 [2023-11-29 04:25:36,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:25:37,525 INFO L124 PetriNetUnfolderBase]: 990/2976 cut-off events. [2023-11-29 04:25:37,525 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2023-11-29 04:25:37,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4981 conditions, 2976 events. 990/2976 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 23626 event pairs, 840 based on Foata normal form. 3/2605 useless extension candidates. Maximal degree in co-relation 4846. Up to 1853 conditions per place. [2023-11-29 04:25:37,544 INFO L140 encePairwiseOnDemand]: 162/166 looper letters, 69 selfloop transitions, 21 changer transitions 0/150 dead transitions. [2023-11-29 04:25:37,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 150 transitions, 642 flow [2023-11-29 04:25:37,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 04:25:37,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-29 04:25:37,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1395 transitions. [2023-11-29 04:25:37,552 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40017211703958694 [2023-11-29 04:25:37,552 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1395 transitions. [2023-11-29 04:25:37,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1395 transitions. [2023-11-29 04:25:37,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:25:37,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1395 transitions. [2023-11-29 04:25:37,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.42857142857143) internal successors, (1395), 21 states have internal predecessors, (1395), 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) [2023-11-29 04:25:37,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 166.0) internal successors, (3652), 22 states have internal predecessors, (3652), 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) [2023-11-29 04:25:37,567 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 166.0) internal successors, (3652), 22 states have internal predecessors, (3652), 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) [2023-11-29 04:25:37,567 INFO L175 Difference]: Start difference. First operand has 156 places, 144 transitions, 408 flow. Second operand 21 states and 1395 transitions. [2023-11-29 04:25:37,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 150 transitions, 642 flow [2023-11-29 04:25:37,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 150 transitions, 632 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-11-29 04:25:37,574 INFO L231 Difference]: Finished difference. Result has 175 places, 150 transitions, 509 flow [2023-11-29 04:25:37,574 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=509, PETRI_PLACES=175, PETRI_TRANSITIONS=150} [2023-11-29 04:25:37,575 INFO L281 CegarLoopForPetriNet]: 132 programPoint places, 43 predicate places. [2023-11-29 04:25:37,575 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 150 transitions, 509 flow [2023-11-29 04:25:37,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 63.26086956521739) internal successors, (1455), 23 states have internal predecessors, (1455), 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) [2023-11-29 04:25:37,576 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:25:37,576 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:37,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 04:25:37,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:37,778 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2023-11-29 04:25:37,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:37,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1433851740, now seen corresponding path program 3 times [2023-11-29 04:25:37,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:37,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169368884] [2023-11-29 04:25:37,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:37,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:25:37,825 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:25:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:25:37,878 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:25:37,879 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 04:25:37,880 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2023-11-29 04:25:37,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 29 remaining) [2023-11-29 04:25:37,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 29 remaining) [2023-11-29 04:25:37,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 29 remaining) [2023-11-29 04:25:37,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 29 remaining) [2023-11-29 04:25:37,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 29 remaining) [2023-11-29 04:25:37,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 29 remaining) [2023-11-29 04:25:37,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 29 remaining) [2023-11-29 04:25:37,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 29 remaining) [2023-11-29 04:25:37,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 29 remaining) [2023-11-29 04:25:37,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 29 remaining) [2023-11-29 04:25:37,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 29 remaining) [2023-11-29 04:25:37,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 29 remaining) [2023-11-29 04:25:37,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 29 remaining) [2023-11-29 04:25:37,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 29 remaining) [2023-11-29 04:25:37,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 29 remaining) [2023-11-29 04:25:37,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 29 remaining) [2023-11-29 04:25:37,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 29 remaining) [2023-11-29 04:25:37,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 29 remaining) [2023-11-29 04:25:37,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 29 remaining) [2023-11-29 04:25:37,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 29 remaining) [2023-11-29 04:25:37,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 29 remaining) [2023-11-29 04:25:37,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 29 remaining) [2023-11-29 04:25:37,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 29 remaining) [2023-11-29 04:25:37,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 29 remaining) [2023-11-29 04:25:37,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 29 remaining) [2023-11-29 04:25:37,887 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 29 remaining) [2023-11-29 04:25:37,887 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 29 remaining) [2023-11-29 04:25:37,887 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 29 remaining) [2023-11-29 04:25:37,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 04:25:37,887 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1] [2023-11-29 04:25:37,890 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 04:25:37,890 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-29 04:25:37,942 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-29 04:25:37,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 218 transitions, 452 flow [2023-11-29 04:25:38,029 INFO L124 PetriNetUnfolderBase]: 97/429 cut-off events. [2023-11-29 04:25:38,029 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-29 04:25:38,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 441 conditions, 429 events. 97/429 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2388 event pairs, 0 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 264. Up to 12 conditions per place. [2023-11-29 04:25:38,032 INFO L82 GeneralOperation]: Start removeDead. Operand has 173 places, 218 transitions, 452 flow [2023-11-29 04:25:38,040 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 173 places, 218 transitions, 452 flow [2023-11-29 04:25:38,041 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:25:38,042 INFO L357 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, mHoare=true, 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;@966361b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:25:38,042 INFO L358 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2023-11-29 04:25:38,044 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 04:25:38,044 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-11-29 04:25:38,045 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 04:25:38,045 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:25:38,045 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-29 04:25:38,045 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2023-11-29 04:25:38,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:38,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1058176, now seen corresponding path program 1 times [2023-11-29 04:25:38,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:38,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169941820] [2023-11-29 04:25:38,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:38,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:38,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:38,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:25:38,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:38,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169941820] [2023-11-29 04:25:38,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169941820] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:25:38,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:25:38,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:25:38,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106060626] [2023-11-29 04:25:38,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:25:38,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:25:38,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:38,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:25:38,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:25:38,088 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 218 [2023-11-29 04:25:38,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 218 transitions, 452 flow. Second operand has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 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) [2023-11-29 04:25:38,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:25:38,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 218 [2023-11-29 04:25:38,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:25:45,527 INFO L124 PetriNetUnfolderBase]: 41805/90564 cut-off events. [2023-11-29 04:25:45,527 INFO L125 PetriNetUnfolderBase]: For 139/139 co-relation queries the response was YES. [2023-11-29 04:25:45,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151610 conditions, 90564 events. 41805/90564 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 2499. Compared 1045697 event pairs, 36680 based on Foata normal form. 17707/96158 useless extension candidates. Maximal degree in co-relation 112993. Up to 60932 conditions per place. [2023-11-29 04:25:46,055 INFO L140 encePairwiseOnDemand]: 172/218 looper letters, 96 selfloop transitions, 3 changer transitions 0/180 dead transitions. [2023-11-29 04:25:46,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 180 transitions, 574 flow [2023-11-29 04:25:46,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:25:46,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 04:25:46,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 466 transitions. [2023-11-29 04:25:46,058 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5344036697247706 [2023-11-29 04:25:46,058 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 466 transitions. [2023-11-29 04:25:46,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 466 transitions. [2023-11-29 04:25:46,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:25:46,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 466 transitions. [2023-11-29 04:25:46,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 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) [2023-11-29 04:25:46,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 218.0) internal successors, (1090), 5 states have internal predecessors, (1090), 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) [2023-11-29 04:25:46,063 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 218.0) internal successors, (1090), 5 states have internal predecessors, (1090), 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) [2023-11-29 04:25:46,063 INFO L175 Difference]: Start difference. First operand has 173 places, 218 transitions, 452 flow. Second operand 4 states and 466 transitions. [2023-11-29 04:25:46,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 180 transitions, 574 flow [2023-11-29 04:25:46,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 180 transitions, 574 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 04:25:46,069 INFO L231 Difference]: Finished difference. Result has 178 places, 180 transitions, 396 flow [2023-11-29 04:25:46,070 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=396, PETRI_PLACES=178, PETRI_TRANSITIONS=180} [2023-11-29 04:25:46,071 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, 5 predicate places. [2023-11-29 04:25:46,071 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 180 transitions, 396 flow [2023-11-29 04:25:46,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 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) [2023-11-29 04:25:46,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:25:46,072 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-29 04:25:46,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 04:25:46,072 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2023-11-29 04:25:46,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:46,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1460501537, now seen corresponding path program 1 times [2023-11-29 04:25:46,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:46,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011738111] [2023-11-29 04:25:46,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:46,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:46,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:46,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:25:46,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:46,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011738111] [2023-11-29 04:25:46,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011738111] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:46,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832015878] [2023-11-29 04:25:46,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:46,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:46,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:46,130 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:46,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 04:25:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:46,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:25:46,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:46,257 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:25:46,258 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:25:46,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832015878] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:25:46,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:46,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-29 04:25:46,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055285486] [2023-11-29 04:25:46,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:25:46,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:25:46,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:46,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:25:46,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:25:46,267 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 218 [2023-11-29 04:25:46,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 180 transitions, 396 flow. Second operand has 6 states, 6 states have (on average 81.83333333333333) internal successors, (491), 6 states have internal predecessors, (491), 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) [2023-11-29 04:25:46,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:25:46,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 218 [2023-11-29 04:25:46,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:25:53,846 INFO L124 PetriNetUnfolderBase]: 41805/90563 cut-off events. [2023-11-29 04:25:53,846 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2023-11-29 04:25:53,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151620 conditions, 90563 events. 41805/90563 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 2499. Compared 1045662 event pairs, 36680 based on Foata normal form. 1/78451 useless extension candidates. Maximal degree in co-relation 151601. Up to 60927 conditions per place. [2023-11-29 04:25:54,205 INFO L140 encePairwiseOnDemand]: 213/218 looper letters, 92 selfloop transitions, 6 changer transitions 0/179 dead transitions. [2023-11-29 04:25:54,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 179 transitions, 588 flow [2023-11-29 04:25:54,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:25:54,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 04:25:54,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 585 transitions. [2023-11-29 04:25:54,207 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44724770642201833 [2023-11-29 04:25:54,207 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 585 transitions. [2023-11-29 04:25:54,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 585 transitions. [2023-11-29 04:25:54,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:25:54,208 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 585 transitions. [2023-11-29 04:25:54,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.5) internal successors, (585), 6 states have internal predecessors, (585), 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) [2023-11-29 04:25:54,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 218.0) internal successors, (1526), 7 states have internal predecessors, (1526), 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) [2023-11-29 04:25:54,211 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 218.0) internal successors, (1526), 7 states have internal predecessors, (1526), 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) [2023-11-29 04:25:54,211 INFO L175 Difference]: Start difference. First operand has 178 places, 180 transitions, 396 flow. Second operand 6 states and 585 transitions. [2023-11-29 04:25:54,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 179 transitions, 588 flow [2023-11-29 04:25:54,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 179 transitions, 586 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 04:25:54,215 INFO L231 Difference]: Finished difference. Result has 181 places, 179 transitions, 402 flow [2023-11-29 04:25:54,215 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=402, PETRI_PLACES=181, PETRI_TRANSITIONS=179} [2023-11-29 04:25:54,216 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, 8 predicate places. [2023-11-29 04:25:54,216 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 179 transitions, 402 flow [2023-11-29 04:25:54,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.83333333333333) internal successors, (491), 6 states have internal predecessors, (491), 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) [2023-11-29 04:25:54,216 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:25:54,216 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2023-11-29 04:25:54,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 04:25:54,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 04:25:54,417 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2023-11-29 04:25:54,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:54,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1969091449, now seen corresponding path program 1 times [2023-11-29 04:25:54,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:54,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535327777] [2023-11-29 04:25:54,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:54,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:54,436 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 04:25:54,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:54,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535327777] [2023-11-29 04:25:54,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535327777] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:25:54,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:25:54,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:25:54,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110741435] [2023-11-29 04:25:54,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:25:54,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:25:54,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:54,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:25:54,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:25:54,442 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 218 [2023-11-29 04:25:54,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 179 transitions, 402 flow. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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) [2023-11-29 04:25:54,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:25:54,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 218 [2023-11-29 04:25:54,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:26:01,735 INFO L124 PetriNetUnfolderBase]: 41805/90562 cut-off events. [2023-11-29 04:26:01,735 INFO L125 PetriNetUnfolderBase]: For 146/146 co-relation queries the response was YES. [2023-11-29 04:26:01,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151622 conditions, 90562 events. 41805/90562 cut-off events. For 146/146 co-relation queries the response was YES. Maximal size of possible extension queue 2496. Compared 1045494 event pairs, 36680 based on Foata normal form. 1/78451 useless extension candidates. Maximal degree in co-relation 151597. Up to 60930 conditions per place. [2023-11-29 04:26:02,138 INFO L140 encePairwiseOnDemand]: 215/218 looper letters, 93 selfloop transitions, 4 changer transitions 0/178 dead transitions. [2023-11-29 04:26:02,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 178 transitions, 592 flow [2023-11-29 04:26:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:26:02,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 04:26:02,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 339 transitions. [2023-11-29 04:26:02,140 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.518348623853211 [2023-11-29 04:26:02,141 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 339 transitions. [2023-11-29 04:26:02,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 339 transitions. [2023-11-29 04:26:02,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:26:02,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 339 transitions. [2023-11-29 04:26:02,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 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) [2023-11-29 04:26:02,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 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) [2023-11-29 04:26:02,144 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 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) [2023-11-29 04:26:02,144 INFO L175 Difference]: Start difference. First operand has 181 places, 179 transitions, 402 flow. Second operand 3 states and 339 transitions. [2023-11-29 04:26:02,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 178 transitions, 592 flow [2023-11-29 04:26:02,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 178 transitions, 570 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-11-29 04:26:02,151 INFO L231 Difference]: Finished difference. Result has 176 places, 178 transitions, 384 flow [2023-11-29 04:26:02,151 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=384, PETRI_PLACES=176, PETRI_TRANSITIONS=178} [2023-11-29 04:26:02,152 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, 3 predicate places. [2023-11-29 04:26:02,152 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 178 transitions, 384 flow [2023-11-29 04:26:02,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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) [2023-11-29 04:26:02,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:26:02,153 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:02,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 04:26:02,153 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2023-11-29 04:26:02,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:02,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1785133823, now seen corresponding path program 1 times [2023-11-29 04:26:02,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:02,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385635687] [2023-11-29 04:26:02,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:02,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:02,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:02,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:26:02,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:02,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385635687] [2023-11-29 04:26:02,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385635687] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:26:02,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984054467] [2023-11-29 04:26:02,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:02,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:02,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:02,201 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:02,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 04:26:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:02,296 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:26:02,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:02,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:26:02,314 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:02,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:26:02,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984054467] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:26:02,340 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:26:02,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2023-11-29 04:26:02,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584357623] [2023-11-29 04:26:02,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:02,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:26:02,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:02,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:26:02,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:26:02,353 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 218 [2023-11-29 04:26:02,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 178 transitions, 384 flow. Second operand has 10 states, 10 states have (on average 82.4) internal successors, (824), 10 states have internal predecessors, (824), 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) [2023-11-29 04:26:02,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:26:02,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 218 [2023-11-29 04:26:02,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:26:09,667 INFO L124 PetriNetUnfolderBase]: 41805/90566 cut-off events. [2023-11-29 04:26:09,667 INFO L125 PetriNetUnfolderBase]: For 148/148 co-relation queries the response was YES. [2023-11-29 04:26:09,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151625 conditions, 90566 events. 41805/90566 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 2496. Compared 1045622 event pairs, 36680 based on Foata normal form. 2/78457 useless extension candidates. Maximal degree in co-relation 151590. Up to 60928 conditions per place. [2023-11-29 04:26:10,058 INFO L140 encePairwiseOnDemand]: 214/218 looper letters, 93 selfloop transitions, 7 changer transitions 0/181 dead transitions. [2023-11-29 04:26:10,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 181 transitions, 599 flow [2023-11-29 04:26:10,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:26:10,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-29 04:26:10,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 669 transitions. [2023-11-29 04:26:10,062 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4384010484927916 [2023-11-29 04:26:10,062 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 669 transitions. [2023-11-29 04:26:10,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 669 transitions. [2023-11-29 04:26:10,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:26:10,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 669 transitions. [2023-11-29 04:26:10,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 95.57142857142857) internal successors, (669), 7 states have internal predecessors, (669), 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) [2023-11-29 04:26:10,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 218.0) internal successors, (1744), 8 states have internal predecessors, (1744), 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) [2023-11-29 04:26:10,069 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 218.0) internal successors, (1744), 8 states have internal predecessors, (1744), 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) [2023-11-29 04:26:10,069 INFO L175 Difference]: Start difference. First operand has 176 places, 178 transitions, 384 flow. Second operand 7 states and 669 transitions. [2023-11-29 04:26:10,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 181 transitions, 599 flow [2023-11-29 04:26:10,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 181 transitions, 585 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 04:26:10,075 INFO L231 Difference]: Finished difference. Result has 182 places, 181 transitions, 410 flow [2023-11-29 04:26:10,076 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=410, PETRI_PLACES=182, PETRI_TRANSITIONS=181} [2023-11-29 04:26:10,077 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, 9 predicate places. [2023-11-29 04:26:10,077 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 181 transitions, 410 flow [2023-11-29 04:26:10,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 82.4) internal successors, (824), 10 states have internal predecessors, (824), 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) [2023-11-29 04:26:10,078 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:26:10,078 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:10,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 04:26:10,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 04:26:10,279 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2023-11-29 04:26:10,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:10,279 INFO L85 PathProgramCache]: Analyzing trace with hash -265641121, now seen corresponding path program 2 times [2023-11-29 04:26:10,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:10,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644097104] [2023-11-29 04:26:10,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:10,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:10,323 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 04:26:10,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:10,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644097104] [2023-11-29 04:26:10,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644097104] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:26:10,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:26:10,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:26:10,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116528002] [2023-11-29 04:26:10,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:26:10,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:26:10,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:10,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:26:10,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:26:10,333 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 218 [2023-11-29 04:26:10,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 181 transitions, 410 flow. Second operand has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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) [2023-11-29 04:26:10,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:26:10,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 218 [2023-11-29 04:26:10,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:26:17,883 INFO L124 PetriNetUnfolderBase]: 42660/89396 cut-off events. [2023-11-29 04:26:17,883 INFO L125 PetriNetUnfolderBase]: For 111/111 co-relation queries the response was YES. [2023-11-29 04:26:18,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152058 conditions, 89396 events. 42660/89396 cut-off events. For 111/111 co-relation queries the response was YES. Maximal size of possible extension queue 2428. Compared 1008088 event pairs, 20554 based on Foata normal form. 21/77482 useless extension candidates. Maximal degree in co-relation 152018. Up to 62465 conditions per place. [2023-11-29 04:26:18,350 INFO L140 encePairwiseOnDemand]: 212/218 looper letters, 144 selfloop transitions, 3 changer transitions 0/226 dead transitions. [2023-11-29 04:26:18,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 226 transitions, 794 flow [2023-11-29 04:26:18,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:26:18,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 04:26:18,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 469 transitions. [2023-11-29 04:26:18,353 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5378440366972477 [2023-11-29 04:26:18,353 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 469 transitions. [2023-11-29 04:26:18,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 469 transitions. [2023-11-29 04:26:18,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:26:18,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 469 transitions. [2023-11-29 04:26:18,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 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) [2023-11-29 04:26:18,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 218.0) internal successors, (1090), 5 states have internal predecessors, (1090), 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) [2023-11-29 04:26:18,359 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 218.0) internal successors, (1090), 5 states have internal predecessors, (1090), 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) [2023-11-29 04:26:18,359 INFO L175 Difference]: Start difference. First operand has 182 places, 181 transitions, 410 flow. Second operand 4 states and 469 transitions. [2023-11-29 04:26:18,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 226 transitions, 794 flow [2023-11-29 04:26:18,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 226 transitions, 790 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 04:26:18,367 INFO L231 Difference]: Finished difference. Result has 185 places, 183 transitions, 430 flow [2023-11-29 04:26:18,368 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=430, PETRI_PLACES=185, PETRI_TRANSITIONS=183} [2023-11-29 04:26:18,368 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, 12 predicate places. [2023-11-29 04:26:18,369 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 183 transitions, 430 flow [2023-11-29 04:26:18,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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) [2023-11-29 04:26:18,369 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:26:18,369 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:18,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 04:26:18,369 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2023-11-29 04:26:18,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:18,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1595474275, now seen corresponding path program 1 times [2023-11-29 04:26:18,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:18,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773655272] [2023-11-29 04:26:18,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:18,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:18,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:18,477 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 04:26:18,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:18,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773655272] [2023-11-29 04:26:18,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773655272] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:26:18,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887251045] [2023-11-29 04:26:18,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:18,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:18,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:18,480 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:18,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 04:26:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:18,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:26:18,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:18,626 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 04:26:18,626 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:18,720 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 04:26:18,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887251045] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:26:18,720 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:26:18,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2023-11-29 04:26:18,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106849070] [2023-11-29 04:26:18,721 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:18,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 04:26:18,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:18,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 04:26:18,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 04:26:18,745 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 218 [2023-11-29 04:26:18,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 183 transitions, 430 flow. Second operand has 18 states, 18 states have (on average 82.33333333333333) internal successors, (1482), 18 states have internal predecessors, (1482), 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) [2023-11-29 04:26:18,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:26:18,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 218 [2023-11-29 04:26:18,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:26:27,044 INFO L124 PetriNetUnfolderBase]: 41801/90614 cut-off events. [2023-11-29 04:26:27,045 INFO L125 PetriNetUnfolderBase]: For 1570/2424 co-relation queries the response was YES. [2023-11-29 04:26:27,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153096 conditions, 90614 events. 41801/90614 cut-off events. For 1570/2424 co-relation queries the response was YES. Maximal size of possible extension queue 2480. Compared 1045775 event pairs, 36680 based on Foata normal form. 4/78971 useless extension candidates. Maximal degree in co-relation 153019. Up to 60878 conditions per place. [2023-11-29 04:26:27,484 INFO L140 encePairwiseOnDemand]: 214/218 looper letters, 95 selfloop transitions, 15 changer transitions 0/191 dead transitions. [2023-11-29 04:26:27,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 191 transitions, 698 flow [2023-11-29 04:26:27,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:26:27,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-29 04:26:27,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1327 transitions. [2023-11-29 04:26:27,491 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40581039755351683 [2023-11-29 04:26:27,491 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1327 transitions. [2023-11-29 04:26:27,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1327 transitions. [2023-11-29 04:26:27,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:26:27,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1327 transitions. [2023-11-29 04:26:27,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 88.46666666666667) internal successors, (1327), 15 states have internal predecessors, (1327), 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) [2023-11-29 04:26:27,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 218.0) internal successors, (3488), 16 states have internal predecessors, (3488), 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) [2023-11-29 04:26:27,506 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 218.0) internal successors, (3488), 16 states have internal predecessors, (3488), 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) [2023-11-29 04:26:27,506 INFO L175 Difference]: Start difference. First operand has 185 places, 183 transitions, 430 flow. Second operand 15 states and 1327 transitions. [2023-11-29 04:26:27,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 191 transitions, 698 flow [2023-11-29 04:26:27,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 191 transitions, 696 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 04:26:27,515 INFO L231 Difference]: Finished difference. Result has 202 places, 191 transitions, 525 flow [2023-11-29 04:26:27,515 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=525, PETRI_PLACES=202, PETRI_TRANSITIONS=191} [2023-11-29 04:26:27,516 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, 29 predicate places. [2023-11-29 04:26:27,516 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 191 transitions, 525 flow [2023-11-29 04:26:27,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 82.33333333333333) internal successors, (1482), 18 states have internal predecessors, (1482), 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) [2023-11-29 04:26:27,517 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:26:27,518 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:27,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 04:26:27,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 04:26:27,718 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2023-11-29 04:26:27,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:27,719 INFO L85 PathProgramCache]: Analyzing trace with hash 907967965, now seen corresponding path program 2 times [2023-11-29 04:26:27,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:27,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405111926] [2023-11-29 04:26:27,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:27,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:27,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:27,957 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 04:26:27,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:27,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405111926] [2023-11-29 04:26:27,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405111926] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:26:27,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266994045] [2023-11-29 04:26:27,958 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:26:27,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:27,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:27,959 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:27,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 04:26:28,080 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:26:28,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:26:28,082 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 04:26:28,084 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:28,144 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 04:26:28,144 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:28,313 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 04:26:28,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266994045] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:26:28,313 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:26:28,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2023-11-29 04:26:28,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674644899] [2023-11-29 04:26:28,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:28,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 04:26:28,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:28,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 04:26:28,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-11-29 04:26:28,336 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 218 [2023-11-29 04:26:28,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 191 transitions, 525 flow. Second operand has 23 states, 23 states have (on average 82.30434782608695) internal successors, (1893), 23 states have internal predecessors, (1893), 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) [2023-11-29 04:26:28,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:26:28,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 218 [2023-11-29 04:26:28,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:26:37,418 INFO L124 PetriNetUnfolderBase]: 41801/90623 cut-off events. [2023-11-29 04:26:37,418 INFO L125 PetriNetUnfolderBase]: For 1651/2505 co-relation queries the response was YES. [2023-11-29 04:26:37,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153139 conditions, 90623 events. 41801/90623 cut-off events. For 1651/2505 co-relation queries the response was YES. Maximal size of possible extension queue 2480. Compared 1045652 event pairs, 36680 based on Foata normal form. 3/78979 useless extension candidates. Maximal degree in co-relation 153002. Up to 60878 conditions per place. [2023-11-29 04:26:38,094 INFO L140 encePairwiseOnDemand]: 214/218 looper letters, 95 selfloop transitions, 21 changer transitions 0/197 dead transitions. [2023-11-29 04:26:38,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 197 transitions, 811 flow [2023-11-29 04:26:38,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 04:26:38,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-29 04:26:38,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1818 transitions. [2023-11-29 04:26:38,100 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39711664482306686 [2023-11-29 04:26:38,100 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1818 transitions. [2023-11-29 04:26:38,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1818 transitions. [2023-11-29 04:26:38,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:26:38,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1818 transitions. [2023-11-29 04:26:38,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 86.57142857142857) internal successors, (1818), 21 states have internal predecessors, (1818), 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) [2023-11-29 04:26:38,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 218.0) internal successors, (4796), 22 states have internal predecessors, (4796), 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) [2023-11-29 04:26:38,117 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 218.0) internal successors, (4796), 22 states have internal predecessors, (4796), 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) [2023-11-29 04:26:38,117 INFO L175 Difference]: Start difference. First operand has 202 places, 191 transitions, 525 flow. Second operand 21 states and 1818 transitions. [2023-11-29 04:26:38,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 197 transitions, 811 flow [2023-11-29 04:26:38,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 197 transitions, 801 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-11-29 04:26:38,126 INFO L231 Difference]: Finished difference. Result has 221 places, 197 transitions, 626 flow [2023-11-29 04:26:38,127 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=626, PETRI_PLACES=221, PETRI_TRANSITIONS=197} [2023-11-29 04:26:38,127 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, 48 predicate places. [2023-11-29 04:26:38,128 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 197 transitions, 626 flow [2023-11-29 04:26:38,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 82.30434782608695) internal successors, (1893), 23 states have internal predecessors, (1893), 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) [2023-11-29 04:26:38,129 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:26:38,129 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:38,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 04:26:38,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 04:26:38,331 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2023-11-29 04:26:38,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:38,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1676199740, now seen corresponding path program 3 times [2023-11-29 04:26:38,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:38,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362084438] [2023-11-29 04:26:38,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:38,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:38,432 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-29 04:26:38,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:38,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362084438] [2023-11-29 04:26:38,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362084438] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:26:38,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701608078] [2023-11-29 04:26:38,432 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:26:38,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:38,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:38,434 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:38,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 04:26:38,529 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 04:26:38,530 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:26:38,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:26:38,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:38,561 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-29 04:26:38,561 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:26:38,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701608078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:26:38,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:26:38,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-11-29 04:26:38,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611227416] [2023-11-29 04:26:38,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:26:38,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:26:38,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:38,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:26:38,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:26:38,565 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 218 [2023-11-29 04:26:38,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 197 transitions, 626 flow. Second operand has 5 states, 5 states have (on average 82.6) internal successors, (413), 5 states have internal predecessors, (413), 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) [2023-11-29 04:26:38,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:26:38,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 218 [2023-11-29 04:26:38,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:26:46,521 INFO L124 PetriNetUnfolderBase]: 42657/80690 cut-off events. [2023-11-29 04:26:46,521 INFO L125 PetriNetUnfolderBase]: For 1211/1211 co-relation queries the response was YES. [2023-11-29 04:26:46,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145369 conditions, 80690 events. 42657/80690 cut-off events. For 1211/1211 co-relation queries the response was YES. Maximal size of possible extension queue 2174. Compared 831278 event pairs, 2140 based on Foata normal form. 441/71873 useless extension candidates. Maximal degree in co-relation 145208. Up to 54782 conditions per place. [2023-11-29 04:26:46,996 INFO L140 encePairwiseOnDemand]: 213/218 looper letters, 196 selfloop transitions, 6 changer transitions 0/280 dead transitions. [2023-11-29 04:26:46,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 280 transitions, 1194 flow [2023-11-29 04:26:46,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:26:46,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 04:26:46,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 502 transitions. [2023-11-29 04:26:46,997 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5756880733944955 [2023-11-29 04:26:46,998 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 502 transitions. [2023-11-29 04:26:46,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 502 transitions. [2023-11-29 04:26:46,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:26:46,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 502 transitions. [2023-11-29 04:26:46,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 125.5) internal successors, (502), 4 states have internal predecessors, (502), 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) [2023-11-29 04:26:47,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 218.0) internal successors, (1090), 5 states have internal predecessors, (1090), 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) [2023-11-29 04:26:47,000 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 218.0) internal successors, (1090), 5 states have internal predecessors, (1090), 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) [2023-11-29 04:26:47,001 INFO L175 Difference]: Start difference. First operand has 221 places, 197 transitions, 626 flow. Second operand 4 states and 502 transitions. [2023-11-29 04:26:47,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 280 transitions, 1194 flow [2023-11-29 04:26:47,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 280 transitions, 1151 flow, removed 1 selfloop flow, removed 13 redundant places. [2023-11-29 04:26:47,014 INFO L231 Difference]: Finished difference. Result has 210 places, 196 transitions, 591 flow [2023-11-29 04:26:47,015 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=579, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=591, PETRI_PLACES=210, PETRI_TRANSITIONS=196} [2023-11-29 04:26:47,015 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, 37 predicate places. [2023-11-29 04:26:47,015 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 196 transitions, 591 flow [2023-11-29 04:26:47,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 82.6) internal successors, (413), 5 states have internal predecessors, (413), 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) [2023-11-29 04:26:47,016 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:26:47,016 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:47,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 04:26:47,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a965173-f2e5-4d1a-b35c-05406212c881/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:47,216 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2023-11-29 04:26:47,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:47,217 INFO L85 PathProgramCache]: Analyzing trace with hash 422585489, now seen corresponding path program 1 times [2023-11-29 04:26:47,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:47,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156186992] [2023-11-29 04:26:47,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:47,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:47,266 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-29 04:26:47,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:47,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156186992] [2023-11-29 04:26:47,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156186992] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:26:47,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:26:47,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:26:47,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295066278] [2023-11-29 04:26:47,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:26:47,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:26:47,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:47,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:26:47,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:26:47,271 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 218 [2023-11-29 04:26:47,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 196 transitions, 591 flow. Second operand has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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) [2023-11-29 04:26:47,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:26:47,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 218 [2023-11-29 04:26:47,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:26:55,238 INFO L124 PetriNetUnfolderBase]: 40053/77088 cut-off events. [2023-11-29 04:26:55,238 INFO L125 PetriNetUnfolderBase]: For 3512/3512 co-relation queries the response was YES. [2023-11-29 04:26:55,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139185 conditions, 77088 events. 40053/77088 cut-off events. For 3512/3512 co-relation queries the response was YES. Maximal size of possible extension queue 2135. Compared 805123 event pairs, 907 based on Foata normal form. 441/69282 useless extension candidates. Maximal degree in co-relation 139045. Up to 55406 conditions per place. [2023-11-29 04:26:55,682 INFO L140 encePairwiseOnDemand]: 213/218 looper letters, 195 selfloop transitions, 6 changer transitions 0/280 dead transitions. [2023-11-29 04:26:55,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 280 transitions, 1159 flow [2023-11-29 04:26:55,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:26:55,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 04:26:55,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 505 transitions. [2023-11-29 04:26:55,683 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5791284403669725 [2023-11-29 04:26:55,684 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 505 transitions. [2023-11-29 04:26:55,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 505 transitions. [2023-11-29 04:26:55,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:26:55,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 505 transitions. [2023-11-29 04:26:55,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 126.25) internal successors, (505), 4 states have internal predecessors, (505), 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) [2023-11-29 04:26:55,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 218.0) internal successors, (1090), 5 states have internal predecessors, (1090), 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) [2023-11-29 04:26:55,688 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 218.0) internal successors, (1090), 5 states have internal predecessors, (1090), 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) [2023-11-29 04:26:55,688 INFO L175 Difference]: Start difference. First operand has 210 places, 196 transitions, 591 flow. Second operand 4 states and 505 transitions. [2023-11-29 04:26:55,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 280 transitions, 1159 flow [2023-11-29 04:26:55,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 280 transitions, 1147 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 04:26:55,709 INFO L231 Difference]: Finished difference. Result has 210 places, 196 transitions, 595 flow [2023-11-29 04:26:55,709 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=595, PETRI_PLACES=210, PETRI_TRANSITIONS=196} [2023-11-29 04:26:55,710 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, 37 predicate places. [2023-11-29 04:26:55,710 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 196 transitions, 595 flow [2023-11-29 04:26:55,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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) [2023-11-29 04:26:55,710 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:26:55,710 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:55,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 04:26:55,711 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2023-11-29 04:26:55,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:55,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1574494957, now seen corresponding path program 1 times [2023-11-29 04:26:55,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:55,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120858005] [2023-11-29 04:26:55,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:55,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:55,884 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-29 04:26:55,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:55,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120858005] [2023-11-29 04:26:55,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120858005] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:26:55,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:26:55,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:26:55,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928214238] [2023-11-29 04:26:55,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:26:55,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:26:55,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:55,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:26:55,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:26:55,893 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 218 [2023-11-29 04:26:55,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 196 transitions, 595 flow. Second operand has 5 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 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) [2023-11-29 04:26:55,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:26:55,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 218 [2023-11-29 04:26:55,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:27:10,006 INFO L124 PetriNetUnfolderBase]: 69388/135618 cut-off events. [2023-11-29 04:27:10,006 INFO L125 PetriNetUnfolderBase]: For 9559/9559 co-relation queries the response was YES. [2023-11-29 04:27:10,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244242 conditions, 135618 events. 69388/135618 cut-off events. For 9559/9559 co-relation queries the response was YES. Maximal size of possible extension queue 3314. Compared 1505593 event pairs, 8608 based on Foata normal form. 1438/122072 useless extension candidates. Maximal degree in co-relation 244102. Up to 70282 conditions per place. [2023-11-29 04:27:11,054 INFO L140 encePairwiseOnDemand]: 204/218 looper letters, 419 selfloop transitions, 23 changer transitions 0/519 dead transitions. [2023-11-29 04:27:11,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 519 transitions, 2277 flow [2023-11-29 04:27:11,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:27:11,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-29 04:27:11,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 983 transitions. [2023-11-29 04:27:11,058 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6441677588466579 [2023-11-29 04:27:11,058 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 983 transitions. [2023-11-29 04:27:11,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 983 transitions. [2023-11-29 04:27:11,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:27:11,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 983 transitions. [2023-11-29 04:27:11,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 140.42857142857142) internal successors, (983), 7 states have internal predecessors, (983), 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) [2023-11-29 04:27:11,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 218.0) internal successors, (1744), 8 states have internal predecessors, (1744), 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) [2023-11-29 04:27:11,064 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 218.0) internal successors, (1744), 8 states have internal predecessors, (1744), 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) [2023-11-29 04:27:11,064 INFO L175 Difference]: Start difference. First operand has 210 places, 196 transitions, 595 flow. Second operand 7 states and 983 transitions. [2023-11-29 04:27:11,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 519 transitions, 2277 flow [2023-11-29 04:27:11,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 519 transitions, 2237 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 04:27:11,078 INFO L231 Difference]: Finished difference. Result has 220 places, 221 transitions, 765 flow [2023-11-29 04:27:11,078 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=587, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=765, PETRI_PLACES=220, PETRI_TRANSITIONS=221} [2023-11-29 04:27:11,079 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, 47 predicate places. [2023-11-29 04:27:11,079 INFO L495 AbstractCegarLoop]: Abstraction has has 220 places, 221 transitions, 765 flow [2023-11-29 04:27:11,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 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) [2023-11-29 04:27:11,080 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:27:11,080 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-29 04:27:11,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 04:27:11,080 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2023-11-29 04:27:11,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:11,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1917200294, now seen corresponding path program 1 times [2023-11-29 04:27:11,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:11,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233119879] [2023-11-29 04:27:11,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:11,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:27:11,105 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:27:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:27:11,131 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:27:11,131 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 04:27:11,132 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 35 remaining) [2023-11-29 04:27:11,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 35 remaining) [2023-11-29 04:27:11,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 35 remaining) [2023-11-29 04:27:11,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 35 remaining) [2023-11-29 04:27:11,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 35 remaining) [2023-11-29 04:27:11,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 35 remaining) [2023-11-29 04:27:11,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 35 remaining) [2023-11-29 04:27:11,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 35 remaining) [2023-11-29 04:27:11,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 35 remaining) [2023-11-29 04:27:11,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 35 remaining) [2023-11-29 04:27:11,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 35 remaining) [2023-11-29 04:27:11,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 35 remaining) [2023-11-29 04:27:11,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 35 remaining) [2023-11-29 04:27:11,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 35 remaining) [2023-11-29 04:27:11,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 35 remaining) [2023-11-29 04:27:11,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 35 remaining) [2023-11-29 04:27:11,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 35 remaining) [2023-11-29 04:27:11,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 35 remaining) [2023-11-29 04:27:11,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 35 remaining) [2023-11-29 04:27:11,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 35 remaining) [2023-11-29 04:27:11,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 35 remaining) [2023-11-29 04:27:11,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 35 remaining) [2023-11-29 04:27:11,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 35 remaining) [2023-11-29 04:27:11,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 35 remaining) [2023-11-29 04:27:11,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 35 remaining) [2023-11-29 04:27:11,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 35 remaining) [2023-11-29 04:27:11,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 35 remaining) [2023-11-29 04:27:11,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 35 remaining) [2023-11-29 04:27:11,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 35 remaining) [2023-11-29 04:27:11,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 35 remaining) [2023-11-29 04:27:11,138 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 35 remaining) [2023-11-29 04:27:11,138 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 35 remaining) [2023-11-29 04:27:11,138 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 35 remaining) [2023-11-29 04:27:11,138 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 35 remaining) [2023-11-29 04:27:11,138 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 35 remaining) [2023-11-29 04:27:11,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 04:27:11,138 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1] [2023-11-29 04:27:11,139 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 04:27:11,139 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-29 04:27:11,184 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-29 04:27:11,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 214 places, 270 transitions, 567 flow [2023-11-29 04:27:11,256 INFO L124 PetriNetUnfolderBase]: 137/615 cut-off events. [2023-11-29 04:27:11,257 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-29 04:27:11,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 640 conditions, 615 events. 137/615 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3627 event pairs, 1 based on Foata normal form. 0/394 useless extension candidates. Maximal degree in co-relation 438. Up to 16 conditions per place. [2023-11-29 04:27:11,260 INFO L82 GeneralOperation]: Start removeDead. Operand has 214 places, 270 transitions, 567 flow [2023-11-29 04:27:11,267 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 214 places, 270 transitions, 567 flow [2023-11-29 04:27:11,268 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:27:11,269 INFO L357 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, mHoare=true, 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;@966361b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:27:11,269 INFO L358 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2023-11-29 04:27:11,269 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 04:27:11,270 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-11-29 04:27:11,270 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 04:27:11,270 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:27:11,270 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-29 04:27:11,270 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-29 04:27:11,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:11,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1326286, now seen corresponding path program 1 times [2023-11-29 04:27:11,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:11,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086229477] [2023-11-29 04:27:11,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:11,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:11,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:27:11,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:11,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086229477] [2023-11-29 04:27:11,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086229477] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:27:11,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:27:11,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:27:11,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209141692] [2023-11-29 04:27:11,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:27:11,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:27:11,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:11,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:27:11,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:27:11,298 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 270 [2023-11-29 04:27:11,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 270 transitions, 567 flow. Second operand has 4 states, 4 states have (on average 100.75) internal successors, (403), 4 states have internal predecessors, (403), 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) [2023-11-29 04:27:11,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:27:11,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 270 [2023-11-29 04:27:11,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand