./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd --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 53e3b4cf7a6885129025777f14c3b33a959debd694827832fbe127376cb0a5f9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:22:18,573 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:22:18,638 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 15:22:18,644 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:22:18,644 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:22:18,671 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:22:18,671 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:22:18,672 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:22:18,672 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:22:18,672 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:22:18,673 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:22:18,673 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:22:18,673 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:22:18,673 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:22:18,674 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:22:18,674 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:22:18,674 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:22:18,674 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:22:18,674 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:22:18,674 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:22:18,674 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:22:18,674 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:22:18,675 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:22:18,675 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:22:18,675 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:22:18,675 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 15:22:18,675 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:22:18,675 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:22:18,675 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:22:18,675 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:22:18,675 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:22:18,676 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:22:18,676 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:22:18,676 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:22:18,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:22:18,676 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:22:18,676 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:22:18,676 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:22:18,676 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:22:18,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:22:18,676 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:22:18,677 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:22:18,677 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:22:18,677 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:22:18,678 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd 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 -> 53e3b4cf7a6885129025777f14c3b33a959debd694827832fbe127376cb0a5f9 [2024-11-13 15:22:19,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:22:19,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:22:19,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:22:19,024 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:22:19,025 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:22:19,028 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i Unable to find full path for "g++" [2024-11-13 15:22:21,052 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:22:21,446 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:22:21,450 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i [2024-11-13 15:22:21,479 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/data/cdd456d9b/8c73e9638922489dad1133608b40aa95/FLAG41a5b4f62 [2024-11-13 15:22:21,494 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/data/cdd456d9b/8c73e9638922489dad1133608b40aa95 [2024-11-13 15:22:21,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:22:21,498 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:22:21,500 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:22:21,500 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:22:21,505 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:22:21,506 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:22:21" (1/1) ... [2024-11-13 15:22:21,507 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d990e89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:21, skipping insertion in model container [2024-11-13 15:22:21,507 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:22:21" (1/1) ... [2024-11-13 15:22:21,552 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:22:22,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:22:22,312 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:22:22,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:22:22,442 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:22:22,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:22 WrapperNode [2024-11-13 15:22:22,444 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:22:22,445 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:22:22,445 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:22:22,445 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:22:22,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:22" (1/1) ... [2024-11-13 15:22:22,480 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:22" (1/1) ... [2024-11-13 15:22:22,516 INFO L138 Inliner]: procedures = 274, calls = 143, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 315 [2024-11-13 15:22:22,517 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:22:22,517 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:22:22,518 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:22:22,518 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:22:22,528 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:22" (1/1) ... [2024-11-13 15:22:22,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:22" (1/1) ... [2024-11-13 15:22:22,536 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:22" (1/1) ... [2024-11-13 15:22:22,555 INFO L175 MemorySlicer]: Split 112 memory accesses to 4 slices as follows [100, 2, 8, 2]. 89 percent of accesses are in the largest equivalence class. The 100 initializations are split as follows [90, 2, 8, 0]. The 5 writes are split as follows [4, 0, 0, 1]. [2024-11-13 15:22:22,556 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:22" (1/1) ... [2024-11-13 15:22:22,556 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:22" (1/1) ... [2024-11-13 15:22:22,571 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:22" (1/1) ... [2024-11-13 15:22:22,577 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:22" (1/1) ... [2024-11-13 15:22:22,580 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:22" (1/1) ... [2024-11-13 15:22:22,582 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:22" (1/1) ... [2024-11-13 15:22:22,587 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:22:22,588 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:22:22,588 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:22:22,589 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:22:22,590 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:22" (1/1) ... [2024-11-13 15:22:22,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:22:22,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:22:22,643 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:22:22,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:22:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 15:22:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 15:22:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-13 15:22:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-13 15:22:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-13 15:22:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-13 15:22:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 15:22:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 15:22:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 15:22:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 15:22:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-13 15:22:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 15:22:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 15:22:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 15:22:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-13 15:22:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 15:22:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:22:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 15:22:22,688 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 15:22:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:22:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 15:22:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 15:22:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 15:22:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:22:22,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:22:22,692 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 15:22:22,905 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:22:22,907 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:22:23,759 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 15:22:23,759 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:22:24,937 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:22:24,938 INFO L316 CfgBuilder]: Removed 23 assume(true) statements. [2024-11-13 15:22:24,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:22:24 BoogieIcfgContainer [2024-11-13 15:22:24,938 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:22:24,944 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:22:24,944 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:22:24,978 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:22:24,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:22:21" (1/3) ... [2024-11-13 15:22:24,979 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec3fe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:22:24, skipping insertion in model container [2024-11-13 15:22:24,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:22" (2/3) ... [2024-11-13 15:22:24,979 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec3fe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:22:24, skipping insertion in model container [2024-11-13 15:22:24,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:22:24" (3/3) ... [2024-11-13 15:22:24,981 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_76-tricky_address3_racefree.i [2024-11-13 15:22:25,000 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:22:25,003 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_76-tricky_address3_racefree.i that has 2 procedures, 91 locations, 1 initial locations, 13 loop locations, and 16 error locations. [2024-11-13 15:22:25,003 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 15:22:25,091 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-13 15:22:25,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 115 transitions, 237 flow [2024-11-13 15:22:25,261 INFO L124 PetriNetUnfolderBase]: 35/162 cut-off events. [2024-11-13 15:22:25,265 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 15:22:25,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 162 events. 35/162 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 639 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 100. Up to 8 conditions per place. [2024-11-13 15:22:25,275 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 115 transitions, 237 flow [2024-11-13 15:22:25,283 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 114 transitions, 235 flow [2024-11-13 15:22:25,296 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:22:25,322 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1662d191, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:22:25,322 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-13 15:22:25,338 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:22:25,340 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-13 15:22:25,340 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:22:25,340 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:25,341 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-13 15:22:25,341 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 15:22:25,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:25,348 INFO L85 PathProgramCache]: Analyzing trace with hash 828485, now seen corresponding path program 1 times [2024-11-13 15:22:25,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:25,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985876321] [2024-11-13 15:22:25,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:25,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:25,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:22:25,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:25,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985876321] [2024-11-13 15:22:25,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985876321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:22:25,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:22:25,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:22:25,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396985676] [2024-11-13 15:22:25,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:22:25,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:22:25,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:25,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:22:25,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:22:25,977 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115 [2024-11-13 15:22:25,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 114 transitions, 235 flow. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:22:25,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:22:25,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115 [2024-11-13 15:22:25,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:26,695 INFO L124 PetriNetUnfolderBase]: 486/1500 cut-off events. [2024-11-13 15:22:26,695 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 15:22:26,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2481 conditions, 1500 events. 486/1500 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 10094 event pairs, 440 based on Foata normal form. 281/1596 useless extension candidates. Maximal degree in co-relation 2390. Up to 974 conditions per place. [2024-11-13 15:22:26,716 INFO L140 encePairwiseOnDemand]: 89/115 looper letters, 49 selfloop transitions, 3 changer transitions 0/96 dead transitions. [2024-11-13 15:22:26,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 96 transitions, 303 flow [2024-11-13 15:22:26,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:22:26,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:22:26,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2024-11-13 15:22:26,737 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5456521739130434 [2024-11-13 15:22:26,740 INFO L175 Difference]: Start difference. First operand has 94 places, 114 transitions, 235 flow. Second operand 4 states and 251 transitions. [2024-11-13 15:22:26,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 96 transitions, 303 flow [2024-11-13 15:22:26,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 96 transitions, 303 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:22:26,754 INFO L231 Difference]: Finished difference. Result has 99 places, 96 transitions, 219 flow [2024-11-13 15:22:26,757 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=219, PETRI_PLACES=99, PETRI_TRANSITIONS=96} [2024-11-13 15:22:26,762 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 5 predicate places. [2024-11-13 15:22:26,762 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 96 transitions, 219 flow [2024-11-13 15:22:26,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:22:26,763 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:26,763 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-13 15:22:26,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:22:26,763 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 15:22:26,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:26,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1087549826, now seen corresponding path program 1 times [2024-11-13 15:22:26,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:26,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928415797] [2024-11-13 15:22:26,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:26,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:27,059 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:22:27,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:27,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928415797] [2024-11-13 15:22:27,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928415797] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:22:27,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45907744] [2024-11-13 15:22:27,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:27,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:22:27,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:22:27,064 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:22:27,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:22:27,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:27,247 INFO L255 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:22:27,251 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:22:27,312 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:22:27,313 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:22:27,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45907744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:22:27,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:22:27,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-13 15:22:27,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292212915] [2024-11-13 15:22:27,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:22:27,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:22:27,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:27,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:22:27,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:22:27,335 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115 [2024-11-13 15:22:27,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 96 transitions, 219 flow. Second operand has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:22:27,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:22:27,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115 [2024-11-13 15:22:27,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:27,950 INFO L124 PetriNetUnfolderBase]: 486/1499 cut-off events. [2024-11-13 15:22:27,950 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-13 15:22:27,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2491 conditions, 1499 events. 486/1499 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 10095 event pairs, 440 based on Foata normal form. 1/1315 useless extension candidates. Maximal degree in co-relation 2473. Up to 969 conditions per place. [2024-11-13 15:22:27,965 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 45 selfloop transitions, 6 changer transitions 0/95 dead transitions. [2024-11-13 15:22:27,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 95 transitions, 317 flow [2024-11-13 15:22:27,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:22:27,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:22:27,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 316 transitions. [2024-11-13 15:22:27,974 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4579710144927536 [2024-11-13 15:22:27,974 INFO L175 Difference]: Start difference. First operand has 99 places, 96 transitions, 219 flow. Second operand 6 states and 316 transitions. [2024-11-13 15:22:27,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 95 transitions, 317 flow [2024-11-13 15:22:27,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 95 transitions, 315 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:22:27,981 INFO L231 Difference]: Finished difference. Result has 102 places, 95 transitions, 225 flow [2024-11-13 15:22:27,982 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=225, PETRI_PLACES=102, PETRI_TRANSITIONS=95} [2024-11-13 15:22:27,984 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 8 predicate places. [2024-11-13 15:22:27,984 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 95 transitions, 225 flow [2024-11-13 15:22:27,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:22:27,985 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:27,985 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-13 15:22:28,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 15:22:28,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:22:28,186 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 15:22:28,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:28,187 INFO L85 PathProgramCache]: Analyzing trace with hash 645694626, now seen corresponding path program 1 times [2024-11-13 15:22:28,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:28,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126202892] [2024-11-13 15:22:28,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:28,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:28,285 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 15:22:28,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:28,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126202892] [2024-11-13 15:22:28,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126202892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:22:28,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:22:28,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:22:28,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830989900] [2024-11-13 15:22:28,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:22:28,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:22:28,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:28,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:22:28,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:22:28,297 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115 [2024-11-13 15:22:28,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 95 transitions, 225 flow. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:22:28,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:22:28,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115 [2024-11-13 15:22:28,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:28,709 INFO L124 PetriNetUnfolderBase]: 486/1498 cut-off events. [2024-11-13 15:22:28,709 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-13 15:22:28,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2493 conditions, 1498 events. 486/1498 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 10105 event pairs, 440 based on Foata normal form. 1/1315 useless extension candidates. Maximal degree in co-relation 2469. Up to 972 conditions per place. [2024-11-13 15:22:28,719 INFO L140 encePairwiseOnDemand]: 112/115 looper letters, 46 selfloop transitions, 4 changer transitions 0/94 dead transitions. [2024-11-13 15:22:28,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 94 transitions, 321 flow [2024-11-13 15:22:28,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:22:28,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:22:28,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2024-11-13 15:22:28,722 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5246376811594203 [2024-11-13 15:22:28,722 INFO L175 Difference]: Start difference. First operand has 102 places, 95 transitions, 225 flow. Second operand 3 states and 181 transitions. [2024-11-13 15:22:28,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 94 transitions, 321 flow [2024-11-13 15:22:28,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 94 transitions, 299 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-13 15:22:28,729 INFO L231 Difference]: Finished difference. Result has 97 places, 94 transitions, 207 flow [2024-11-13 15:22:28,730 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=207, PETRI_PLACES=97, PETRI_TRANSITIONS=94} [2024-11-13 15:22:28,730 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 3 predicate places. [2024-11-13 15:22:28,731 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 94 transitions, 207 flow [2024-11-13 15:22:28,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:22:28,731 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:28,731 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:22:28,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:22:28,731 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 15:22:28,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:28,732 INFO L85 PathProgramCache]: Analyzing trace with hash 2035529006, now seen corresponding path program 1 times [2024-11-13 15:22:28,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:28,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891704907] [2024-11-13 15:22:28,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:28,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:28,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:28,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:22:28,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:28,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891704907] [2024-11-13 15:22:28,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891704907] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:22:28,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742826249] [2024-11-13 15:22:28,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:28,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:22:28,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:22:28,940 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:22:28,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:22:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:29,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:22:29,122 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:22:29,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:22:29,155 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:22:29,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:22:29,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742826249] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:22:29,212 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:22:29,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-13 15:22:29,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407530072] [2024-11-13 15:22:29,213 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:22:29,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 15:22:29,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:29,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 15:22:29,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:22:29,239 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115 [2024-11-13 15:22:29,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 94 transitions, 207 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:22:29,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:22:29,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115 [2024-11-13 15:22:29,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:29,816 INFO L124 PetriNetUnfolderBase]: 486/1502 cut-off events. [2024-11-13 15:22:29,816 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-13 15:22:29,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2496 conditions, 1502 events. 486/1502 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 10127 event pairs, 440 based on Foata normal form. 2/1321 useless extension candidates. Maximal degree in co-relation 2462. Up to 970 conditions per place. [2024-11-13 15:22:29,827 INFO L140 encePairwiseOnDemand]: 111/115 looper letters, 46 selfloop transitions, 7 changer transitions 0/97 dead transitions. [2024-11-13 15:22:29,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 97 transitions, 328 flow [2024-11-13 15:22:29,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:22:29,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-13 15:22:29,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 363 transitions. [2024-11-13 15:22:29,830 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4509316770186335 [2024-11-13 15:22:29,830 INFO L175 Difference]: Start difference. First operand has 97 places, 94 transitions, 207 flow. Second operand 7 states and 363 transitions. [2024-11-13 15:22:29,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 97 transitions, 328 flow [2024-11-13 15:22:29,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 97 transitions, 314 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:22:29,834 INFO L231 Difference]: Finished difference. Result has 103 places, 97 transitions, 233 flow [2024-11-13 15:22:29,834 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=233, PETRI_PLACES=103, PETRI_TRANSITIONS=97} [2024-11-13 15:22:29,835 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 9 predicate places. [2024-11-13 15:22:29,835 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 97 transitions, 233 flow [2024-11-13 15:22:29,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:22:29,836 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:29,836 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2024-11-13 15:22:29,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 15:22:30,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:22:30,041 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 15:22:30,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:30,042 INFO L85 PathProgramCache]: Analyzing trace with hash 2036913806, now seen corresponding path program 2 times [2024-11-13 15:22:30,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:30,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241187084] [2024-11-13 15:22:30,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:30,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:30,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:30,288 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:22:30,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:30,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241187084] [2024-11-13 15:22:30,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241187084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:22:30,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:22:30,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:22:30,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132983314] [2024-11-13 15:22:30,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:22:30,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:22:30,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:30,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:22:30,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:22:30,305 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 115 [2024-11-13 15:22:30,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 97 transitions, 233 flow. Second operand has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:22:30,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:22:30,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 115 [2024-11-13 15:22:30,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:30,797 INFO L124 PetriNetUnfolderBase]: 483/1378 cut-off events. [2024-11-13 15:22:30,797 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-13 15:22:30,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2378 conditions, 1378 events. 483/1378 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 9164 event pairs, 0 based on Foata normal form. 21/1266 useless extension candidates. Maximal degree in co-relation 2339. Up to 912 conditions per place. [2024-11-13 15:22:30,806 INFO L140 encePairwiseOnDemand]: 109/115 looper letters, 92 selfloop transitions, 3 changer transitions 0/136 dead transitions. [2024-11-13 15:22:30,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 136 transitions, 501 flow [2024-11-13 15:22:30,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:22:30,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:22:30,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 265 transitions. [2024-11-13 15:22:30,809 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5760869565217391 [2024-11-13 15:22:30,809 INFO L175 Difference]: Start difference. First operand has 103 places, 97 transitions, 233 flow. Second operand 4 states and 265 transitions. [2024-11-13 15:22:30,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 136 transitions, 501 flow [2024-11-13 15:22:30,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 136 transitions, 497 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:22:30,818 INFO L231 Difference]: Finished difference. Result has 103 places, 95 transitions, 235 flow [2024-11-13 15:22:30,822 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=235, PETRI_PLACES=103, PETRI_TRANSITIONS=95} [2024-11-13 15:22:30,823 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 9 predicate places. [2024-11-13 15:22:30,823 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 95 transitions, 235 flow [2024-11-13 15:22:30,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:22:30,823 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:30,823 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:22:30,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:22:30,824 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 15:22:30,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:30,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1029692433, now seen corresponding path program 1 times [2024-11-13 15:22:30,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:30,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977421884] [2024-11-13 15:22:30,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:30,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:30,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:31,002 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:22:31,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:31,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977421884] [2024-11-13 15:22:31,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977421884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:22:31,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:22:31,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:22:31,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516126982] [2024-11-13 15:22:31,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:22:31,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:22:31,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:31,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:22:31,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:22:31,018 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115 [2024-11-13 15:22:31,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 95 transitions, 235 flow. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:22:31,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:22:31,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115 [2024-11-13 15:22:31,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:31,507 INFO L124 PetriNetUnfolderBase]: 506/1511 cut-off events. [2024-11-13 15:22:31,507 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-11-13 15:22:31,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2581 conditions, 1511 events. 506/1511 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 10147 event pairs, 378 based on Foata normal form. 23/1365 useless extension candidates. Maximal degree in co-relation 2542. Up to 875 conditions per place. [2024-11-13 15:22:31,517 INFO L140 encePairwiseOnDemand]: 111/115 looper letters, 95 selfloop transitions, 3 changer transitions 0/138 dead transitions. [2024-11-13 15:22:31,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 138 transitions, 525 flow [2024-11-13 15:22:31,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:22:31,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:22:31,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 270 transitions. [2024-11-13 15:22:31,519 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5869565217391305 [2024-11-13 15:22:31,519 INFO L175 Difference]: Start difference. First operand has 103 places, 95 transitions, 235 flow. Second operand 4 states and 270 transitions. [2024-11-13 15:22:31,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 138 transitions, 525 flow [2024-11-13 15:22:31,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 138 transitions, 515 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-13 15:22:31,524 INFO L231 Difference]: Finished difference. Result has 102 places, 94 transitions, 233 flow [2024-11-13 15:22:31,524 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=233, PETRI_PLACES=102, PETRI_TRANSITIONS=94} [2024-11-13 15:22:31,525 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 8 predicate places. [2024-11-13 15:22:31,525 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 94 transitions, 233 flow [2024-11-13 15:22:31,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:22:31,525 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:31,525 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:22:31,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:22:31,526 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 15:22:31,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:31,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1892853885, now seen corresponding path program 1 times [2024-11-13 15:22:31,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:31,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921012005] [2024-11-13 15:22:31,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:31,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:31,775 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 15:22:31,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:31,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921012005] [2024-11-13 15:22:31,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921012005] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:22:31,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733488875] [2024-11-13 15:22:31,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:31,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:22:31,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:22:31,779 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:22:31,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 15:22:31,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:31,961 INFO L255 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 15:22:31,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:22:32,025 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 15:22:32,025 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:22:32,181 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 15:22:32,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733488875] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:22:32,181 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:22:32,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-13 15:22:32,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850251488] [2024-11-13 15:22:32,182 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:22:32,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-13 15:22:32,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:32,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-13 15:22:32,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-13 15:22:32,209 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115 [2024-11-13 15:22:32,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 94 transitions, 233 flow. Second operand has 18 states, 18 states have (on average 45.22222222222222) internal successors, (814), 18 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:22:32,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:22:32,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115 [2024-11-13 15:22:32,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:32,786 INFO L124 PetriNetUnfolderBase]: 485/1486 cut-off events. [2024-11-13 15:22:32,786 INFO L125 PetriNetUnfolderBase]: For 115/115 co-relation queries the response was YES. [2024-11-13 15:22:32,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2578 conditions, 1486 events. 485/1486 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 9841 event pairs, 440 based on Foata normal form. 4/1340 useless extension candidates. Maximal degree in co-relation 2503. Up to 946 conditions per place. [2024-11-13 15:22:32,795 INFO L140 encePairwiseOnDemand]: 111/115 looper letters, 46 selfloop transitions, 15 changer transitions 0/102 dead transitions. [2024-11-13 15:22:32,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 102 transitions, 403 flow [2024-11-13 15:22:32,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 15:22:32,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-13 15:22:32,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 725 transitions. [2024-11-13 15:22:32,799 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42028985507246375 [2024-11-13 15:22:32,800 INFO L175 Difference]: Start difference. First operand has 102 places, 94 transitions, 233 flow. Second operand 15 states and 725 transitions. [2024-11-13 15:22:32,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 102 transitions, 403 flow [2024-11-13 15:22:32,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 102 transitions, 397 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-13 15:22:32,829 INFO L231 Difference]: Finished difference. Result has 117 places, 102 transitions, 324 flow [2024-11-13 15:22:32,829 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=324, PETRI_PLACES=117, PETRI_TRANSITIONS=102} [2024-11-13 15:22:32,830 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 23 predicate places. [2024-11-13 15:22:32,830 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 102 transitions, 324 flow [2024-11-13 15:22:32,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 45.22222222222222) internal successors, (814), 18 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:22:32,832 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:32,832 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:22:32,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 15:22:33,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:22:33,033 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 15:22:33,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:33,034 INFO L85 PathProgramCache]: Analyzing trace with hash -2123385661, now seen corresponding path program 2 times [2024-11-13 15:22:33,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:33,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398593412] [2024-11-13 15:22:33,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:33,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:33,560 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 15:22:33,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:33,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398593412] [2024-11-13 15:22:33,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398593412] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:22:33,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638212929] [2024-11-13 15:22:33,561 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:22:33,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:22:33,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:22:33,563 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:22:33,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 15:22:33,742 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 15:22:33,742 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:22:33,745 INFO L255 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 15:22:33,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:22:33,844 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 15:22:33,845 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:22:34,141 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 15:22:34,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638212929] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:22:34,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:22:34,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-13 15:22:34,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405580703] [2024-11-13 15:22:34,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:22:34,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 15:22:34,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:34,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 15:22:34,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-13 15:22:34,174 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115 [2024-11-13 15:22:34,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 102 transitions, 324 flow. Second operand has 23 states, 23 states have (on average 45.21739130434783) internal successors, (1040), 23 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:22:34,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:22:34,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115 [2024-11-13 15:22:34,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:34,753 INFO L124 PetriNetUnfolderBase]: 485/1486 cut-off events. [2024-11-13 15:22:34,753 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2024-11-13 15:22:34,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2565 conditions, 1486 events. 485/1486 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 9748 event pairs, 440 based on Foata normal form. 3/1343 useless extension candidates. Maximal degree in co-relation 2430. Up to 947 conditions per place. [2024-11-13 15:22:34,761 INFO L140 encePairwiseOnDemand]: 111/115 looper letters, 46 selfloop transitions, 21 changer transitions 0/108 dead transitions. [2024-11-13 15:22:34,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 108 transitions, 512 flow [2024-11-13 15:22:34,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-13 15:22:34,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-13 15:22:34,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 994 transitions. [2024-11-13 15:22:34,766 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4115942028985507 [2024-11-13 15:22:34,766 INFO L175 Difference]: Start difference. First operand has 117 places, 102 transitions, 324 flow. Second operand 21 states and 994 transitions. [2024-11-13 15:22:34,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 108 transitions, 512 flow [2024-11-13 15:22:34,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 108 transitions, 502 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-13 15:22:34,771 INFO L231 Difference]: Finished difference. Result has 136 places, 108 transitions, 425 flow [2024-11-13 15:22:34,771 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=425, PETRI_PLACES=136, PETRI_TRANSITIONS=108} [2024-11-13 15:22:34,772 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 42 predicate places. [2024-11-13 15:22:34,774 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 108 transitions, 425 flow [2024-11-13 15:22:34,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 45.21739130434783) internal successors, (1040), 23 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:22:34,774 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:34,775 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:22:34,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-13 15:22:34,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-13 15:22:34,976 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 15:22:34,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:34,976 INFO L85 PathProgramCache]: Analyzing trace with hash -656510902, now seen corresponding path program 3 times [2024-11-13 15:22:34,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:34,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669252853] [2024-11-13 15:22:34,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:34,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:35,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:22:35,037 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:22:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:22:35,138 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:22:35,142 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:22:35,143 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-13 15:22:35,149 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 23 remaining) [2024-11-13 15:22:35,149 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 23 remaining) [2024-11-13 15:22:35,149 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 23 remaining) [2024-11-13 15:22:35,149 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 23 remaining) [2024-11-13 15:22:35,149 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 23 remaining) [2024-11-13 15:22:35,149 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 23 remaining) [2024-11-13 15:22:35,149 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 23 remaining) [2024-11-13 15:22:35,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 23 remaining) [2024-11-13 15:22:35,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 23 remaining) [2024-11-13 15:22:35,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 23 remaining) [2024-11-13 15:22:35,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 23 remaining) [2024-11-13 15:22:35,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 23 remaining) [2024-11-13 15:22:35,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 23 remaining) [2024-11-13 15:22:35,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 23 remaining) [2024-11-13 15:22:35,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 23 remaining) [2024-11-13 15:22:35,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 23 remaining) [2024-11-13 15:22:35,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 23 remaining) [2024-11-13 15:22:35,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 23 remaining) [2024-11-13 15:22:35,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 23 remaining) [2024-11-13 15:22:35,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 23 remaining) [2024-11-13 15:22:35,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 23 remaining) [2024-11-13 15:22:35,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 23 remaining) [2024-11-13 15:22:35,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 15:22:35,151 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1] [2024-11-13 15:22:35,154 WARN L247 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 15:22:35,154 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-13 15:22:35,186 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-13 15:22:35,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 165 transitions, 346 flow [2024-11-13 15:22:35,233 INFO L124 PetriNetUnfolderBase]: 59/278 cut-off events. [2024-11-13 15:22:35,234 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-13 15:22:35,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 278 events. 59/278 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1290 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 164. Up to 12 conditions per place. [2024-11-13 15:22:35,236 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 165 transitions, 346 flow [2024-11-13 15:22:35,238 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 165 transitions, 346 flow [2024-11-13 15:22:35,239 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:22:35,240 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1662d191, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:22:35,240 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-13 15:22:35,243 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:22:35,243 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-13 15:22:35,243 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:22:35,243 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:35,243 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-13 15:22:35,243 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-13 15:22:35,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:35,244 INFO L85 PathProgramCache]: Analyzing trace with hash 992330, now seen corresponding path program 1 times [2024-11-13 15:22:35,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:35,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922881681] [2024-11-13 15:22:35,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:35,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:35,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:35,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:22:35,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:35,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922881681] [2024-11-13 15:22:35,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922881681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:22:35,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:22:35,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:22:35,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220427247] [2024-11-13 15:22:35,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:22:35,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:22:35,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:35,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:22:35,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:22:35,313 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-11-13 15:22:35,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 165 transitions, 346 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) [2024-11-13 15:22:35,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:22:35,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-11-13 15:22:35,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:40,500 INFO L124 PetriNetUnfolderBase]: 20921/44082 cut-off events. [2024-11-13 15:22:40,500 INFO L125 PetriNetUnfolderBase]: For 124/124 co-relation queries the response was YES. [2024-11-13 15:22:40,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75381 conditions, 44082 events. 20921/44082 cut-off events. For 124/124 co-relation queries the response was YES. Maximal size of possible extension queue 1192. Compared 449962 event pairs, 19440 based on Foata normal form. 9270/48624 useless extension candidates. Maximal degree in co-relation 59170. Up to 31185 conditions per place. [2024-11-13 15:22:40,826 INFO L140 encePairwiseOnDemand]: 129/165 looper letters, 72 selfloop transitions, 3 changer transitions 0/137 dead transitions. [2024-11-13 15:22:40,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 137 transitions, 440 flow [2024-11-13 15:22:40,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:22:40,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:22:40,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 356 transitions. [2024-11-13 15:22:40,828 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5393939393939394 [2024-11-13 15:22:40,828 INFO L175 Difference]: Start difference. First operand has 134 places, 165 transitions, 346 flow. Second operand 4 states and 356 transitions. [2024-11-13 15:22:40,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 137 transitions, 440 flow [2024-11-13 15:22:40,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 137 transitions, 440 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:22:40,839 INFO L231 Difference]: Finished difference. Result has 139 places, 137 transitions, 310 flow [2024-11-13 15:22:40,839 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=134, 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=310, PETRI_PLACES=139, PETRI_TRANSITIONS=137} [2024-11-13 15:22:40,840 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 5 predicate places. [2024-11-13 15:22:40,840 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 137 transitions, 310 flow [2024-11-13 15:22:40,841 INFO L472 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) [2024-11-13 15:22:40,841 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:40,841 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-13 15:22:40,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 15:22:40,841 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-13 15:22:40,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:40,842 INFO L85 PathProgramCache]: Analyzing trace with hash -501246882, now seen corresponding path program 1 times [2024-11-13 15:22:40,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:40,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420042165] [2024-11-13 15:22:40,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:40,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:40,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:41,048 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:22:41,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:41,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420042165] [2024-11-13 15:22:41,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420042165] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:22:41,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215194715] [2024-11-13 15:22:41,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:41,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:22:41,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:22:41,052 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:22:41,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 15:22:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:41,209 INFO L255 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:22:41,210 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:22:41,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:22:41,250 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:22:41,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215194715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:22:41,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:22:41,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-13 15:22:41,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152589103] [2024-11-13 15:22:41,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:22:41,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:22:41,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:41,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:22:41,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:22:41,265 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-11-13 15:22:41,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 137 transitions, 310 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) [2024-11-13 15:22:41,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:22:41,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-11-13 15:22:41,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:45,472 INFO L124 PetriNetUnfolderBase]: 20921/44081 cut-off events. [2024-11-13 15:22:45,472 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2024-11-13 15:22:45,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75391 conditions, 44081 events. 20921/44081 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 1192. Compared 449849 event pairs, 19440 based on Foata normal form. 1/39354 useless extension candidates. Maximal degree in co-relation 75372. Up to 31180 conditions per place. [2024-11-13 15:22:45,689 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 68 selfloop transitions, 6 changer transitions 0/136 dead transitions. [2024-11-13 15:22:45,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 136 transitions, 454 flow [2024-11-13 15:22:45,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:22:45,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:22:45,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 447 transitions. [2024-11-13 15:22:45,692 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45151515151515154 [2024-11-13 15:22:45,692 INFO L175 Difference]: Start difference. First operand has 139 places, 137 transitions, 310 flow. Second operand 6 states and 447 transitions. [2024-11-13 15:22:45,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 136 transitions, 454 flow [2024-11-13 15:22:45,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 136 transitions, 452 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:22:45,696 INFO L231 Difference]: Finished difference. Result has 142 places, 136 transitions, 316 flow [2024-11-13 15:22:45,696 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=137, 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=316, PETRI_PLACES=142, PETRI_TRANSITIONS=136} [2024-11-13 15:22:45,697 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 8 predicate places. [2024-11-13 15:22:45,697 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 136 transitions, 316 flow [2024-11-13 15:22:45,697 INFO L472 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) [2024-11-13 15:22:45,698 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:45,698 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-13 15:22:45,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-13 15:22:45,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-13 15:22:45,903 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-13 15:22:45,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:45,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1641216871, now seen corresponding path program 1 times [2024-11-13 15:22:45,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:45,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752846320] [2024-11-13 15:22:45,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:45,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:45,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:45,978 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 15:22:45,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:45,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752846320] [2024-11-13 15:22:45,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752846320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:22:45,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:22:45,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:22:45,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190347767] [2024-11-13 15:22:45,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:22:45,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:22:45,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:45,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:22:45,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:22:45,987 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-11-13 15:22:45,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 136 transitions, 316 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) [2024-11-13 15:22:45,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:22:45,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-11-13 15:22:45,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:49,902 INFO L124 PetriNetUnfolderBase]: 20921/44080 cut-off events. [2024-11-13 15:22:49,902 INFO L125 PetriNetUnfolderBase]: For 131/131 co-relation queries the response was YES. [2024-11-13 15:22:49,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75393 conditions, 44080 events. 20921/44080 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 1192. Compared 449976 event pairs, 19440 based on Foata normal form. 1/39354 useless extension candidates. Maximal degree in co-relation 75368. Up to 31183 conditions per place. [2024-11-13 15:22:50,123 INFO L140 encePairwiseOnDemand]: 162/165 looper letters, 69 selfloop transitions, 4 changer transitions 0/135 dead transitions. [2024-11-13 15:22:50,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 135 transitions, 458 flow [2024-11-13 15:22:50,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:22:50,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:22:50,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2024-11-13 15:22:50,126 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5212121212121212 [2024-11-13 15:22:50,126 INFO L175 Difference]: Start difference. First operand has 142 places, 136 transitions, 316 flow. Second operand 3 states and 258 transitions. [2024-11-13 15:22:50,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 135 transitions, 458 flow [2024-11-13 15:22:50,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 135 transitions, 436 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-13 15:22:50,129 INFO L231 Difference]: Finished difference. Result has 137 places, 135 transitions, 298 flow [2024-11-13 15:22:50,129 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=135, 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=298, PETRI_PLACES=137, PETRI_TRANSITIONS=135} [2024-11-13 15:22:50,130 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 3 predicate places. [2024-11-13 15:22:50,130 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 135 transitions, 298 flow [2024-11-13 15:22:50,131 INFO L472 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) [2024-11-13 15:22:50,131 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:50,131 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:22:50,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 15:22:50,131 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-13 15:22:50,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:50,132 INFO L85 PathProgramCache]: Analyzing trace with hash 954750851, now seen corresponding path program 1 times [2024-11-13 15:22:50,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:50,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574094639] [2024-11-13 15:22:50,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:50,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:50,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:22:50,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:50,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574094639] [2024-11-13 15:22:50,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574094639] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:22:50,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72060031] [2024-11-13 15:22:50,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:50,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:22:50,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:22:50,247 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:22:50,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 15:22:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:50,416 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:22:50,417 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:22:50,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:22:50,445 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:22:50,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:22:50,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72060031] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:22:50,489 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:22:50,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-13 15:22:50,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399464932] [2024-11-13 15:22:50,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:22:50,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 15:22:50,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:50,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 15:22:50,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:22:50,508 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-11-13 15:22:50,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 135 transitions, 298 flow. Second operand has 10 states, 10 states have (on average 63.3) internal successors, (633), 10 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:22:50,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:22:50,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-11-13 15:22:50,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:54,670 INFO L124 PetriNetUnfolderBase]: 20921/44084 cut-off events. [2024-11-13 15:22:54,671 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2024-11-13 15:22:54,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75396 conditions, 44084 events. 20921/44084 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 1192. Compared 449980 event pairs, 19440 based on Foata normal form. 2/39360 useless extension candidates. Maximal degree in co-relation 75361. Up to 31181 conditions per place. [2024-11-13 15:22:54,819 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 69 selfloop transitions, 7 changer transitions 0/138 dead transitions. [2024-11-13 15:22:54,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 138 transitions, 465 flow [2024-11-13 15:22:54,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:22:54,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-13 15:22:54,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 512 transitions. [2024-11-13 15:22:54,822 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4432900432900433 [2024-11-13 15:22:54,823 INFO L175 Difference]: Start difference. First operand has 137 places, 135 transitions, 298 flow. Second operand 7 states and 512 transitions. [2024-11-13 15:22:54,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 138 transitions, 465 flow [2024-11-13 15:22:54,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 138 transitions, 451 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:22:54,827 INFO L231 Difference]: Finished difference. Result has 143 places, 138 transitions, 324 flow [2024-11-13 15:22:54,828 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=135, 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=324, PETRI_PLACES=143, PETRI_TRANSITIONS=138} [2024-11-13 15:22:54,831 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 9 predicate places. [2024-11-13 15:22:54,831 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 138 transitions, 324 flow [2024-11-13 15:22:54,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.3) internal successors, (633), 10 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:22:54,832 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:54,832 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2024-11-13 15:22:54,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 15:22:55,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-13 15:22:55,033 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-13 15:22:55,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:55,033 INFO L85 PathProgramCache]: Analyzing trace with hash -770978045, now seen corresponding path program 2 times [2024-11-13 15:22:55,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:55,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873816536] [2024-11-13 15:22:55,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:55,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:55,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:55,160 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:22:55,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:55,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873816536] [2024-11-13 15:22:55,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873816536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:22:55,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:22:55,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:22:55,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947375948] [2024-11-13 15:22:55,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:22:55,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:22:55,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:55,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:22:55,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:22:55,171 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 165 [2024-11-13 15:22:55,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 138 transitions, 324 flow. Second operand has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:22:55,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:22:55,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 165 [2024-11-13 15:22:55,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:59,143 INFO L124 PetriNetUnfolderBase]: 23016/46825 cut-off events. [2024-11-13 15:22:59,144 INFO L125 PetriNetUnfolderBase]: For 134/134 co-relation queries the response was YES. [2024-11-13 15:22:59,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81493 conditions, 46825 events. 23016/46825 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 1226. Compared 469792 event pairs, 10580 based on Foata normal form. 21/41770 useless extension candidates. Maximal degree in co-relation 81453. Up to 34473 conditions per place. [2024-11-13 15:22:59,302 INFO L140 encePairwiseOnDemand]: 159/165 looper letters, 119 selfloop transitions, 3 changer transitions 0/181 dead transitions. [2024-11-13 15:22:59,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 181 transitions, 654 flow [2024-11-13 15:22:59,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:22:59,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:22:59,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 364 transitions. [2024-11-13 15:22:59,303 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5515151515151515 [2024-11-13 15:22:59,303 INFO L175 Difference]: Start difference. First operand has 143 places, 138 transitions, 324 flow. Second operand 4 states and 364 transitions. [2024-11-13 15:22:59,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 181 transitions, 654 flow [2024-11-13 15:22:59,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 181 transitions, 650 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:22:59,307 INFO L231 Difference]: Finished difference. Result has 146 places, 140 transitions, 344 flow [2024-11-13 15:22:59,308 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=344, PETRI_PLACES=146, PETRI_TRANSITIONS=140} [2024-11-13 15:22:59,308 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 12 predicate places. [2024-11-13 15:22:59,309 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 140 transitions, 344 flow [2024-11-13 15:22:59,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:22:59,309 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:59,309 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:22:59,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 15:22:59,310 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-13 15:22:59,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:59,310 INFO L85 PathProgramCache]: Analyzing trace with hash 2120673220, now seen corresponding path program 1 times [2024-11-13 15:22:59,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:59,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36776744] [2024-11-13 15:22:59,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:59,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:59,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:59,404 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:22:59,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:59,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36776744] [2024-11-13 15:22:59,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36776744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:22:59,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:22:59,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:22:59,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520572310] [2024-11-13 15:22:59,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:22:59,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:22:59,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:59,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:22:59,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:22:59,413 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-11-13 15:22:59,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 140 transitions, 344 flow. Second operand has 4 states, 4 states have (on average 64.5) internal successors, (258), 4 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) [2024-11-13 15:22:59,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:22:59,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-11-13 15:22:59,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:23:03,615 INFO L124 PetriNetUnfolderBase]: 21407/40857 cut-off events. [2024-11-13 15:23:03,616 INFO L125 PetriNetUnfolderBase]: For 1134/2063 co-relation queries the response was YES. [2024-11-13 15:23:03,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74117 conditions, 40857 events. 21407/40857 cut-off events. For 1134/2063 co-relation queries the response was YES. Maximal size of possible extension queue 1118. Compared 395656 event pairs, 440 based on Foata normal form. 526/37645 useless extension candidates. Maximal degree in co-relation 74076. Up to 28198 conditions per place. [2024-11-13 15:23:03,771 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 167 selfloop transitions, 3 changer transitions 0/231 dead transitions. [2024-11-13 15:23:03,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 231 transitions, 896 flow [2024-11-13 15:23:03,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:23:03,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:23:03,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 411 transitions. [2024-11-13 15:23:03,773 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6227272727272727 [2024-11-13 15:23:03,773 INFO L175 Difference]: Start difference. First operand has 146 places, 140 transitions, 344 flow. Second operand 4 states and 411 transitions. [2024-11-13 15:23:03,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 231 transitions, 896 flow [2024-11-13 15:23:03,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 231 transitions, 892 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:23:03,778 INFO L231 Difference]: Finished difference. Result has 147 places, 139 transitions, 346 flow [2024-11-13 15:23:03,778 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=346, PETRI_PLACES=147, PETRI_TRANSITIONS=139} [2024-11-13 15:23:03,778 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 13 predicate places. [2024-11-13 15:23:03,779 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 139 transitions, 346 flow [2024-11-13 15:23:03,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.5) internal successors, (258), 4 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) [2024-11-13 15:23:03,779 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:23:03,779 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:23:03,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 15:23:03,779 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-13 15:23:03,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:23:03,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1316361443, now seen corresponding path program 1 times [2024-11-13 15:23:03,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:23:03,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071257165] [2024-11-13 15:23:03,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:23:03,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:23:03,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:23:03,871 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:23:03,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:23:03,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071257165] [2024-11-13 15:23:03,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071257165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:23:03,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:23:03,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:23:03,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003563059] [2024-11-13 15:23:03,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:23:03,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:23:03,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:23:03,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:23:03,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:23:03,880 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-11-13 15:23:03,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 139 transitions, 346 flow. Second operand has 4 states, 4 states have (on average 64.5) internal successors, (258), 4 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) [2024-11-13 15:23:03,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:23:03,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-11-13 15:23:03,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:23:08,574 INFO L124 PetriNetUnfolderBase]: 20844/43253 cut-off events. [2024-11-13 15:23:08,574 INFO L125 PetriNetUnfolderBase]: For 2073/2949 co-relation queries the response was YES. [2024-11-13 15:23:08,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77022 conditions, 43253 events. 20844/43253 cut-off events. For 2073/2949 co-relation queries the response was YES. Maximal size of possible extension queue 1138. Compared 437036 event pairs, 15754 based on Foata normal form. 525/39532 useless extension candidates. Maximal degree in co-relation 76981. Up to 26761 conditions per place. [2024-11-13 15:23:08,755 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 166 selfloop transitions, 3 changer transitions 0/230 dead transitions. [2024-11-13 15:23:08,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 230 transitions, 894 flow [2024-11-13 15:23:08,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:23:08,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:23:08,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 410 transitions. [2024-11-13 15:23:08,757 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6212121212121212 [2024-11-13 15:23:08,757 INFO L175 Difference]: Start difference. First operand has 147 places, 139 transitions, 346 flow. Second operand 4 states and 410 transitions. [2024-11-13 15:23:08,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 230 transitions, 894 flow [2024-11-13 15:23:08,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 230 transitions, 888 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-13 15:23:08,766 INFO L231 Difference]: Finished difference. Result has 146 places, 138 transitions, 344 flow [2024-11-13 15:23:08,766 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=344, PETRI_PLACES=146, PETRI_TRANSITIONS=138} [2024-11-13 15:23:08,767 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 12 predicate places. [2024-11-13 15:23:08,767 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 138 transitions, 344 flow [2024-11-13 15:23:08,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.5) internal successors, (258), 4 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) [2024-11-13 15:23:08,768 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:23:08,768 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:23:08,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 15:23:08,768 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-13 15:23:08,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:23:08,769 INFO L85 PathProgramCache]: Analyzing trace with hash 951604582, now seen corresponding path program 1 times [2024-11-13 15:23:08,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:23:08,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938389642] [2024-11-13 15:23:08,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:23:08,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:23:08,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:23:08,941 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:23:08,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:23:08,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938389642] [2024-11-13 15:23:08,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938389642] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:23:08,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447639212] [2024-11-13 15:23:08,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:23:08,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:23:08,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:23:08,945 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:23:08,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 15:23:09,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:23:09,119 INFO L255 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 15:23:09,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:23:09,157 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:23:09,158 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:23:09,268 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:23:09,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447639212] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:23:09,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:23:09,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-13 15:23:09,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898220690] [2024-11-13 15:23:09,269 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:23:09,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-13 15:23:09,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:23:09,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-13 15:23:09,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-13 15:23:09,295 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-11-13 15:23:09,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 138 transitions, 344 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) [2024-11-13 15:23:09,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:23:09,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-11-13 15:23:09,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:23:13,927 INFO L124 PetriNetUnfolderBase]: 20919/44308 cut-off events. [2024-11-13 15:23:13,927 INFO L125 PetriNetUnfolderBase]: For 2589/3459 co-relation queries the response was YES. [2024-11-13 15:23:14,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78137 conditions, 44308 events. 20919/44308 cut-off events. For 2589/3459 co-relation queries the response was YES. Maximal size of possible extension queue 1170. Compared 453349 event pairs, 19440 based on Foata normal form. 22/39995 useless extension candidates. Maximal degree in co-relation 78060. Up to 31203 conditions per place. [2024-11-13 15:23:14,387 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 70 selfloop transitions, 15 changer transitions 0/146 dead transitions. [2024-11-13 15:23:14,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 146 transitions, 562 flow [2024-11-13 15:23:14,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 15:23:14,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-13 15:23:14,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1018 transitions. [2024-11-13 15:23:14,390 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4113131313131313 [2024-11-13 15:23:14,390 INFO L175 Difference]: Start difference. First operand has 146 places, 138 transitions, 344 flow. Second operand 15 states and 1018 transitions. [2024-11-13 15:23:14,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 146 transitions, 562 flow [2024-11-13 15:23:14,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 146 transitions, 556 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-13 15:23:14,395 INFO L231 Difference]: Finished difference. Result has 161 places, 146 transitions, 435 flow [2024-11-13 15:23:14,396 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=435, PETRI_PLACES=161, PETRI_TRANSITIONS=146} [2024-11-13 15:23:14,396 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 27 predicate places. [2024-11-13 15:23:14,397 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 146 transitions, 435 flow [2024-11-13 15:23:14,397 INFO L472 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) [2024-11-13 15:23:14,397 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:23:14,398 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:23:14,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-13 15:23:14,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-13 15:23:14,598 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-13 15:23:14,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:23:14,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1833851290, now seen corresponding path program 2 times [2024-11-13 15:23:14,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:23:14,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308680800] [2024-11-13 15:23:14,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:23:14,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:23:14,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:23:15,019 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:23:15,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:23:15,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308680800] [2024-11-13 15:23:15,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308680800] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:23:15,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840599009] [2024-11-13 15:23:15,021 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:23:15,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:23:15,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:23:15,024 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:23:15,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 15:23:15,221 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 15:23:15,221 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:23:15,223 INFO L255 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 15:23:15,228 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:23:15,318 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:23:15,319 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:23:15,543 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:23:15,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840599009] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:23:15,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:23:15,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-13 15:23:15,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965208624] [2024-11-13 15:23:15,544 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:23:15,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 15:23:15,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:23:15,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 15:23:15,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-13 15:23:15,567 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-11-13 15:23:15,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 146 transitions, 435 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) [2024-11-13 15:23:15,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:23:15,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-11-13 15:23:15,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:23:20,798 INFO L124 PetriNetUnfolderBase]: 20919/44317 cut-off events. [2024-11-13 15:23:20,798 INFO L125 PetriNetUnfolderBase]: For 1163/2033 co-relation queries the response was YES. [2024-11-13 15:23:20,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76680 conditions, 44317 events. 20919/44317 cut-off events. For 1163/2033 co-relation queries the response was YES. Maximal size of possible extension queue 1170. Compared 453270 event pairs, 19440 based on Foata normal form. 21/40003 useless extension candidates. Maximal degree in co-relation 76543. Up to 31203 conditions per place. [2024-11-13 15:23:20,998 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 70 selfloop transitions, 21 changer transitions 0/152 dead transitions. [2024-11-13 15:23:20,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 152 transitions, 671 flow [2024-11-13 15:23:20,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-13 15:23:20,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-13 15:23:21,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1395 transitions. [2024-11-13 15:23:21,005 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4025974025974026 [2024-11-13 15:23:21,005 INFO L175 Difference]: Start difference. First operand has 161 places, 146 transitions, 435 flow. Second operand 21 states and 1395 transitions. [2024-11-13 15:23:21,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 152 transitions, 671 flow [2024-11-13 15:23:21,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 152 transitions, 661 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-13 15:23:21,013 INFO L231 Difference]: Finished difference. Result has 180 places, 152 transitions, 536 flow [2024-11-13 15:23:21,013 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=536, PETRI_PLACES=180, PETRI_TRANSITIONS=152} [2024-11-13 15:23:21,015 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 46 predicate places. [2024-11-13 15:23:21,015 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 152 transitions, 536 flow [2024-11-13 15:23:21,016 INFO L472 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) [2024-11-13 15:23:21,016 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:23:21,016 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:23:21,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 15:23:21,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-13 15:23:21,220 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-13 15:23:21,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:23:21,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1038726738, now seen corresponding path program 3 times [2024-11-13 15:23:21,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:23:21,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697351536] [2024-11-13 15:23:21,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:23:21,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:23:21,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:23:21,359 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-13 15:23:21,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:23:21,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697351536] [2024-11-13 15:23:21,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697351536] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:23:21,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758319665] [2024-11-13 15:23:21,360 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 15:23:21,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:23:21,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:23:21,362 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:23:21,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d2209c-e8b3-4f06-962b-46bb5c20484b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 15:23:21,552 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-13 15:23:21,553 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:23:21,555 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:23:21,556 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:23:21,609 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-13 15:23:21,609 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:23:21,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758319665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:23:21,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:23:21,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-13 15:23:21,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476990533] [2024-11-13 15:23:21,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:23:21,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:23:21,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:23:21,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:23:21,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:23:21,621 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 165 [2024-11-13 15:23:21,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 152 transitions, 536 flow. Second operand has 5 states, 5 states have (on average 62.6) internal successors, (313), 5 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:23:21,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:23:21,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 165 [2024-11-13 15:23:21,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand