./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.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_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/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_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/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_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/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 45d1947e02656e790dafd6ca03f6eadb14d0b370e2217b75740af9998d975bef --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:44:38,507 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:44:38,577 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 12:44:38,584 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:44:38,584 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:44:38,611 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:44:38,612 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:44:38,612 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:44:38,612 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 12:44:38,612 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 12:44:38,613 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:44:38,613 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:44:38,613 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:44:38,613 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:44:38,614 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:44:38,614 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:44:38,614 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 12:44:38,614 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 12:44:38,614 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:44:38,615 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 12:44:38,615 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:44:38,615 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 12:44:38,615 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:44:38,615 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 12:44:38,616 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:44:38,616 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 12:44:38,616 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 12:44:38,616 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 12:44:38,616 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 12:44:38,616 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:44:38,616 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:44:38,617 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:44:38,617 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 12:44:38,617 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:44:38,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:44:38,617 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:44:38,617 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:44:38,617 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 12:44:38,618 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 12:44:38,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 12:44:38,618 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:44:38,618 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 12:44:38,618 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 12:44:38,618 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 12:44:38,618 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_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/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 -> 45d1947e02656e790dafd6ca03f6eadb14d0b370e2217b75740af9998d975bef [2024-11-13 12:44:38,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:44:38,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:44:38,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:44:38,974 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:44:38,975 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:44:38,976 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i Unable to find full path for "g++" [2024-11-13 12:44:41,106 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:44:41,633 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:44:41,634 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i [2024-11-13 12:44:41,663 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/data/e1ea605f2/24ba87d457fb44368c8307e388e4c547/FLAGd3379ef00 [2024-11-13 12:44:41,690 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/data/e1ea605f2/24ba87d457fb44368c8307e388e4c547 [2024-11-13 12:44:41,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:44:41,696 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:44:41,698 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:44:41,698 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:44:41,707 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:44:41,708 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:44:41" (1/1) ... [2024-11-13 12:44:41,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d445cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:41, skipping insertion in model container [2024-11-13 12:44:41,712 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:44:41" (1/1) ... [2024-11-13 12:44:41,782 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:44:42,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:44:42,321 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:44:42,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:44:42,526 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:44:42,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:42 WrapperNode [2024-11-13 12:44:42,528 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:44:42,529 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:44:42,530 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:44:42,530 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:44:42,539 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:42" (1/1) ... [2024-11-13 12:44:42,572 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:42" (1/1) ... [2024-11-13 12:44:42,611 INFO L138 Inliner]: procedures = 274, calls = 42, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 156 [2024-11-13 12:44:42,615 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:44:42,616 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:44:42,616 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:44:42,616 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:44:42,633 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:42" (1/1) ... [2024-11-13 12:44:42,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:42" (1/1) ... [2024-11-13 12:44:42,642 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:42" (1/1) ... [2024-11-13 12:44:42,668 INFO L175 MemorySlicer]: Split 20 memory accesses to 4 slices as follows [2, 8, 8, 2]. 40 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 8, 8, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2024-11-13 12:44:42,668 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:42" (1/1) ... [2024-11-13 12:44:42,668 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:42" (1/1) ... [2024-11-13 12:44:42,689 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:42" (1/1) ... [2024-11-13 12:44:42,696 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:42" (1/1) ... [2024-11-13 12:44:42,702 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:42" (1/1) ... [2024-11-13 12:44:42,704 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:42" (1/1) ... [2024-11-13 12:44:42,711 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:44:42,717 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:44:42,717 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:44:42,717 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:44:42,718 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:42" (1/1) ... [2024-11-13 12:44:42,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:44:42,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:44:42,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 12:44:42,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 12:44:42,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 12:44:42,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 12:44:42,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-13 12:44:42,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-13 12:44:42,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-13 12:44:42,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-13 12:44:42,806 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 12:44:42,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 12:44:42,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 12:44:42,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 12:44:42,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-13 12:44:42,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 12:44:42,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 12:44:42,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 12:44:42,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-13 12:44:42,807 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 12:44:42,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 12:44:42,807 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 12:44:42,808 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 12:44:42,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 12:44:42,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 12:44:42,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 12:44:42,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 12:44:42,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:44:42,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:44:42,810 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 12:44:43,086 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:44:43,088 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 12:44:43,522 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 12:44:43,524 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 12:44:44,254 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 12:44:44,256 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-13 12:44:44,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:44:44 BoogieIcfgContainer [2024-11-13 12:44:44,257 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 12:44:44,260 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 12:44:44,262 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 12:44:44,267 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 12:44:44,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:44:41" (1/3) ... [2024-11-13 12:44:44,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@318d3cb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:44:44, skipping insertion in model container [2024-11-13 12:44:44,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:42" (2/3) ... [2024-11-13 12:44:44,269 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@318d3cb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:44:44, skipping insertion in model container [2024-11-13 12:44:44,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:44:44" (3/3) ... [2024-11-13 12:44:44,270 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_07-cond_racing2.i [2024-11-13 12:44:44,290 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 12:44:44,292 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_07-cond_racing2.i that has 2 procedures, 59 locations, 1 initial locations, 6 loop locations, and 10 error locations. [2024-11-13 12:44:44,292 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 12:44:44,368 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-13 12:44:44,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 71 transitions, 149 flow [2024-11-13 12:44:44,507 INFO L124 PetriNetUnfolderBase]: 17/97 cut-off events. [2024-11-13 12:44:44,512 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 12:44:44,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 97 events. 17/97 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 297 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 62. Up to 6 conditions per place. [2024-11-13 12:44:44,519 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 71 transitions, 149 flow [2024-11-13 12:44:44,526 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 70 transitions, 147 flow [2024-11-13 12:44:44,541 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 12:44:44,558 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;@24609604, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:44:44,562 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-13 12:44:44,577 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 12:44:44,578 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2024-11-13 12:44:44,578 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 12:44:44,579 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:44:44,579 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 12:44:44,580 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-13 12:44:44,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:44:44,586 INFO L85 PathProgramCache]: Analyzing trace with hash 486347653, now seen corresponding path program 1 times [2024-11-13 12:44:44,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:44:44,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924960206] [2024-11-13 12:44:44,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:44,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:44:44,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:45,118 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 12:44:45,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:44:45,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924960206] [2024-11-13 12:44:45,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924960206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:44:45,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:44:45,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:44:45,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158272289] [2024-11-13 12:44:45,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:44:45,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:44:45,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:44:45,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:44:45,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:44:45,239 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 71 [2024-11-13 12:44:45,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 70 transitions, 147 flow. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 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 12:44:45,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:44:45,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 71 [2024-11-13 12:44:45,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:44:45,607 INFO L124 PetriNetUnfolderBase]: 157/480 cut-off events. [2024-11-13 12:44:45,607 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 12:44:45,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 781 conditions, 480 events. 157/480 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2570 event pairs, 18 based on Foata normal form. 72/463 useless extension candidates. Maximal degree in co-relation 752. Up to 259 conditions per place. [2024-11-13 12:44:45,613 INFO L140 encePairwiseOnDemand]: 57/71 looper letters, 47 selfloop transitions, 3 changer transitions 0/83 dead transitions. [2024-11-13 12:44:45,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 83 transitions, 273 flow [2024-11-13 12:44:45,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:44:45,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 12:44:45,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 205 transitions. [2024-11-13 12:44:45,630 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.721830985915493 [2024-11-13 12:44:45,631 INFO L175 Difference]: Start difference. First operand has 62 places, 70 transitions, 147 flow. Second operand 4 states and 205 transitions. [2024-11-13 12:44:45,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 83 transitions, 273 flow [2024-11-13 12:44:45,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 83 transitions, 273 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 12:44:45,646 INFO L231 Difference]: Finished difference. Result has 64 places, 60 transitions, 137 flow [2024-11-13 12:44:45,649 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=137, PETRI_PLACES=64, PETRI_TRANSITIONS=60} [2024-11-13 12:44:45,654 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 2 predicate places. [2024-11-13 12:44:45,654 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 60 transitions, 137 flow [2024-11-13 12:44:45,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 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 12:44:45,655 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:44:45,655 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-13 12:44:45,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 12:44:45,655 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-13 12:44:45,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:44:45,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1858721235, now seen corresponding path program 1 times [2024-11-13 12:44:45,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:44:45,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707527548] [2024-11-13 12:44:45,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:45,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:44:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:44:45,760 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 12:44:45,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:44:45,847 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 12:44:45,848 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 12:44:45,849 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-11-13 12:44:45,851 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2024-11-13 12:44:45,852 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2024-11-13 12:44:45,852 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2024-11-13 12:44:45,852 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2024-11-13 12:44:45,852 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2024-11-13 12:44:45,852 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 15 remaining) [2024-11-13 12:44:45,852 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 15 remaining) [2024-11-13 12:44:45,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 15 remaining) [2024-11-13 12:44:45,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2024-11-13 12:44:45,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2024-11-13 12:44:45,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2024-11-13 12:44:45,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2024-11-13 12:44:45,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2024-11-13 12:44:45,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2024-11-13 12:44:45,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 12:44:45,854 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-13 12:44:45,857 WARN L247 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 12:44:45,857 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-13 12:44:45,899 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-13 12:44:45,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 104 transitions, 224 flow [2024-11-13 12:44:45,948 INFO L124 PetriNetUnfolderBase]: 30/175 cut-off events. [2024-11-13 12:44:45,948 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-13 12:44:45,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 175 events. 30/175 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 669 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 105. Up to 9 conditions per place. [2024-11-13 12:44:45,953 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 104 transitions, 224 flow [2024-11-13 12:44:45,955 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 104 transitions, 224 flow [2024-11-13 12:44:45,960 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 12:44:45,960 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;@24609604, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:44:45,960 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-11-13 12:44:45,970 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 12:44:45,970 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2024-11-13 12:44:45,970 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 12:44:45,970 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:44:45,970 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 12:44:45,971 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-13 12:44:45,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:44:45,971 INFO L85 PathProgramCache]: Analyzing trace with hash 585625164, now seen corresponding path program 1 times [2024-11-13 12:44:45,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:44:45,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978401027] [2024-11-13 12:44:45,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:45,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:44:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:46,239 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 12:44:46,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:44:46,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978401027] [2024-11-13 12:44:46,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978401027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:44:46,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:44:46,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:44:46,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465239744] [2024-11-13 12:44:46,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:44:46,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:44:46,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:44:46,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:44:46,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:44:46,254 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 104 [2024-11-13 12:44:46,254 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 104 transitions, 224 flow. Second operand has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 0 states have call successors, (0), 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 12:44:46,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:44:46,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 104 [2024-11-13 12:44:46,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:44:48,115 INFO L124 PetriNetUnfolderBase]: 4719/10013 cut-off events. [2024-11-13 12:44:48,115 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-11-13 12:44:48,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17194 conditions, 10013 events. 4719/10013 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 86022 event pairs, 1952 based on Foata normal form. 1711/10430 useless extension candidates. Maximal degree in co-relation 1373. Up to 7077 conditions per place. [2024-11-13 12:44:48,194 INFO L140 encePairwiseOnDemand]: 84/104 looper letters, 65 selfloop transitions, 3 changer transitions 0/115 dead transitions. [2024-11-13 12:44:48,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 115 transitions, 382 flow [2024-11-13 12:44:48,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:44:48,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 12:44:48,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 285 transitions. [2024-11-13 12:44:48,199 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6850961538461539 [2024-11-13 12:44:48,201 INFO L175 Difference]: Start difference. First operand has 90 places, 104 transitions, 224 flow. Second operand 4 states and 285 transitions. [2024-11-13 12:44:48,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 115 transitions, 382 flow [2024-11-13 12:44:48,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 115 transitions, 382 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 12:44:48,207 INFO L231 Difference]: Finished difference. Result has 95 places, 92 transitions, 220 flow [2024-11-13 12:44:48,208 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=220, PETRI_PLACES=95, PETRI_TRANSITIONS=92} [2024-11-13 12:44:48,210 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 5 predicate places. [2024-11-13 12:44:48,210 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 92 transitions, 220 flow [2024-11-13 12:44:48,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 0 states have call successors, (0), 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 12:44:48,210 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:44:48,211 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-13 12:44:48,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 12:44:48,211 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-13 12:44:48,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:44:48,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1509464230, now seen corresponding path program 1 times [2024-11-13 12:44:48,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:44:48,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23554107] [2024-11-13 12:44:48,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:48,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:44:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:48,492 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:44:48,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:44:48,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23554107] [2024-11-13 12:44:48,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23554107] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:44:48,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118605830] [2024-11-13 12:44:48,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:48,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:44:48,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:44:48,498 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:44:48,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 12:44:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:48,782 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 12:44:48,784 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:44:48,855 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:44:48,855 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:44:48,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118605830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:44:48,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:44:48,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-13 12:44:48,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666262755] [2024-11-13 12:44:48,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:44:48,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:44:48,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:44:48,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:44:48,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 12:44:48,870 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 104 [2024-11-13 12:44:48,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 92 transitions, 220 flow. Second operand has 6 states, 6 states have (on average 48.5) internal successors, (291), 6 states have internal predecessors, (291), 0 states have call successors, (0), 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 12:44:48,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:44:48,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 104 [2024-11-13 12:44:48,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:44:50,688 INFO L124 PetriNetUnfolderBase]: 3957/8829 cut-off events. [2024-11-13 12:44:50,688 INFO L125 PetriNetUnfolderBase]: For 648/648 co-relation queries the response was YES. [2024-11-13 12:44:50,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15420 conditions, 8829 events. 3957/8829 cut-off events. For 648/648 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 76560 event pairs, 252 based on Foata normal form. 144/7721 useless extension candidates. Maximal degree in co-relation 1279. Up to 3893 conditions per place. [2024-11-13 12:44:50,765 INFO L140 encePairwiseOnDemand]: 99/104 looper letters, 105 selfloop transitions, 6 changer transitions 0/158 dead transitions. [2024-11-13 12:44:50,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 158 transitions, 572 flow [2024-11-13 12:44:50,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:44:50,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 12:44:50,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 394 transitions. [2024-11-13 12:44:50,769 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6314102564102564 [2024-11-13 12:44:50,769 INFO L175 Difference]: Start difference. First operand has 95 places, 92 transitions, 220 flow. Second operand 6 states and 394 transitions. [2024-11-13 12:44:50,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 158 transitions, 572 flow [2024-11-13 12:44:50,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 158 transitions, 570 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 12:44:50,779 INFO L231 Difference]: Finished difference. Result has 98 places, 91 transitions, 226 flow [2024-11-13 12:44:50,780 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=226, PETRI_PLACES=98, PETRI_TRANSITIONS=91} [2024-11-13 12:44:50,781 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 8 predicate places. [2024-11-13 12:44:50,782 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 91 transitions, 226 flow [2024-11-13 12:44:50,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.5) internal successors, (291), 6 states have internal predecessors, (291), 0 states have call successors, (0), 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 12:44:50,783 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:44:50,783 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:44:50,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 12:44:50,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-13 12:44:50,984 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-13 12:44:50,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:44:50,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1509413351, now seen corresponding path program 1 times [2024-11-13 12:44:50,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:44:50,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536298459] [2024-11-13 12:44:50,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:50,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:44:51,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:51,115 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 12:44:51,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:44:51,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536298459] [2024-11-13 12:44:51,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536298459] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:44:51,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432830635] [2024-11-13 12:44:51,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:51,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:44:51,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:44:51,118 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:44:51,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 12:44:51,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:51,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 12:44:51,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:44:51,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 12:44:51,352 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:44:51,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432830635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:44:51,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:44:51,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2024-11-13 12:44:51,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786290161] [2024-11-13 12:44:51,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:44:51,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:44:51,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:44:51,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:44:51,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:44:51,380 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 104 [2024-11-13 12:44:51,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 91 transitions, 226 flow. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 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 12:44:51,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:44:51,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 104 [2024-11-13 12:44:51,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:44:52,631 INFO L124 PetriNetUnfolderBase]: 4413/9276 cut-off events. [2024-11-13 12:44:52,631 INFO L125 PetriNetUnfolderBase]: For 995/1132 co-relation queries the response was YES. [2024-11-13 12:44:52,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16767 conditions, 9276 events. 4413/9276 cut-off events. For 995/1132 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 76983 event pairs, 3755 based on Foata normal form. 156/8766 useless extension candidates. Maximal degree in co-relation 12948. Up to 6322 conditions per place. [2024-11-13 12:44:52,688 INFO L140 encePairwiseOnDemand]: 101/104 looper letters, 65 selfloop transitions, 2 changer transitions 0/112 dead transitions. [2024-11-13 12:44:52,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 112 transitions, 402 flow [2024-11-13 12:44:52,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:44:52,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 12:44:52,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 202 transitions. [2024-11-13 12:44:52,690 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6474358974358975 [2024-11-13 12:44:52,690 INFO L175 Difference]: Start difference. First operand has 98 places, 91 transitions, 226 flow. Second operand 3 states and 202 transitions. [2024-11-13 12:44:52,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 112 transitions, 402 flow [2024-11-13 12:44:52,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 112 transitions, 390 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-13 12:44:52,695 INFO L231 Difference]: Finished difference. Result has 95 places, 90 transitions, 216 flow [2024-11-13 12:44:52,695 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=95, PETRI_TRANSITIONS=90} [2024-11-13 12:44:52,696 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 5 predicate places. [2024-11-13 12:44:52,696 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 90 transitions, 216 flow [2024-11-13 12:44:52,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 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 12:44:52,696 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:44:52,696 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:44:52,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 12:44:52,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:44:52,897 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-13 12:44:52,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:44:52,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1658605788, now seen corresponding path program 1 times [2024-11-13 12:44:52,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:44:52,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506134845] [2024-11-13 12:44:52,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:52,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:44:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:53,049 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 12:44:53,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:44:53,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506134845] [2024-11-13 12:44:53,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506134845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:44:53,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:44:53,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:44:53,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145836707] [2024-11-13 12:44:53,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:44:53,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:44:53,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:44:53,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:44:53,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:44:53,062 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 104 [2024-11-13 12:44:53,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 90 transitions, 216 flow. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 0 states have call successors, (0), 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 12:44:53,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:44:53,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 104 [2024-11-13 12:44:53,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:44:54,967 INFO L124 PetriNetUnfolderBase]: 6297/12846 cut-off events. [2024-11-13 12:44:54,967 INFO L125 PetriNetUnfolderBase]: For 1314/1475 co-relation queries the response was YES. [2024-11-13 12:44:55,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23484 conditions, 12846 events. 6297/12846 cut-off events. For 1314/1475 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 111569 event pairs, 1495 based on Foata normal form. 222/12297 useless extension candidates. Maximal degree in co-relation 20334. Up to 6450 conditions per place. [2024-11-13 12:44:55,065 INFO L140 encePairwiseOnDemand]: 95/104 looper letters, 122 selfloop transitions, 12 changer transitions 0/181 dead transitions. [2024-11-13 12:44:55,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 181 transitions, 715 flow [2024-11-13 12:44:55,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:44:55,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 12:44:55,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 375 transitions. [2024-11-13 12:44:55,069 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7211538461538461 [2024-11-13 12:44:55,069 INFO L175 Difference]: Start difference. First operand has 95 places, 90 transitions, 216 flow. Second operand 5 states and 375 transitions. [2024-11-13 12:44:55,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 181 transitions, 715 flow [2024-11-13 12:44:55,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 181 transitions, 705 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 12:44:55,166 INFO L231 Difference]: Finished difference. Result has 101 places, 101 transitions, 306 flow [2024-11-13 12:44:55,167 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=306, PETRI_PLACES=101, PETRI_TRANSITIONS=101} [2024-11-13 12:44:55,168 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 11 predicate places. [2024-11-13 12:44:55,168 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 101 transitions, 306 flow [2024-11-13 12:44:55,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 0 states have call successors, (0), 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 12:44:55,168 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:44:55,168 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-13 12:44:55,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 12:44:55,172 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-13 12:44:55,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:44:55,173 INFO L85 PathProgramCache]: Analyzing trace with hash -451248540, now seen corresponding path program 1 times [2024-11-13 12:44:55,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:44:55,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249494448] [2024-11-13 12:44:55,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:55,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:44:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:55,334 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 12:44:55,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:44:55,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249494448] [2024-11-13 12:44:55,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249494448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:44:55,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:44:55,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:44:55,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427276596] [2024-11-13 12:44:55,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:44:55,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:44:55,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:44:55,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:44:55,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:44:55,350 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 104 [2024-11-13 12:44:55,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 101 transitions, 306 flow. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 0 states have call successors, (0), 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 12:44:55,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:44:55,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 104 [2024-11-13 12:44:55,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:44:57,085 INFO L124 PetriNetUnfolderBase]: 5573/11707 cut-off events. [2024-11-13 12:44:57,085 INFO L125 PetriNetUnfolderBase]: For 3889/3894 co-relation queries the response was YES. [2024-11-13 12:44:57,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23382 conditions, 11707 events. 5573/11707 cut-off events. For 3889/3894 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 100694 event pairs, 1085 based on Foata normal form. 160/10589 useless extension candidates. Maximal degree in co-relation 20081. Up to 7386 conditions per place. [2024-11-13 12:44:57,160 INFO L140 encePairwiseOnDemand]: 99/104 looper letters, 103 selfloop transitions, 6 changer transitions 0/155 dead transitions. [2024-11-13 12:44:57,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 155 transitions, 694 flow [2024-11-13 12:44:57,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:44:57,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 12:44:57,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 275 transitions. [2024-11-13 12:44:57,162 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6610576923076923 [2024-11-13 12:44:57,162 INFO L175 Difference]: Start difference. First operand has 101 places, 101 transitions, 306 flow. Second operand 4 states and 275 transitions. [2024-11-13 12:44:57,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 155 transitions, 694 flow [2024-11-13 12:44:57,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 155 transitions, 690 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-13 12:44:57,174 INFO L231 Difference]: Finished difference. Result has 103 places, 101 transitions, 318 flow [2024-11-13 12:44:57,175 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=318, PETRI_PLACES=103, PETRI_TRANSITIONS=101} [2024-11-13 12:44:57,176 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 13 predicate places. [2024-11-13 12:44:57,176 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 101 transitions, 318 flow [2024-11-13 12:44:57,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 0 states have call successors, (0), 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 12:44:57,176 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:44:57,178 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:44:57,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 12:44:57,179 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-13 12:44:57,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:44:57,179 INFO L85 PathProgramCache]: Analyzing trace with hash -452825728, now seen corresponding path program 1 times [2024-11-13 12:44:57,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:44:57,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059949883] [2024-11-13 12:44:57,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:57,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:44:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:57,328 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 12:44:57,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:44:57,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059949883] [2024-11-13 12:44:57,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059949883] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:44:57,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513448220] [2024-11-13 12:44:57,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:57,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:44:57,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:44:57,331 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:44:57,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 12:44:57,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:57,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 12:44:57,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:44:57,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 12:44:57,549 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:44:57,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513448220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:44:57,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:44:57,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2024-11-13 12:44:57,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604098115] [2024-11-13 12:44:57,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:44:57,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:44:57,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:44:57,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:44:57,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:44:57,573 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 104 [2024-11-13 12:44:57,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 101 transitions, 318 flow. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 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 12:44:57,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:44:57,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 104 [2024-11-13 12:44:57,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:44:59,740 INFO L124 PetriNetUnfolderBase]: 10678/21931 cut-off events. [2024-11-13 12:44:59,740 INFO L125 PetriNetUnfolderBase]: For 7264/7305 co-relation queries the response was YES. [2024-11-13 12:44:59,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44094 conditions, 21931 events. 10678/21931 cut-off events. For 7264/7305 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 205681 event pairs, 5129 based on Foata normal form. 177/20659 useless extension candidates. Maximal degree in co-relation 35577. Up to 9166 conditions per place. [2024-11-13 12:44:59,890 INFO L140 encePairwiseOnDemand]: 99/104 looper letters, 99 selfloop transitions, 4 changer transitions 0/147 dead transitions. [2024-11-13 12:44:59,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 147 transitions, 682 flow [2024-11-13 12:44:59,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:44:59,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 12:44:59,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 215 transitions. [2024-11-13 12:44:59,895 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6891025641025641 [2024-11-13 12:44:59,896 INFO L175 Difference]: Start difference. First operand has 103 places, 101 transitions, 318 flow. Second operand 3 states and 215 transitions. [2024-11-13 12:44:59,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 147 transitions, 682 flow [2024-11-13 12:44:59,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 147 transitions, 674 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 12:44:59,906 INFO L231 Difference]: Finished difference. Result has 105 places, 104 transitions, 340 flow [2024-11-13 12:44:59,907 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=105, PETRI_TRANSITIONS=104} [2024-11-13 12:44:59,909 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 15 predicate places. [2024-11-13 12:44:59,909 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 104 transitions, 340 flow [2024-11-13 12:44:59,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 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 12:44:59,910 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:44:59,910 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:44:59,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 12:45:00,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:45:00,115 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-13 12:45:00,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:45:00,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1152434416, now seen corresponding path program 1 times [2024-11-13 12:45:00,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:45:00,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294872074] [2024-11-13 12:45:00,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:45:00,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:45:00,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:45:00,251 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 12:45:00,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:45:00,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294872074] [2024-11-13 12:45:00,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294872074] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:45:00,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814879803] [2024-11-13 12:45:00,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:45:00,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:45:00,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:45:00,254 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:45:00,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 12:45:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:45:00,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 12:45:00,444 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:45:00,476 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 12:45:00,477 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:45:00,521 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 12:45:00,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814879803] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 12:45:00,521 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 12:45:00,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-13 12:45:00,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889437583] [2024-11-13 12:45:00,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 12:45:00,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 12:45:00,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:45:00,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 12:45:00,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-13 12:45:00,539 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 104 [2024-11-13 12:45:00,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 104 transitions, 340 flow. Second operand has 10 states, 10 states have (on average 48.9) internal successors, (489), 10 states have internal predecessors, (489), 0 states have call successors, (0), 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 12:45:00,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:45:00,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 104 [2024-11-13 12:45:00,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:45:01,158 INFO L124 PetriNetUnfolderBase]: 1021/2256 cut-off events. [2024-11-13 12:45:01,158 INFO L125 PetriNetUnfolderBase]: For 1422/1424 co-relation queries the response was YES. [2024-11-13 12:45:01,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5153 conditions, 2256 events. 1021/2256 cut-off events. For 1422/1424 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 15178 event pairs, 26 based on Foata normal form. 172/2360 useless extension candidates. Maximal degree in co-relation 5142. Up to 886 conditions per place. [2024-11-13 12:45:01,167 INFO L140 encePairwiseOnDemand]: 100/104 looper letters, 108 selfloop transitions, 5 changer transitions 0/143 dead transitions. [2024-11-13 12:45:01,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 143 transitions, 671 flow [2024-11-13 12:45:01,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 12:45:01,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-13 12:45:01,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 429 transitions. [2024-11-13 12:45:01,172 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5892857142857143 [2024-11-13 12:45:01,172 INFO L175 Difference]: Start difference. First operand has 105 places, 104 transitions, 340 flow. Second operand 7 states and 429 transitions. [2024-11-13 12:45:01,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 143 transitions, 671 flow [2024-11-13 12:45:01,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 143 transitions, 659 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 12:45:01,177 INFO L231 Difference]: Finished difference. Result has 84 places, 66 transitions, 211 flow [2024-11-13 12:45:01,178 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=211, PETRI_PLACES=84, PETRI_TRANSITIONS=66} [2024-11-13 12:45:01,181 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, -6 predicate places. [2024-11-13 12:45:01,181 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 66 transitions, 211 flow [2024-11-13 12:45:01,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 48.9) internal successors, (489), 10 states have internal predecessors, (489), 0 states have call successors, (0), 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 12:45:01,183 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:45:01,183 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2024-11-13 12:45:01,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 12:45:01,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:45:01,387 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-13 12:45:01,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:45:01,388 INFO L85 PathProgramCache]: Analyzing trace with hash 141870233, now seen corresponding path program 1 times [2024-11-13 12:45:01,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:45:01,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956425084] [2024-11-13 12:45:01,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:45:01,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:45:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:45:01,439 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 12:45:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:45:01,484 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 12:45:01,484 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 12:45:01,485 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2024-11-13 12:45:01,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2024-11-13 12:45:01,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2024-11-13 12:45:01,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2024-11-13 12:45:01,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2024-11-13 12:45:01,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2024-11-13 12:45:01,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 19 remaining) [2024-11-13 12:45:01,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2024-11-13 12:45:01,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2024-11-13 12:45:01,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2024-11-13 12:45:01,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 19 remaining) [2024-11-13 12:45:01,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2024-11-13 12:45:01,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2024-11-13 12:45:01,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2024-11-13 12:45:01,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2024-11-13 12:45:01,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2024-11-13 12:45:01,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2024-11-13 12:45:01,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2024-11-13 12:45:01,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2024-11-13 12:45:01,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 12:45:01,486 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:45:01,487 WARN L247 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 12:45:01,487 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-13 12:45:01,523 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-13 12:45:01,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 137 transitions, 301 flow [2024-11-13 12:45:01,568 INFO L124 PetriNetUnfolderBase]: 46/272 cut-off events. [2024-11-13 12:45:01,569 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-13 12:45:01,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 272 events. 46/272 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1133 event pairs, 1 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 190. Up to 12 conditions per place. [2024-11-13 12:45:01,571 INFO L82 GeneralOperation]: Start removeDead. Operand has 118 places, 137 transitions, 301 flow [2024-11-13 12:45:01,574 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 137 transitions, 301 flow [2024-11-13 12:45:01,578 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 12:45:01,578 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;@24609604, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:45:01,578 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-13 12:45:01,582 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 12:45:01,583 INFO L124 PetriNetUnfolderBase]: 1/10 cut-off events. [2024-11-13 12:45:01,583 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 12:45:01,583 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:45:01,583 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 12:45:01,583 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 12:45:01,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:45:01,584 INFO L85 PathProgramCache]: Analyzing trace with hash 716394740, now seen corresponding path program 1 times [2024-11-13 12:45:01,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:45:01,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583523618] [2024-11-13 12:45:01,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:45:01,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:45:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:45:01,681 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 12:45:01,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:45:01,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583523618] [2024-11-13 12:45:01,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583523618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:45:01,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:45:01,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:45:01,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987241645] [2024-11-13 12:45:01,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:45:01,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:45:01,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:45:01,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:45:01,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:45:01,691 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 137 [2024-11-13 12:45:01,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 137 transitions, 301 flow. Second operand has 4 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 0 states have call successors, (0), 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 12:45:01,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:45:01,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 137 [2024-11-13 12:45:01,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:45:16,577 INFO L124 PetriNetUnfolderBase]: 87851/154955 cut-off events. [2024-11-13 12:45:16,577 INFO L125 PetriNetUnfolderBase]: For 1911/1911 co-relation queries the response was YES. [2024-11-13 12:45:16,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275078 conditions, 154955 events. 87851/154955 cut-off events. For 1911/1911 co-relation queries the response was YES. Maximal size of possible extension queue 3672. Compared 1613217 event pairs, 52468 based on Foata normal form. 31160/170369 useless extension candidates. Maximal degree in co-relation 17993. Up to 118961 conditions per place. [2024-11-13 12:45:17,341 INFO L140 encePairwiseOnDemand]: 111/137 looper letters, 78 selfloop transitions, 3 changer transitions 0/142 dead transitions. [2024-11-13 12:45:17,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 142 transitions, 473 flow [2024-11-13 12:45:17,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:45:17,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 12:45:17,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 360 transitions. [2024-11-13 12:45:17,343 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.656934306569343 [2024-11-13 12:45:17,343 INFO L175 Difference]: Start difference. First operand has 118 places, 137 transitions, 301 flow. Second operand 4 states and 360 transitions. [2024-11-13 12:45:17,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 142 transitions, 473 flow [2024-11-13 12:45:17,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 142 transitions, 473 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 12:45:17,347 INFO L231 Difference]: Finished difference. Result has 123 places, 119 transitions, 285 flow [2024-11-13 12:45:17,348 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=285, PETRI_PLACES=123, PETRI_TRANSITIONS=119} [2024-11-13 12:45:17,349 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, 5 predicate places. [2024-11-13 12:45:17,349 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 119 transitions, 285 flow [2024-11-13 12:45:17,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 0 states have call successors, (0), 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 12:45:17,349 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:45:17,349 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-13 12:45:17,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 12:45:17,350 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 12:45:17,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:45:17,350 INFO L85 PathProgramCache]: Analyzing trace with hash -629931610, now seen corresponding path program 1 times [2024-11-13 12:45:17,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:45:17,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381365253] [2024-11-13 12:45:17,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:45:17,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:45:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:45:17,504 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:45:17,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:45:17,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381365253] [2024-11-13 12:45:17,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381365253] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:45:17,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936156118] [2024-11-13 12:45:17,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:45:17,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:45:17,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:45:17,507 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:45:17,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 12:45:17,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:45:17,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 12:45:17,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:45:17,755 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:45:17,756 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:45:17,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936156118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:45:17,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:45:17,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-13 12:45:17,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811320363] [2024-11-13 12:45:17,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:45:17,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:45:17,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:45:17,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:45:17,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 12:45:17,770 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 137 [2024-11-13 12:45:17,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 119 transitions, 285 flow. Second operand has 6 states, 6 states have (on average 62.5) internal successors, (375), 6 states have internal predecessors, (375), 0 states have call successors, (0), 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 12:45:17,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:45:17,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 137 [2024-11-13 12:45:17,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:45:28,671 INFO L124 PetriNetUnfolderBase]: 71934/130471 cut-off events. [2024-11-13 12:45:28,672 INFO L125 PetriNetUnfolderBase]: For 7069/7069 co-relation queries the response was YES. [2024-11-13 12:45:28,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235089 conditions, 130471 events. 71934/130471 cut-off events. For 7069/7069 co-relation queries the response was YES. Maximal size of possible extension queue 2946. Compared 1375883 event pairs, 8196 based on Foata normal form. 1872/116616 useless extension candidates. Maximal degree in co-relation 19910. Up to 63134 conditions per place. [2024-11-13 12:45:29,358 INFO L140 encePairwiseOnDemand]: 132/137 looper letters, 140 selfloop transitions, 6 changer transitions 0/207 dead transitions. [2024-11-13 12:45:29,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 207 transitions, 751 flow [2024-11-13 12:45:29,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:45:29,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 12:45:29,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 513 transitions. [2024-11-13 12:45:29,368 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6240875912408759 [2024-11-13 12:45:29,368 INFO L175 Difference]: Start difference. First operand has 123 places, 119 transitions, 285 flow. Second operand 6 states and 513 transitions. [2024-11-13 12:45:29,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 207 transitions, 751 flow [2024-11-13 12:45:29,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 207 transitions, 749 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 12:45:29,373 INFO L231 Difference]: Finished difference. Result has 126 places, 118 transitions, 291 flow [2024-11-13 12:45:29,374 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=291, PETRI_PLACES=126, PETRI_TRANSITIONS=118} [2024-11-13 12:45:29,375 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, 8 predicate places. [2024-11-13 12:45:29,375 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 118 transitions, 291 flow [2024-11-13 12:45:29,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.5) internal successors, (375), 6 states have internal predecessors, (375), 0 states have call successors, (0), 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 12:45:29,376 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:45:29,376 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:45:29,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 12:45:29,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:45:29,577 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 12:45:29,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:45:29,581 INFO L85 PathProgramCache]: Analyzing trace with hash -630012280, now seen corresponding path program 1 times [2024-11-13 12:45:29,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:45:29,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218139653] [2024-11-13 12:45:29,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:45:29,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:45:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:45:29,689 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 12:45:29,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:45:29,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218139653] [2024-11-13 12:45:29,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218139653] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:45:29,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450190178] [2024-11-13 12:45:29,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:45:29,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:45:29,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:45:29,692 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:45:29,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e6586d-5e2e-4388-b9ef-fbbeb9c99f3f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 12:45:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:45:29,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 12:45:29,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:45:29,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 12:45:29,921 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:45:29,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450190178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:45:29,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:45:29,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2024-11-13 12:45:29,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622108664] [2024-11-13 12:45:29,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:45:29,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:45:29,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:45:29,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:45:29,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:45:29,938 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 137 [2024-11-13 12:45:29,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 118 transitions, 291 flow. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 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 12:45:29,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:45:29,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 137 [2024-11-13 12:45:29,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand