./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem13_label42.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3e5254-3bae-4b9d-bb34-571b84f0da39/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3e5254-3bae-4b9d-bb34-571b84f0da39/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_9f3e5254-3bae-4b9d-bb34-571b84f0da39/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3e5254-3bae-4b9d-bb34-571b84f0da39/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem13_label42.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3e5254-3bae-4b9d-bb34-571b84f0da39/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3e5254-3bae-4b9d-bb34-571b84f0da39/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0543a7f62c421ec223229fb3e2bfbf903aa6057da67580bb11646235be2c5e7e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:53:09,671 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:53:09,798 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3e5254-3bae-4b9d-bb34-571b84f0da39/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 12:53:09,807 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:53:09,807 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:53:09,849 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:53:09,851 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:53:09,851 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:53:09,852 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 12:53:09,852 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 12:53:09,852 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:53:09,852 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:53:09,852 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:53:09,853 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:53:09,854 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:53:09,854 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:53:09,855 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 12:53:09,855 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 12:53:09,855 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:53:09,855 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 12:53:09,855 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:53:09,857 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 12:53:09,858 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:53:09,858 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 12:53:09,858 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:53:09,858 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 12:53:09,858 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 12:53:09,858 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:53:09,859 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:53:09,859 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:53:09,859 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 12:53:09,859 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:53:09,859 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:53:09,859 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:53:09,860 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:53:09,860 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 12:53:09,860 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 12:53:09,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 12:53:09,860 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:53:09,860 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 12:53:09,860 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 12:53:09,861 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 12:53:09,861 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_9f3e5254-3bae-4b9d-bb34-571b84f0da39/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 ! call(reach_error())) ) 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 -> 0543a7f62c421ec223229fb3e2bfbf903aa6057da67580bb11646235be2c5e7e [2024-11-13 12:53:10,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:53:10,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:53:10,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:53:10,251 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:53:10,251 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:53:10,254 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3e5254-3bae-4b9d-bb34-571b84f0da39/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/eca-rers2012/Problem13_label42.c Unable to find full path for "g++" [2024-11-13 12:53:12,688 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:53:13,663 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:53:13,665 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3e5254-3bae-4b9d-bb34-571b84f0da39/sv-benchmarks/c/eca-rers2012/Problem13_label42.c [2024-11-13 12:53:13,729 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3e5254-3bae-4b9d-bb34-571b84f0da39/bin/uautomizer-verify-qhAvR1uOyd/data/c0a578dd6/1c20a1eeb0f74d64873875811322f16f/FLAG8ce54ee5b [2024-11-13 12:53:13,764 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3e5254-3bae-4b9d-bb34-571b84f0da39/bin/uautomizer-verify-qhAvR1uOyd/data/c0a578dd6/1c20a1eeb0f74d64873875811322f16f [2024-11-13 12:53:13,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:53:13,770 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:53:13,772 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:53:13,773 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:53:13,784 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:53:13,786 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:53:13" (1/1) ... [2024-11-13 12:53:13,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@264a7bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:13, skipping insertion in model container [2024-11-13 12:53:13,787 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:53:13" (1/1) ... [2024-11-13 12:53:13,990 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:53:14,386 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3e5254-3bae-4b9d-bb34-571b84f0da39/sv-benchmarks/c/eca-rers2012/Problem13_label42.c[9228,9241] [2024-11-13 12:53:15,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:53:15,614 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:53:15,658 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3e5254-3bae-4b9d-bb34-571b84f0da39/sv-benchmarks/c/eca-rers2012/Problem13_label42.c[9228,9241] [2024-11-13 12:53:16,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:53:16,504 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:53:16,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:16 WrapperNode [2024-11-13 12:53:16,507 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:53:16,509 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:53:16,509 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:53:16,509 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:53:16,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:16" (1/1) ... [2024-11-13 12:53:16,636 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:16" (1/1) ... [2024-11-13 12:53:17,440 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5586 [2024-11-13 12:53:17,441 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:53:17,442 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:53:17,442 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:53:17,443 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:53:17,454 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:16" (1/1) ... [2024-11-13 12:53:17,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:16" (1/1) ... [2024-11-13 12:53:17,640 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:16" (1/1) ... [2024-11-13 12:53:17,992 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 12:53:17,992 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:16" (1/1) ... [2024-11-13 12:53:17,992 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:16" (1/1) ... [2024-11-13 12:53:18,295 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:16" (1/1) ... [2024-11-13 12:53:18,347 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:16" (1/1) ... [2024-11-13 12:53:18,381 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:16" (1/1) ... [2024-11-13 12:53:18,407 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:16" (1/1) ... [2024-11-13 12:53:18,486 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:53:18,488 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:53:18,488 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:53:18,488 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:53:18,490 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:16" (1/1) ... [2024-11-13 12:53:18,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:53:18,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3e5254-3bae-4b9d-bb34-571b84f0da39/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:53:18,537 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3e5254-3bae-4b9d-bb34-571b84f0da39/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 12:53:18,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3e5254-3bae-4b9d-bb34-571b84f0da39/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 12:53:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 12:53:18,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 12:53:18,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:53:18,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:53:18,683 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:53:18,685 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 12:53:28,076 INFO L? ?]: Removed 738 outVars from TransFormulas that were not future-live. [2024-11-13 12:53:28,077 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 12:53:28,139 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 12:53:28,139 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 12:53:28,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:53:28 BoogieIcfgContainer [2024-11-13 12:53:28,144 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 12:53:28,148 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 12:53:28,148 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 12:53:28,155 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 12:53:28,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:53:13" (1/3) ... [2024-11-13 12:53:28,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f34094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:53:28, skipping insertion in model container [2024-11-13 12:53:28,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:16" (2/3) ... [2024-11-13 12:53:28,157 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f34094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:53:28, skipping insertion in model container [2024-11-13 12:53:28,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:53:28" (3/3) ... [2024-11-13 12:53:28,159 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label42.c [2024-11-13 12:53:28,179 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 12:53:28,181 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem13_label42.c that has 1 procedures, 1098 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 12:53:28,339 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 12:53:28,363 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;@61794231, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:53:28,364 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 12:53:28,379 INFO L276 IsEmpty]: Start isEmpty. Operand has 1098 states, 1096 states have (on average 1.8275547445255473) internal successors, (2003), 1097 states have internal predecessors, (2003), 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 12:53:28,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 12:53:28,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:53:28,394 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:28,395 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:53:28,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:28,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1541599048, now seen corresponding path program 1 times [2024-11-13 12:53:28,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:28,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217215731] [2024-11-13 12:53:28,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:28,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:28,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:29,593 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 12:53:29,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:29,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217215731] [2024-11-13 12:53:29,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217215731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:29,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:29,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:53:29,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51490734] [2024-11-13 12:53:29,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:29,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:53:29,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:29,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:53:29,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:53:29,641 INFO L87 Difference]: Start difference. First operand has 1098 states, 1096 states have (on average 1.8275547445255473) internal successors, (2003), 1097 states have internal predecessors, (2003), 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) Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:53:40,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:53:40,717 INFO L93 Difference]: Finished difference Result 3829 states and 7206 transitions. [2024-11-13 12:53:40,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:53:40,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-13 12:53:40,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:53:40,757 INFO L225 Difference]: With dead ends: 3829 [2024-11-13 12:53:40,757 INFO L226 Difference]: Without dead ends: 2664 [2024-11-13 12:53:40,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:53:40,778 INFO L432 NwaCegarLoop]: 762 mSDtfsCounter, 2663 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 4246 mSolverCounterSat, 1607 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2663 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 5853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1607 IncrementalHoareTripleChecker+Valid, 4246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2024-11-13 12:53:40,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2663 Valid, 1069 Invalid, 5853 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1607 Valid, 4246 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2024-11-13 12:53:40,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states. [2024-11-13 12:53:40,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 2663. [2024-11-13 12:53:40,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2663 states, 2662 states have (on average 1.460931630353118) internal successors, (3889), 2662 states have internal predecessors, (3889), 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 12:53:40,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2663 states to 2663 states and 3889 transitions. [2024-11-13 12:53:40,990 INFO L78 Accepts]: Start accepts. Automaton has 2663 states and 3889 transitions. Word has length 65 [2024-11-13 12:53:40,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:53:40,991 INFO L471 AbstractCegarLoop]: Abstraction has 2663 states and 3889 transitions. [2024-11-13 12:53:40,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:53:40,992 INFO L276 IsEmpty]: Start isEmpty. Operand 2663 states and 3889 transitions. [2024-11-13 12:53:40,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-13 12:53:40,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:53:41,000 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:41,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 12:53:41,000 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:53:41,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:41,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1084875055, now seen corresponding path program 1 times [2024-11-13 12:53:41,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:41,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825878285] [2024-11-13 12:53:41,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:41,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:41,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:41,665 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:41,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:41,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825878285] [2024-11-13 12:53:41,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825878285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:41,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:41,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:53:41,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635569424] [2024-11-13 12:53:41,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:41,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:53:41,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:41,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:53:41,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:53:41,672 INFO L87 Difference]: Start difference. First operand 2663 states and 3889 transitions. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 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 12:53:51,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:53:51,064 INFO L93 Difference]: Finished difference Result 7864 states and 12669 transitions. [2024-11-13 12:53:51,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:53:51,065 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 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) Word has length 190 [2024-11-13 12:53:51,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:53:51,099 INFO L225 Difference]: With dead ends: 7864 [2024-11-13 12:53:51,100 INFO L226 Difference]: Without dead ends: 5990 [2024-11-13 12:53:51,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:53:51,108 INFO L432 NwaCegarLoop]: 893 mSDtfsCounter, 1691 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 5283 mSolverCounterSat, 843 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1691 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 6126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 843 IncrementalHoareTripleChecker+Valid, 5283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:53:51,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1691 Valid, 1068 Invalid, 6126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [843 Valid, 5283 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2024-11-13 12:53:51,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5990 states. [2024-11-13 12:53:51,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5990 to 5859. [2024-11-13 12:53:51,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5859 states, 5858 states have (on average 1.4452031410037556) internal successors, (8466), 5858 states have internal predecessors, (8466), 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 12:53:51,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 8466 transitions. [2024-11-13 12:53:51,274 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 8466 transitions. Word has length 190 [2024-11-13 12:53:51,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:53:51,276 INFO L471 AbstractCegarLoop]: Abstraction has 5859 states and 8466 transitions. [2024-11-13 12:53:51,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 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 12:53:51,277 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 8466 transitions. [2024-11-13 12:53:51,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-13 12:53:51,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:53:51,287 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:51,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 12:53:51,287 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:53:51,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:51,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1199320221, now seen corresponding path program 1 times [2024-11-13 12:53:51,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:51,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485084443] [2024-11-13 12:53:51,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:51,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:51,798 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-13 12:53:51,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:51,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485084443] [2024-11-13 12:53:51,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485084443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:51,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:51,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:53:51,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613184341] [2024-11-13 12:53:51,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:51,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:53:51,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:51,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:53:51,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:53:51,806 INFO L87 Difference]: Start difference. First operand 5859 states and 8466 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 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 12:53:57,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:53:57,190 INFO L93 Difference]: Finished difference Result 15687 states and 23390 transitions. [2024-11-13 12:53:57,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:53:57,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 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) Word has length 232 [2024-11-13 12:53:57,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:53:57,240 INFO L225 Difference]: With dead ends: 15687 [2024-11-13 12:53:57,240 INFO L226 Difference]: Without dead ends: 10617 [2024-11-13 12:53:57,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:53:57,250 INFO L432 NwaCegarLoop]: 785 mSDtfsCounter, 919 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 2554 mSolverCounterSat, 756 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 3310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 756 IncrementalHoareTripleChecker+Valid, 2554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:53:57,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 918 Invalid, 3310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [756 Valid, 2554 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-13 12:53:57,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10617 states. [2024-11-13 12:53:57,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10617 to 10608. [2024-11-13 12:53:57,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10608 states, 10607 states have (on average 1.3551428302064674) internal successors, (14374), 10607 states have internal predecessors, (14374), 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 12:53:57,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10608 states to 10608 states and 14374 transitions. [2024-11-13 12:53:57,513 INFO L78 Accepts]: Start accepts. Automaton has 10608 states and 14374 transitions. Word has length 232 [2024-11-13 12:53:57,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:53:57,515 INFO L471 AbstractCegarLoop]: Abstraction has 10608 states and 14374 transitions. [2024-11-13 12:53:57,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 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 12:53:57,516 INFO L276 IsEmpty]: Start isEmpty. Operand 10608 states and 14374 transitions. [2024-11-13 12:53:57,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-11-13 12:53:57,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:53:57,525 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:57,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 12:53:57,525 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:53:57,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:57,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1351021850, now seen corresponding path program 1 times [2024-11-13 12:53:57,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:57,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053232338] [2024-11-13 12:53:57,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:57,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:58,036 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-13 12:53:58,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:58,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053232338] [2024-11-13 12:53:58,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053232338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:58,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:58,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:53:58,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718545472] [2024-11-13 12:53:58,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:58,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:53:58,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:58,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:53:58,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:53:58,041 INFO L87 Difference]: Start difference. First operand 10608 states and 14374 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 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 12:54:03,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:54:03,393 INFO L93 Difference]: Finished difference Result 29087 states and 40052 transitions. [2024-11-13 12:54:03,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:54:03,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 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) Word has length 246 [2024-11-13 12:54:03,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:54:03,459 INFO L225 Difference]: With dead ends: 29087 [2024-11-13 12:54:03,459 INFO L226 Difference]: Without dead ends: 19268 [2024-11-13 12:54:03,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:54:03,478 INFO L432 NwaCegarLoop]: 839 mSDtfsCounter, 886 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 2308 mSolverCounterSat, 870 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 3178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 870 IncrementalHoareTripleChecker+Valid, 2308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:54:03,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [886 Valid, 986 Invalid, 3178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [870 Valid, 2308 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-13 12:54:03,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19268 states. [2024-11-13 12:54:03,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19268 to 17691. [2024-11-13 12:54:03,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17691 states, 17690 states have (on average 1.2688524590163934) internal successors, (22446), 17690 states have internal predecessors, (22446), 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 12:54:03,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17691 states to 17691 states and 22446 transitions. [2024-11-13 12:54:03,992 INFO L78 Accepts]: Start accepts. Automaton has 17691 states and 22446 transitions. Word has length 246 [2024-11-13 12:54:03,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:54:03,993 INFO L471 AbstractCegarLoop]: Abstraction has 17691 states and 22446 transitions. [2024-11-13 12:54:03,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 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 12:54:03,993 INFO L276 IsEmpty]: Start isEmpty. Operand 17691 states and 22446 transitions. [2024-11-13 12:54:04,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-13 12:54:04,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:54:04,005 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:04,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 12:54:04,006 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:54:04,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:04,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1232098995, now seen corresponding path program 1 times [2024-11-13 12:54:04,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:54:04,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572520759] [2024-11-13 12:54:04,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:04,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:54:04,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:04,398 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:04,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:54:04,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572520759] [2024-11-13 12:54:04,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572520759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:04,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:04,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:54:04,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382002777] [2024-11-13 12:54:04,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:04,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:54:04,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:54:04,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:54:04,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:54:04,402 INFO L87 Difference]: Start difference. First operand 17691 states and 22446 transitions. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 12:54:10,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:54:10,481 INFO L93 Difference]: Finished difference Result 51136 states and 65282 transitions. [2024-11-13 12:54:10,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:54:10,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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) Word has length 264 [2024-11-13 12:54:10,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:54:10,576 INFO L225 Difference]: With dead ends: 51136 [2024-11-13 12:54:10,576 INFO L226 Difference]: Without dead ends: 34234 [2024-11-13 12:54:10,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:54:10,598 INFO L432 NwaCegarLoop]: 789 mSDtfsCounter, 859 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 2377 mSolverCounterSat, 920 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 3297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 920 IncrementalHoareTripleChecker+Valid, 2377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-13 12:54:10,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [859 Valid, 905 Invalid, 3297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [920 Valid, 2377 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-13 12:54:10,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34234 states. [2024-11-13 12:54:11,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34234 to 34224. [2024-11-13 12:54:11,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34224 states, 34223 states have (on average 1.2045115857756479) internal successors, (41222), 34223 states have internal predecessors, (41222), 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 12:54:11,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34224 states to 34224 states and 41222 transitions. [2024-11-13 12:54:11,233 INFO L78 Accepts]: Start accepts. Automaton has 34224 states and 41222 transitions. Word has length 264 [2024-11-13 12:54:11,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:54:11,234 INFO L471 AbstractCegarLoop]: Abstraction has 34224 states and 41222 transitions. [2024-11-13 12:54:11,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 12:54:11,235 INFO L276 IsEmpty]: Start isEmpty. Operand 34224 states and 41222 transitions. [2024-11-13 12:54:11,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2024-11-13 12:54:11,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:54:11,245 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:11,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 12:54:11,246 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:54:11,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:11,247 INFO L85 PathProgramCache]: Analyzing trace with hash 940180331, now seen corresponding path program 1 times [2024-11-13 12:54:11,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:54:11,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246970161] [2024-11-13 12:54:11,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:11,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:54:11,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:11,757 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 361 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-13 12:54:11,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:54:11,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246970161] [2024-11-13 12:54:11,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246970161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:11,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:11,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:54:11,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831627750] [2024-11-13 12:54:11,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:11,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:54:11,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:54:11,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:54:11,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:54:11,760 INFO L87 Difference]: Start difference. First operand 34224 states and 41222 transitions. Second operand has 4 states, 4 states have (on average 67.75) internal successors, (271), 3 states have internal predecessors, (271), 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 12:54:22,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:54:22,268 INFO L93 Difference]: Finished difference Result 93055 states and 113454 transitions. [2024-11-13 12:54:22,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:54:22,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 67.75) internal successors, (271), 3 states have internal predecessors, (271), 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) Word has length 333 [2024-11-13 12:54:22,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:54:22,411 INFO L225 Difference]: With dead ends: 93055 [2024-11-13 12:54:22,412 INFO L226 Difference]: Without dead ends: 59620 [2024-11-13 12:54:22,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:54:22,443 INFO L432 NwaCegarLoop]: 503 mSDtfsCounter, 1746 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 6069 mSolverCounterSat, 1183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 7252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1183 IncrementalHoareTripleChecker+Valid, 6069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:54:22,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1746 Valid, 703 Invalid, 7252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1183 Valid, 6069 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2024-11-13 12:54:22,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59620 states. [2024-11-13 12:54:23,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59620 to 59498. [2024-11-13 12:54:23,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59498 states, 59497 states have (on average 1.1958754222901995) internal successors, (71151), 59497 states have internal predecessors, (71151), 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 12:54:23,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59498 states to 59498 states and 71151 transitions. [2024-11-13 12:54:23,307 INFO L78 Accepts]: Start accepts. Automaton has 59498 states and 71151 transitions. Word has length 333 [2024-11-13 12:54:23,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:54:23,308 INFO L471 AbstractCegarLoop]: Abstraction has 59498 states and 71151 transitions. [2024-11-13 12:54:23,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.75) internal successors, (271), 3 states have internal predecessors, (271), 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 12:54:23,308 INFO L276 IsEmpty]: Start isEmpty. Operand 59498 states and 71151 transitions. [2024-11-13 12:54:23,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2024-11-13 12:54:23,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:54:23,321 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:23,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 12:54:23,322 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:54:23,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:23,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1018785946, now seen corresponding path program 1 times [2024-11-13 12:54:23,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:54:23,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159286321] [2024-11-13 12:54:23,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:23,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:54:23,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:24,313 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 361 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-13 12:54:24,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:54:24,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159286321] [2024-11-13 12:54:24,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159286321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:24,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:24,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:54:24,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410550171] [2024-11-13 12:54:24,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:24,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:54:24,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:54:24,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:54:24,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:54:24,319 INFO L87 Difference]: Start difference. First operand 59498 states and 71151 transitions. Second operand has 4 states, 4 states have (on average 71.5) internal successors, (286), 3 states have internal predecessors, (286), 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 12:54:31,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:54:31,788 INFO L93 Difference]: Finished difference Result 128460 states and 152498 transitions. [2024-11-13 12:54:31,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:54:31,788 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 71.5) internal successors, (286), 3 states have internal predecessors, (286), 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) Word has length 348 [2024-11-13 12:54:31,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:54:31,887 INFO L225 Difference]: With dead ends: 128460 [2024-11-13 12:54:31,887 INFO L226 Difference]: Without dead ends: 69751 [2024-11-13 12:54:31,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:54:31,928 INFO L432 NwaCegarLoop]: 929 mSDtfsCounter, 1634 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 4338 mSolverCounterSat, 704 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 5042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 704 IncrementalHoareTripleChecker+Valid, 4338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-13 12:54:31,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1634 Valid, 1078 Invalid, 5042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [704 Valid, 4338 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2024-11-13 12:54:31,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69751 states. [2024-11-13 12:54:32,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69751 to 65006. [2024-11-13 12:54:32,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65006 states, 65005 states have (on average 1.1784016614106607) internal successors, (76602), 65005 states have internal predecessors, (76602), 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 12:54:33,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65006 states to 65006 states and 76602 transitions. [2024-11-13 12:54:33,376 INFO L78 Accepts]: Start accepts. Automaton has 65006 states and 76602 transitions. Word has length 348 [2024-11-13 12:54:33,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:54:33,377 INFO L471 AbstractCegarLoop]: Abstraction has 65006 states and 76602 transitions. [2024-11-13 12:54:33,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.5) internal successors, (286), 3 states have internal predecessors, (286), 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 12:54:33,377 INFO L276 IsEmpty]: Start isEmpty. Operand 65006 states and 76602 transitions. [2024-11-13 12:54:33,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2024-11-13 12:54:33,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:54:33,390 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:33,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 12:54:33,390 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:54:33,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:33,392 INFO L85 PathProgramCache]: Analyzing trace with hash 868868525, now seen corresponding path program 1 times [2024-11-13 12:54:33,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:54:33,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122575316] [2024-11-13 12:54:33,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:33,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:54:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:35,733 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 269 proven. 110 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-13 12:54:35,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:54:35,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122575316] [2024-11-13 12:54:35,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122575316] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:54:35,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433164935] [2024-11-13 12:54:35,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:35,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:35,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3e5254-3bae-4b9d-bb34-571b84f0da39/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:54:35,738 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3e5254-3bae-4b9d-bb34-571b84f0da39/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:54:35,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3e5254-3bae-4b9d-bb34-571b84f0da39/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 12:54:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:36,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 12:54:36,022 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:54:36,252 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 329 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-13 12:54:36,252 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:54:36,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433164935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:36,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:54:36,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-13 12:54:36,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729095604] [2024-11-13 12:54:36,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:36,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:54:36,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:54:36,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:54:36,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:54:36,258 INFO L87 Difference]: Start difference. First operand 65006 states and 76602 transitions. Second operand has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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 12:54:41,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:54:41,676 INFO L93 Difference]: Finished difference Result 129221 states and 152409 transitions. [2024-11-13 12:54:41,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:54:41,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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) Word has length 377 [2024-11-13 12:54:41,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:54:41,739 INFO L225 Difference]: With dead ends: 129221 [2024-11-13 12:54:41,739 INFO L226 Difference]: Without dead ends: 65004 [2024-11-13 12:54:41,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:54:41,772 INFO L432 NwaCegarLoop]: 1366 mSDtfsCounter, 1138 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 1448 SdHoareTripleChecker+Invalid, 2917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-13 12:54:41,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1138 Valid, 1448 Invalid, 2917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [451 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-13 12:54:41,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65004 states. [2024-11-13 12:54:42,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65004 to 65003. [2024-11-13 12:54:42,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65003 states, 65002 states have (on average 1.1379957539768006) internal successors, (73972), 65002 states have internal predecessors, (73972), 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 12:54:43,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65003 states to 65003 states and 73972 transitions. [2024-11-13 12:54:43,040 INFO L78 Accepts]: Start accepts. Automaton has 65003 states and 73972 transitions. Word has length 377 [2024-11-13 12:54:43,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:54:43,041 INFO L471 AbstractCegarLoop]: Abstraction has 65003 states and 73972 transitions. [2024-11-13 12:54:43,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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 12:54:43,041 INFO L276 IsEmpty]: Start isEmpty. Operand 65003 states and 73972 transitions. [2024-11-13 12:54:43,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2024-11-13 12:54:43,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:54:43,048 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:43,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3e5254-3bae-4b9d-bb34-571b84f0da39/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 12:54:43,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3e5254-3bae-4b9d-bb34-571b84f0da39/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:43,249 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:54:43,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:43,250 INFO L85 PathProgramCache]: Analyzing trace with hash -693353870, now seen corresponding path program 1 times [2024-11-13 12:54:43,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:54:43,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710073399] [2024-11-13 12:54:43,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:43,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:54:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:43,568 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 404 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-13 12:54:43,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:54:43,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710073399] [2024-11-13 12:54:43,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710073399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:43,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:43,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:54:43,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970666172] [2024-11-13 12:54:43,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:43,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:54:43,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:54:43,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:54:43,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:54:43,575 INFO L87 Difference]: Start difference. First operand 65003 states and 73972 transitions. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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 12:54:49,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:54:49,442 INFO L93 Difference]: Finished difference Result 133917 states and 151610 transitions. [2024-11-13 12:54:49,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:54:49,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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) Word has length 382 [2024-11-13 12:54:49,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:54:49,509 INFO L225 Difference]: With dead ends: 133917 [2024-11-13 12:54:49,509 INFO L226 Difference]: Without dead ends: 63396 [2024-11-13 12:54:49,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:54:49,532 INFO L432 NwaCegarLoop]: 1502 mSDtfsCounter, 1033 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 2348 mSolverCounterSat, 593 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 2941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 593 IncrementalHoareTripleChecker+Valid, 2348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:54:49,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1033 Valid, 1638 Invalid, 2941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [593 Valid, 2348 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-13 12:54:49,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63396 states. [2024-11-13 12:54:50,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63396 to 61813. [2024-11-13 12:54:50,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61813 states, 61812 states have (on average 1.0932343234323432) internal successors, (67575), 61812 states have internal predecessors, (67575), 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 12:54:50,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61813 states to 61813 states and 67575 transitions. [2024-11-13 12:54:50,424 INFO L78 Accepts]: Start accepts. Automaton has 61813 states and 67575 transitions. Word has length 382 [2024-11-13 12:54:50,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:54:50,425 INFO L471 AbstractCegarLoop]: Abstraction has 61813 states and 67575 transitions. [2024-11-13 12:54:50,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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 12:54:50,425 INFO L276 IsEmpty]: Start isEmpty. Operand 61813 states and 67575 transitions. [2024-11-13 12:54:50,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-13 12:54:50,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:54:50,431 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:50,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 12:54:50,431 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:54:50,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:50,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1304126916, now seen corresponding path program 1 times [2024-11-13 12:54:50,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:54:50,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392386587] [2024-11-13 12:54:50,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:50,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:54:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:51,117 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-13 12:54:51,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:54:51,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392386587] [2024-11-13 12:54:51,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392386587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:51,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:51,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:54:51,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648999215] [2024-11-13 12:54:51,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:51,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:54:51,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:54:51,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:54:51,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:54:51,120 INFO L87 Difference]: Start difference. First operand 61813 states and 67575 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 12:54:58,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:54:58,334 INFO L93 Difference]: Finished difference Result 149738 states and 164440 transitions. [2024-11-13 12:54:58,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:54:58,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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) Word has length 392 [2024-11-13 12:54:58,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:54:58,439 INFO L225 Difference]: With dead ends: 149738 [2024-11-13 12:54:58,439 INFO L226 Difference]: Without dead ends: 88714 [2024-11-13 12:54:58,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:54:58,475 INFO L432 NwaCegarLoop]: 545 mSDtfsCounter, 949 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 2969 mSolverCounterSat, 719 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 949 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 3688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 719 IncrementalHoareTripleChecker+Valid, 2969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-13 12:54:58,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [949 Valid, 638 Invalid, 3688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [719 Valid, 2969 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-11-13 12:54:58,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88714 states. [2024-11-13 12:54:59,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88714 to 87830. [2024-11-13 12:54:59,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87830 states, 87829 states have (on average 1.0991016634596773) internal successors, (96533), 87829 states have internal predecessors, (96533), 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 12:54:59,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87830 states to 87830 states and 96533 transitions. [2024-11-13 12:54:59,931 INFO L78 Accepts]: Start accepts. Automaton has 87830 states and 96533 transitions. Word has length 392 [2024-11-13 12:54:59,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:54:59,931 INFO L471 AbstractCegarLoop]: Abstraction has 87830 states and 96533 transitions. [2024-11-13 12:54:59,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 12:54:59,932 INFO L276 IsEmpty]: Start isEmpty. Operand 87830 states and 96533 transitions. [2024-11-13 12:54:59,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-11-13 12:54:59,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:54:59,942 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:59,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 12:54:59,944 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:54:59,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:59,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1585576661, now seen corresponding path program 1 times [2024-11-13 12:54:59,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:54:59,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667259278] [2024-11-13 12:54:59,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:59,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:55:00,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:55:02,096 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 429 proven. 113 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-11-13 12:55:02,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:55:02,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667259278] [2024-11-13 12:55:02,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667259278] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:55:02,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934125014] [2024-11-13 12:55:02,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:55:02,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:55:02,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3e5254-3bae-4b9d-bb34-571b84f0da39/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:55:02,100 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3e5254-3bae-4b9d-bb34-571b84f0da39/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:55:02,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3e5254-3bae-4b9d-bb34-571b84f0da39/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 12:55:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:55:02,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 12:55:02,364 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:55:03,450 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 429 proven. 0 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2024-11-13 12:55:03,450 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:55:03,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934125014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:55:03,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:55:03,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-13 12:55:03,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074750820] [2024-11-13 12:55:03,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:55:03,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:55:03,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:55:03,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:55:03,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-13 12:55:03,452 INFO L87 Difference]: Start difference. First operand 87830 states and 96533 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 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 12:55:08,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:55:08,199 INFO L93 Difference]: Finished difference Result 184330 states and 202329 transitions. [2024-11-13 12:55:08,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:55:08,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 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) Word has length 459 [2024-11-13 12:55:08,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:55:08,288 INFO L225 Difference]: With dead ends: 184330 [2024-11-13 12:55:08,288 INFO L226 Difference]: Without dead ends: 95714 [2024-11-13 12:55:08,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 458 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-13 12:55:08,319 INFO L432 NwaCegarLoop]: 1004 mSDtfsCounter, 684 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 2435 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 2587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 2435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:55:08,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 1135 Invalid, 2587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 2435 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-13 12:55:08,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95714 states. [2024-11-13 12:55:09,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95714 to 94129. [2024-11-13 12:55:09,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94129 states, 94128 states have (on average 1.0891658167601563) internal successors, (102521), 94128 states have internal predecessors, (102521), 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 12:55:09,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94129 states to 94129 states and 102521 transitions. [2024-11-13 12:55:09,410 INFO L78 Accepts]: Start accepts. Automaton has 94129 states and 102521 transitions. Word has length 459 [2024-11-13 12:55:09,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:55:09,410 INFO L471 AbstractCegarLoop]: Abstraction has 94129 states and 102521 transitions. [2024-11-13 12:55:09,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 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 12:55:09,410 INFO L276 IsEmpty]: Start isEmpty. Operand 94129 states and 102521 transitions. [2024-11-13 12:55:09,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2024-11-13 12:55:09,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:55:09,420 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:55:09,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3e5254-3bae-4b9d-bb34-571b84f0da39/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 12:55:09,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3e5254-3bae-4b9d-bb34-571b84f0da39/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:55:09,621 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:55:09,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:55:09,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1226772865, now seen corresponding path program 1 times [2024-11-13 12:55:09,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:55:09,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490214155] [2024-11-13 12:55:09,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:55:09,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:55:09,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:55:10,242 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 605 proven. 0 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2024-11-13 12:55:10,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:55:10,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490214155] [2024-11-13 12:55:10,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490214155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:55:10,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:55:10,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:55:10,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429478295] [2024-11-13 12:55:10,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:55:10,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:55:10,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:55:10,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:55:10,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:55:10,245 INFO L87 Difference]: Start difference. First operand 94129 states and 102521 transitions. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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 12:55:16,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:55:16,162 INFO L93 Difference]: Finished difference Result 217389 states and 238565 transitions. [2024-11-13 12:55:16,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:55:16,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) Word has length 468 [2024-11-13 12:55:16,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:55:16,316 INFO L225 Difference]: With dead ends: 217389 [2024-11-13 12:55:16,317 INFO L226 Difference]: Without dead ends: 124049 [2024-11-13 12:55:16,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:55:16,362 INFO L432 NwaCegarLoop]: 610 mSDtfsCounter, 947 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 2321 mSolverCounterSat, 915 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 3236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 915 IncrementalHoareTripleChecker+Valid, 2321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:55:16,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [947 Valid, 690 Invalid, 3236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [915 Valid, 2321 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-13 12:55:16,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124049 states. [2024-11-13 12:55:18,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124049 to 124032. [2024-11-13 12:55:18,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124032 states, 124031 states have (on average 1.0907837556739848) internal successors, (135291), 124031 states have internal predecessors, (135291), 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 12:55:19,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124032 states to 124032 states and 135291 transitions. [2024-11-13 12:55:19,450 INFO L78 Accepts]: Start accepts. Automaton has 124032 states and 135291 transitions. Word has length 468 [2024-11-13 12:55:19,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:55:19,454 INFO L471 AbstractCegarLoop]: Abstraction has 124032 states and 135291 transitions. [2024-11-13 12:55:19,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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 12:55:19,455 INFO L276 IsEmpty]: Start isEmpty. Operand 124032 states and 135291 transitions. [2024-11-13 12:55:19,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2024-11-13 12:55:19,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:55:19,482 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:55:19,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 12:55:19,482 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:55:19,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:55:19,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1019727607, now seen corresponding path program 1 times [2024-11-13 12:55:19,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:55:19,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105410965] [2024-11-13 12:55:19,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:55:19,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:55:19,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:55:20,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 757 trivial. 0 not checked. [2024-11-13 12:55:20,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:55:20,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105410965] [2024-11-13 12:55:20,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105410965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:55:20,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:55:20,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:55:20,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108412178] [2024-11-13 12:55:20,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:55:20,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:55:20,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:55:20,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:55:20,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:55:20,271 INFO L87 Difference]: Start difference. First operand 124032 states and 135291 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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 12:55:26,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:55:26,377 INFO L93 Difference]: Finished difference Result 296855 states and 325319 transitions. [2024-11-13 12:55:26,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:55:26,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) Word has length 509 [2024-11-13 12:55:26,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:55:26,559 INFO L225 Difference]: With dead ends: 296855 [2024-11-13 12:55:26,559 INFO L226 Difference]: Without dead ends: 173612 [2024-11-13 12:55:26,604 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:55:26,605 INFO L432 NwaCegarLoop]: 1497 mSDtfsCounter, 821 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 2707 mSolverCounterSat, 556 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 1644 SdHoareTripleChecker+Invalid, 3263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 556 IncrementalHoareTripleChecker+Valid, 2707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:55:26,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 1644 Invalid, 3263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [556 Valid, 2707 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-13 12:55:26,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173612 states. [2024-11-13 12:55:28,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173612 to 169674. [2024-11-13 12:55:28,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169674 states, 169673 states have (on average 1.0848809180010963) internal successors, (184075), 169673 states have internal predecessors, (184075), 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 12:55:29,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169674 states to 169674 states and 184075 transitions. [2024-11-13 12:55:29,277 INFO L78 Accepts]: Start accepts. Automaton has 169674 states and 184075 transitions. Word has length 509 [2024-11-13 12:55:29,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:55:29,277 INFO L471 AbstractCegarLoop]: Abstraction has 169674 states and 184075 transitions. [2024-11-13 12:55:29,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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 12:55:29,278 INFO L276 IsEmpty]: Start isEmpty. Operand 169674 states and 184075 transitions. [2024-11-13 12:55:29,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2024-11-13 12:55:29,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:55:29,291 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:55:29,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 12:55:29,293 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:55:29,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:55:29,293 INFO L85 PathProgramCache]: Analyzing trace with hash 326772429, now seen corresponding path program 1 times [2024-11-13 12:55:29,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:55:29,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947106361] [2024-11-13 12:55:29,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:55:29,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:55:29,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:55:29,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 638 proven. 0 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2024-11-13 12:55:29,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:55:29,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947106361] [2024-11-13 12:55:29,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947106361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:55:29,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:55:29,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:55:29,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270943395] [2024-11-13 12:55:29,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:55:29,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:55:29,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:55:29,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:55:29,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:55:29,809 INFO L87 Difference]: Start difference. First operand 169674 states and 184075 transitions. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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 12:55:35,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:55:35,394 INFO L93 Difference]: Finished difference Result 347977 states and 378004 transitions. [2024-11-13 12:55:35,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:55:35,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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) Word has length 532 [2024-11-13 12:55:35,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:55:35,593 INFO L225 Difference]: With dead ends: 347977 [2024-11-13 12:55:35,593 INFO L226 Difference]: Without dead ends: 179091 [2024-11-13 12:55:35,655 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:55:35,655 INFO L432 NwaCegarLoop]: 1392 mSDtfsCounter, 1011 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 2294 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 1472 SdHoareTripleChecker+Invalid, 2744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 2294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:55:35,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 1472 Invalid, 2744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 2294 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-13 12:55:35,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179091 states. [2024-11-13 12:55:37,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179091 to 179089. [2024-11-13 12:55:37,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179089 states, 179088 states have (on average 1.0778723309211113) internal successors, (193034), 179088 states have internal predecessors, (193034), 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 12:55:38,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179089 states to 179089 states and 193034 transitions. [2024-11-13 12:55:38,008 INFO L78 Accepts]: Start accepts. Automaton has 179089 states and 193034 transitions. Word has length 532 [2024-11-13 12:55:38,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:55:38,009 INFO L471 AbstractCegarLoop]: Abstraction has 179089 states and 193034 transitions. [2024-11-13 12:55:38,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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 12:55:38,009 INFO L276 IsEmpty]: Start isEmpty. Operand 179089 states and 193034 transitions. [2024-11-13 12:55:38,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2024-11-13 12:55:38,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:55:38,018 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:55:38,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 12:55:38,019 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:55:38,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:55:38,019 INFO L85 PathProgramCache]: Analyzing trace with hash 560839711, now seen corresponding path program 1 times [2024-11-13 12:55:38,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:55:38,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480596888] [2024-11-13 12:55:38,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:55:38,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:55:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:55:38,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 757 trivial. 0 not checked. [2024-11-13 12:55:38,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:55:38,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480596888] [2024-11-13 12:55:38,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480596888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:55:38,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:55:38,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:55:38,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592456986] [2024-11-13 12:55:38,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:55:38,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:55:38,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:55:38,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:55:38,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:55:38,792 INFO L87 Difference]: Start difference. First operand 179089 states and 193034 transitions. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 2 states have internal predecessors, (230), 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 12:55:42,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:55:42,828 INFO L93 Difference]: Finished difference Result 355013 states and 382549 transitions. [2024-11-13 12:55:42,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:55:42,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 2 states have internal predecessors, (230), 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) Word has length 550 [2024-11-13 12:55:42,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:55:43,054 INFO L225 Difference]: With dead ends: 355013 [2024-11-13 12:55:43,055 INFO L226 Difference]: Without dead ends: 176713 [2024-11-13 12:55:43,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:55:43,129 INFO L432 NwaCegarLoop]: 283 mSDtfsCounter, 1571 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1452 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:55:43,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1571 Valid, 283 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1452 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-13 12:55:43,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176713 states. [2024-11-13 12:55:45,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176713 to 176712. [2024-11-13 12:55:45,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176712 states, 176711 states have (on average 1.076842980912337) internal successors, (190290), 176711 states have internal predecessors, (190290), 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 12:55:45,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176712 states to 176712 states and 190290 transitions. [2024-11-13 12:55:45,879 INFO L78 Accepts]: Start accepts. Automaton has 176712 states and 190290 transitions. Word has length 550 [2024-11-13 12:55:45,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:55:45,880 INFO L471 AbstractCegarLoop]: Abstraction has 176712 states and 190290 transitions. [2024-11-13 12:55:45,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 2 states have internal predecessors, (230), 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 12:55:45,880 INFO L276 IsEmpty]: Start isEmpty. Operand 176712 states and 190290 transitions. [2024-11-13 12:55:45,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2024-11-13 12:55:45,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:55:45,894 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:55:45,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 12:55:45,895 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:55:45,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:55:45,895 INFO L85 PathProgramCache]: Analyzing trace with hash -698002593, now seen corresponding path program 1 times [2024-11-13 12:55:45,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:55:45,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320365703] [2024-11-13 12:55:45,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:55:45,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:55:45,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:55:47,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 638 proven. 0 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2024-11-13 12:55:47,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:55:47,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320365703] [2024-11-13 12:55:47,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320365703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:55:47,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:55:47,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:55:47,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443684807] [2024-11-13 12:55:47,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:55:47,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:55:47,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:55:47,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:55:47,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:55:47,034 INFO L87 Difference]: Start difference. First operand 176712 states and 190290 transitions. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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 12:55:52,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:55:52,961 INFO L93 Difference]: Finished difference Result 352631 states and 379785 transitions. [2024-11-13 12:55:52,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:55:52,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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) Word has length 565 [2024-11-13 12:55:52,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:55:53,178 INFO L225 Difference]: With dead ends: 352631 [2024-11-13 12:55:53,178 INFO L226 Difference]: Without dead ends: 176708 [2024-11-13 12:55:53,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:55:53,253 INFO L432 NwaCegarLoop]: 1310 mSDtfsCounter, 844 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 2382 mSolverCounterSat, 556 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 1387 SdHoareTripleChecker+Invalid, 2938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 556 IncrementalHoareTripleChecker+Valid, 2382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-13 12:55:53,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 1387 Invalid, 2938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [556 Valid, 2382 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-13 12:55:53,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176708 states. [2024-11-13 12:55:55,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176708 to 176696. [2024-11-13 12:55:55,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176696 states, 176695 states have (on average 1.0587226576869748) internal successors, (187071), 176695 states have internal predecessors, (187071), 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 12:55:56,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176696 states to 176696 states and 187071 transitions. [2024-11-13 12:55:56,199 INFO L78 Accepts]: Start accepts. Automaton has 176696 states and 187071 transitions. Word has length 565 [2024-11-13 12:55:56,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:55:56,199 INFO L471 AbstractCegarLoop]: Abstraction has 176696 states and 187071 transitions. [2024-11-13 12:55:56,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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 12:55:56,200 INFO L276 IsEmpty]: Start isEmpty. Operand 176696 states and 187071 transitions. [2024-11-13 12:55:56,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 661 [2024-11-13 12:55:56,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:55:56,215 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:55:56,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 12:55:56,215 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:55:56,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:55:56,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1768490372, now seen corresponding path program 1 times [2024-11-13 12:55:56,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:55:56,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329065690] [2024-11-13 12:55:56,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:55:56,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:55:56,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:55:56,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1510 backedges. 780 proven. 0 refuted. 0 times theorem prover too weak. 730 trivial. 0 not checked. [2024-11-13 12:55:56,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:55:56,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329065690] [2024-11-13 12:55:56,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329065690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:55:56,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:55:56,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:55:56,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432737455] [2024-11-13 12:55:56,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:55:56,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:55:56,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:55:56,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:55:56,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:55:56,796 INFO L87 Difference]: Start difference. First operand 176696 states and 187071 transitions. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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 12:56:03,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:56:03,299 INFO L93 Difference]: Finished difference Result 376250 states and 398035 transitions. [2024-11-13 12:56:03,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:56:03,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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) Word has length 660 [2024-11-13 12:56:03,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:56:03,494 INFO L225 Difference]: With dead ends: 376250 [2024-11-13 12:56:03,494 INFO L226 Difference]: Without dead ends: 193260 [2024-11-13 12:56:03,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:56:03,547 INFO L432 NwaCegarLoop]: 1750 mSDtfsCounter, 664 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 2481 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 1911 SdHoareTripleChecker+Invalid, 2644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 2481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-13 12:56:03,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 1911 Invalid, 2644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 2481 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-13 12:56:03,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193260 states. [2024-11-13 12:56:05,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193260 to 190894. [2024-11-13 12:56:06,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190894 states, 190893 states have (on average 1.0559109029665834) internal successors, (201566), 190893 states have internal predecessors, (201566), 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 12:56:07,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190894 states to 190894 states and 201566 transitions. [2024-11-13 12:56:07,084 INFO L78 Accepts]: Start accepts. Automaton has 190894 states and 201566 transitions. Word has length 660 [2024-11-13 12:56:07,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:56:07,085 INFO L471 AbstractCegarLoop]: Abstraction has 190894 states and 201566 transitions. [2024-11-13 12:56:07,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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 12:56:07,085 INFO L276 IsEmpty]: Start isEmpty. Operand 190894 states and 201566 transitions. [2024-11-13 12:56:07,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 690 [2024-11-13 12:56:07,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:56:07,108 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:56:07,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 12:56:07,108 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:56:07,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:56:07,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1552491559, now seen corresponding path program 1 times [2024-11-13 12:56:07,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:56:07,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301428903] [2024-11-13 12:56:07,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:56:07,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:56:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:56:07,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 951 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-13 12:56:07,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:56:07,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301428903] [2024-11-13 12:56:07,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301428903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:56:07,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:56:07,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:56:07,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069062730] [2024-11-13 12:56:07,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:56:07,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:56:07,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:56:07,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:56:07,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:56:07,866 INFO L87 Difference]: Start difference. First operand 190894 states and 201566 transitions. Second operand has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 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 12:56:13,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:56:13,333 INFO L93 Difference]: Finished difference Result 381015 states and 402360 transitions. [2024-11-13 12:56:13,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:56:13,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 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) Word has length 689 [2024-11-13 12:56:13,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:56:13,569 INFO L225 Difference]: With dead ends: 381015 [2024-11-13 12:56:13,570 INFO L226 Difference]: Without dead ends: 190910 [2024-11-13 12:56:13,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:56:13,658 INFO L432 NwaCegarLoop]: 1615 mSDtfsCounter, 761 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 2439 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 1749 SdHoareTripleChecker+Invalid, 2603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 2439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-13 12:56:13,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 1749 Invalid, 2603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 2439 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-13 12:56:13,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190910 states. [2024-11-13 12:56:16,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190910 to 187746. [2024-11-13 12:56:16,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187746 states, 187745 states have (on average 1.0534288529654585) internal successors, (197776), 187745 states have internal predecessors, (197776), 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)