./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem03_label32.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_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/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_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem03_label32.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/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_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/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 06b61c7a92b1aafb8eaed71c9c03004c8dc3a1341fd95aec7c0057c1c21f0a3d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:33:22,881 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:33:23,001 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 15:33:23,009 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:33:23,012 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:33:23,055 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:33:23,058 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:33:23,059 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:33:23,059 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:33:23,059 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:33:23,059 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:33:23,060 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:33:23,061 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:33:23,061 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:33:23,061 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:33:23,062 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:33:23,062 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:33:23,064 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:33:23,064 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:33:23,064 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:33:23,065 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:33:23,065 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:33:23,065 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:33:23,065 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:33:23,065 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:33:23,065 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:33:23,065 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:33:23,066 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:33:23,066 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:33:23,066 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:33:23,066 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:33:23,066 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:33:23,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:33:23,066 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:33:23,066 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:33:23,067 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:33:23,067 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:33:23,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:33:23,067 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:33:23,067 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:33:23,067 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:33:23,067 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:33:23,067 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_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/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 -> 06b61c7a92b1aafb8eaed71c9c03004c8dc3a1341fd95aec7c0057c1c21f0a3d [2024-11-13 15:33:23,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:33:23,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:33:23,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:33:23,440 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:33:23,440 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:33:23,443 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/eca-rers2012/Problem03_label32.c Unable to find full path for "g++" [2024-11-13 15:33:25,748 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:33:26,341 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:33:26,342 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/sv-benchmarks/c/eca-rers2012/Problem03_label32.c [2024-11-13 15:33:26,360 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/data/435fa06f1/2b644898e1ec46239fc4117f12482602/FLAG524c02d63 [2024-11-13 15:33:26,386 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/data/435fa06f1/2b644898e1ec46239fc4117f12482602 [2024-11-13 15:33:26,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:33:26,392 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:33:26,395 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:33:26,395 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:33:26,402 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:33:26,403 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:33:26" (1/1) ... [2024-11-13 15:33:26,404 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24aec10b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:26, skipping insertion in model container [2024-11-13 15:33:26,407 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:33:26" (1/1) ... [2024-11-13 15:33:26,493 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:33:27,244 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_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/sv-benchmarks/c/eca-rers2012/Problem03_label32.c[59744,59757] [2024-11-13 15:33:27,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:33:27,314 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:33:27,667 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_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/sv-benchmarks/c/eca-rers2012/Problem03_label32.c[59744,59757] [2024-11-13 15:33:27,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:33:27,743 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:33:27,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:27 WrapperNode [2024-11-13 15:33:27,744 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:33:27,746 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:33:27,747 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:33:27,747 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:33:27,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:27" (1/1) ... [2024-11-13 15:33:27,785 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:27" (1/1) ... [2024-11-13 15:33:27,885 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1771 [2024-11-13 15:33:27,885 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:33:27,886 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:33:27,886 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:33:27,887 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:33:27,898 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:27" (1/1) ... [2024-11-13 15:33:27,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:27" (1/1) ... [2024-11-13 15:33:27,909 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:27" (1/1) ... [2024-11-13 15:33:27,964 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 15:33:27,964 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:27" (1/1) ... [2024-11-13 15:33:27,964 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:27" (1/1) ... [2024-11-13 15:33:28,021 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:27" (1/1) ... [2024-11-13 15:33:28,047 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:27" (1/1) ... [2024-11-13 15:33:28,064 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:27" (1/1) ... [2024-11-13 15:33:28,070 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:27" (1/1) ... [2024-11-13 15:33:28,093 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:33:28,095 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:33:28,095 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:33:28,095 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:33:28,096 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:27" (1/1) ... [2024-11-13 15:33:28,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:33:28,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:28,145 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:28,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:33:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:33:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:33:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:33:28,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:33:28,313 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:33:28,316 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:33:31,308 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live. [2024-11-13 15:33:31,308 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:33:31,325 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:33:31,325 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:33:31,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:33:31 BoogieIcfgContainer [2024-11-13 15:33:31,326 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:33:31,328 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:33:31,328 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:33:31,333 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:33:31,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:33:26" (1/3) ... [2024-11-13 15:33:31,334 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@250dafbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:33:31, skipping insertion in model container [2024-11-13 15:33:31,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:27" (2/3) ... [2024-11-13 15:33:31,334 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@250dafbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:33:31, skipping insertion in model container [2024-11-13 15:33:31,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:33:31" (3/3) ... [2024-11-13 15:33:31,335 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label32.c [2024-11-13 15:33:31,351 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:33:31,354 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem03_label32.c that has 1 procedures, 302 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 15:33:31,415 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:33:31,427 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;@7d5d7ec6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:33:31,427 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 15:33:31,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:31,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-13 15:33:31,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:31,447 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:31,448 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:31,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:31,453 INFO L85 PathProgramCache]: Analyzing trace with hash -965314358, now seen corresponding path program 1 times [2024-11-13 15:33:31,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:31,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353039043] [2024-11-13 15:33:31,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:31,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:33,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:33,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:33,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353039043] [2024-11-13 15:33:33,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353039043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:33,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:33,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:33:33,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255721786] [2024-11-13 15:33:33,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:33,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:33:33,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:33,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:33:33,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:33:33,122 INFO L87 Difference]: Start difference. First operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 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 3 states, 3 states have (on average 63.0) internal successors, (189), 2 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 15:33:34,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:34,927 INFO L93 Difference]: Finished difference Result 855 states and 1496 transitions. [2024-11-13 15:33:34,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:33:34,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 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 189 [2024-11-13 15:33:34,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:34,945 INFO L225 Difference]: With dead ends: 855 [2024-11-13 15:33:34,945 INFO L226 Difference]: Without dead ends: 460 [2024-11-13 15:33:34,949 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 15:33:34,955 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 107 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:34,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 175 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-13 15:33:34,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2024-11-13 15:33:35,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 459. [2024-11-13 15:33:35,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 458 states have (on average 1.5502183406113537) internal successors, (710), 458 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:35,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 710 transitions. [2024-11-13 15:33:35,034 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 710 transitions. Word has length 189 [2024-11-13 15:33:35,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:35,035 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 710 transitions. [2024-11-13 15:33:35,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 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 15:33:35,036 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 710 transitions. [2024-11-13 15:33:35,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-13 15:33:35,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:35,041 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:35,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:33:35,042 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:35,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:35,043 INFO L85 PathProgramCache]: Analyzing trace with hash -566284709, now seen corresponding path program 1 times [2024-11-13 15:33:35,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:35,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419505464] [2024-11-13 15:33:35,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:35,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:35,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:35,563 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:35,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:35,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419505464] [2024-11-13 15:33:35,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419505464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:35,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:35,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:33:35,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462374930] [2024-11-13 15:33:35,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:35,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:33:35,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:35,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:33:35,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:33:35,568 INFO L87 Difference]: Start difference. First operand 459 states and 710 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 2 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:37,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:37,002 INFO L93 Difference]: Finished difference Result 1340 states and 2081 transitions. [2024-11-13 15:33:37,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:33:37,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 2 states have internal predecessors, (194), 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 194 [2024-11-13 15:33:37,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:37,009 INFO L225 Difference]: With dead ends: 1340 [2024-11-13 15:33:37,009 INFO L226 Difference]: Without dead ends: 883 [2024-11-13 15:33:37,011 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 15:33:37,012 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 249 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:37,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 181 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 15:33:37,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2024-11-13 15:33:37,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 880. [2024-11-13 15:33:37,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 879 states have (on average 1.4675767918088738) internal successors, (1290), 879 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:37,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1290 transitions. [2024-11-13 15:33:37,070 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1290 transitions. Word has length 194 [2024-11-13 15:33:37,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:37,070 INFO L471 AbstractCegarLoop]: Abstraction has 880 states and 1290 transitions. [2024-11-13 15:33:37,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 2 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:37,071 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1290 transitions. [2024-11-13 15:33:37,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-13 15:33:37,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:37,081 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:37,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:33:37,082 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:37,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:37,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1422772213, now seen corresponding path program 1 times [2024-11-13 15:33:37,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:37,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535995360] [2024-11-13 15:33:37,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:37,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:37,500 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:37,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:37,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535995360] [2024-11-13 15:33:37,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535995360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:37,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:37,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:33:37,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200935407] [2024-11-13 15:33:37,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:37,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:33:37,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:37,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:33:37,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:33:37,507 INFO L87 Difference]: Start difference. First operand 880 states and 1290 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 2 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:38,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:38,954 INFO L93 Difference]: Finished difference Result 2594 states and 3819 transitions. [2024-11-13 15:33:38,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:33:38,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 2 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2024-11-13 15:33:38,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:38,964 INFO L225 Difference]: With dead ends: 2594 [2024-11-13 15:33:38,965 INFO L226 Difference]: Without dead ends: 1716 [2024-11-13 15:33:38,967 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 15:33:38,972 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 249 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:38,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 90 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 15:33:38,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2024-11-13 15:33:39,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1696. [2024-11-13 15:33:39,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1696 states, 1695 states have (on average 1.43834808259587) internal successors, (2438), 1695 states have internal predecessors, (2438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:39,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1696 states to 1696 states and 2438 transitions. [2024-11-13 15:33:39,085 INFO L78 Accepts]: Start accepts. Automaton has 1696 states and 2438 transitions. Word has length 197 [2024-11-13 15:33:39,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:39,086 INFO L471 AbstractCegarLoop]: Abstraction has 1696 states and 2438 transitions. [2024-11-13 15:33:39,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 2 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:39,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1696 states and 2438 transitions. [2024-11-13 15:33:39,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-13 15:33:39,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:39,094 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:39,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:33:39,095 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:39,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:39,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1287055233, now seen corresponding path program 1 times [2024-11-13 15:33:39,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:39,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295512287] [2024-11-13 15:33:39,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:39,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:40,452 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:33:40,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:40,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295512287] [2024-11-13 15:33:40,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295512287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:40,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:40,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:33:40,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775695161] [2024-11-13 15:33:40,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:40,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:33:40,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:40,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:33:40,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:33:40,459 INFO L87 Difference]: Start difference. First operand 1696 states and 2438 transitions. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:42,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:42,043 INFO L93 Difference]: Finished difference Result 3531 states and 5126 transitions. [2024-11-13 15:33:42,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:33:42,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 204 [2024-11-13 15:33:42,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:42,054 INFO L225 Difference]: With dead ends: 3531 [2024-11-13 15:33:42,054 INFO L226 Difference]: Without dead ends: 1663 [2024-11-13 15:33:42,057 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 15:33:42,059 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 299 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:42,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 47 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 15:33:42,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2024-11-13 15:33:42,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1663. [2024-11-13 15:33:42,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1663 states, 1662 states have (on average 1.3243080625752106) internal successors, (2201), 1662 states have internal predecessors, (2201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:42,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1663 states to 1663 states and 2201 transitions. [2024-11-13 15:33:42,124 INFO L78 Accepts]: Start accepts. Automaton has 1663 states and 2201 transitions. Word has length 204 [2024-11-13 15:33:42,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:42,124 INFO L471 AbstractCegarLoop]: Abstraction has 1663 states and 2201 transitions. [2024-11-13 15:33:42,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:42,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1663 states and 2201 transitions. [2024-11-13 15:33:42,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-13 15:33:42,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:42,134 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:42,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:33:42,135 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:42,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:42,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1880294172, now seen corresponding path program 1 times [2024-11-13 15:33:42,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:42,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838057213] [2024-11-13 15:33:42,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:42,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:42,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:43,313 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:43,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:43,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838057213] [2024-11-13 15:33:43,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838057213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:43,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:43,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:33:43,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132652950] [2024-11-13 15:33:43,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:43,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:33:43,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:43,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:33:43,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:33:43,318 INFO L87 Difference]: Start difference. First operand 1663 states and 2201 transitions. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:45,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:45,181 INFO L93 Difference]: Finished difference Result 4323 states and 5738 transitions. [2024-11-13 15:33:45,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:33:45,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 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 220 [2024-11-13 15:33:45,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:45,192 INFO L225 Difference]: With dead ends: 4323 [2024-11-13 15:33:45,193 INFO L226 Difference]: Without dead ends: 2488 [2024-11-13 15:33:45,196 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 15:33:45,198 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 194 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:45,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 94 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-13 15:33:45,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2024-11-13 15:33:45,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 2487. [2024-11-13 15:33:45,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2487 states, 2486 states have (on average 1.3073209975864843) internal successors, (3250), 2486 states have internal predecessors, (3250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:45,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2487 states to 2487 states and 3250 transitions. [2024-11-13 15:33:45,302 INFO L78 Accepts]: Start accepts. Automaton has 2487 states and 3250 transitions. Word has length 220 [2024-11-13 15:33:45,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:45,302 INFO L471 AbstractCegarLoop]: Abstraction has 2487 states and 3250 transitions. [2024-11-13 15:33:45,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:45,303 INFO L276 IsEmpty]: Start isEmpty. Operand 2487 states and 3250 transitions. [2024-11-13 15:33:45,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-13 15:33:45,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:45,310 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:45,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:33:45,310 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:45,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:45,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1161700993, now seen corresponding path program 1 times [2024-11-13 15:33:45,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:45,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884397309] [2024-11-13 15:33:45,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:45,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:45,599 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 15:33:45,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:45,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884397309] [2024-11-13 15:33:45,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884397309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:45,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:45,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:33:45,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088031116] [2024-11-13 15:33:45,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:45,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:33:45,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:45,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:33:45,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:33:45,603 INFO L87 Difference]: Start difference. First operand 2487 states and 3250 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 15:33:46,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:46,601 INFO L93 Difference]: Finished difference Result 6628 states and 8636 transitions. [2024-11-13 15:33:46,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:33:46,602 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 222 [2024-11-13 15:33:46,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:46,618 INFO L225 Difference]: With dead ends: 6628 [2024-11-13 15:33:46,618 INFO L226 Difference]: Without dead ends: 4143 [2024-11-13 15:33:46,621 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 15:33:46,622 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 202 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:46,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 117 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 15:33:46,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4143 states. [2024-11-13 15:33:46,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4143 to 4140. [2024-11-13 15:33:46,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4140 states, 4139 states have (on average 1.296206813239913) internal successors, (5365), 4139 states have internal predecessors, (5365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:46,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4140 states to 4140 states and 5365 transitions. [2024-11-13 15:33:46,729 INFO L78 Accepts]: Start accepts. Automaton has 4140 states and 5365 transitions. Word has length 222 [2024-11-13 15:33:46,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:46,729 INFO L471 AbstractCegarLoop]: Abstraction has 4140 states and 5365 transitions. [2024-11-13 15:33:46,730 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 15:33:46,730 INFO L276 IsEmpty]: Start isEmpty. Operand 4140 states and 5365 transitions. [2024-11-13 15:33:46,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-13 15:33:46,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:46,743 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:46,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:33:46,744 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:46,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:46,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1821290778, now seen corresponding path program 1 times [2024-11-13 15:33:46,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:46,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349132749] [2024-11-13 15:33:46,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:46,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:47,244 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 37 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:47,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:47,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349132749] [2024-11-13 15:33:47,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349132749] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:33:47,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085587265] [2024-11-13 15:33:47,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:47,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:33:47,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:47,251 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:33:47,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:33:47,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:47,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:33:47,478 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:33:47,898 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-13 15:33:47,898 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:33:47,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085587265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:47,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:33:47,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-13 15:33:47,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653991080] [2024-11-13 15:33:47,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:47,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:33:47,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:47,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:33:47,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:33:47,902 INFO L87 Difference]: Start difference. First operand 4140 states and 5365 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:48,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:48,917 INFO L93 Difference]: Finished difference Result 8287 states and 10744 transitions. [2024-11-13 15:33:48,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:33:48,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2024-11-13 15:33:48,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:48,931 INFO L225 Difference]: With dead ends: 8287 [2024-11-13 15:33:48,932 INFO L226 Difference]: Without dead ends: 4149 [2024-11-13 15:33:48,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:33:48,936 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 35 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:48,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 320 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 15:33:48,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4149 states. [2024-11-13 15:33:49,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4149 to 4140. [2024-11-13 15:33:49,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4140 states, 4139 states have (on average 1.285817830393815) internal successors, (5322), 4139 states have internal predecessors, (5322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:49,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4140 states to 4140 states and 5322 transitions. [2024-11-13 15:33:49,052 INFO L78 Accepts]: Start accepts. Automaton has 4140 states and 5322 transitions. Word has length 227 [2024-11-13 15:33:49,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:49,054 INFO L471 AbstractCegarLoop]: Abstraction has 4140 states and 5322 transitions. [2024-11-13 15:33:49,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:49,055 INFO L276 IsEmpty]: Start isEmpty. Operand 4140 states and 5322 transitions. [2024-11-13 15:33:49,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-13 15:33:49,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:49,066 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:49,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 15:33:49,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:33:49,271 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:49,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:49,272 INFO L85 PathProgramCache]: Analyzing trace with hash -261015710, now seen corresponding path program 1 times [2024-11-13 15:33:49,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:49,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924771975] [2024-11-13 15:33:49,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:49,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:49,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:50,060 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:33:50,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:50,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924771975] [2024-11-13 15:33:50,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924771975] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:33:50,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632226438] [2024-11-13 15:33:50,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:50,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:33:50,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:50,065 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:33:50,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:33:50,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:50,316 INFO L255 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:33:50,322 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:33:50,745 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:33:50,745 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:33:50,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632226438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:50,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:33:50,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-13 15:33:50,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676348236] [2024-11-13 15:33:50,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:50,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:33:50,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:50,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:33:50,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:33:50,748 INFO L87 Difference]: Start difference. First operand 4140 states and 5322 transitions. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:51,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:51,883 INFO L93 Difference]: Finished difference Result 12344 states and 15868 transitions. [2024-11-13 15:33:51,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:33:51,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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 233 [2024-11-13 15:33:51,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:51,911 INFO L225 Difference]: With dead ends: 12344 [2024-11-13 15:33:51,911 INFO L226 Difference]: Without dead ends: 8206 [2024-11-13 15:33:51,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:33:51,919 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 30 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:51,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 343 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 15:33:51,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8206 states. [2024-11-13 15:33:52,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8206 to 8200. [2024-11-13 15:33:52,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8200 states, 8199 states have (on average 1.1763629710940358) internal successors, (9645), 8199 states have internal predecessors, (9645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:52,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8200 states to 8200 states and 9645 transitions. [2024-11-13 15:33:52,122 INFO L78 Accepts]: Start accepts. Automaton has 8200 states and 9645 transitions. Word has length 233 [2024-11-13 15:33:52,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:52,122 INFO L471 AbstractCegarLoop]: Abstraction has 8200 states and 9645 transitions. [2024-11-13 15:33:52,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:52,123 INFO L276 IsEmpty]: Start isEmpty. Operand 8200 states and 9645 transitions. [2024-11-13 15:33:52,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2024-11-13 15:33:52,142 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:52,142 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:52,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 15:33:52,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:33:52,344 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:52,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:52,344 INFO L85 PathProgramCache]: Analyzing trace with hash 311798914, now seen corresponding path program 1 times [2024-11-13 15:33:52,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:52,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225257550] [2024-11-13 15:33:52,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:52,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:52,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:52,759 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:33:52,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:52,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225257550] [2024-11-13 15:33:52,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225257550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:52,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:52,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:33:52,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361616712] [2024-11-13 15:33:52,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:52,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:33:52,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:52,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:33:52,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:33:52,764 INFO L87 Difference]: Start difference. First operand 8200 states and 9645 transitions. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:54,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:54,018 INFO L93 Difference]: Finished difference Result 20458 states and 24504 transitions. [2024-11-13 15:33:54,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:33:54,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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 243 [2024-11-13 15:33:54,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:54,077 INFO L225 Difference]: With dead ends: 20458 [2024-11-13 15:33:54,077 INFO L226 Difference]: Without dead ends: 12260 [2024-11-13 15:33:54,088 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 15:33:54,090 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 211 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:54,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 126 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 15:33:54,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12260 states. [2024-11-13 15:33:54,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12260 to 12260. [2024-11-13 15:33:54,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12260 states, 12259 states have (on average 1.1418549637001387) internal successors, (13998), 12259 states have internal predecessors, (13998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:54,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12260 states to 12260 states and 13998 transitions. [2024-11-13 15:33:54,465 INFO L78 Accepts]: Start accepts. Automaton has 12260 states and 13998 transitions. Word has length 243 [2024-11-13 15:33:54,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:54,465 INFO L471 AbstractCegarLoop]: Abstraction has 12260 states and 13998 transitions. [2024-11-13 15:33:54,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:54,466 INFO L276 IsEmpty]: Start isEmpty. Operand 12260 states and 13998 transitions. [2024-11-13 15:33:54,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-13 15:33:54,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:54,487 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, 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] [2024-11-13 15:33:54,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 15:33:54,487 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:54,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:54,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1991799066, now seen corresponding path program 1 times [2024-11-13 15:33:54,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:54,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132250564] [2024-11-13 15:33:54,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:54,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:54,848 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:54,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:54,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132250564] [2024-11-13 15:33:54,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132250564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:54,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:54,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:33:54,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628728980] [2024-11-13 15:33:54,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:54,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:33:54,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:54,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:33:54,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:33:54,850 INFO L87 Difference]: Start difference. First operand 12260 states and 13998 transitions. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 2 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 15:33:56,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:56,074 INFO L93 Difference]: Finished difference Result 35312 states and 40338 transitions. [2024-11-13 15:33:56,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:33:56,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 2 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 15:33:56,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:56,141 INFO L225 Difference]: With dead ends: 35312 [2024-11-13 15:33:56,141 INFO L226 Difference]: Without dead ends: 23054 [2024-11-13 15:33:56,154 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 15:33:56,155 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 156 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:56,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 108 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 15:33:56,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23054 states. [2024-11-13 15:33:56,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23054 to 18965. [2024-11-13 15:33:56,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18965 states, 18964 states have (on average 1.1543450748787176) internal successors, (21891), 18964 states have internal predecessors, (21891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:56,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18965 states to 18965 states and 21891 transitions. [2024-11-13 15:33:56,627 INFO L78 Accepts]: Start accepts. Automaton has 18965 states and 21891 transitions. Word has length 264 [2024-11-13 15:33:56,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:56,628 INFO L471 AbstractCegarLoop]: Abstraction has 18965 states and 21891 transitions. [2024-11-13 15:33:56,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 2 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 15:33:56,628 INFO L276 IsEmpty]: Start isEmpty. Operand 18965 states and 21891 transitions. [2024-11-13 15:33:56,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-13 15:33:56,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:56,661 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, 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, 1, 1, 1, 1, 1, 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 15:33:56,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 15:33:56,662 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:56,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:56,662 INFO L85 PathProgramCache]: Analyzing trace with hash 483166933, now seen corresponding path program 1 times [2024-11-13 15:33:56,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:56,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448793333] [2024-11-13 15:33:56,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:56,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:57,229 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:57,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:57,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448793333] [2024-11-13 15:33:57,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448793333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:57,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:57,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:33:57,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219444232] [2024-11-13 15:33:57,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:57,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:33:57,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:57,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:33:57,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:33:57,231 INFO L87 Difference]: Start difference. First operand 18965 states and 21891 transitions. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:58,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:58,272 INFO L93 Difference]: Finished difference Result 37934 states and 43790 transitions. [2024-11-13 15:33:58,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:33:58,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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 285 [2024-11-13 15:33:58,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:58,323 INFO L225 Difference]: With dead ends: 37934 [2024-11-13 15:33:58,323 INFO L226 Difference]: Without dead ends: 18971 [2024-11-13 15:33:58,340 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 15:33:58,341 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 75 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:58,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 277 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 15:33:58,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18971 states. [2024-11-13 15:33:58,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18971 to 18559. [2024-11-13 15:33:58,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18559 states, 18558 states have (on average 1.1431188705679491) internal successors, (21214), 18558 states have internal predecessors, (21214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:58,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18559 states to 18559 states and 21214 transitions. [2024-11-13 15:33:58,795 INFO L78 Accepts]: Start accepts. Automaton has 18559 states and 21214 transitions. Word has length 285 [2024-11-13 15:33:58,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:58,796 INFO L471 AbstractCegarLoop]: Abstraction has 18559 states and 21214 transitions. [2024-11-13 15:33:58,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:58,797 INFO L276 IsEmpty]: Start isEmpty. Operand 18559 states and 21214 transitions. [2024-11-13 15:33:58,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2024-11-13 15:33:58,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:58,831 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, 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, 1, 1, 1, 1, 1, 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 15:33:58,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 15:33:58,832 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:58,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:58,832 INFO L85 PathProgramCache]: Analyzing trace with hash 2062856722, now seen corresponding path program 1 times [2024-11-13 15:33:58,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:58,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705607047] [2024-11-13 15:33:58,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:58,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:59,158 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:59,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:59,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705607047] [2024-11-13 15:33:59,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705607047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:59,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:59,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:33:59,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397877500] [2024-11-13 15:33:59,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:59,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:33:59,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:59,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:33:59,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:33:59,161 INFO L87 Difference]: Start difference. First operand 18559 states and 21214 transitions. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:34:00,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:34:00,308 INFO L93 Difference]: Finished difference Result 35472 states and 40489 transitions. [2024-11-13 15:34:00,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:34:00,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 327 [2024-11-13 15:34:00,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:34:00,346 INFO L225 Difference]: With dead ends: 35472 [2024-11-13 15:34:00,346 INFO L226 Difference]: Without dead ends: 16915 [2024-11-13 15:34:00,360 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 15:34:00,361 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 201 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:34:00,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 313 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 15:34:00,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16915 states. [2024-11-13 15:34:00,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16915 to 16912. [2024-11-13 15:34:00,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16912 states, 16911 states have (on average 1.1098101827213056) internal successors, (18768), 16911 states have internal predecessors, (18768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:34:00,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16912 states to 16912 states and 18768 transitions. [2024-11-13 15:34:00,723 INFO L78 Accepts]: Start accepts. Automaton has 16912 states and 18768 transitions. Word has length 327 [2024-11-13 15:34:00,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:34:00,723 INFO L471 AbstractCegarLoop]: Abstraction has 16912 states and 18768 transitions. [2024-11-13 15:34:00,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:34:00,724 INFO L276 IsEmpty]: Start isEmpty. Operand 16912 states and 18768 transitions. [2024-11-13 15:34:00,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2024-11-13 15:34:00,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:34:00,752 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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] [2024-11-13 15:34:00,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 15:34:00,752 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:34:00,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:34:00,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1698042156, now seen corresponding path program 1 times [2024-11-13 15:34:00,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:34:00,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8363606] [2024-11-13 15:34:00,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:34:00,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:34:00,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:01,821 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-13 15:34:01,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:34:01,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8363606] [2024-11-13 15:34:01,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8363606] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:34:01,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186074418] [2024-11-13 15:34:01,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:34:01,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:34:01,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:34:01,824 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:34:01,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 15:34:02,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:02,214 INFO L255 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:34:02,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:34:02,581 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-13 15:34:02,581 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:34:02,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186074418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:34:02,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:34:02,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-13 15:34:02,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889557464] [2024-11-13 15:34:02,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:34:02,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:34:02,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:34:02,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:34:02,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:34:02,585 INFO L87 Difference]: Start difference. First operand 16912 states and 18768 transitions. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:34:03,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:34:03,775 INFO L93 Difference]: Finished difference Result 48685 states and 54079 transitions. [2024-11-13 15:34:03,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:34:03,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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 357 [2024-11-13 15:34:03,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:34:03,831 INFO L225 Difference]: With dead ends: 48685 [2024-11-13 15:34:03,831 INFO L226 Difference]: Without dead ends: 31775 [2024-11-13 15:34:03,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:34:03,848 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 69 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:34:03,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 99 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 15:34:03,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31775 states. [2024-11-13 15:34:04,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31775 to 30748. [2024-11-13 15:34:04,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30748 states, 30747 states have (on average 1.0960093667674895) internal successors, (33699), 30747 states have internal predecessors, (33699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:34:04,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30748 states to 30748 states and 33699 transitions. [2024-11-13 15:34:04,418 INFO L78 Accepts]: Start accepts. Automaton has 30748 states and 33699 transitions. Word has length 357 [2024-11-13 15:34:04,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:34:04,419 INFO L471 AbstractCegarLoop]: Abstraction has 30748 states and 33699 transitions. [2024-11-13 15:34:04,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:34:04,419 INFO L276 IsEmpty]: Start isEmpty. Operand 30748 states and 33699 transitions. [2024-11-13 15:34:04,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2024-11-13 15:34:04,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:34:04,462 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, 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, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:34:04,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-13 15:34:04,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-13 15:34:04,663 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:34:04,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:34:04,664 INFO L85 PathProgramCache]: Analyzing trace with hash -156244717, now seen corresponding path program 1 times [2024-11-13 15:34:04,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:34:04,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431993145] [2024-11-13 15:34:04,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:34:04,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:34:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:05,049 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-11-13 15:34:05,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:34:05,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431993145] [2024-11-13 15:34:05,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431993145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:34:05,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:34:05,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:34:05,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144813843] [2024-11-13 15:34:05,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:34:05,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:34:05,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:34:05,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:34:05,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:34:05,052 INFO L87 Difference]: Start difference. First operand 30748 states and 33699 transitions. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:34:06,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:34:06,070 INFO L93 Difference]: Finished difference Result 60882 states and 66689 transitions. [2024-11-13 15:34:06,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:34:06,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 421 [2024-11-13 15:34:06,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:34:06,096 INFO L225 Difference]: With dead ends: 60882 [2024-11-13 15:34:06,096 INFO L226 Difference]: Without dead ends: 30136 [2024-11-13 15:34:06,114 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 15:34:06,114 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 214 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:34:06,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 288 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 15:34:06,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30136 states. [2024-11-13 15:34:06,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30136 to 25056. [2024-11-13 15:34:06,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25056 states, 25055 states have (on average 1.0763121133506286) internal successors, (26967), 25055 states have internal predecessors, (26967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:34:06,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25056 states to 25056 states and 26967 transitions. [2024-11-13 15:34:06,621 INFO L78 Accepts]: Start accepts. Automaton has 25056 states and 26967 transitions. Word has length 421 [2024-11-13 15:34:06,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:34:06,621 INFO L471 AbstractCegarLoop]: Abstraction has 25056 states and 26967 transitions. [2024-11-13 15:34:06,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:34:06,622 INFO L276 IsEmpty]: Start isEmpty. Operand 25056 states and 26967 transitions. [2024-11-13 15:34:06,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2024-11-13 15:34:06,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:34:06,652 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:34:06,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 15:34:06,653 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:34:06,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:34:06,655 INFO L85 PathProgramCache]: Analyzing trace with hash -801994357, now seen corresponding path program 1 times [2024-11-13 15:34:06,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:34:06,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719424715] [2024-11-13 15:34:06,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:34:06,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:34:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:07,099 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 326 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-11-13 15:34:07,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:34:07,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719424715] [2024-11-13 15:34:07,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719424715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:34:07,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:34:07,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:34:07,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475380522] [2024-11-13 15:34:07,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:34:07,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:34:07,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:34:07,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:34:07,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:34:07,102 INFO L87 Difference]: Start difference. First operand 25056 states and 26967 transitions. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:34:08,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:34:08,200 INFO L93 Difference]: Finished difference Result 46644 states and 50158 transitions. [2024-11-13 15:34:08,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:34:08,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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 454 [2024-11-13 15:34:08,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:34:08,228 INFO L225 Difference]: With dead ends: 46644 [2024-11-13 15:34:08,229 INFO L226 Difference]: Without dead ends: 21590 [2024-11-13 15:34:08,243 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 15:34:08,243 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 215 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:34:08,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 306 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 15:34:08,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21590 states. [2024-11-13 15:34:08,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21590 to 20974. [2024-11-13 15:34:08,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20974 states, 20973 states have (on average 1.0674676965622467) internal successors, (22388), 20973 states have internal predecessors, (22388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:34:08,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20974 states to 20974 states and 22388 transitions. [2024-11-13 15:34:08,696 INFO L78 Accepts]: Start accepts. Automaton has 20974 states and 22388 transitions. Word has length 454 [2024-11-13 15:34:08,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:34:08,697 INFO L471 AbstractCegarLoop]: Abstraction has 20974 states and 22388 transitions. [2024-11-13 15:34:08,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:34:08,697 INFO L276 IsEmpty]: Start isEmpty. Operand 20974 states and 22388 transitions. [2024-11-13 15:34:08,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-11-13 15:34:08,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:34:08,718 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:34:08,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 15:34:08,718 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:34:08,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:34:08,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1120400584, now seen corresponding path program 1 times [2024-11-13 15:34:08,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:34:08,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868293006] [2024-11-13 15:34:08,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:34:08,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:34:08,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:09,600 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 438 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:34:09,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:34:09,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868293006] [2024-11-13 15:34:09,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868293006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:34:09,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:34:09,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:34:09,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317544901] [2024-11-13 15:34:09,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:34:09,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:34:09,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:34:09,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:34:09,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:34:09,604 INFO L87 Difference]: Start difference. First operand 20974 states and 22388 transitions. Second operand has 4 states, 4 states have (on average 112.5) internal successors, (450), 4 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:34:11,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:34:11,261 INFO L93 Difference]: Finished difference Result 49474 states and 52813 transitions. [2024-11-13 15:34:11,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:34:11,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 112.5) internal successors, (450), 4 states have internal predecessors, (450), 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 455 [2024-11-13 15:34:11,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:34:11,264 INFO L225 Difference]: With dead ends: 49474 [2024-11-13 15:34:11,264 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 15:34:11,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 15:34:11,281 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 326 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:34:11,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 74 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 15:34:11,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 15:34:11,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 15:34:11,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:34:11,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 15:34:11,283 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 455 [2024-11-13 15:34:11,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:34:11,283 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 15:34:11,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.5) internal successors, (450), 4 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:34:11,284 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 15:34:11,284 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 15:34:11,287 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 15:34:11,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 15:34:11,292 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:34:11,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 15:34:15,667 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 15:34:15,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 03:34:15 BoogieIcfgContainer [2024-11-13 15:34:15,734 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 15:34:15,735 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:34:15,739 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:34:15,739 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:34:15,740 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:33:31" (3/4) ... [2024-11-13 15:34:15,743 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 15:34:15,783 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-13 15:34:15,786 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 15:34:15,788 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 15:34:15,791 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 15:34:16,045 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 15:34:16,045 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 15:34:16,045 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:34:16,046 INFO L158 Benchmark]: Toolchain (without parser) took 49655.01ms. Allocated memory was 117.4MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 86.1MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 480.2MB. Max. memory is 16.1GB. [2024-11-13 15:34:16,047 INFO L158 Benchmark]: CDTParser took 1.10ms. Allocated memory is still 83.9MB. Free memory is still 41.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:34:16,047 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1349.76ms. Allocated memory is still 117.4MB. Free memory was 86.1MB in the beginning and 81.2MB in the end (delta: 4.9MB). Peak memory consumption was 69.3MB. Max. memory is 16.1GB. [2024-11-13 15:34:16,048 INFO L158 Benchmark]: Boogie Procedure Inliner took 139.20ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 66.7MB in the end (delta: 14.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:34:16,048 INFO L158 Benchmark]: Boogie Preprocessor took 207.02ms. Allocated memory is still 117.4MB. Free memory was 66.7MB in the beginning and 54.8MB in the end (delta: 11.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:34:16,048 INFO L158 Benchmark]: RCFGBuilder took 3230.74ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 54.8MB in the beginning and 128.1MB in the end (delta: -73.3MB). Peak memory consumption was 103.5MB. Max. memory is 16.1GB. [2024-11-13 15:34:16,049 INFO L158 Benchmark]: TraceAbstraction took 44406.54ms. Allocated memory was 234.9MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 128.1MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 600.2MB. Max. memory is 16.1GB. [2024-11-13 15:34:16,049 INFO L158 Benchmark]: Witness Printer took 310.68ms. Allocated memory is still 1.8GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 15:34:16,051 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.10ms. Allocated memory is still 83.9MB. Free memory is still 41.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1349.76ms. Allocated memory is still 117.4MB. Free memory was 86.1MB in the beginning and 81.2MB in the end (delta: 4.9MB). Peak memory consumption was 69.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 139.20ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 66.7MB in the end (delta: 14.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 207.02ms. Allocated memory is still 117.4MB. Free memory was 66.7MB in the beginning and 54.8MB in the end (delta: 11.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * RCFGBuilder took 3230.74ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 54.8MB in the beginning and 128.1MB in the end (delta: -73.3MB). Peak memory consumption was 103.5MB. Max. memory is 16.1GB. * TraceAbstraction took 44406.54ms. Allocated memory was 234.9MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 128.1MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 600.2MB. Max. memory is 16.1GB. * Witness Printer took 310.68ms. Allocated memory is still 1.8GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1612]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 302 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 39.9s, OverallIterations: 16, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 21.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2832 SdHoareTripleChecker+Valid, 18.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2832 mSDsluCounter, 2958 SdHoareTripleChecker+Invalid, 15.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 313 mSDsCounter, 1586 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10014 IncrementalHoareTripleChecker+Invalid, 11600 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1586 mSolverCounterUnsat, 2645 mSDtfsCounter, 10014 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 858 GetRequests, 833 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30748occurred in iteration=13, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.0s AutomataMinimizationTime, 16 MinimizatonAttempts, 11270 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 10.1s InterpolantComputationTime, 5309 NumberOfCodeBlocks, 5309 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 5290 ConstructedInterpolants, 0 QuantifiedInterpolants, 17990 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1485 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 19 InterpolantComputations, 16 PerfectInterpolantSequences, 2386/2404 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1668]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((a5 == 1) && (a3 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a18 == 1)) && (a27 <= 0)) || (((((((((a15 == 1) && (a26 == 1)) && (a5 == 1)) && (a12 == 1)) && (a11 == 1)) && (a3 == 1)) && (a6 == 1)) && (a27 == 1)) && (a18 == 1))) || (((((((a5 == 1) && (a12 == 1)) && (a3 <= 0)) && (a11 <= 0)) && (a18 == 1)) && (a27 <= 0)) && (a6 <= 0))) || (((((((a5 == 1) && (a12 == 1)) && (a11 == 1)) && (a3 == 1)) && (a18 == 1)) && (a27 <= 0)) && (a6 <= 0))) || (((((((2 == a3) && (a5 == 1)) && (a12 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a27 == 1)) && (a18 == 1))) || (((((((a5 == 1) && (a11 == 1)) && (a3 == 1)) && (a6 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1))) || (((((((2 == a3) && (a5 == 1)) && (a12 == 1)) && (a11 == 1)) && (a18 == 1)) && (a27 <= 0)) && (a6 <= 0))) || (((((((2 == a3) && (a5 == 1)) && (a11 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || ((((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a11 == 1)) && (a3 == 1)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || (((((((a5 == 1) && (a12 == 1)) && (a3 <= 0)) && (a6 == 1)) && (a11 <= 0)) && (a18 == 1)) && (a27 <= 0))) || (((((((2 == a3) && (a5 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a18 == 1)) && (a27 <= 0))) || (((((((a5 == 1) && (a11 == 1)) && (a3 == 1)) && (a6 == 1)) && (a12 <= 0)) && (a18 == 1)) && (a27 <= 0))) || (((((((2 == a3) && (a5 == 1)) && (a12 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a18 == 1)) && (a27 <= 0))) || (((((((2 == a3) && (a5 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1))) || (((((((2 == a3) && (a5 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || (((((((a5 == 1) && (a11 == 1)) && (a3 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || (((((((a5 == 1) && (a3 <= 0)) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1))) || ((((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a3 <= 0)) && (a11 == 1)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || (((((((a5 == 1) && (a12 == 1)) && (a3 <= 0)) && (a11 == 1)) && (a18 == 1)) && (a27 <= 0)) && (a6 <= 0))) || (((((((a5 == 1) && (a3 <= 0)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || (((((((a5 == 1) && (a11 == 1)) && (a3 == 1)) && (a12 <= 0)) && (a18 == 1)) && (a27 <= 0)) && (a6 <= 0))) || (((((((a5 == 1) && (a3 <= 0)) && (a11 == 1)) && (a12 <= 0)) && (a18 == 1)) && (a27 <= 0)) && (a6 <= 0))) || ((((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a3 == 1)) && (a11 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || (((((((a5 == 1) && (a3 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a18 == 1)) && (a27 <= 0)) && (a6 <= 0))) || ((((((((2 == a3) && (a5 == 1)) && (a12 == 1)) && (a26 <= 0)) && (a11 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || ((((((((a26 == 1) && (a5 == 1)) && (a3 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || (((((((a5 == 1) && (a12 == 1)) && (a11 == 1)) && (a3 == 1)) && (a6 == 1)) && (a18 == 1)) && (a27 <= 0))) || (((((((2 == a3) && (a5 == 1)) && (a12 == 1)) && (a11 == 1)) && (a6 == 1)) && (a27 == 1)) && (a18 == 1))) || ((((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a3 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a27 == 1)) && (a18 == 1))) || ((((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a3 <= 0)) && (a11 == 1)) && (a6 == 1)) && (a27 == 1)) && (a18 == 1))) || ((((((((a5 == 1) && (a26 <= 0)) && (a3 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || ((((((((a26 == 1) && (2 == a3)) && (a5 == 1)) && (a12 == 1)) && (a11 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || (((((((2 == a3) && (a5 == 1)) && (a11 == 1)) && (a6 == 1)) && (a12 <= 0)) && (a18 == 1)) && (a27 <= 0))) || ((((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a3 <= 0)) && (a6 == 1)) && (a11 <= 0)) && (a27 == 1)) && (a18 == 1))) || (((((((a5 == 1) && (a12 == 1)) && (a3 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a18 == 1)) && (a27 <= 0))) || (((((((2 == a3) && (a5 == 1)) && (a11 == 1)) && (a6 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1))) || (((((((a5 == 1) && (a3 <= 0)) && (a11 == 1)) && (a6 == 1)) && (a12 <= 0)) && (a18 == 1)) && (a27 <= 0))) || ((((((((a15 == 1) && (a5 == 1)) && (a12 == 1)) && (a3 <= 0)) && (a11 == 1)) && (a6 == 1)) && (a27 == 1)) && (a18 == 1))) || (((((((a5 == 1) && (a12 == 1)) && (a3 <= 0)) && (a11 == 1)) && (a6 == 1)) && (a18 == 1)) && (a27 <= 0))) || (((((((a5 == 1) && (a3 <= 0)) && (a11 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || ((((((((a26 == 1) && (2 == a3)) && (a5 == 1)) && (a12 == 1)) && (a11 == 1)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || ((((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a3 <= 0)) && (a11 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || (((((((a5 == 1) && (a3 <= 0)) && (a11 == 1)) && (a6 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1))) || (((((((a5 == 1) && (a3 <= 0)) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a18 == 1)) && (a27 <= 0))) || (((((((a5 == 1) && (a3 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1))) || ((((((((2 == a3) && (a5 == 1)) && (a26 <= 0)) && (a11 == 1)) && (a12 <= 0)) && (a18 == 1)) && (a27 <= 0)) && (a6 <= 0))) || (((((((2 == a3) && (a5 == 1)) && (a12 == 1)) && (a11 <= 0)) && (a18 == 1)) && (a27 <= 0)) && (a6 <= 0))) RESULT: Ultimate proved your program to be correct! [2024-11-13 15:34:16,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74f1650-3c57-49d7-a04f-a08b1e5f16ad/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE