./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label05.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 5958333028b8f64162c92b3e987d78deaf3d77dc73071d1f6edce3e1a07212a4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:02:39,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:02:39,511 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:02:39,520 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:02:39,521 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:02:39,579 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:02:39,580 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:02:39,580 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:02:39,581 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:02:39,582 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:02:39,583 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:02:39,584 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:02:39,584 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:02:39,585 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:02:39,586 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:02:39,586 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:02:39,587 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:02:39,587 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:02:39,588 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:02:39,589 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:02:39,589 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:02:39,590 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:02:39,590 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:02:39,591 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:02:39,591 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:02:39,592 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:02:39,592 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:02:39,593 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:02:39,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:02:39,594 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:02:39,612 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:02:39,612 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:02:39,613 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:02:39,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:02:39,613 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:02:39,614 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:02:39,614 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:02:39,614 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:02:39,615 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:02:39,615 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5958333028b8f64162c92b3e987d78deaf3d77dc73071d1f6edce3e1a07212a4 [2023-11-06 22:02:39,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:02:39,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:02:39,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:02:39,929 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:02:39,930 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:02:39,932 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/eca-rers2012/Problem01_label05.c [2023-11-06 22:02:42,909 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:02:43,247 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:02:43,255 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/sv-benchmarks/c/eca-rers2012/Problem01_label05.c [2023-11-06 22:02:43,268 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/data/a86becf99/44b50cf9ffce45318116f26180635c9a/FLAG809a0de30 [2023-11-06 22:02:43,283 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/data/a86becf99/44b50cf9ffce45318116f26180635c9a [2023-11-06 22:02:43,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:02:43,287 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:02:43,289 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:02:43,289 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:02:43,296 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:02:43,297 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:02:43" (1/1) ... [2023-11-06 22:02:43,298 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cc2b041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:43, skipping insertion in model container [2023-11-06 22:02:43,298 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:02:43" (1/1) ... [2023-11-06 22:02:43,346 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:02:43,665 WARN L240 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_4362bea8-5efa-4f72-891a-6d1c119f302b/sv-benchmarks/c/eca-rers2012/Problem01_label05.c[17240,17253] [2023-11-06 22:02:43,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:02:43,785 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:02:43,869 WARN L240 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_4362bea8-5efa-4f72-891a-6d1c119f302b/sv-benchmarks/c/eca-rers2012/Problem01_label05.c[17240,17253] [2023-11-06 22:02:43,887 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:02:43,904 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:02:43,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:43 WrapperNode [2023-11-06 22:02:43,905 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:02:43,906 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:02:43,907 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:02:43,907 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:02:43,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:43" (1/1) ... [2023-11-06 22:02:43,934 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:43" (1/1) ... [2023-11-06 22:02:43,987 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 658 [2023-11-06 22:02:43,988 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:02:43,989 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:02:43,989 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:02:43,989 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:02:43,999 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:43" (1/1) ... [2023-11-06 22:02:43,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:43" (1/1) ... [2023-11-06 22:02:44,004 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:43" (1/1) ... [2023-11-06 22:02:44,005 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:43" (1/1) ... [2023-11-06 22:02:44,060 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:43" (1/1) ... [2023-11-06 22:02:44,072 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:43" (1/1) ... [2023-11-06 22:02:44,084 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:43" (1/1) ... [2023-11-06 22:02:44,103 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:43" (1/1) ... [2023-11-06 22:02:44,116 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:02:44,117 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:02:44,118 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:02:44,119 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:02:44,120 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:43" (1/1) ... [2023-11-06 22:02:44,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:02:44,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:44,178 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:02:44,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:02:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:02:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:02:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:02:44,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:02:44,309 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:02:44,311 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:02:45,591 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:02:45,607 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:02:45,607 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:02:45,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:02:45 BoogieIcfgContainer [2023-11-06 22:02:45,611 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:02:45,617 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:02:45,617 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:02:45,620 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:02:45,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:02:43" (1/3) ... [2023-11-06 22:02:45,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@203126f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:02:45, skipping insertion in model container [2023-11-06 22:02:45,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:43" (2/3) ... [2023-11-06 22:02:45,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@203126f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:02:45, skipping insertion in model container [2023-11-06 22:02:45,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:02:45" (3/3) ... [2023-11-06 22:02:45,627 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label05.c [2023-11-06 22:02:45,648 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:02:45,649 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:02:45,722 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:02:45,730 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@7d0c568d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:02:45,731 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:02:45,737 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:45,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-06 22:02:45,749 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:45,750 INFO L195 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] [2023-11-06 22:02:45,751 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:45,756 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:45,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1877985287, now seen corresponding path program 1 times [2023-11-06 22:02:45,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:45,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549799583] [2023-11-06 22:02:45,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:45,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:46,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:46,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:46,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549799583] [2023-11-06 22:02:46,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549799583] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:46,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:46,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:02:46,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501367891] [2023-11-06 22:02:46,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:46,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:46,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:46,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:46,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:46,498 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 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) Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:47,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:47,405 INFO L93 Difference]: Finished difference Result 553 states and 940 transitions. [2023-11-06 22:02:47,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:47,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2023-11-06 22:02:47,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:47,421 INFO L225 Difference]: With dead ends: 553 [2023-11-06 22:02:47,422 INFO L226 Difference]: Without dead ends: 266 [2023-11-06 22:02:47,430 INFO L412 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 [2023-11-06 22:02:47,435 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 91 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:47,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 72 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 22:02:47,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2023-11-06 22:02:47,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2023-11-06 22:02:47,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4339622641509433) internal successors, (380), 265 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:47,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2023-11-06 22:02:47,518 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 94 [2023-11-06 22:02:47,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:47,520 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2023-11-06 22:02:47,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:47,521 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2023-11-06 22:02:47,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-06 22:02:47,531 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:47,531 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-06 22:02:47,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:02:47,532 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:47,533 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:47,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1993122394, now seen corresponding path program 1 times [2023-11-06 22:02:47,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:47,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331392424] [2023-11-06 22:02:47,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:47,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:47,681 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:47,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:47,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331392424] [2023-11-06 22:02:47,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331392424] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:47,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:47,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:02:47,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345941065] [2023-11-06 22:02:47,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:47,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:47,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:47,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:47,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:47,687 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:48,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:48,226 INFO L93 Difference]: Finished difference Result 792 states and 1135 transitions. [2023-11-06 22:02:48,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:48,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2023-11-06 22:02:48,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:48,231 INFO L225 Difference]: With dead ends: 792 [2023-11-06 22:02:48,232 INFO L226 Difference]: Without dead ends: 528 [2023-11-06 22:02:48,233 INFO L412 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 [2023-11-06 22:02:48,234 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 140 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:48,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 38 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 22:02:48,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2023-11-06 22:02:48,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2023-11-06 22:02:48,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.3434535104364327) internal successors, (708), 527 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:48,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 708 transitions. [2023-11-06 22:02:48,264 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 708 transitions. Word has length 100 [2023-11-06 22:02:48,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:48,264 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 708 transitions. [2023-11-06 22:02:48,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:48,265 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 708 transitions. [2023-11-06 22:02:48,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-06 22:02:48,268 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:48,268 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-11-06 22:02:48,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:02:48,268 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:48,269 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:48,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1992663058, now seen corresponding path program 1 times [2023-11-06 22:02:48,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:48,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121650453] [2023-11-06 22:02:48,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:48,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:48,428 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:48,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:48,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121650453] [2023-11-06 22:02:48,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121650453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:48,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:48,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:02:48,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30607492] [2023-11-06 22:02:48,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:48,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:48,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:48,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:48,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:48,432 INFO L87 Difference]: Start difference. First operand 528 states and 708 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:48,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:48,999 INFO L93 Difference]: Finished difference Result 1578 states and 2119 transitions. [2023-11-06 22:02:49,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:49,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2023-11-06 22:02:49,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:49,007 INFO L225 Difference]: With dead ends: 1578 [2023-11-06 22:02:49,007 INFO L226 Difference]: Without dead ends: 1052 [2023-11-06 22:02:49,008 INFO L412 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 [2023-11-06 22:02:49,010 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 136 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:49,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 192 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 22:02:49,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2023-11-06 22:02:49,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 921. [2023-11-06 22:02:49,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 920 states have (on average 1.2565217391304349) internal successors, (1156), 920 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:49,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1156 transitions. [2023-11-06 22:02:49,045 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1156 transitions. Word has length 105 [2023-11-06 22:02:49,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:49,046 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1156 transitions. [2023-11-06 22:02:49,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:49,046 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1156 transitions. [2023-11-06 22:02:49,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-06 22:02:49,050 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:49,051 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2023-11-06 22:02:49,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:02:49,051 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:49,052 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:49,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1576233932, now seen corresponding path program 1 times [2023-11-06 22:02:49,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:49,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741984566] [2023-11-06 22:02:49,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:49,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:49,277 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:49,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:49,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741984566] [2023-11-06 22:02:49,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741984566] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:49,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:49,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:02:49,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034578393] [2023-11-06 22:02:49,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:49,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:49,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:49,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:49,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:49,283 INFO L87 Difference]: Start difference. First operand 921 states and 1156 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:49,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:49,880 INFO L93 Difference]: Finished difference Result 2626 states and 3307 transitions. [2023-11-06 22:02:49,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:49,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2023-11-06 22:02:49,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:49,891 INFO L225 Difference]: With dead ends: 2626 [2023-11-06 22:02:49,891 INFO L226 Difference]: Without dead ends: 1707 [2023-11-06 22:02:49,893 INFO L412 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 [2023-11-06 22:02:49,895 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 117 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:49,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 198 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 22:02:49,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2023-11-06 22:02:49,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1576. [2023-11-06 22:02:49,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 1.2266666666666666) internal successors, (1932), 1575 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:49,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1932 transitions. [2023-11-06 22:02:49,942 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1932 transitions. Word has length 117 [2023-11-06 22:02:49,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:49,942 INFO L495 AbstractCegarLoop]: Abstraction has 1576 states and 1932 transitions. [2023-11-06 22:02:49,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:49,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1932 transitions. [2023-11-06 22:02:49,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-06 22:02:49,947 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:49,947 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-06 22:02:49,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:02:49,948 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:49,948 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:49,948 INFO L85 PathProgramCache]: Analyzing trace with hash 491046698, now seen corresponding path program 1 times [2023-11-06 22:02:49,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:49,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40956458] [2023-11-06 22:02:49,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:49,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:50,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:50,150 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-06 22:02:50,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:50,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40956458] [2023-11-06 22:02:50,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40956458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:50,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:50,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:02:50,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242572147] [2023-11-06 22:02:50,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:50,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:50,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:50,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:50,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:50,153 INFO L87 Difference]: Start difference. First operand 1576 states and 1932 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:50,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:50,719 INFO L93 Difference]: Finished difference Result 4198 states and 5152 transitions. [2023-11-06 22:02:50,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:50,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 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 121 [2023-11-06 22:02:50,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:50,733 INFO L225 Difference]: With dead ends: 4198 [2023-11-06 22:02:50,733 INFO L226 Difference]: Without dead ends: 2362 [2023-11-06 22:02:50,736 INFO L412 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 [2023-11-06 22:02:50,737 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 137 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:50,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 54 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 22:02:50,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2023-11-06 22:02:50,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2231. [2023-11-06 22:02:50,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2231 states, 2230 states have (on average 1.130493273542601) internal successors, (2521), 2230 states have internal predecessors, (2521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:50,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2521 transitions. [2023-11-06 22:02:50,797 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2521 transitions. Word has length 121 [2023-11-06 22:02:50,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:50,797 INFO L495 AbstractCegarLoop]: Abstraction has 2231 states and 2521 transitions. [2023-11-06 22:02:50,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:50,798 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2521 transitions. [2023-11-06 22:02:50,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-06 22:02:50,802 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:50,802 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2023-11-06 22:02:50,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:02:50,803 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:50,803 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:50,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1642863660, now seen corresponding path program 1 times [2023-11-06 22:02:50,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:50,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500071769] [2023-11-06 22:02:50,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:50,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:51,006 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-06 22:02:51,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:51,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500071769] [2023-11-06 22:02:51,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500071769] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:51,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:51,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:02:51,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170759999] [2023-11-06 22:02:51,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:51,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:51,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:51,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:51,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:51,011 INFO L87 Difference]: Start difference. First operand 2231 states and 2521 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:51,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:51,529 INFO L93 Difference]: Finished difference Result 5246 states and 5981 transitions. [2023-11-06 22:02:51,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:51,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 134 [2023-11-06 22:02:51,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:51,545 INFO L225 Difference]: With dead ends: 5246 [2023-11-06 22:02:51,546 INFO L226 Difference]: Without dead ends: 3148 [2023-11-06 22:02:51,551 INFO L412 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 [2023-11-06 22:02:51,553 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 132 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:51,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 23 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 22:02:51,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2023-11-06 22:02:51,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 2755. [2023-11-06 22:02:51,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2755 states, 2754 states have (on average 1.1394335511982572) internal successors, (3138), 2754 states have internal predecessors, (3138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:51,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 3138 transitions. [2023-11-06 22:02:51,636 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 3138 transitions. Word has length 134 [2023-11-06 22:02:51,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:51,637 INFO L495 AbstractCegarLoop]: Abstraction has 2755 states and 3138 transitions. [2023-11-06 22:02:51,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:51,638 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 3138 transitions. [2023-11-06 22:02:51,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-06 22:02:51,649 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:51,650 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2023-11-06 22:02:51,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:02:51,650 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:51,651 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:51,651 INFO L85 PathProgramCache]: Analyzing trace with hash -848374645, now seen corresponding path program 1 times [2023-11-06 22:02:51,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:51,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299835897] [2023-11-06 22:02:51,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:51,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:51,911 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-06 22:02:51,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:51,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299835897] [2023-11-06 22:02:51,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299835897] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:51,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:51,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:02:51,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966114601] [2023-11-06 22:02:51,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:51,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:51,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:51,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:51,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:51,914 INFO L87 Difference]: Start difference. First operand 2755 states and 3138 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:52,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:52,325 INFO L93 Difference]: Finished difference Result 5770 states and 6572 transitions. [2023-11-06 22:02:52,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:52,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 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 136 [2023-11-06 22:02:52,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:52,341 INFO L225 Difference]: With dead ends: 5770 [2023-11-06 22:02:52,341 INFO L226 Difference]: Without dead ends: 3017 [2023-11-06 22:02:52,345 INFO L412 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 [2023-11-06 22:02:52,346 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 118 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:52,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 44 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:02:52,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states. [2023-11-06 22:02:52,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 3017. [2023-11-06 22:02:52,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3017 states, 3016 states have (on average 1.131631299734748) internal successors, (3413), 3016 states have internal predecessors, (3413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:52,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 3413 transitions. [2023-11-06 22:02:52,423 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 3413 transitions. Word has length 136 [2023-11-06 22:02:52,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:52,424 INFO L495 AbstractCegarLoop]: Abstraction has 3017 states and 3413 transitions. [2023-11-06 22:02:52,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:52,424 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 3413 transitions. [2023-11-06 22:02:52,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-06 22:02:52,429 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:52,430 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2023-11-06 22:02:52,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:02:52,430 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:52,431 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:52,431 INFO L85 PathProgramCache]: Analyzing trace with hash -732302653, now seen corresponding path program 1 times [2023-11-06 22:02:52,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:52,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297110144] [2023-11-06 22:02:52,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:52,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:52,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:52,802 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 69 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-06 22:02:52,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:52,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297110144] [2023-11-06 22:02:52,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297110144] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:02:52,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688448565] [2023-11-06 22:02:52,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:52,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:52,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:52,810 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:52,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:02:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:52,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:02:52,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:53,234 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-06 22:02:53,234 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:53,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688448565] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:53,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:02:53,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-11-06 22:02:53,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511517667] [2023-11-06 22:02:53,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:53,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:53,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:53,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:53,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:02:53,237 INFO L87 Difference]: Start difference. First operand 3017 states and 3413 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:53,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:53,752 INFO L93 Difference]: Finished difference Result 5901 states and 6690 transitions. [2023-11-06 22:02:53,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:53,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 140 [2023-11-06 22:02:53,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:53,768 INFO L225 Difference]: With dead ends: 5901 [2023-11-06 22:02:53,768 INFO L226 Difference]: Without dead ends: 3017 [2023-11-06 22:02:53,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:02:53,772 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 50 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:53,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 18 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 22:02:53,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states. [2023-11-06 22:02:53,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 3017. [2023-11-06 22:02:53,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3017 states, 3016 states have (on average 1.1230106100795756) internal successors, (3387), 3016 states have internal predecessors, (3387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:53,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 3387 transitions. [2023-11-06 22:02:53,846 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 3387 transitions. Word has length 140 [2023-11-06 22:02:53,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:53,847 INFO L495 AbstractCegarLoop]: Abstraction has 3017 states and 3387 transitions. [2023-11-06 22:02:53,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:53,847 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 3387 transitions. [2023-11-06 22:02:53,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-06 22:02:53,852 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:53,853 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2023-11-06 22:02:53,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:54,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:54,058 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:54,059 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:54,059 INFO L85 PathProgramCache]: Analyzing trace with hash -545671403, now seen corresponding path program 1 times [2023-11-06 22:02:54,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:54,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205526077] [2023-11-06 22:02:54,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:54,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:54,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:54,413 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 69 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-06 22:02:54,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:54,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205526077] [2023-11-06 22:02:54,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205526077] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:02:54,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578102051] [2023-11-06 22:02:54,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:54,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:54,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:54,416 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:54,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:02:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:54,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:02:54,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:54,734 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-06 22:02:54,734 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:54,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578102051] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:54,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:02:54,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-11-06 22:02:54,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527349461] [2023-11-06 22:02:54,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:54,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:54,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:54,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:54,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:02:54,736 INFO L87 Difference]: Start difference. First operand 3017 states and 3387 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:55,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:55,207 INFO L93 Difference]: Finished difference Result 6032 states and 6786 transitions. [2023-11-06 22:02:55,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:55,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 145 [2023-11-06 22:02:55,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:55,226 INFO L225 Difference]: With dead ends: 6032 [2023-11-06 22:02:55,226 INFO L226 Difference]: Without dead ends: 3148 [2023-11-06 22:02:55,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:02:55,232 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 44 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:55,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 167 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:02:55,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2023-11-06 22:02:55,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 2624. [2023-11-06 22:02:55,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2624 states, 2623 states have (on average 1.0987418985894015) internal successors, (2882), 2623 states have internal predecessors, (2882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:55,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2624 states to 2624 states and 2882 transitions. [2023-11-06 22:02:55,320 INFO L78 Accepts]: Start accepts. Automaton has 2624 states and 2882 transitions. Word has length 145 [2023-11-06 22:02:55,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:55,320 INFO L495 AbstractCegarLoop]: Abstraction has 2624 states and 2882 transitions. [2023-11-06 22:02:55,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:55,325 INFO L276 IsEmpty]: Start isEmpty. Operand 2624 states and 2882 transitions. [2023-11-06 22:02:55,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-06 22:02:55,331 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:55,331 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 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] [2023-11-06 22:02:55,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-06 22:02:55,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-06 22:02:55,538 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:55,538 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:55,538 INFO L85 PathProgramCache]: Analyzing trace with hash 2007939310, now seen corresponding path program 1 times [2023-11-06 22:02:55,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:55,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281268077] [2023-11-06 22:02:55,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:55,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:55,877 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 98 proven. 6 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-06 22:02:55,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:55,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281268077] [2023-11-06 22:02:55,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281268077] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:02:55,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183550572] [2023-11-06 22:02:55,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:55,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:55,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:55,879 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:55,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:02:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:56,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:02:56,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:56,199 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-06 22:02:56,199 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:56,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183550572] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:56,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:02:56,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-11-06 22:02:56,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680707878] [2023-11-06 22:02:56,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:56,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:56,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:56,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:56,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:02:56,202 INFO L87 Difference]: Start difference. First operand 2624 states and 2882 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:56,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:56,682 INFO L93 Difference]: Finished difference Result 5901 states and 6522 transitions. [2023-11-06 22:02:56,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:56,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 162 [2023-11-06 22:02:56,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:56,701 INFO L225 Difference]: With dead ends: 5901 [2023-11-06 22:02:56,701 INFO L226 Difference]: Without dead ends: 3410 [2023-11-06 22:02:56,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:02:56,705 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 60 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:56,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 30 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:02:56,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3410 states. [2023-11-06 22:02:56,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3410 to 3017. [2023-11-06 22:02:56,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3017 states, 3016 states have (on average 1.0941644562334218) internal successors, (3300), 3016 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:56,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 3300 transitions. [2023-11-06 22:02:56,784 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 3300 transitions. Word has length 162 [2023-11-06 22:02:56,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:56,784 INFO L495 AbstractCegarLoop]: Abstraction has 3017 states and 3300 transitions. [2023-11-06 22:02:56,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:56,785 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 3300 transitions. [2023-11-06 22:02:56,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-06 22:02:56,793 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:56,794 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:56,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:57,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-06 22:02:57,011 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:57,011 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:57,012 INFO L85 PathProgramCache]: Analyzing trace with hash -773097767, now seen corresponding path program 1 times [2023-11-06 22:02:57,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:57,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978961049] [2023-11-06 22:02:57,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:57,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:57,387 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 69 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-06 22:02:57,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:57,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978961049] [2023-11-06 22:02:57,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978961049] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:02:57,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939206627] [2023-11-06 22:02:57,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:57,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:57,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:57,390 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:57,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:02:57,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:57,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:02:57,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:57,697 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-11-06 22:02:57,697 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:57,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939206627] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:57,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:02:57,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-11-06 22:02:57,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781542514] [2023-11-06 22:02:57,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:57,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:57,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:57,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:57,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:02:57,700 INFO L87 Difference]: Start difference. First operand 3017 states and 3300 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:58,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:58,134 INFO L93 Difference]: Finished difference Result 3412 states and 3737 transitions. [2023-11-06 22:02:58,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:58,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 169 [2023-11-06 22:02:58,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:58,153 INFO L225 Difference]: With dead ends: 3412 [2023-11-06 22:02:58,153 INFO L226 Difference]: Without dead ends: 3410 [2023-11-06 22:02:58,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:02:58,155 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 45 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:58,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 178 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:02:58,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3410 states. [2023-11-06 22:02:58,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3410 to 3148. [2023-11-06 22:02:58,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3148 states, 3147 states have (on average 1.0953288846520495) internal successors, (3447), 3147 states have internal predecessors, (3447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:58,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 3447 transitions. [2023-11-06 22:02:58,263 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 3447 transitions. Word has length 169 [2023-11-06 22:02:58,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:58,264 INFO L495 AbstractCegarLoop]: Abstraction has 3148 states and 3447 transitions. [2023-11-06 22:02:58,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:58,264 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 3447 transitions. [2023-11-06 22:02:58,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-06 22:02:58,271 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:58,271 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-06 22:02:58,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-06 22:02:58,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:58,477 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:58,477 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:58,478 INFO L85 PathProgramCache]: Analyzing trace with hash 851501066, now seen corresponding path program 1 times [2023-11-06 22:02:58,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:58,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048112616] [2023-11-06 22:02:58,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:58,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:58,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:58,717 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-06 22:02:58,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:58,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048112616] [2023-11-06 22:02:58,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048112616] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:58,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:58,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:02:58,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920179018] [2023-11-06 22:02:58,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:58,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:02:58,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:58,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:02:58,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:02:58,722 INFO L87 Difference]: Start difference. First operand 3148 states and 3447 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:59,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:59,387 INFO L93 Difference]: Finished difference Result 6294 states and 6905 transitions. [2023-11-06 22:02:59,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:02:59,388 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 170 [2023-11-06 22:02:59,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:59,416 INFO L225 Difference]: With dead ends: 6294 [2023-11-06 22:02:59,416 INFO L226 Difference]: Without dead ends: 3279 [2023-11-06 22:02:59,421 INFO L412 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 [2023-11-06 22:02:59,421 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 373 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:59,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 41 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 22:02:59,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2023-11-06 22:02:59,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 3148. [2023-11-06 22:02:59,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3148 states, 3147 states have (on average 1.088655862726406) internal successors, (3426), 3147 states have internal predecessors, (3426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:59,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 3426 transitions. [2023-11-06 22:02:59,531 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 3426 transitions. Word has length 170 [2023-11-06 22:02:59,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:59,532 INFO L495 AbstractCegarLoop]: Abstraction has 3148 states and 3426 transitions. [2023-11-06 22:02:59,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:59,532 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 3426 transitions. [2023-11-06 22:02:59,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-11-06 22:02:59,539 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:59,539 INFO L195 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, 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] [2023-11-06 22:02:59,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 22:02:59,540 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:59,540 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:59,540 INFO L85 PathProgramCache]: Analyzing trace with hash 596669353, now seen corresponding path program 1 times [2023-11-06 22:02:59,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:59,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496471689] [2023-11-06 22:02:59,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:59,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:59,865 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 119 proven. 29 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-06 22:02:59,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:59,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496471689] [2023-11-06 22:02:59,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496471689] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:02:59,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24194798] [2023-11-06 22:02:59,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:59,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:59,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:59,885 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:59,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:03:00,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:00,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:03:00,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:00,085 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-06 22:03:00,085 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:03:00,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24194798] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:00,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:03:00,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-11-06 22:03:00,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496914977] [2023-11-06 22:03:00,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:00,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:03:00,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:00,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:03:00,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:03:00,089 INFO L87 Difference]: Start difference. First operand 3148 states and 3426 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:00,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:00,505 INFO L93 Difference]: Finished difference Result 6163 states and 6716 transitions. [2023-11-06 22:03:00,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:03:00,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 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 188 [2023-11-06 22:03:00,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:00,523 INFO L225 Difference]: With dead ends: 6163 [2023-11-06 22:03:00,523 INFO L226 Difference]: Without dead ends: 3148 [2023-11-06 22:03:00,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:03:00,528 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 127 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:00,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 29 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:03:00,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2023-11-06 22:03:00,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 2755. [2023-11-06 22:03:00,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2755 states, 2754 states have (on average 1.0758896151053015) internal successors, (2963), 2754 states have internal predecessors, (2963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:00,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 2963 transitions. [2023-11-06 22:03:00,608 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 2963 transitions. Word has length 188 [2023-11-06 22:03:00,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:00,609 INFO L495 AbstractCegarLoop]: Abstraction has 2755 states and 2963 transitions. [2023-11-06 22:03:00,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:00,610 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 2963 transitions. [2023-11-06 22:03:00,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-11-06 22:03:00,618 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:00,619 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:00,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:00,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:00,826 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:03:00,827 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:00,827 INFO L85 PathProgramCache]: Analyzing trace with hash -158999246, now seen corresponding path program 1 times [2023-11-06 22:03:00,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:00,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27184906] [2023-11-06 22:03:00,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:00,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:01,279 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 157 proven. 10 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-06 22:03:01,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:01,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27184906] [2023-11-06 22:03:01,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27184906] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:03:01,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170179443] [2023-11-06 22:03:01,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:01,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:01,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:03:01,283 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:03:01,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:03:01,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:01,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:03:01,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:01,623 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-06 22:03:01,623 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:03:01,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170179443] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:01,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:03:01,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-11-06 22:03:01,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851577305] [2023-11-06 22:03:01,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:01,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:03:01,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:01,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:03:01,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:03:01,626 INFO L87 Difference]: Start difference. First operand 2755 states and 2963 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:02,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:02,030 INFO L93 Difference]: Finished difference Result 5375 states and 5777 transitions. [2023-11-06 22:03:02,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:03:02,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 239 [2023-11-06 22:03:02,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:02,032 INFO L225 Difference]: With dead ends: 5375 [2023-11-06 22:03:02,032 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 22:03:02,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:03:02,037 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 106 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:02,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 176 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:03:02,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 22:03:02,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 22:03:02,038 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) [2023-11-06 22:03:02,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 22:03:02,038 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 239 [2023-11-06 22:03:02,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:02,039 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:03:02,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:02,039 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:03:02,039 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 22:03:02,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:03:02,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:02,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-06 22:03:02,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 22:03:03,277 INFO L899 garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed. [2023-11-06 22:03:03,277 INFO L899 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2023-11-06 22:03:03,277 INFO L899 garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed. [2023-11-06 22:03:03,277 INFO L899 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2023-11-06 22:03:03,277 INFO L899 garLoopResultBuilder]: For program point L432(line 432) no Hoare annotation was computed. [2023-11-06 22:03:03,278 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2023-11-06 22:03:03,278 INFO L899 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2023-11-06 22:03:03,278 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2023-11-06 22:03:03,278 INFO L899 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,278 INFO L899 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,278 INFO L899 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,278 INFO L899 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,278 INFO L899 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2023-11-06 22:03:03,278 INFO L899 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,278 INFO L899 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,279 INFO L899 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2023-11-06 22:03:03,279 INFO L899 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2023-11-06 22:03:03,279 INFO L899 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2023-11-06 22:03:03,279 INFO L899 garLoopResultBuilder]: For program point L534(line 534) no Hoare annotation was computed. [2023-11-06 22:03:03,279 INFO L899 garLoopResultBuilder]: For program point L501(line 501) no Hoare annotation was computed. [2023-11-06 22:03:03,279 INFO L899 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2023-11-06 22:03:03,279 INFO L899 garLoopResultBuilder]: For program point L435(line 435) no Hoare annotation was computed. [2023-11-06 22:03:03,279 INFO L899 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2023-11-06 22:03:03,279 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2023-11-06 22:03:03,279 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2023-11-06 22:03:03,280 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2023-11-06 22:03:03,282 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2023-11-06 22:03:03,282 INFO L899 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,282 INFO L899 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,283 INFO L899 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,284 INFO L899 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,285 INFO L899 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,286 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2023-11-06 22:03:03,286 INFO L899 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,286 INFO L899 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2023-11-06 22:03:03,286 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2023-11-06 22:03:03,286 INFO L899 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2023-11-06 22:03:03,286 INFO L899 garLoopResultBuilder]: For program point L537(line 537) no Hoare annotation was computed. [2023-11-06 22:03:03,286 INFO L899 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2023-11-06 22:03:03,287 INFO L899 garLoopResultBuilder]: For program point L471(line 471) no Hoare annotation was computed. [2023-11-06 22:03:03,287 INFO L899 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2023-11-06 22:03:03,287 INFO L899 garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed. [2023-11-06 22:03:03,287 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2023-11-06 22:03:03,288 INFO L899 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2023-11-06 22:03:03,288 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2023-11-06 22:03:03,288 INFO L899 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2023-11-06 22:03:03,288 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2023-11-06 22:03:03,288 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2023-11-06 22:03:03,288 INFO L899 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,288 INFO L899 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,289 INFO L899 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,289 INFO L899 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,289 INFO L899 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,289 INFO L899 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,289 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2023-11-06 22:03:03,290 INFO L899 garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed. [2023-11-06 22:03:03,290 INFO L899 garLoopResultBuilder]: For program point L540(line 540) no Hoare annotation was computed. [2023-11-06 22:03:03,290 INFO L899 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2023-11-06 22:03:03,291 INFO L899 garLoopResultBuilder]: For program point L474(line 474) no Hoare annotation was computed. [2023-11-06 22:03:03,291 INFO L899 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2023-11-06 22:03:03,291 INFO L899 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2023-11-06 22:03:03,291 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2023-11-06 22:03:03,291 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2023-11-06 22:03:03,291 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2023-11-06 22:03:03,292 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2023-11-06 22:03:03,292 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2023-11-06 22:03:03,292 INFO L899 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,292 INFO L899 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,292 INFO L899 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,292 INFO L899 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,292 INFO L899 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,293 INFO L899 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,293 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2023-11-06 22:03:03,293 INFO L899 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2023-11-06 22:03:03,293 INFO L899 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2023-11-06 22:03:03,293 INFO L899 garLoopResultBuilder]: For program point L543(line 543) no Hoare annotation was computed. [2023-11-06 22:03:03,293 INFO L899 garLoopResultBuilder]: For program point L510(line 510) no Hoare annotation was computed. [2023-11-06 22:03:03,294 INFO L899 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2023-11-06 22:03:03,294 INFO L899 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2023-11-06 22:03:03,294 INFO L899 garLoopResultBuilder]: For program point L411(line 411) no Hoare annotation was computed. [2023-11-06 22:03:03,294 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2023-11-06 22:03:03,294 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2023-11-06 22:03:03,294 INFO L899 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,294 INFO L899 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,295 INFO L899 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,295 INFO L899 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,295 INFO L899 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,295 INFO L899 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,295 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2023-11-06 22:03:03,298 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2023-11-06 22:03:03,298 INFO L899 garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed. [2023-11-06 22:03:03,298 INFO L899 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2023-11-06 22:03:03,298 INFO L899 garLoopResultBuilder]: For program point L513(line 513) no Hoare annotation was computed. [2023-11-06 22:03:03,298 INFO L899 garLoopResultBuilder]: For program point L480(line 480) no Hoare annotation was computed. [2023-11-06 22:03:03,299 INFO L899 garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed. [2023-11-06 22:03:03,299 INFO L899 garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed. [2023-11-06 22:03:03,300 INFO L899 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2023-11-06 22:03:03,300 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2023-11-06 22:03:03,300 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2023-11-06 22:03:03,300 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2023-11-06 22:03:03,300 INFO L899 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2023-11-06 22:03:03,300 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2023-11-06 22:03:03,300 INFO L899 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2023-11-06 22:03:03,301 INFO L899 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,301 INFO L899 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,301 INFO L899 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,301 INFO L899 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,301 INFO L899 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,301 INFO L899 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2023-11-06 22:03:03,302 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2023-11-06 22:03:03,302 INFO L899 garLoopResultBuilder]: For program point L582(line 582) no Hoare annotation was computed. [2023-11-06 22:03:03,302 INFO L899 garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed. [2023-11-06 22:03:03,302 INFO L899 garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed. [2023-11-06 22:03:03,302 INFO L899 garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed. [2023-11-06 22:03:03,302 INFO L899 garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed. [2023-11-06 22:03:03,302 INFO L899 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2023-11-06 22:03:03,303 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2023-11-06 22:03:03,303 INFO L899 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,303 INFO L899 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,303 INFO L899 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,303 INFO L899 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,303 INFO L899 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,304 INFO L899 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2023-11-06 22:03:03,304 INFO L899 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2023-11-06 22:03:03,304 INFO L899 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2023-11-06 22:03:03,304 INFO L899 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2023-11-06 22:03:03,304 INFO L899 garLoopResultBuilder]: For program point L453(line 453) no Hoare annotation was computed. [2023-11-06 22:03:03,304 INFO L899 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2023-11-06 22:03:03,304 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2023-11-06 22:03:03,305 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2023-11-06 22:03:03,305 INFO L899 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2023-11-06 22:03:03,305 INFO L899 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2023-11-06 22:03:03,305 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2023-11-06 22:03:03,305 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2023-11-06 22:03:03,305 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 22:03:03,306 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2023-11-06 22:03:03,306 INFO L902 garLoopResultBuilder]: At program point L587(lines 587 604) the Hoare annotation is: true [2023-11-06 22:03:03,306 INFO L899 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,306 INFO L899 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,306 INFO L899 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,306 INFO L899 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,307 INFO L899 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,307 INFO L899 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2023-11-06 22:03:03,307 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2023-11-06 22:03:03,307 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2023-11-06 22:03:03,307 INFO L899 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2023-11-06 22:03:03,307 INFO L899 garLoopResultBuilder]: For program point L522(line 522) no Hoare annotation was computed. [2023-11-06 22:03:03,308 INFO L899 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2023-11-06 22:03:03,308 INFO L899 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2023-11-06 22:03:03,308 INFO L899 garLoopResultBuilder]: For program point L423(line 423) no Hoare annotation was computed. [2023-11-06 22:03:03,308 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2023-11-06 22:03:03,308 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 22:03:03,308 INFO L899 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,308 INFO L899 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,309 INFO L899 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,309 INFO L899 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,309 INFO L899 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2023-11-06 22:03:03,309 INFO L899 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,309 INFO L899 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2023-11-06 22:03:03,309 INFO L899 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2023-11-06 22:03:03,309 INFO L899 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2023-11-06 22:03:03,310 INFO L899 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2023-11-06 22:03:03,310 INFO L899 garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed. [2023-11-06 22:03:03,310 INFO L899 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2023-11-06 22:03:03,310 INFO L899 garLoopResultBuilder]: For program point L426(line 426) no Hoare annotation was computed. [2023-11-06 22:03:03,310 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 22:03:03,310 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2023-11-06 22:03:03,311 INFO L899 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2023-11-06 22:03:03,311 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2023-11-06 22:03:03,311 INFO L899 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2023-11-06 22:03:03,311 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2023-11-06 22:03:03,311 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2023-11-06 22:03:03,311 INFO L899 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,314 INFO L895 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse6 (<= 14 ~a8~0)) (.cse7 (= ~a21~0 1)) (.cse2 (= ~a7~0 0)) (.cse8 (<= 15 ~a8~0)) (.cse4 (<= ~a16~0 4)) (.cse1 (<= ~a17~0 0)) (.cse0 (<= ~a8~0 13)) (.cse9 (<= ~a21~0 0)) (.cse3 (= ~a17~0 1)) (.cse5 (= ~a20~0 1))) (or (and .cse0 .cse1 .cse2 (<= ~a16~0 5)) (and .cse0 .cse3 .cse4 .cse5) (and (<= 5 ~a16~0) .cse1 .cse6) (and .cse7 .cse3 .cse8) (and .cse7 .cse2 .cse3 .cse4 .cse5) (and .cse1 .cse6 .cse2) (and .cse0 .cse7 .cse2 .cse3) (and .cse1 .cse8) (and .cse0 .cse9 .cse4) (and (not .cse5) .cse1 .cse4) (and .cse0 .cse9 .cse1 .cse5) (and .cse0 .cse9 .cse3 .cse5))) [2023-11-06 22:03:03,314 INFO L899 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,314 INFO L899 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,314 INFO L899 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,314 INFO L899 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,315 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2023-11-06 22:03:03,315 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 22:03:03,316 INFO L895 garLoopResultBuilder]: At program point calculate_output_returnLabel#1(lines 40 585) the Hoare annotation is: (let ((.cse6 (<= 14 ~a8~0)) (.cse7 (= ~a21~0 1)) (.cse2 (= ~a7~0 0)) (.cse8 (<= 15 ~a8~0)) (.cse4 (<= ~a16~0 4)) (.cse1 (<= ~a17~0 0)) (.cse0 (<= ~a8~0 13)) (.cse9 (<= ~a21~0 0)) (.cse3 (= ~a17~0 1)) (.cse5 (= ~a20~0 1))) (or (and .cse0 .cse1 .cse2 (<= ~a16~0 5)) (and .cse0 .cse3 .cse4 .cse5) (and (<= 5 ~a16~0) .cse1 .cse6) (and .cse7 .cse3 .cse8) (and .cse7 .cse2 .cse3 .cse4 .cse5) (and .cse1 .cse6 .cse2) (and .cse0 .cse7 .cse2 .cse3) (and .cse1 .cse8) (and .cse0 .cse9 .cse4) (and (not .cse5) .cse1 .cse4) (and .cse0 .cse9 .cse1 .cse5) (and .cse0 .cse9 .cse3 .cse5))) [2023-11-06 22:03:03,316 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 468) no Hoare annotation was computed. [2023-11-06 22:03:03,317 INFO L899 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2023-11-06 22:03:03,317 INFO L899 garLoopResultBuilder]: For program point L528(line 528) no Hoare annotation was computed. [2023-11-06 22:03:03,317 INFO L899 garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed. [2023-11-06 22:03:03,317 INFO L899 garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed. [2023-11-06 22:03:03,317 INFO L899 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2023-11-06 22:03:03,317 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2023-11-06 22:03:03,318 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2023-11-06 22:03:03,318 INFO L899 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,318 INFO L899 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,318 INFO L899 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,318 INFO L899 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,318 INFO L899 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2023-11-06 22:03:03,318 INFO L899 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2023-11-06 22:03:03,319 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2023-11-06 22:03:03,319 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2023-11-06 22:03:03,319 INFO L899 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2023-11-06 22:03:03,324 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:03,326 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:03:03,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:03:03 BoogieIcfgContainer [2023-11-06 22:03:03,364 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:03:03,365 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:03:03,365 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:03:03,365 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:03:03,366 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:02:45" (3/4) ... [2023-11-06 22:03:03,368 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:03:03,400 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-06 22:03:03,401 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:03:03,403 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:03:03,404 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:03:03,593 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:03:03,593 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:03:03,593 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:03:03,594 INFO L158 Benchmark]: Toolchain (without parser) took 20306.90ms. Allocated memory was 111.1MB in the beginning and 362.8MB in the end (delta: 251.7MB). Free memory was 76.9MB in the beginning and 197.5MB in the end (delta: -120.6MB). Peak memory consumption was 132.2MB. Max. memory is 16.1GB. [2023-11-06 22:03:03,594 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:03:03,595 INFO L158 Benchmark]: CACSL2BoogieTranslator took 616.93ms. Allocated memory is still 111.1MB. Free memory was 76.6MB in the beginning and 48.8MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-06 22:03:03,596 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.01ms. Allocated memory is still 111.1MB. Free memory was 48.8MB in the beginning and 42.9MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-06 22:03:03,596 INFO L158 Benchmark]: Boogie Preprocessor took 127.85ms. Allocated memory is still 111.1MB. Free memory was 42.9MB in the beginning and 79.0MB in the end (delta: -36.1MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2023-11-06 22:03:03,597 INFO L158 Benchmark]: RCFGBuilder took 1494.04ms. Allocated memory was 111.1MB in the beginning and 172.0MB in the end (delta: 60.8MB). Free memory was 78.9MB in the beginning and 124.1MB in the end (delta: -45.2MB). Peak memory consumption was 64.5MB. Max. memory is 16.1GB. [2023-11-06 22:03:03,598 INFO L158 Benchmark]: TraceAbstraction took 17747.93ms. Allocated memory was 172.0MB in the beginning and 362.8MB in the end (delta: 190.8MB). Free memory was 123.1MB in the beginning and 209.1MB in the end (delta: -86.0MB). Peak memory consumption was 200.3MB. Max. memory is 16.1GB. [2023-11-06 22:03:03,598 INFO L158 Benchmark]: Witness Printer took 228.37ms. Allocated memory is still 362.8MB. Free memory was 209.1MB in the beginning and 197.5MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:03:03,605 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 616.93ms. Allocated memory is still 111.1MB. Free memory was 76.6MB in the beginning and 48.8MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.01ms. Allocated memory is still 111.1MB. Free memory was 48.8MB in the beginning and 42.9MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 127.85ms. Allocated memory is still 111.1MB. Free memory was 42.9MB in the beginning and 79.0MB in the end (delta: -36.1MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1494.04ms. Allocated memory was 111.1MB in the beginning and 172.0MB in the end (delta: 60.8MB). Free memory was 78.9MB in the beginning and 124.1MB in the end (delta: -45.2MB). Peak memory consumption was 64.5MB. Max. memory is 16.1GB. * TraceAbstraction took 17747.93ms. Allocated memory was 172.0MB in the beginning and 362.8MB in the end (delta: 190.8MB). Free memory was 123.1MB in the beginning and 209.1MB in the end (delta: -86.0MB). Peak memory consumption was 200.3MB. Max. memory is 16.1GB. * Witness Printer took 228.37ms. Allocated memory is still 362.8MB. Free memory was 209.1MB in the beginning and 197.5MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. 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: 468]: 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, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.6s, OverallIterations: 14, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1676 SdHoareTripleChecker+Valid, 6.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1676 mSDsluCounter, 1260 SdHoareTripleChecker+Invalid, 5.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 77 mSDsCounter, 615 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4646 IncrementalHoareTripleChecker+Invalid, 5261 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 615 mSolverCounterUnsat, 1183 mSDtfsCounter, 4646 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1079 GetRequests, 1052 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3148occurred in iteration=11, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 14 MinimizatonAttempts, 2489 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 53 NumberOfFragments, 281 HoareAnnotationTreeSize, 3 FomulaSimplifications, 606 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1094 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 3063 NumberOfCodeBlocks, 3063 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 3043 ConstructedInterpolants, 0 QuantifiedInterpolants, 5794 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2174 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 20 InterpolantComputations, 14 PerfectInterpolantSequences, 2239/2302 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: 40]: Loop Invariant Derived loop invariant: (((((((((((((((a8 <= 13) && (a17 <= 0)) && (a7 == 0)) && (a16 <= 5)) || ((((a8 <= 13) && (a17 == 1)) && (a16 <= 4)) && (a20 == 1))) || (((5 <= a16) && (a17 <= 0)) && (14 <= a8))) || (((a21 == 1) && (a17 == 1)) && (15 <= a8))) || (((((a21 == 1) && (a7 == 0)) && (a17 == 1)) && (a16 <= 4)) && (a20 == 1))) || (((a17 <= 0) && (14 <= a8)) && (a7 == 0))) || ((((a8 <= 13) && (a21 == 1)) && (a7 == 0)) && (a17 == 1))) || ((a17 <= 0) && (15 <= a8))) || (((a8 <= 13) && (a21 <= 0)) && (a16 <= 4))) || ((!((a20 == 1)) && (a17 <= 0)) && (a16 <= 4))) || ((((a8 <= 13) && (a21 <= 0)) && (a17 <= 0)) && (a20 == 1))) || ((((a8 <= 13) && (a21 <= 0)) && (a17 == 1)) && (a20 == 1))) - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: (((((((((((((((a8 <= 13) && (a17 <= 0)) && (a7 == 0)) && (a16 <= 5)) || ((((a8 <= 13) && (a17 == 1)) && (a16 <= 4)) && (a20 == 1))) || (((5 <= a16) && (a17 <= 0)) && (14 <= a8))) || (((a21 == 1) && (a17 == 1)) && (15 <= a8))) || (((((a21 == 1) && (a7 == 0)) && (a17 == 1)) && (a16 <= 4)) && (a20 == 1))) || (((a17 <= 0) && (14 <= a8)) && (a7 == 0))) || ((((a8 <= 13) && (a21 == 1)) && (a7 == 0)) && (a17 == 1))) || ((a17 <= 0) && (15 <= a8))) || (((a8 <= 13) && (a21 <= 0)) && (a16 <= 4))) || ((!((a20 == 1)) && (a17 <= 0)) && (a16 <= 4))) || ((((a8 <= 13) && (a21 <= 0)) && (a17 <= 0)) && (a20 == 1))) || ((((a8 <= 13) && (a21 <= 0)) && (a17 == 1)) && (a20 == 1))) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-06 22:03:03,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4362bea8-5efa-4f72-891a-6d1c119f302b/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE