./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label46.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/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_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label46.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/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_b584b415-378f-440c-931a-7bee00976b4d/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 454a0d8e81468f46c7e33771197733cd10e6f7a6ab6cc63470839978aa4b6ed5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:07:39,911 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:07:40,030 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 23:07:40,036 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:07:40,037 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:07:40,079 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:07:40,080 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:07:40,081 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:07:40,082 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:07:40,088 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:07:40,090 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:07:40,090 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:07:40,091 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:07:40,093 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:07:40,093 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:07:40,094 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:07:40,104 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:07:40,105 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:07:40,106 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:07:40,106 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:07:40,106 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:07:40,107 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:07:40,108 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:07:40,108 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:07:40,108 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:07:40,109 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:07:40,109 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:07:40,110 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:07:40,110 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:07:40,111 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:07:40,111 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:07:40,112 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:07:40,112 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:07:40,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:07:40,113 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:07:40,113 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:07:40,113 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:07:40,114 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:07:40,114 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:07:40,114 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_b584b415-378f-440c-931a-7bee00976b4d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 454a0d8e81468f46c7e33771197733cd10e6f7a6ab6cc63470839978aa4b6ed5 [2023-11-06 23:07:40,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:07:40,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:07:40,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:07:40,435 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:07:40,436 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:07:40,437 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/eca-rers2012/Problem14_label46.c [2023-11-06 23:07:43,680 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:07:44,103 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:07:44,104 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/sv-benchmarks/c/eca-rers2012/Problem14_label46.c [2023-11-06 23:07:44,123 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/data/9fe96d30e/03a23cccf40348498d03b35b23e14408/FLAG2b538e264 [2023-11-06 23:07:44,141 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/data/9fe96d30e/03a23cccf40348498d03b35b23e14408 [2023-11-06 23:07:44,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:07:44,146 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:07:44,148 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:07:44,149 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:07:44,155 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:07:44,156 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:07:44" (1/1) ... [2023-11-06 23:07:44,157 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@89a6d3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:44, skipping insertion in model container [2023-11-06 23:07:44,158 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:07:44" (1/1) ... [2023-11-06 23:07:44,221 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:07:44,468 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_b584b415-378f-440c-931a-7bee00976b4d/sv-benchmarks/c/eca-rers2012/Problem14_label46.c[4146,4159] [2023-11-06 23:07:44,732 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:07:44,754 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:07:44,780 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_b584b415-378f-440c-931a-7bee00976b4d/sv-benchmarks/c/eca-rers2012/Problem14_label46.c[4146,4159] [2023-11-06 23:07:44,908 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:07:44,940 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:07:44,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:44 WrapperNode [2023-11-06 23:07:44,941 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:07:44,943 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:07:44,943 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:07:44,943 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:07:44,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:44" (1/1) ... [2023-11-06 23:07:44,975 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:44" (1/1) ... [2023-11-06 23:07:45,073 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 859 [2023-11-06 23:07:45,074 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:07:45,075 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:07:45,075 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:07:45,075 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:07:45,085 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:44" (1/1) ... [2023-11-06 23:07:45,086 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:44" (1/1) ... [2023-11-06 23:07:45,092 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:44" (1/1) ... [2023-11-06 23:07:45,093 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:44" (1/1) ... [2023-11-06 23:07:45,154 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:44" (1/1) ... [2023-11-06 23:07:45,172 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:44" (1/1) ... [2023-11-06 23:07:45,177 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:44" (1/1) ... [2023-11-06 23:07:45,199 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:44" (1/1) ... [2023-11-06 23:07:45,222 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:07:45,223 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:07:45,224 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:07:45,224 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:07:45,225 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:44" (1/1) ... [2023-11-06 23:07:45,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:07:45,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:07:45,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:07:45,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:07:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:07:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:07:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:07:45,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:07:45,437 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:07:45,442 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:07:47,167 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:07:47,184 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:07:47,184 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 23:07:47,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:07:47 BoogieIcfgContainer [2023-11-06 23:07:47,189 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:07:47,194 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:07:47,194 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:07:47,199 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:07:47,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:07:44" (1/3) ... [2023-11-06 23:07:47,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa4fc10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:07:47, skipping insertion in model container [2023-11-06 23:07:47,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:44" (2/3) ... [2023-11-06 23:07:47,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa4fc10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:07:47, skipping insertion in model container [2023-11-06 23:07:47,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:07:47" (3/3) ... [2023-11-06 23:07:47,207 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label46.c [2023-11-06 23:07:47,234 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:07:47,234 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 23:07:47,333 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:07:47,343 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;@f526819, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:07:47,344 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 23:07:47,353 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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 23:07:47,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-06 23:07:47,366 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:07:47,367 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] [2023-11-06 23:07:47,368 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:07:47,378 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:07:47,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1453294289, now seen corresponding path program 1 times [2023-11-06 23:07:47,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:07:47,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139548871] [2023-11-06 23:07:47,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:07:47,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:07:47,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:07:48,039 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 23:07:48,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:07:48,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139548871] [2023-11-06 23:07:48,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139548871] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:07:48,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:07:48,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:07:48,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898567383] [2023-11-06 23:07:48,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:07:48,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:07:48,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:07:48,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:07:48,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:07:48,105 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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 23:07:50,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:07:50,273 INFO L93 Difference]: Finished difference Result 852 states and 1560 transitions. [2023-11-06 23:07:50,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:07:50,276 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2023-11-06 23:07:50,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:07:50,302 INFO L225 Difference]: With dead ends: 852 [2023-11-06 23:07:50,305 INFO L226 Difference]: Without dead ends: 538 [2023-11-06 23:07:50,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:07:50,319 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 556 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:07:50,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 44 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [419 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-06 23:07:50,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2023-11-06 23:07:50,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2023-11-06 23:07:50,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.4487895716945995) internal successors, (778), 537 states have internal predecessors, (778), 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 23:07:50,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2023-11-06 23:07:50,429 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 39 [2023-11-06 23:07:50,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:07:50,430 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2023-11-06 23:07:50,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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 23:07:50,431 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2023-11-06 23:07:50,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-11-06 23:07:50,439 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:07:50,440 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 23:07:50,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 23:07:50,441 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:07:50,441 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:07:50,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1976295897, now seen corresponding path program 1 times [2023-11-06 23:07:50,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:07:50,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620487015] [2023-11-06 23:07:50,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:07:50,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:07:50,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:07:50,786 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-06 23:07:50,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:07:50,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620487015] [2023-11-06 23:07:50,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620487015] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:07:50,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:07:50,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:07:50,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383349278] [2023-11-06 23:07:50,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:07:50,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:07:50,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:07:50,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:07:50,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:07:50,793 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 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 23:07:51,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:07:51,816 INFO L93 Difference]: Finished difference Result 1074 states and 1656 transitions. [2023-11-06 23:07:51,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:07:51,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 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 187 [2023-11-06 23:07:51,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:07:51,829 INFO L225 Difference]: With dead ends: 1074 [2023-11-06 23:07:51,830 INFO L226 Difference]: Without dead ends: 716 [2023-11-06 23:07:51,838 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 23:07:51,842 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 125 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:07:51,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 57 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-06 23:07:51,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2023-11-06 23:07:51,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2023-11-06 23:07:51,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.353846153846154) internal successors, (968), 715 states have internal predecessors, (968), 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 23:07:51,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2023-11-06 23:07:51,910 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 187 [2023-11-06 23:07:51,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:07:51,911 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2023-11-06 23:07:51,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 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 23:07:51,911 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2023-11-06 23:07:51,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-11-06 23:07:51,918 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:07:51,918 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 23:07:51,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 23:07:51,919 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:07:51,919 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:07:51,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1989656586, now seen corresponding path program 1 times [2023-11-06 23:07:51,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:07:51,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135349352] [2023-11-06 23:07:51,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:07:51,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:07:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:07:52,493 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-06 23:07:52,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:07:52,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135349352] [2023-11-06 23:07:52,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135349352] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:07:52,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:07:52,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:07:52,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865008078] [2023-11-06 23:07:52,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:07:52,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:07:52,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:07:52,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:07:52,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:07:52,502 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 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 23:07:53,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:07:53,608 INFO L93 Difference]: Finished difference Result 1637 states and 2268 transitions. [2023-11-06 23:07:53,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:07:53,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 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 210 [2023-11-06 23:07:53,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:07:53,616 INFO L225 Difference]: With dead ends: 1637 [2023-11-06 23:07:53,617 INFO L226 Difference]: Without dead ends: 1072 [2023-11-06 23:07:53,618 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 23:07:53,619 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 110 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:07:53,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 113 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-06 23:07:53,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2023-11-06 23:07:53,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 894. [2023-11-06 23:07:53,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.1724524076147815) internal successors, (1047), 893 states have internal predecessors, (1047), 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 23:07:53,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1047 transitions. [2023-11-06 23:07:53,648 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1047 transitions. Word has length 210 [2023-11-06 23:07:53,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:07:53,649 INFO L495 AbstractCegarLoop]: Abstraction has 894 states and 1047 transitions. [2023-11-06 23:07:53,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 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 23:07:53,649 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1047 transitions. [2023-11-06 23:07:53,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2023-11-06 23:07:53,663 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:07:53,664 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:07:53,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 23:07:53,665 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:07:53,672 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:07:53,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1545432834, now seen corresponding path program 1 times [2023-11-06 23:07:53,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:07:53,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022895456] [2023-11-06 23:07:53,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:07:53,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:07:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:07:54,649 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 174 proven. 130 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-11-06 23:07:54,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:07:54,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022895456] [2023-11-06 23:07:54,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022895456] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:07:54,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992504069] [2023-11-06 23:07:54,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:07:54,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:07:54,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:07:54,660 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:07:54,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 23:07:54,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:07:54,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 23:07:54,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:07:55,065 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-06 23:07:55,066 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:07:55,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992504069] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:07:55,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 23:07:55,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-11-06 23:07:55,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340906538] [2023-11-06 23:07:55,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:07:55,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:07:55,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:07:55,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:07:55,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:07:55,070 INFO L87 Difference]: Start difference. First operand 894 states and 1047 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 23:07:55,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:07:55,904 INFO L93 Difference]: Finished difference Result 2320 states and 2778 transitions. [2023-11-06 23:07:55,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:07:55,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 341 [2023-11-06 23:07:55,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:07:55,922 INFO L225 Difference]: With dead ends: 2320 [2023-11-06 23:07:55,922 INFO L226 Difference]: Without dead ends: 1606 [2023-11-06 23:07:55,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:07:55,932 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 142 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-06 23:07:55,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 265 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-06 23:07:55,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2023-11-06 23:07:55,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1428. [2023-11-06 23:07:55,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1427 states have (on average 1.1401541695865451) internal successors, (1627), 1427 states have internal predecessors, (1627), 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 23:07:56,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1627 transitions. [2023-11-06 23:07:56,004 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1627 transitions. Word has length 341 [2023-11-06 23:07:56,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:07:56,007 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1627 transitions. [2023-11-06 23:07:56,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 23:07:56,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1627 transitions. [2023-11-06 23:07:56,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2023-11-06 23:07:56,016 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:07:56,016 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:07:56,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 23:07:56,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:07:56,224 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:07:56,224 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:07:56,224 INFO L85 PathProgramCache]: Analyzing trace with hash 560605277, now seen corresponding path program 1 times [2023-11-06 23:07:56,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:07:56,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998360058] [2023-11-06 23:07:56,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:07:56,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:07:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:07:57,067 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 565 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2023-11-06 23:07:57,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:07:57,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998360058] [2023-11-06 23:07:57,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998360058] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:07:57,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:07:57,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:07:57,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678860227] [2023-11-06 23:07:57,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:07:57,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:07:57,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:07:57,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:07:57,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:07:57,071 INFO L87 Difference]: Start difference. First operand 1428 states and 1627 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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 23:07:57,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:07:57,753 INFO L93 Difference]: Finished difference Result 3210 states and 3757 transitions. [2023-11-06 23:07:57,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:07:57,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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 440 [2023-11-06 23:07:57,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:07:57,767 INFO L225 Difference]: With dead ends: 3210 [2023-11-06 23:07:57,767 INFO L226 Difference]: Without dead ends: 1962 [2023-11-06 23:07:57,770 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 23:07:57,770 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 72 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 23:07:57,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 77 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 23:07:57,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2023-11-06 23:07:57,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2023-11-06 23:07:57,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.134043746494672) internal successors, (2022), 1783 states have internal predecessors, (2022), 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 23:07:57,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2022 transitions. [2023-11-06 23:07:57,822 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2022 transitions. Word has length 440 [2023-11-06 23:07:57,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:07:57,823 INFO L495 AbstractCegarLoop]: Abstraction has 1784 states and 2022 transitions. [2023-11-06 23:07:57,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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 23:07:57,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2022 transitions. [2023-11-06 23:07:57,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2023-11-06 23:07:57,833 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:07:57,835 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-06 23:07:57,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 23:07:57,836 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:07:57,837 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:07:57,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1453668839, now seen corresponding path program 1 times [2023-11-06 23:07:57,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:07:57,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551967865] [2023-11-06 23:07:57,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:07:57,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:07:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:07:58,622 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 554 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-06 23:07:58,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:07:58,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551967865] [2023-11-06 23:07:58,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551967865] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:07:58,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:07:58,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:07:58,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264318701] [2023-11-06 23:07:58,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:07:58,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:07:58,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:07:58,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:07:58,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:07:58,629 INFO L87 Difference]: Start difference. First operand 1784 states and 2022 transitions. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 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 23:07:59,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:07:59,682 INFO L93 Difference]: Finished difference Result 3744 states and 4238 transitions. [2023-11-06 23:07:59,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:07:59,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 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 464 [2023-11-06 23:07:59,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:07:59,697 INFO L225 Difference]: With dead ends: 3744 [2023-11-06 23:07:59,699 INFO L226 Difference]: Without dead ends: 2140 [2023-11-06 23:07:59,702 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 23:07:59,703 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 124 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:07:59,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 90 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-06 23:07:59,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2023-11-06 23:07:59,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2023-11-06 23:07:59,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.11781206171108) internal successors, (2391), 2139 states have internal predecessors, (2391), 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 23:07:59,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2391 transitions. [2023-11-06 23:07:59,770 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2391 transitions. Word has length 464 [2023-11-06 23:07:59,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:07:59,771 INFO L495 AbstractCegarLoop]: Abstraction has 2140 states and 2391 transitions. [2023-11-06 23:07:59,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 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 23:07:59,771 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2391 transitions. [2023-11-06 23:07:59,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2023-11-06 23:07:59,783 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:07:59,784 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:07:59,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 23:07:59,784 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:07:59,785 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:07:59,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1503435120, now seen corresponding path program 1 times [2023-11-06 23:07:59,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:07:59,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606839500] [2023-11-06 23:07:59,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:07:59,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:07:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:00,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 701 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2023-11-06 23:08:00,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:00,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606839500] [2023-11-06 23:08:00,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606839500] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:00,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:00,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:08:00,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192532810] [2023-11-06 23:08:00,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:00,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:08:00,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:00,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:08:00,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:08:00,463 INFO L87 Difference]: Start difference. First operand 2140 states and 2391 transitions. Second operand has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 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 23:08:01,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:01,396 INFO L93 Difference]: Finished difference Result 4336 states and 4849 transitions. [2023-11-06 23:08:01,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:08:01,397 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 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 520 [2023-11-06 23:08:01,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:01,413 INFO L225 Difference]: With dead ends: 4336 [2023-11-06 23:08:01,414 INFO L226 Difference]: Without dead ends: 2318 [2023-11-06 23:08:01,417 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 23:08:01,418 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 124 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:01,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 17 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-06 23:08:01,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2023-11-06 23:08:01,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2140. [2023-11-06 23:08:01,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.0855539971949508) internal successors, (2322), 2139 states have internal predecessors, (2322), 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 23:08:01,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2322 transitions. [2023-11-06 23:08:01,494 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2322 transitions. Word has length 520 [2023-11-06 23:08:01,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:01,495 INFO L495 AbstractCegarLoop]: Abstraction has 2140 states and 2322 transitions. [2023-11-06 23:08:01,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 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 23:08:01,496 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2322 transitions. [2023-11-06 23:08:01,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2023-11-06 23:08:01,513 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:01,514 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:01,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 23:08:01,515 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:01,515 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:01,516 INFO L85 PathProgramCache]: Analyzing trace with hash -145271439, now seen corresponding path program 2 times [2023-11-06 23:08:01,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:01,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681270866] [2023-11-06 23:08:01,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:01,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:02,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 779 proven. 11 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-11-06 23:08:02,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:02,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681270866] [2023-11-06 23:08:02,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681270866] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:08:02,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113718475] [2023-11-06 23:08:02,611 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 23:08:02,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:08:02,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:08:02,613 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:08:02,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 23:08:02,909 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 23:08:02,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 23:08:02,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:08:02,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:08:03,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 790 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-11-06 23:08:03,876 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:08:03,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [113718475] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:03,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 23:08:03,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-06 23:08:03,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222991978] [2023-11-06 23:08:03,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:03,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:08:03,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:03,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:08:03,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:08:03,880 INFO L87 Difference]: Start difference. First operand 2140 states and 2322 transitions. Second operand has 4 states, 4 states have (on average 75.5) internal successors, (302), 3 states have internal predecessors, (302), 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 23:08:04,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:04,919 INFO L93 Difference]: Finished difference Result 4990 states and 5475 transitions. [2023-11-06 23:08:04,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:08:04,920 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.5) internal successors, (302), 3 states have internal predecessors, (302), 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 546 [2023-11-06 23:08:04,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:04,937 INFO L225 Difference]: With dead ends: 4990 [2023-11-06 23:08:04,937 INFO L226 Difference]: Without dead ends: 3030 [2023-11-06 23:08:04,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 544 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:08:04,940 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 162 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:04,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 15 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-06 23:08:04,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2023-11-06 23:08:05,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2496. [2023-11-06 23:08:05,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.0789579158316633) internal successors, (2692), 2495 states have internal predecessors, (2692), 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 23:08:05,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2692 transitions. [2023-11-06 23:08:05,016 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2692 transitions. Word has length 546 [2023-11-06 23:08:05,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:05,017 INFO L495 AbstractCegarLoop]: Abstraction has 2496 states and 2692 transitions. [2023-11-06 23:08:05,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.5) internal successors, (302), 3 states have internal predecessors, (302), 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 23:08:05,017 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2692 transitions. [2023-11-06 23:08:05,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2023-11-06 23:08:05,033 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:05,033 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:05,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 23:08:05,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:08:05,244 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:05,244 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:05,245 INFO L85 PathProgramCache]: Analyzing trace with hash 823062922, now seen corresponding path program 1 times [2023-11-06 23:08:05,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:05,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622980465] [2023-11-06 23:08:05,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:05,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:05,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 792 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-11-06 23:08:05,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:05,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622980465] [2023-11-06 23:08:05,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622980465] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:05,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:05,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:08:05,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532798166] [2023-11-06 23:08:05,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:05,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:08:05,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:05,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:08:05,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:08:05,964 INFO L87 Difference]: Start difference. First operand 2496 states and 2692 transitions. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 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 23:08:06,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:06,713 INFO L93 Difference]: Finished difference Result 5702 states and 6216 transitions. [2023-11-06 23:08:06,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:08:06,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 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 553 [2023-11-06 23:08:06,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:06,765 INFO L225 Difference]: With dead ends: 5702 [2023-11-06 23:08:06,765 INFO L226 Difference]: Without dead ends: 3386 [2023-11-06 23:08:06,769 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 23:08:06,770 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 74 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:06,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 202 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 23:08:06,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2023-11-06 23:08:06,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3386. [2023-11-06 23:08:06,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 1.0768094534711965) internal successors, (3645), 3385 states have internal predecessors, (3645), 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 23:08:06,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3645 transitions. [2023-11-06 23:08:06,944 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3645 transitions. Word has length 553 [2023-11-06 23:08:06,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:06,949 INFO L495 AbstractCegarLoop]: Abstraction has 3386 states and 3645 transitions. [2023-11-06 23:08:06,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 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 23:08:06,950 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3645 transitions. [2023-11-06 23:08:06,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2023-11-06 23:08:06,960 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:06,962 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:06,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 23:08:06,962 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:06,963 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:06,963 INFO L85 PathProgramCache]: Analyzing trace with hash -2111047309, now seen corresponding path program 1 times [2023-11-06 23:08:06,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:06,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177189831] [2023-11-06 23:08:06,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:06,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:08,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 806 proven. 195 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2023-11-06 23:08:08,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:08,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177189831] [2023-11-06 23:08:08,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177189831] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:08:08,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532668242] [2023-11-06 23:08:08,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:08,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:08:08,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:08:08,302 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:08:08,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 23:08:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:08,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 755 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 23:08:08,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:08:08,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 959 trivial. 0 not checked. [2023-11-06 23:08:08,658 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:08:08,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532668242] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:08,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 23:08:08,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-11-06 23:08:08,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442716922] [2023-11-06 23:08:08,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:08,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:08:08,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:08,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:08:08,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:08:08,661 INFO L87 Difference]: Start difference. First operand 3386 states and 3645 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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 23:08:09,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:09,375 INFO L93 Difference]: Finished difference Result 7126 states and 7749 transitions. [2023-11-06 23:08:09,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:08:09,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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 598 [2023-11-06 23:08:09,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:09,402 INFO L225 Difference]: With dead ends: 7126 [2023-11-06 23:08:09,402 INFO L226 Difference]: Without dead ends: 3920 [2023-11-06 23:08:09,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 602 GetRequests, 597 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:08:09,407 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 142 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:09,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 235 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 23:08:09,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2023-11-06 23:08:09,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3742. [2023-11-06 23:08:09,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.079123229083133) internal successors, (4037), 3741 states have internal predecessors, (4037), 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 23:08:09,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4037 transitions. [2023-11-06 23:08:09,504 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4037 transitions. Word has length 598 [2023-11-06 23:08:09,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:09,506 INFO L495 AbstractCegarLoop]: Abstraction has 3742 states and 4037 transitions. [2023-11-06 23:08:09,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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 23:08:09,506 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4037 transitions. [2023-11-06 23:08:09,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 618 [2023-11-06 23:08:09,514 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:09,514 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:09,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 23:08:09,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-06 23:08:09,722 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:09,722 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:09,723 INFO L85 PathProgramCache]: Analyzing trace with hash -932781460, now seen corresponding path program 1 times [2023-11-06 23:08:09,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:09,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377358950] [2023-11-06 23:08:09,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:09,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:09,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:11,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 882 proven. 195 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2023-11-06 23:08:11,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:11,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377358950] [2023-11-06 23:08:11,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377358950] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:08:11,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850064838] [2023-11-06 23:08:11,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:11,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:08:11,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:08:11,172 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:08:11,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 23:08:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:11,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:08:11,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:08:12,102 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 550 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2023-11-06 23:08:12,102 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:08:12,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850064838] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:12,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 23:08:12,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-06 23:08:12,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251097501] [2023-11-06 23:08:12,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:12,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:08:12,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:12,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:08:12,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:08:12,106 INFO L87 Difference]: Start difference. First operand 3742 states and 4037 transitions. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 2 states have internal predecessors, (266), 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 23:08:12,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:12,723 INFO L93 Difference]: Finished difference Result 8016 states and 8636 transitions. [2023-11-06 23:08:12,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:08:12,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 2 states have internal predecessors, (266), 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 617 [2023-11-06 23:08:12,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:12,747 INFO L225 Difference]: With dead ends: 8016 [2023-11-06 23:08:12,747 INFO L226 Difference]: Without dead ends: 4454 [2023-11-06 23:08:12,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 616 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:08:12,752 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 27 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:12,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 50 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 23:08:12,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2023-11-06 23:08:12,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 3920. [2023-11-06 23:08:12,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 3919 states have (on average 1.0773156417453431) internal successors, (4222), 3919 states have internal predecessors, (4222), 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 23:08:12,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4222 transitions. [2023-11-06 23:08:12,871 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4222 transitions. Word has length 617 [2023-11-06 23:08:12,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:12,872 INFO L495 AbstractCegarLoop]: Abstraction has 3920 states and 4222 transitions. [2023-11-06 23:08:12,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 2 states have internal predecessors, (266), 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 23:08:12,873 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4222 transitions. [2023-11-06 23:08:12,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 640 [2023-11-06 23:08:12,880 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:12,881 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:12,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 23:08:13,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-06 23:08:13,088 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:13,088 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:13,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1940762816, now seen corresponding path program 1 times [2023-11-06 23:08:13,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:13,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049697344] [2023-11-06 23:08:13,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:13,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:13,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1224 backedges. 873 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-11-06 23:08:13,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:13,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049697344] [2023-11-06 23:08:13,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049697344] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:13,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:13,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:08:13,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786455426] [2023-11-06 23:08:13,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:13,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:08:13,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:13,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:08:13,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:08:13,627 INFO L87 Difference]: Start difference. First operand 3920 states and 4222 transitions. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 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 23:08:14,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:14,315 INFO L93 Difference]: Finished difference Result 9084 states and 9808 transitions. [2023-11-06 23:08:14,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:08:14,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 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 639 [2023-11-06 23:08:14,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:14,342 INFO L225 Difference]: With dead ends: 9084 [2023-11-06 23:08:14,342 INFO L226 Difference]: Without dead ends: 5344 [2023-11-06 23:08:14,347 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 23:08:14,348 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:14,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 51 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 23:08:14,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2023-11-06 23:08:14,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5344. [2023-11-06 23:08:14,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.0679393599101628) internal successors, (5706), 5343 states have internal predecessors, (5706), 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 23:08:14,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5706 transitions. [2023-11-06 23:08:14,542 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5706 transitions. Word has length 639 [2023-11-06 23:08:14,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:14,544 INFO L495 AbstractCegarLoop]: Abstraction has 5344 states and 5706 transitions. [2023-11-06 23:08:14,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 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 23:08:14,545 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5706 transitions. [2023-11-06 23:08:14,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 719 [2023-11-06 23:08:14,556 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:14,557 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:14,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 23:08:14,557 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:14,558 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:14,558 INFO L85 PathProgramCache]: Analyzing trace with hash 749754985, now seen corresponding path program 1 times [2023-11-06 23:08:14,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:14,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591267288] [2023-11-06 23:08:14,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:14,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:14,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:15,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2090 backedges. 1532 proven. 0 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2023-11-06 23:08:15,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:15,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591267288] [2023-11-06 23:08:15,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591267288] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:15,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:15,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:08:15,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034471082] [2023-11-06 23:08:15,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:15,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:08:15,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:15,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:08:15,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:08:15,418 INFO L87 Difference]: Start difference. First operand 5344 states and 5706 transitions. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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 23:08:16,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:16,014 INFO L93 Difference]: Finished difference Result 10508 states and 11231 transitions. [2023-11-06 23:08:16,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:08:16,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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 718 [2023-11-06 23:08:16,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:16,042 INFO L225 Difference]: With dead ends: 10508 [2023-11-06 23:08:16,047 INFO L226 Difference]: Without dead ends: 5344 [2023-11-06 23:08:16,053 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 23:08:16,054 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 103 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:16,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 242 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 23:08:16,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2023-11-06 23:08:16,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5166. [2023-11-06 23:08:16,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0648596321393997) internal successors, (5500), 5165 states have internal predecessors, (5500), 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 23:08:16,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5500 transitions. [2023-11-06 23:08:16,155 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5500 transitions. Word has length 718 [2023-11-06 23:08:16,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:16,156 INFO L495 AbstractCegarLoop]: Abstraction has 5166 states and 5500 transitions. [2023-11-06 23:08:16,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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 23:08:16,157 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5500 transitions. [2023-11-06 23:08:16,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2023-11-06 23:08:16,166 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:16,167 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 23:08:16,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 23:08:16,168 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:16,168 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:16,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1898901820, now seen corresponding path program 1 times [2023-11-06 23:08:16,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:16,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100213261] [2023-11-06 23:08:16,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:16,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:16,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:17,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1840 backedges. 1334 proven. 155 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-11-06 23:08:17,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:17,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100213261] [2023-11-06 23:08:17,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100213261] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:08:17,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530927065] [2023-11-06 23:08:17,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:17,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:08:17,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:08:17,061 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:08:17,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 23:08:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:17,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 978 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 23:08:17,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:08:17,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1840 backedges. 725 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2023-11-06 23:08:17,559 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:08:17,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530927065] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:17,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 23:08:17,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-11-06 23:08:17,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005262495] [2023-11-06 23:08:17,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:17,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:08:17,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:17,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:08:17,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:08:17,564 INFO L87 Difference]: Start difference. First operand 5166 states and 5500 transitions. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:08:18,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:18,159 INFO L93 Difference]: Finished difference Result 10686 states and 11422 transitions. [2023-11-06 23:08:18,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:08:18,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 794 [2023-11-06 23:08:18,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:18,172 INFO L225 Difference]: With dead ends: 10686 [2023-11-06 23:08:18,172 INFO L226 Difference]: Without dead ends: 5700 [2023-11-06 23:08:18,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 797 GetRequests, 794 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:08:18,178 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 81 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:18,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 27 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 23:08:18,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2023-11-06 23:08:18,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5700. [2023-11-06 23:08:18,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5700 states, 5699 states have (on average 1.0626425688717318) internal successors, (6056), 5699 states have internal predecessors, (6056), 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 23:08:18,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 6056 transitions. [2023-11-06 23:08:18,275 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 6056 transitions. Word has length 794 [2023-11-06 23:08:18,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:18,276 INFO L495 AbstractCegarLoop]: Abstraction has 5700 states and 6056 transitions. [2023-11-06 23:08:18,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:08:18,277 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 6056 transitions. [2023-11-06 23:08:18,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 824 [2023-11-06 23:08:18,288 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:18,289 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 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 23:08:18,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 23:08:18,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-06 23:08:18,495 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:18,495 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:18,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1777817371, now seen corresponding path program 1 times [2023-11-06 23:08:18,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:18,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500943206] [2023-11-06 23:08:18,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:18,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:19,239 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 1413 proven. 155 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-11-06 23:08:19,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:19,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500943206] [2023-11-06 23:08:19,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500943206] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:08:19,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696593826] [2023-11-06 23:08:19,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:19,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:08:19,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:08:19,255 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:08:19,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 23:08:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:19,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:08:19,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:08:20,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 1413 proven. 155 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-11-06 23:08:20,038 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:08:20,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 1413 proven. 155 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-11-06 23:08:20,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696593826] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:08:20,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 23:08:20,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-11-06 23:08:20,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285235574] [2023-11-06 23:08:20,556 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 23:08:20,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:08:20,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:20,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:08:20,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:08:20,561 INFO L87 Difference]: Start difference. First operand 5700 states and 6056 transitions. Second operand has 6 states, 6 states have (on average 151.66666666666666) internal successors, (910), 6 states have internal predecessors, (910), 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 23:08:21,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:21,814 INFO L93 Difference]: Finished difference Result 13356 states and 14210 transitions. [2023-11-06 23:08:21,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 23:08:21,815 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 151.66666666666666) internal successors, (910), 6 states have internal predecessors, (910), 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 823 [2023-11-06 23:08:21,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:21,830 INFO L225 Difference]: With dead ends: 13356 [2023-11-06 23:08:21,830 INFO L226 Difference]: Without dead ends: 7836 [2023-11-06 23:08:21,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1648 GetRequests, 1644 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:08:21,837 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 44 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 1146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:21,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 67 Invalid, 1146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1084 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-06 23:08:21,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7836 states. [2023-11-06 23:08:21,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7836 to 6768. [2023-11-06 23:08:21,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6768 states, 6767 states have (on average 1.0604403723954485) internal successors, (7176), 6767 states have internal predecessors, (7176), 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 23:08:21,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6768 states to 6768 states and 7176 transitions. [2023-11-06 23:08:21,970 INFO L78 Accepts]: Start accepts. Automaton has 6768 states and 7176 transitions. Word has length 823 [2023-11-06 23:08:21,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:21,972 INFO L495 AbstractCegarLoop]: Abstraction has 6768 states and 7176 transitions. [2023-11-06 23:08:21,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 151.66666666666666) internal successors, (910), 6 states have internal predecessors, (910), 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 23:08:21,973 INFO L276 IsEmpty]: Start isEmpty. Operand 6768 states and 7176 transitions. [2023-11-06 23:08:21,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 914 [2023-11-06 23:08:21,986 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:21,986 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 23:08:21,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 23:08:22,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:08:22,194 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:22,194 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:22,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1631092303, now seen corresponding path program 1 times [2023-11-06 23:08:22,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:22,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384355827] [2023-11-06 23:08:22,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:22,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:22,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:23,268 INFO L134 CoverageAnalysis]: Checked inductivity of 2405 backedges. 1613 proven. 93 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2023-11-06 23:08:23,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:23,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384355827] [2023-11-06 23:08:23,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384355827] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:08:23,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779104524] [2023-11-06 23:08:23,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:23,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:08:23,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:08:23,271 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:08:23,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 23:08:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:23,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 1115 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:08:23,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:08:24,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2405 backedges. 1706 proven. 0 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2023-11-06 23:08:24,283 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:08:24,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779104524] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:24,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 23:08:24,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-06 23:08:24,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612217407] [2023-11-06 23:08:24,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:24,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:08:24,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:24,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:08:24,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:08:24,288 INFO L87 Difference]: Start difference. First operand 6768 states and 7176 transitions. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 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 23:08:24,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:24,866 INFO L93 Difference]: Finished difference Result 13534 states and 14361 transitions. [2023-11-06 23:08:24,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:08:24,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 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 913 [2023-11-06 23:08:24,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:24,882 INFO L225 Difference]: With dead ends: 13534 [2023-11-06 23:08:24,882 INFO L226 Difference]: Without dead ends: 6946 [2023-11-06 23:08:24,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 916 GetRequests, 912 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:08:24,890 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:24,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 64 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 23:08:24,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6946 states. [2023-11-06 23:08:25,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6946 to 6768. [2023-11-06 23:08:25,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6768 states, 6767 states have (on average 1.0613270282252105) internal successors, (7182), 6767 states have internal predecessors, (7182), 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 23:08:25,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6768 states to 6768 states and 7182 transitions. [2023-11-06 23:08:25,034 INFO L78 Accepts]: Start accepts. Automaton has 6768 states and 7182 transitions. Word has length 913 [2023-11-06 23:08:25,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:25,035 INFO L495 AbstractCegarLoop]: Abstraction has 6768 states and 7182 transitions. [2023-11-06 23:08:25,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 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 23:08:25,035 INFO L276 IsEmpty]: Start isEmpty. Operand 6768 states and 7182 transitions. [2023-11-06 23:08:25,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 955 [2023-11-06 23:08:25,048 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:25,048 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:25,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 23:08:25,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-06 23:08:25,256 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:25,257 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:25,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1246204830, now seen corresponding path program 1 times [2023-11-06 23:08:25,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:25,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323014031] [2023-11-06 23:08:25,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:25,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:25,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:26,333 INFO L134 CoverageAnalysis]: Checked inductivity of 3031 backedges. 2044 proven. 0 refuted. 0 times theorem prover too weak. 987 trivial. 0 not checked. [2023-11-06 23:08:26,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:26,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323014031] [2023-11-06 23:08:26,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323014031] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:26,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:26,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:08:26,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876454637] [2023-11-06 23:08:26,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:26,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:08:26,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:26,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:08:26,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:08:26,337 INFO L87 Difference]: Start difference. First operand 6768 states and 7182 transitions. Second operand has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 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 23:08:26,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:26,873 INFO L93 Difference]: Finished difference Result 13178 states and 14003 transitions. [2023-11-06 23:08:26,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:08:26,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 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 954 [2023-11-06 23:08:26,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:26,885 INFO L225 Difference]: With dead ends: 13178 [2023-11-06 23:08:26,885 INFO L226 Difference]: Without dead ends: 6590 [2023-11-06 23:08:26,891 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 23:08:26,892 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 23 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:26,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 225 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 23:08:26,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6590 states. [2023-11-06 23:08:26,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6590 to 6590. [2023-11-06 23:08:26,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6590 states, 6589 states have (on average 1.0538776749127334) internal successors, (6944), 6589 states have internal predecessors, (6944), 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 23:08:26,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 6944 transitions. [2023-11-06 23:08:26,999 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 6944 transitions. Word has length 954 [2023-11-06 23:08:27,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:27,000 INFO L495 AbstractCegarLoop]: Abstraction has 6590 states and 6944 transitions. [2023-11-06 23:08:27,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 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 23:08:27,001 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 6944 transitions. [2023-11-06 23:08:27,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1005 [2023-11-06 23:08:27,014 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:27,015 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 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, 1, 1, 1] [2023-11-06 23:08:27,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-06 23:08:27,015 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:27,015 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:27,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1253897816, now seen corresponding path program 1 times [2023-11-06 23:08:27,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:27,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929842246] [2023-11-06 23:08:27,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:27,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:28,111 INFO L134 CoverageAnalysis]: Checked inductivity of 3651 backedges. 1681 proven. 0 refuted. 0 times theorem prover too weak. 1970 trivial. 0 not checked. [2023-11-06 23:08:28,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:28,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929842246] [2023-11-06 23:08:28,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929842246] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:28,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:28,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 23:08:28,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742318400] [2023-11-06 23:08:28,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:28,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 23:08:28,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:28,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 23:08:28,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:08:28,116 INFO L87 Difference]: Start difference. First operand 6590 states and 6944 transitions. Second operand has 7 states, 7 states have (on average 48.857142857142854) internal successors, (342), 6 states have internal predecessors, (342), 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 23:08:28,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:28,903 INFO L93 Difference]: Finished difference Result 12716 states and 13387 transitions. [2023-11-06 23:08:28,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 23:08:28,904 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 48.857142857142854) internal successors, (342), 6 states have internal predecessors, (342), 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 1004 [2023-11-06 23:08:28,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:28,915 INFO L225 Difference]: With dead ends: 12716 [2023-11-06 23:08:28,915 INFO L226 Difference]: Without dead ends: 6056 [2023-11-06 23:08:28,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:08:28,922 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 45 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:28,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 23 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 23:08:28,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2023-11-06 23:08:29,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 5878. [2023-11-06 23:08:29,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 5877 states have (on average 1.042538710226306) internal successors, (6127), 5877 states have internal predecessors, (6127), 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 23:08:29,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 6127 transitions. [2023-11-06 23:08:29,041 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 6127 transitions. Word has length 1004 [2023-11-06 23:08:29,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:29,042 INFO L495 AbstractCegarLoop]: Abstraction has 5878 states and 6127 transitions. [2023-11-06 23:08:29,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.857142857142854) internal successors, (342), 6 states have internal predecessors, (342), 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 23:08:29,042 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 6127 transitions. [2023-11-06 23:08:29,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1032 [2023-11-06 23:08:29,055 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:29,055 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:29,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-06 23:08:29,056 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:29,056 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:29,057 INFO L85 PathProgramCache]: Analyzing trace with hash -387054434, now seen corresponding path program 1 times [2023-11-06 23:08:29,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:29,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331304775] [2023-11-06 23:08:29,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:29,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:29,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:30,106 INFO L134 CoverageAnalysis]: Checked inductivity of 3057 backedges. 295 proven. 0 refuted. 0 times theorem prover too weak. 2762 trivial. 0 not checked. [2023-11-06 23:08:30,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:30,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331304775] [2023-11-06 23:08:30,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331304775] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:30,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:30,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:08:30,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842093699] [2023-11-06 23:08:30,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:30,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:08:30,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:30,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:08:30,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:08:30,114 INFO L87 Difference]: Start difference. First operand 5878 states and 6127 transitions. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 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 23:08:30,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:30,833 INFO L93 Difference]: Finished difference Result 11418 states and 11907 transitions. [2023-11-06 23:08:30,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:08:30,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 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 1031 [2023-11-06 23:08:30,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:30,845 INFO L225 Difference]: With dead ends: 11418 [2023-11-06 23:08:30,845 INFO L226 Difference]: Without dead ends: 5700 [2023-11-06 23:08:30,851 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 23:08:30,852 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 41 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:30,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 17 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 23:08:30,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2023-11-06 23:08:30,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5700. [2023-11-06 23:08:30,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5700 states, 5699 states have (on average 1.0414107738199685) internal successors, (5935), 5699 states have internal predecessors, (5935), 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 23:08:30,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 5935 transitions. [2023-11-06 23:08:30,953 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 5935 transitions. Word has length 1031 [2023-11-06 23:08:30,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:30,954 INFO L495 AbstractCegarLoop]: Abstraction has 5700 states and 5935 transitions. [2023-11-06 23:08:30,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 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 23:08:30,955 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 5935 transitions. [2023-11-06 23:08:30,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1037 [2023-11-06 23:08:30,967 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:30,968 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 23:08:30,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-06 23:08:30,968 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:30,969 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:30,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1310024199, now seen corresponding path program 1 times [2023-11-06 23:08:30,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:30,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696321778] [2023-11-06 23:08:30,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:30,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:32,597 INFO L134 CoverageAnalysis]: Checked inductivity of 3529 backedges. 2476 proven. 72 refuted. 0 times theorem prover too weak. 981 trivial. 0 not checked. [2023-11-06 23:08:32,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:32,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696321778] [2023-11-06 23:08:32,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696321778] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:08:32,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798809359] [2023-11-06 23:08:32,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:32,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:08:32,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:08:32,603 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:08:32,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 23:08:32,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:32,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 1280 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 23:08:32,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:08:33,821 INFO L134 CoverageAnalysis]: Checked inductivity of 3529 backedges. 2485 proven. 616 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2023-11-06 23:08:33,822 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:08:34,391 INFO L134 CoverageAnalysis]: Checked inductivity of 3529 backedges. 2548 proven. 0 refuted. 0 times theorem prover too weak. 981 trivial. 0 not checked. [2023-11-06 23:08:34,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798809359] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-06 23:08:34,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-06 23:08:34,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 9 [2023-11-06 23:08:34,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080978104] [2023-11-06 23:08:34,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:34,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 23:08:34,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:34,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 23:08:34,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-06 23:08:34,396 INFO L87 Difference]: Start difference. First operand 5700 states and 5935 transitions. Second operand has 5 states, 5 states have (on average 120.8) internal successors, (604), 5 states have internal predecessors, (604), 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 23:08:35,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:35,152 INFO L93 Difference]: Finished difference Result 11576 states and 12058 transitions. [2023-11-06 23:08:35,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:08:35,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 120.8) internal successors, (604), 5 states have internal predecessors, (604), 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 1036 [2023-11-06 23:08:35,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:35,161 INFO L225 Difference]: With dead ends: 11576 [2023-11-06 23:08:35,162 INFO L226 Difference]: Without dead ends: 6056 [2023-11-06 23:08:35,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2075 GetRequests, 2067 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-06 23:08:35,166 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 183 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:35,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 9 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 23:08:35,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2023-11-06 23:08:35,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 5700. [2023-11-06 23:08:35,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5700 states, 5699 states have (on average 1.0400070187752237) internal successors, (5927), 5699 states have internal predecessors, (5927), 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 23:08:35,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 5927 transitions. [2023-11-06 23:08:35,258 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 5927 transitions. Word has length 1036 [2023-11-06 23:08:35,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:35,259 INFO L495 AbstractCegarLoop]: Abstraction has 5700 states and 5927 transitions. [2023-11-06 23:08:35,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.8) internal successors, (604), 5 states have internal predecessors, (604), 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 23:08:35,260 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 5927 transitions. [2023-11-06 23:08:35,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1114 [2023-11-06 23:08:35,274 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:35,275 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 23:08:35,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-06 23:08:35,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:08:35,482 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:35,482 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:35,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1664766198, now seen corresponding path program 1 times [2023-11-06 23:08:35,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:35,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988810735] [2023-11-06 23:08:35,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:35,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:37,258 INFO L134 CoverageAnalysis]: Checked inductivity of 3853 backedges. 2800 proven. 72 refuted. 0 times theorem prover too weak. 981 trivial. 0 not checked. [2023-11-06 23:08:37,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:37,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988810735] [2023-11-06 23:08:37,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988810735] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:08:37,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094674931] [2023-11-06 23:08:37,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:37,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:08:37,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:08:37,261 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:08:37,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 23:08:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:37,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 1358 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 23:08:37,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:08:38,274 INFO L134 CoverageAnalysis]: Checked inductivity of 3853 backedges. 2513 proven. 0 refuted. 0 times theorem prover too weak. 1340 trivial. 0 not checked. [2023-11-06 23:08:38,275 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:08:38,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094674931] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:38,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 23:08:38,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-11-06 23:08:38,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48539975] [2023-11-06 23:08:38,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:38,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:08:38,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:38,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:08:38,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:08:38,279 INFO L87 Difference]: Start difference. First operand 5700 states and 5927 transitions. Second operand has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 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 23:08:39,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:39,195 INFO L93 Difference]: Finished difference Result 11932 states and 12411 transitions. [2023-11-06 23:08:39,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:08:39,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 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 1113 [2023-11-06 23:08:39,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:39,205 INFO L225 Difference]: With dead ends: 11932 [2023-11-06 23:08:39,205 INFO L226 Difference]: Without dead ends: 6412 [2023-11-06 23:08:39,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1117 GetRequests, 1112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:08:39,210 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 71 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:39,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 37 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-06 23:08:39,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6412 states. [2023-11-06 23:08:39,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6412 to 5878. [2023-11-06 23:08:39,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 5877 states have (on average 1.0391356134082015) internal successors, (6107), 5877 states have internal predecessors, (6107), 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 23:08:39,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 6107 transitions. [2023-11-06 23:08:39,302 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 6107 transitions. Word has length 1113 [2023-11-06 23:08:39,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:39,303 INFO L495 AbstractCegarLoop]: Abstraction has 5878 states and 6107 transitions. [2023-11-06 23:08:39,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 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 23:08:39,304 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 6107 transitions. [2023-11-06 23:08:39,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1396 [2023-11-06 23:08:39,321 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:39,322 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:39,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-06 23:08:39,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:08:39,529 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:39,530 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:39,530 INFO L85 PathProgramCache]: Analyzing trace with hash 126987919, now seen corresponding path program 1 times [2023-11-06 23:08:39,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:39,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691168563] [2023-11-06 23:08:39,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:39,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:39,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:40,602 INFO L134 CoverageAnalysis]: Checked inductivity of 5983 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 5577 trivial. 0 not checked. [2023-11-06 23:08:40,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:40,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691168563] [2023-11-06 23:08:40,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691168563] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:40,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:40,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:08:40,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026597052] [2023-11-06 23:08:40,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:40,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:08:40,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:40,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:08:40,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:08:40,606 INFO L87 Difference]: Start difference. First operand 5878 states and 6107 transitions. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 23:08:41,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:41,198 INFO L93 Difference]: Finished difference Result 11576 states and 12033 transitions. [2023-11-06 23:08:41,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:08:41,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 1395 [2023-11-06 23:08:41,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:41,209 INFO L225 Difference]: With dead ends: 11576 [2023-11-06 23:08:41,209 INFO L226 Difference]: Without dead ends: 5878 [2023-11-06 23:08:41,212 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 23:08:41,214 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 145 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:41,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 212 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 23:08:41,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2023-11-06 23:08:41,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5522. [2023-11-06 23:08:41,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5522 states, 5521 states have (on average 1.0356819416772325) internal successors, (5718), 5521 states have internal predecessors, (5718), 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 23:08:41,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5522 states to 5522 states and 5718 transitions. [2023-11-06 23:08:41,293 INFO L78 Accepts]: Start accepts. Automaton has 5522 states and 5718 transitions. Word has length 1395 [2023-11-06 23:08:41,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:41,294 INFO L495 AbstractCegarLoop]: Abstraction has 5522 states and 5718 transitions. [2023-11-06 23:08:41,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 23:08:41,295 INFO L276 IsEmpty]: Start isEmpty. Operand 5522 states and 5718 transitions. [2023-11-06 23:08:41,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1651 [2023-11-06 23:08:41,320 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:41,321 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:41,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-06 23:08:41,321 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:41,322 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:41,322 INFO L85 PathProgramCache]: Analyzing trace with hash -339858598, now seen corresponding path program 1 times [2023-11-06 23:08:41,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:41,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327081031] [2023-11-06 23:08:41,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:41,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:44,722 INFO L134 CoverageAnalysis]: Checked inductivity of 8594 backedges. 4979 proven. 0 refuted. 0 times theorem prover too weak. 3615 trivial. 0 not checked. [2023-11-06 23:08:44,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:44,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327081031] [2023-11-06 23:08:44,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327081031] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:44,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:44,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 23:08:44,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011126958] [2023-11-06 23:08:44,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:44,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 23:08:44,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:44,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 23:08:44,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:08:44,728 INFO L87 Difference]: Start difference. First operand 5522 states and 5718 transitions. Second operand has 7 states, 7 states have (on average 93.57142857142857) internal successors, (655), 6 states have internal predecessors, (655), 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 23:08:46,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:46,458 INFO L93 Difference]: Finished difference Result 13905 states and 14457 transitions. [2023-11-06 23:08:46,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 23:08:46,459 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 93.57142857142857) internal successors, (655), 6 states have internal predecessors, (655), 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 1650 [2023-11-06 23:08:46,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:46,469 INFO L225 Difference]: With dead ends: 13905 [2023-11-06 23:08:46,469 INFO L226 Difference]: Without dead ends: 8014 [2023-11-06 23:08:46,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:08:46,473 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 202 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1915 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 2018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:46,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 40 Invalid, 2018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1915 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-06 23:08:46,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8014 states. [2023-11-06 23:08:46,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8014 to 6768. [2023-11-06 23:08:46,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6768 states, 6767 states have (on average 1.0292596423821487) internal successors, (6965), 6767 states have internal predecessors, (6965), 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 23:08:46,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6768 states to 6768 states and 6965 transitions. [2023-11-06 23:08:46,621 INFO L78 Accepts]: Start accepts. Automaton has 6768 states and 6965 transitions. Word has length 1650 [2023-11-06 23:08:46,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:46,623 INFO L495 AbstractCegarLoop]: Abstraction has 6768 states and 6965 transitions. [2023-11-06 23:08:46,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 93.57142857142857) internal successors, (655), 6 states have internal predecessors, (655), 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 23:08:46,624 INFO L276 IsEmpty]: Start isEmpty. Operand 6768 states and 6965 transitions. [2023-11-06 23:08:46,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1707 [2023-11-06 23:08:46,668 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:46,669 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 10, 9, 8, 8, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:46,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-06 23:08:46,669 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:46,670 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:46,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1104275563, now seen corresponding path program 1 times [2023-11-06 23:08:46,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:46,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16486050] [2023-11-06 23:08:46,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:46,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:48,636 INFO L134 CoverageAnalysis]: Checked inductivity of 9627 backedges. 2859 proven. 0 refuted. 0 times theorem prover too weak. 6768 trivial. 0 not checked. [2023-11-06 23:08:48,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:48,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16486050] [2023-11-06 23:08:48,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16486050] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:48,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:48,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:08:48,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63013591] [2023-11-06 23:08:48,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:48,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:08:48,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:48,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:08:48,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:08:48,641 INFO L87 Difference]: Start difference. First operand 6768 states and 6965 transitions. Second operand has 4 states, 4 states have (on average 81.0) internal successors, (324), 3 states have internal predecessors, (324), 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 23:08:49,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:49,249 INFO L93 Difference]: Finished difference Result 13200 states and 13592 transitions. [2023-11-06 23:08:49,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:08:49,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 3 states have internal predecessors, (324), 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 1706 [2023-11-06 23:08:49,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:49,255 INFO L225 Difference]: With dead ends: 13200 [2023-11-06 23:08:49,255 INFO L226 Difference]: Without dead ends: 6768 [2023-11-06 23:08:49,257 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 23:08:49,258 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 29 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:49,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 17 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 23:08:49,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6768 states. [2023-11-06 23:08:49,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6768 to 6768. [2023-11-06 23:08:49,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6768 states, 6767 states have (on average 1.0283729865523865) internal successors, (6959), 6767 states have internal predecessors, (6959), 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 23:08:49,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6768 states to 6768 states and 6959 transitions. [2023-11-06 23:08:49,346 INFO L78 Accepts]: Start accepts. Automaton has 6768 states and 6959 transitions. Word has length 1706 [2023-11-06 23:08:49,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:49,348 INFO L495 AbstractCegarLoop]: Abstraction has 6768 states and 6959 transitions. [2023-11-06 23:08:49,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 3 states have internal predecessors, (324), 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 23:08:49,348 INFO L276 IsEmpty]: Start isEmpty. Operand 6768 states and 6959 transitions. [2023-11-06 23:08:49,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1818 [2023-11-06 23:08:49,378 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:49,380 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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 23:08:49,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-06 23:08:49,380 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:49,381 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:49,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1727618608, now seen corresponding path program 1 times [2023-11-06 23:08:49,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:49,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936189992] [2023-11-06 23:08:49,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:49,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:52,502 INFO L134 CoverageAnalysis]: Checked inductivity of 10935 backedges. 2784 proven. 0 refuted. 0 times theorem prover too weak. 8151 trivial. 0 not checked. [2023-11-06 23:08:52,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:52,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936189992] [2023-11-06 23:08:52,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936189992] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:52,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:52,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:08:52,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948121345] [2023-11-06 23:08:52,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:52,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 23:08:52,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:52,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 23:08:52,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:08:52,506 INFO L87 Difference]: Start difference. First operand 6768 states and 6959 transitions. Second operand has 5 states, 5 states have (on average 66.4) internal successors, (332), 4 states have internal predecessors, (332), 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 23:08:53,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:53,417 INFO L93 Difference]: Finished difference Result 15141 states and 15590 transitions. [2023-11-06 23:08:53,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 23:08:53,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 66.4) internal successors, (332), 4 states have internal predecessors, (332), 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 1817 [2023-11-06 23:08:53,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:53,427 INFO L225 Difference]: With dead ends: 15141 [2023-11-06 23:08:53,428 INFO L226 Difference]: Without dead ends: 8726 [2023-11-06 23:08:53,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:08:53,433 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 138 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:53,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 20 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-06 23:08:53,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8726 states. [2023-11-06 23:08:53,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8726 to 7302. [2023-11-06 23:08:53,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7302 states, 7301 states have (on average 1.029448020819066) internal successors, (7516), 7301 states have internal predecessors, (7516), 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 23:08:53,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7302 states to 7302 states and 7516 transitions. [2023-11-06 23:08:53,550 INFO L78 Accepts]: Start accepts. Automaton has 7302 states and 7516 transitions. Word has length 1817 [2023-11-06 23:08:53,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:53,551 INFO L495 AbstractCegarLoop]: Abstraction has 7302 states and 7516 transitions. [2023-11-06 23:08:53,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.4) internal successors, (332), 4 states have internal predecessors, (332), 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 23:08:53,551 INFO L276 IsEmpty]: Start isEmpty. Operand 7302 states and 7516 transitions. [2023-11-06 23:08:53,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1988 [2023-11-06 23:08:53,577 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:53,578 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:53,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-06 23:08:53,578 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:53,578 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:53,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1196899044, now seen corresponding path program 1 times [2023-11-06 23:08:53,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:53,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543945959] [2023-11-06 23:08:53,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:53,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:56,173 INFO L134 CoverageAnalysis]: Checked inductivity of 12745 backedges. 3559 proven. 812 refuted. 0 times theorem prover too weak. 8374 trivial. 0 not checked. [2023-11-06 23:08:56,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:56,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543945959] [2023-11-06 23:08:56,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543945959] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:08:56,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771914179] [2023-11-06 23:08:56,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:56,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:08:56,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:08:56,176 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:08:56,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-06 23:08:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:56,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 2377 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 23:08:56,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:08:59,625 INFO L134 CoverageAnalysis]: Checked inductivity of 12745 backedges. 4293 proven. 0 refuted. 0 times theorem prover too weak. 8452 trivial. 0 not checked. [2023-11-06 23:08:59,625 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:08:59,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771914179] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:59,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 23:08:59,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 8 [2023-11-06 23:08:59,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21035114] [2023-11-06 23:08:59,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:59,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 23:08:59,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:59,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 23:08:59,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-06 23:08:59,631 INFO L87 Difference]: Start difference. First operand 7302 states and 7516 transitions. Second operand has 7 states, 7 states have (on average 53.0) internal successors, (371), 6 states have internal predecessors, (371), 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 23:09:00,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:09:00,504 INFO L93 Difference]: Finished difference Result 14344 states and 14770 transitions. [2023-11-06 23:09:00,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 23:09:00,505 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 53.0) internal successors, (371), 6 states have internal predecessors, (371), 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 1987 [2023-11-06 23:09:00,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:09:00,511 INFO L225 Difference]: With dead ends: 14344 [2023-11-06 23:09:00,511 INFO L226 Difference]: Without dead ends: 7302 [2023-11-06 23:09:00,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1991 GetRequests, 1984 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-06 23:09:00,516 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 36 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-06 23:09:00,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 31 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-06 23:09:00,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7302 states. [2023-11-06 23:09:00,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7302 to 7302. [2023-11-06 23:09:00,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7302 states, 7301 states have (on average 1.0276674428160526) internal successors, (7503), 7301 states have internal predecessors, (7503), 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 23:09:00,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7302 states to 7302 states and 7503 transitions. [2023-11-06 23:09:00,632 INFO L78 Accepts]: Start accepts. Automaton has 7302 states and 7503 transitions. Word has length 1987 [2023-11-06 23:09:00,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:09:00,633 INFO L495 AbstractCegarLoop]: Abstraction has 7302 states and 7503 transitions. [2023-11-06 23:09:00,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.0) internal successors, (371), 6 states have internal predecessors, (371), 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 23:09:00,634 INFO L276 IsEmpty]: Start isEmpty. Operand 7302 states and 7503 transitions. [2023-11-06 23:09:00,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2026 [2023-11-06 23:09:00,664 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:09:00,665 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-06 23:09:00,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-06 23:09:00,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:00,878 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:09:00,879 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:00,879 INFO L85 PathProgramCache]: Analyzing trace with hash -331699378, now seen corresponding path program 1 times [2023-11-06 23:09:00,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:00,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655817594] [2023-11-06 23:09:00,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:00,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:03,300 INFO L134 CoverageAnalysis]: Checked inductivity of 13917 backedges. 4560 proven. 0 refuted. 0 times theorem prover too weak. 9357 trivial. 0 not checked. [2023-11-06 23:09:03,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:03,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655817594] [2023-11-06 23:09:03,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655817594] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:03,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:03,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 23:09:03,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577135613] [2023-11-06 23:09:03,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:03,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 23:09:03,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:03,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 23:09:03,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:09:03,304 INFO L87 Difference]: Start difference. First operand 7302 states and 7503 transitions. Second operand has 7 states, 7 states have (on average 52.857142857142854) internal successors, (370), 6 states have internal predecessors, (370), 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 23:09:04,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:09:04,015 INFO L93 Difference]: Finished difference Result 13853 states and 14231 transitions. [2023-11-06 23:09:04,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 23:09:04,016 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 52.857142857142854) internal successors, (370), 6 states have internal predecessors, (370), 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 2025 [2023-11-06 23:09:04,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:09:04,022 INFO L225 Difference]: With dead ends: 13853 [2023-11-06 23:09:04,022 INFO L226 Difference]: Without dead ends: 6768 [2023-11-06 23:09:04,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:09:04,026 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 24 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 23:09:04,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 25 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 23:09:04,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6768 states. [2023-11-06 23:09:04,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6768 to 6768. [2023-11-06 23:09:04,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6768 states, 6767 states have (on average 1.0248263632333383) internal successors, (6935), 6767 states have internal predecessors, (6935), 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 23:09:04,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6768 states to 6768 states and 6935 transitions. [2023-11-06 23:09:04,151 INFO L78 Accepts]: Start accepts. Automaton has 6768 states and 6935 transitions. Word has length 2025 [2023-11-06 23:09:04,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:09:04,152 INFO L495 AbstractCegarLoop]: Abstraction has 6768 states and 6935 transitions. [2023-11-06 23:09:04,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.857142857142854) internal successors, (370), 6 states have internal predecessors, (370), 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 23:09:04,152 INFO L276 IsEmpty]: Start isEmpty. Operand 6768 states and 6935 transitions. [2023-11-06 23:09:04,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2032 [2023-11-06 23:09:04,173 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:09:04,174 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-06 23:09:04,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-06 23:09:04,175 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:09:04,175 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:04,175 INFO L85 PathProgramCache]: Analyzing trace with hash -403831971, now seen corresponding path program 1 times [2023-11-06 23:09:04,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:04,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371511943] [2023-11-06 23:09:04,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:04,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:04,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:06,751 INFO L134 CoverageAnalysis]: Checked inductivity of 13995 backedges. 4584 proven. 0 refuted. 0 times theorem prover too weak. 9411 trivial. 0 not checked. [2023-11-06 23:09:06,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:06,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371511943] [2023-11-06 23:09:06,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371511943] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:06,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:06,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 23:09:06,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265135325] [2023-11-06 23:09:06,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:06,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 23:09:06,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:06,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 23:09:06,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:09:06,756 INFO L87 Difference]: Start difference. First operand 6768 states and 6935 transitions. Second operand has 7 states, 7 states have (on average 53.714285714285715) internal successors, (376), 6 states have internal predecessors, (376), 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 23:09:07,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:09:07,494 INFO L93 Difference]: Finished difference Result 12981 states and 13301 transitions. [2023-11-06 23:09:07,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 23:09:07,495 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 53.714285714285715) internal successors, (376), 6 states have internal predecessors, (376), 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 2031 [2023-11-06 23:09:07,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:09:07,500 INFO L225 Difference]: With dead ends: 12981 [2023-11-06 23:09:07,500 INFO L226 Difference]: Without dead ends: 6412 [2023-11-06 23:09:07,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:09:07,504 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 55 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 23:09:07,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 31 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 911 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 23:09:07,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6412 states. [2023-11-06 23:09:07,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6412 to 6412. [2023-11-06 23:09:07,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6412 states, 6411 states have (on average 1.0219934487599438) internal successors, (6552), 6411 states have internal predecessors, (6552), 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 23:09:07,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6412 states to 6412 states and 6552 transitions. [2023-11-06 23:09:07,593 INFO L78 Accepts]: Start accepts. Automaton has 6412 states and 6552 transitions. Word has length 2031 [2023-11-06 23:09:07,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:09:07,595 INFO L495 AbstractCegarLoop]: Abstraction has 6412 states and 6552 transitions. [2023-11-06 23:09:07,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.714285714285715) internal successors, (376), 6 states have internal predecessors, (376), 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 23:09:07,595 INFO L276 IsEmpty]: Start isEmpty. Operand 6412 states and 6552 transitions. [2023-11-06 23:09:07,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2120 [2023-11-06 23:09:07,618 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:09:07,620 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-06 23:09:07,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-06 23:09:07,620 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:09:07,620 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:07,621 INFO L85 PathProgramCache]: Analyzing trace with hash 2140269625, now seen corresponding path program 1 times [2023-11-06 23:09:07,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:07,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592055607] [2023-11-06 23:09:07,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:07,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:07,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:11,862 INFO L134 CoverageAnalysis]: Checked inductivity of 14529 backedges. 3210 proven. 0 refuted. 0 times theorem prover too weak. 11319 trivial. 0 not checked. [2023-11-06 23:09:11,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:11,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592055607] [2023-11-06 23:09:11,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592055607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:11,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:11,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:09:11,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996793863] [2023-11-06 23:09:11,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:11,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:09:11,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:11,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:09:11,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:09:11,867 INFO L87 Difference]: Start difference. First operand 6412 states and 6552 transitions. Second operand has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 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 23:09:12,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:09:12,648 INFO L93 Difference]: Finished difference Result 12291 states and 12567 transitions. [2023-11-06 23:09:12,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:09:12,648 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 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 2119 [2023-11-06 23:09:12,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:09:12,650 INFO L225 Difference]: With dead ends: 12291 [2023-11-06 23:09:12,651 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 23:09:12,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:09:12,654 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 91 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 23:09:12,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 15 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 23:09:12,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 23:09:12,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 23:09:12,656 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 23:09:12,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 23:09:12,656 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2119 [2023-11-06 23:09:12,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:09:12,657 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 23:09:12,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 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 23:09:12,657 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 23:09:12,658 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 23:09:12,660 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 23:09:12,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-06 23:09:12,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 23:09:18,908 INFO L899 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2023-11-06 23:09:18,908 INFO L899 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2023-11-06 23:09:18,908 INFO L899 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2023-11-06 23:09:18,908 INFO L899 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2023-11-06 23:09:18,909 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2023-11-06 23:09:18,909 INFO L899 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,909 INFO L899 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,909 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,909 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2023-11-06 23:09:18,909 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2023-11-06 23:09:18,909 INFO L899 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2023-11-06 23:09:18,909 INFO L899 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2023-11-06 23:09:18,909 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2023-11-06 23:09:18,909 INFO L899 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2023-11-06 23:09:18,909 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2023-11-06 23:09:18,909 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2023-11-06 23:09:18,909 INFO L899 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,910 INFO L899 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,910 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,910 INFO L899 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2023-11-06 23:09:18,910 INFO L899 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2023-11-06 23:09:18,910 INFO L899 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2023-11-06 23:09:18,910 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2023-11-06 23:09:18,910 INFO L899 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2023-11-06 23:09:18,910 INFO L899 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2023-11-06 23:09:18,910 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2023-11-06 23:09:18,910 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2023-11-06 23:09:18,910 INFO L899 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2023-11-06 23:09:18,910 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,910 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,911 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,911 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2023-11-06 23:09:18,911 INFO L899 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2023-11-06 23:09:18,911 INFO L899 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2023-11-06 23:09:18,911 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2023-11-06 23:09:18,911 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2023-11-06 23:09:18,911 INFO L899 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2023-11-06 23:09:18,911 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2023-11-06 23:09:18,911 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,911 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,911 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,911 INFO L899 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2023-11-06 23:09:18,911 INFO L899 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2023-11-06 23:09:18,912 INFO L899 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2023-11-06 23:09:18,912 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2023-11-06 23:09:18,912 INFO L899 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2023-11-06 23:09:18,912 INFO L899 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2023-11-06 23:09:18,912 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2023-11-06 23:09:18,913 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2023-11-06 23:09:18,913 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,913 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,913 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,913 INFO L899 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2023-11-06 23:09:18,913 INFO L899 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2023-11-06 23:09:18,913 INFO L899 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2023-11-06 23:09:18,914 INFO L899 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2023-11-06 23:09:18,914 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2023-11-06 23:09:18,914 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2023-11-06 23:09:18,914 INFO L899 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2023-11-06 23:09:18,914 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2023-11-06 23:09:18,914 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,914 INFO L899 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,914 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,914 INFO L899 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2023-11-06 23:09:18,914 INFO L899 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2023-11-06 23:09:18,915 INFO L899 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2023-11-06 23:09:18,915 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2023-11-06 23:09:18,915 INFO L899 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2023-11-06 23:09:18,915 INFO L899 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2023-11-06 23:09:18,915 INFO L899 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2023-11-06 23:09:18,915 INFO L899 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2023-11-06 23:09:18,915 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2023-11-06 23:09:18,916 INFO L899 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,916 INFO L899 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,916 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,916 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2023-11-06 23:09:18,917 INFO L899 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2023-11-06 23:09:18,917 INFO L899 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2023-11-06 23:09:18,917 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2023-11-06 23:09:18,917 INFO L899 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2023-11-06 23:09:18,917 INFO L899 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2023-11-06 23:09:18,918 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2023-11-06 23:09:18,918 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 23:09:18,918 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,918 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,918 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,918 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2023-11-06 23:09:18,919 INFO L899 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2023-11-06 23:09:18,919 INFO L899 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2023-11-06 23:09:18,919 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2023-11-06 23:09:18,919 INFO L899 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2023-11-06 23:09:18,919 INFO L899 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2023-11-06 23:09:18,919 INFO L899 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2023-11-06 23:09:18,919 INFO L899 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2023-11-06 23:09:18,919 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2023-11-06 23:09:18,919 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,919 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,919 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,919 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2023-11-06 23:09:18,919 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2023-11-06 23:09:18,920 INFO L899 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2023-11-06 23:09:18,920 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2023-11-06 23:09:18,920 INFO L899 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2023-11-06 23:09:18,920 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2023-11-06 23:09:18,920 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2023-11-06 23:09:18,920 INFO L899 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2023-11-06 23:09:18,920 INFO L899 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,920 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,920 INFO L899 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,920 INFO L899 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2023-11-06 23:09:18,920 INFO L899 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2023-11-06 23:09:18,920 INFO L899 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2023-11-06 23:09:18,921 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 23:09:18,921 INFO L899 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2023-11-06 23:09:18,921 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 131) no Hoare annotation was computed. [2023-11-06 23:09:18,921 INFO L899 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2023-11-06 23:09:18,921 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2023-11-06 23:09:18,921 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2023-11-06 23:09:18,921 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2023-11-06 23:09:18,922 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,922 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,922 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,922 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2023-11-06 23:09:18,922 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2023-11-06 23:09:18,922 INFO L899 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2023-11-06 23:09:18,922 INFO L899 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2023-11-06 23:09:18,922 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2023-11-06 23:09:18,922 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2023-11-06 23:09:18,923 INFO L899 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2023-11-06 23:09:18,923 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2023-11-06 23:09:18,923 INFO L899 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,923 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,923 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,923 INFO L899 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2023-11-06 23:09:18,923 INFO L899 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2023-11-06 23:09:18,923 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2023-11-06 23:09:18,923 INFO L899 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2023-11-06 23:09:18,923 INFO L899 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2023-11-06 23:09:18,923 INFO L899 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2023-11-06 23:09:18,923 INFO L899 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2023-11-06 23:09:18,924 INFO L899 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2023-11-06 23:09:18,924 INFO L899 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,924 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,924 INFO L899 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,924 INFO L899 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2023-11-06 23:09:18,924 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2023-11-06 23:09:18,924 INFO L899 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2023-11-06 23:09:18,924 INFO L899 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2023-11-06 23:09:18,924 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2023-11-06 23:09:18,924 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2023-11-06 23:09:18,924 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2023-11-06 23:09:18,924 INFO L899 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2023-11-06 23:09:18,924 INFO L899 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,925 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,925 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,925 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2023-11-06 23:09:18,925 INFO L899 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2023-11-06 23:09:18,925 INFO L899 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2023-11-06 23:09:18,925 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2023-11-06 23:09:18,925 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2023-11-06 23:09:18,925 INFO L899 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2023-11-06 23:09:18,925 INFO L899 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2023-11-06 23:09:18,925 INFO L899 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2023-11-06 23:09:18,925 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,925 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,925 INFO L899 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,925 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2023-11-06 23:09:18,926 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2023-11-06 23:09:18,926 INFO L899 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2023-11-06 23:09:18,926 INFO L899 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2023-11-06 23:09:18,926 INFO L899 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2023-11-06 23:09:18,926 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2023-11-06 23:09:18,926 INFO L899 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2023-11-06 23:09:18,926 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2023-11-06 23:09:18,926 INFO L899 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,926 INFO L899 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,926 INFO L899 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2023-11-06 23:09:18,926 INFO L899 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2023-11-06 23:09:18,926 INFO L899 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2023-11-06 23:09:18,926 INFO L899 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2023-11-06 23:09:18,927 INFO L899 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2023-11-06 23:09:18,927 INFO L899 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2023-11-06 23:09:18,927 INFO L899 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2023-11-06 23:09:18,927 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2023-11-06 23:09:18,927 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,927 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,927 INFO L899 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2023-11-06 23:09:18,927 INFO L899 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2023-11-06 23:09:18,928 INFO L899 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2023-11-06 23:09:18,928 INFO L899 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2023-11-06 23:09:18,928 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2023-11-06 23:09:18,928 INFO L899 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2023-11-06 23:09:18,928 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,928 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,928 INFO L899 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2023-11-06 23:09:18,929 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2023-11-06 23:09:18,929 INFO L899 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2023-11-06 23:09:18,929 INFO L899 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2023-11-06 23:09:18,929 INFO L899 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2023-11-06 23:09:18,929 INFO L899 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2023-11-06 23:09:18,929 INFO L899 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2023-11-06 23:09:18,929 INFO L899 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2023-11-06 23:09:18,929 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,930 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,930 INFO L902 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2023-11-06 23:09:18,930 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2023-11-06 23:09:18,930 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2023-11-06 23:09:18,930 INFO L899 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2023-11-06 23:09:18,930 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2023-11-06 23:09:18,931 INFO L899 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2023-11-06 23:09:18,931 INFO L899 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2023-11-06 23:09:18,931 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2023-11-06 23:09:18,931 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,931 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,931 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 23:09:18,931 INFO L899 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2023-11-06 23:09:18,932 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2023-11-06 23:09:18,932 INFO L899 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2023-11-06 23:09:18,932 INFO L899 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2023-11-06 23:09:18,932 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 23:09:18,932 INFO L899 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2023-11-06 23:09:18,932 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2023-11-06 23:09:18,932 INFO L899 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,933 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,933 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2023-11-06 23:09:18,933 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,933 INFO L899 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2023-11-06 23:09:18,933 INFO L895 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse10 (= 7 ~a15~0))) (let ((.cse17 (= 5 ~a15~0)) (.cse3 (<= ~a12~0 11)) (.cse11 (<= 0 (+ ~a12~0 42))) (.cse4 (<= 10 ~a21~0)) (.cse16 (<= (+ 49 ~a12~0) 0)) (.cse13 (<= ~a12~0 80)) (.cse1 (= ~a21~0 9)) (.cse20 (not .cse10)) (.cse19 (<= 0 (+ 41 ~a12~0))) (.cse14 (= 7 ~a21~0)) (.cse7 (= ~a21~0 8)) (.cse6 (let ((.cse23 (+ (div (+ ~a12~0 (- 600066)) 5) 13))) (or (and (let ((.cse22 (+ ~a12~0 4))) (= .cse22 (* (div .cse22 5) 5))) (= .cse23 0)) (< .cse23 0)))) (.cse8 (<= 20 ~a12~0)) (.cse2 (<= ~a12~0 586307)) (.cse5 (<= 8 ~a15~0)) (.cse18 (= ~a21~0 10)) (.cse0 (= ~a24~0 1)) (.cse15 (<= ~a15~0 8)) (.cse21 (<= ~a21~0 6)) (.cse12 (<= ~a12~0 600129)) (.cse9 (<= 95382 ~a12~0))) (or (and .cse0 .cse1 (= ~a15~0 6) .cse2) (and .cse3 .cse0 .cse4 .cse5) (and .cse0 .cse6 (or (and .cse7 .cse8) (and .cse1 .cse9))) (and .cse7 .cse0 (<= (+ 44 ~a12~0) 0) .cse10) (and .cse3 .cse0 .cse4 .cse11) (and (<= 103531 ~a12~0) .cse7 .cse0 .cse12 .cse10) (and .cse13 .cse0 .cse14 .cse15) (and .cse0 .cse15 .cse1 .cse16) (and .cse0 .cse17 .cse12 .cse18 .cse19) (and .cse0 .cse17 (= ~a21~0 6)) (and .cse13 .cse0 (<= 12 ~a12~0) .cse1 .cse10) (and .cse0 .cse12 .cse4 .cse9 (= ~a15~0 8)) (and .cse3 .cse0 .cse15 .cse1 .cse20 .cse11) (and .cse0 .cse8 .cse6 .cse4 .cse5) (and .cse0 .cse15 .cse21 .cse2 .cse19) (and .cse15 .cse21 .cse16) (and .cse7 .cse0 .cse15 .cse20 .cse2 .cse19) (and .cse13 .cse0 .cse15 .cse1 .cse20 .cse19) (and .cse0 .cse14 .cse8 .cse6 .cse5) (and .cse7 .cse0 .cse6 .cse5) (and .cse0 .cse8 .cse2 .cse5) (and .cse0 .cse12 .cse18 .cse10) (and .cse0 .cse15 .cse21 .cse12 .cse9)))) [2023-11-06 23:09:18,934 INFO L899 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2023-11-06 23:09:18,934 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2023-11-06 23:09:18,934 INFO L899 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2023-11-06 23:09:18,934 INFO L899 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2023-11-06 23:09:18,934 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2023-11-06 23:09:18,935 INFO L895 garLoopResultBuilder]: At program point calculate_output_returnLabel#1(lines 30 882) the Hoare annotation is: (let ((.cse10 (= 7 ~a15~0))) (let ((.cse17 (= 5 ~a15~0)) (.cse3 (<= ~a12~0 11)) (.cse11 (<= 0 (+ ~a12~0 42))) (.cse4 (<= 10 ~a21~0)) (.cse16 (<= (+ 49 ~a12~0) 0)) (.cse13 (<= ~a12~0 80)) (.cse1 (= ~a21~0 9)) (.cse20 (not .cse10)) (.cse19 (<= 0 (+ 41 ~a12~0))) (.cse14 (= 7 ~a21~0)) (.cse7 (= ~a21~0 8)) (.cse6 (let ((.cse23 (+ (div (+ ~a12~0 (- 600066)) 5) 13))) (or (and (let ((.cse22 (+ ~a12~0 4))) (= .cse22 (* (div .cse22 5) 5))) (= .cse23 0)) (< .cse23 0)))) (.cse8 (<= 20 ~a12~0)) (.cse2 (<= ~a12~0 586307)) (.cse5 (<= 8 ~a15~0)) (.cse18 (= ~a21~0 10)) (.cse0 (= ~a24~0 1)) (.cse15 (<= ~a15~0 8)) (.cse21 (<= ~a21~0 6)) (.cse12 (<= ~a12~0 600129)) (.cse9 (<= 95382 ~a12~0))) (or (and .cse0 .cse1 (= ~a15~0 6) .cse2) (and .cse3 .cse0 .cse4 .cse5) (and .cse0 .cse6 (or (and .cse7 .cse8) (and .cse1 .cse9))) (and .cse7 .cse0 (<= (+ 44 ~a12~0) 0) .cse10) (and .cse3 .cse0 .cse4 .cse11) (and (<= 103531 ~a12~0) .cse7 .cse0 .cse12 .cse10) (and .cse13 .cse0 .cse14 .cse15) (and .cse0 .cse15 .cse1 .cse16) (and .cse0 .cse17 .cse12 .cse18 .cse19) (and .cse0 .cse17 (= ~a21~0 6)) (and .cse13 .cse0 (<= 12 ~a12~0) .cse1 .cse10) (and .cse0 .cse12 .cse4 .cse9 (= ~a15~0 8)) (and .cse3 .cse0 .cse15 .cse1 .cse20 .cse11) (and .cse0 .cse8 .cse6 .cse4 .cse5) (and .cse0 .cse15 .cse21 .cse2 .cse19) (and .cse15 .cse21 .cse16) (and .cse7 .cse0 .cse15 .cse20 .cse2 .cse19) (and .cse13 .cse0 .cse15 .cse1 .cse20 .cse19) (and .cse0 .cse14 .cse8 .cse6 .cse5) (and .cse7 .cse0 .cse6 .cse5) (and .cse0 .cse8 .cse2 .cse5) (and .cse0 .cse12 .cse18 .cse10) (and .cse0 .cse15 .cse21 .cse12 .cse9)))) [2023-11-06 23:09:18,935 INFO L899 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2023-11-06 23:09:18,935 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2023-11-06 23:09:18,935 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2023-11-06 23:09:18,935 INFO L899 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2023-11-06 23:09:18,935 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,935 INFO L899 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,936 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2023-11-06 23:09:18,936 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2023-11-06 23:09:18,936 INFO L899 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2023-11-06 23:09:18,936 INFO L899 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2023-11-06 23:09:18,936 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2023-11-06 23:09:18,940 INFO L445 BasicCegarLoop]: Path program histogram: [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] [2023-11-06 23:09:18,942 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 23:09:18,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:09:18 BoogieIcfgContainer [2023-11-06 23:09:18,997 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 23:09:18,997 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 23:09:18,998 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 23:09:18,998 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 23:09:18,998 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:07:47" (3/4) ... [2023-11-06 23:09:19,000 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 23:09:19,037 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-06 23:09:19,040 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 23:09:19,042 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 23:09:19,043 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 23:09:19,241 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 23:09:19,242 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 23:09:19,242 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 23:09:19,243 INFO L158 Benchmark]: Toolchain (without parser) took 95096.75ms. Allocated memory was 151.0MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 102.7MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 373.5MB. Max. memory is 16.1GB. [2023-11-06 23:09:19,243 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 151.0MB. Free memory is still 117.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:09:19,243 INFO L158 Benchmark]: CACSL2BoogieTranslator took 793.51ms. Allocated memory is still 151.0MB. Free memory was 102.2MB in the beginning and 69.2MB in the end (delta: 33.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-06 23:09:19,244 INFO L158 Benchmark]: Boogie Procedure Inliner took 131.73ms. Allocated memory is still 151.0MB. Free memory was 69.2MB in the beginning and 59.7MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 23:09:19,248 INFO L158 Benchmark]: Boogie Preprocessor took 147.63ms. Allocated memory is still 151.0MB. Free memory was 59.7MB in the beginning and 53.3MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-06 23:09:19,248 INFO L158 Benchmark]: RCFGBuilder took 1965.41ms. Allocated memory was 151.0MB in the beginning and 197.1MB in the end (delta: 46.1MB). Free memory was 53.3MB in the beginning and 125.9MB in the end (delta: -72.6MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. [2023-11-06 23:09:19,251 INFO L158 Benchmark]: TraceAbstraction took 91802.85ms. Allocated memory was 197.1MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 125.9MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 951.3MB. Max. memory is 16.1GB. [2023-11-06 23:09:19,256 INFO L158 Benchmark]: Witness Printer took 244.66ms. Allocated memory is still 1.6GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 23:09:19,259 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 151.0MB. Free memory is still 117.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 793.51ms. Allocated memory is still 151.0MB. Free memory was 102.2MB in the beginning and 69.2MB in the end (delta: 33.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 131.73ms. Allocated memory is still 151.0MB. Free memory was 69.2MB in the beginning and 59.7MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 147.63ms. Allocated memory is still 151.0MB. Free memory was 59.7MB in the beginning and 53.3MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1965.41ms. Allocated memory was 151.0MB in the beginning and 197.1MB in the end (delta: 46.1MB). Free memory was 53.3MB in the beginning and 125.9MB in the end (delta: -72.6MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. * TraceAbstraction took 91802.85ms. Allocated memory was 197.1MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 125.9MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 951.3MB. Max. memory is 16.1GB. * Witness Printer took 244.66ms. Allocated memory is still 1.6GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. 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: 131]: 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, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 91.6s, OverallIterations: 29, TraceHistogramMax: 18, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.5s, AutomataDifference: 26.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2985 SdHoareTripleChecker+Valid, 23.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2985 mSDsluCounter, 2318 SdHoareTripleChecker+Invalid, 19.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 246 mSDsCounter, 1883 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19207 IncrementalHoareTripleChecker+Invalid, 21090 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1883 mSolverCounterUnsat, 2072 mSDtfsCounter, 19207 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10733 GetRequests, 10637 SyntacticMatches, 1 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7302occurred in iteration=25, InterpolantAutomatonStates: 121, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.8s AutomataMinimizationTime, 29 MinimizatonAttempts, 7476 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 126 NumberOfFragments, 957 HoareAnnotationTreeSize, 3 FomulaSimplifications, 35876 FormulaSimplificationTreeSizeReduction, 2.7s HoareSimplificationTime, 3 FomulaSimplificationsInter, 6236 FormulaSimplificationTreeSizeReductionInter, 3.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.3s SsaConstructionTime, 3.9s SatisfiabilityAnalysisTime, 45.1s InterpolantComputationTime, 37038 NumberOfCodeBlocks, 37038 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 38856 ConstructedInterpolants, 0 QuantifiedInterpolants, 113281 SizeOfPredicates, 0 NumberOfNonLiveVariables, 10801 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 41 InterpolantComputations, 28 PerfectInterpolantSequences, 157554/160370 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: 30]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((a24 == 1) && (a21 == 9)) && (a15 == 6)) && (a12 <= 586307)) || ((((a12 <= 11) && (a24 == 1)) && (10 <= a21)) && (8 <= a15))) || (((a24 == 1) && ((((a12 + 4) == (((a12 + 4) / 5) * 5)) && ((((a12 + -600066) / 5) + 13) == 0)) || ((((a12 + -600066) / 5) + 13) < 0))) && (((a21 == 8) && (20 <= a12)) || ((a21 == 9) && (95382 <= a12))))) || ((((a21 == 8) && (a24 == 1)) && ((44 + a12) <= 0)) && (7 == a15))) || ((((a12 <= 11) && (a24 == 1)) && (10 <= a21)) && (0 <= (a12 + 42)))) || (((((103531 <= a12) && (a21 == 8)) && (a24 == 1)) && (a12 <= 600129)) && (7 == a15))) || ((((a12 <= 80) && (a24 == 1)) && (7 == a21)) && (a15 <= 8))) || ((((a24 == 1) && (a15 <= 8)) && (a21 == 9)) && ((49 + a12) <= 0))) || (((((a24 == 1) && (5 == a15)) && (a12 <= 600129)) && (a21 == 10)) && (0 <= (41 + a12)))) || (((a24 == 1) && (5 == a15)) && (a21 == 6))) || (((((a12 <= 80) && (a24 == 1)) && (12 <= a12)) && (a21 == 9)) && (7 == a15))) || (((((a24 == 1) && (a12 <= 600129)) && (10 <= a21)) && (95382 <= a12)) && (a15 == 8))) || ((((((a12 <= 11) && (a24 == 1)) && (a15 <= 8)) && (a21 == 9)) && !((7 == a15))) && (0 <= (a12 + 42)))) || (((((a24 == 1) && (20 <= a12)) && ((((a12 + 4) == (((a12 + 4) / 5) * 5)) && ((((a12 + -600066) / 5) + 13) == 0)) || ((((a12 + -600066) / 5) + 13) < 0))) && (10 <= a21)) && (8 <= a15))) || (((((a24 == 1) && (a15 <= 8)) && (a21 <= 6)) && (a12 <= 586307)) && (0 <= (41 + a12)))) || (((a15 <= 8) && (a21 <= 6)) && ((49 + a12) <= 0))) || ((((((a21 == 8) && (a24 == 1)) && (a15 <= 8)) && !((7 == a15))) && (a12 <= 586307)) && (0 <= (41 + a12)))) || ((((((a12 <= 80) && (a24 == 1)) && (a15 <= 8)) && (a21 == 9)) && !((7 == a15))) && (0 <= (41 + a12)))) || (((((a24 == 1) && (7 == a21)) && (20 <= a12)) && ((((a12 + 4) == (((a12 + 4) / 5) * 5)) && ((((a12 + -600066) / 5) + 13) == 0)) || ((((a12 + -600066) / 5) + 13) < 0))) && (8 <= a15))) || ((((a21 == 8) && (a24 == 1)) && ((((a12 + 4) == (((a12 + 4) / 5) * 5)) && ((((a12 + -600066) / 5) + 13) == 0)) || ((((a12 + -600066) / 5) + 13) < 0))) && (8 <= a15))) || ((((a24 == 1) && (20 <= a12)) && (a12 <= 586307)) && (8 <= a15))) || ((((a24 == 1) && (a12 <= 600129)) && (a21 == 10)) && (7 == a15))) || (((((a24 == 1) && (a15 <= 8)) && (a21 <= 6)) && (a12 <= 600129)) && (95382 <= a12))) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((a24 == 1) && (a21 == 9)) && (a15 == 6)) && (a12 <= 586307)) || ((((a12 <= 11) && (a24 == 1)) && (10 <= a21)) && (8 <= a15))) || (((a24 == 1) && ((((a12 + 4) == (((a12 + 4) / 5) * 5)) && ((((a12 + -600066) / 5) + 13) == 0)) || ((((a12 + -600066) / 5) + 13) < 0))) && (((a21 == 8) && (20 <= a12)) || ((a21 == 9) && (95382 <= a12))))) || ((((a21 == 8) && (a24 == 1)) && ((44 + a12) <= 0)) && (7 == a15))) || ((((a12 <= 11) && (a24 == 1)) && (10 <= a21)) && (0 <= (a12 + 42)))) || (((((103531 <= a12) && (a21 == 8)) && (a24 == 1)) && (a12 <= 600129)) && (7 == a15))) || ((((a12 <= 80) && (a24 == 1)) && (7 == a21)) && (a15 <= 8))) || ((((a24 == 1) && (a15 <= 8)) && (a21 == 9)) && ((49 + a12) <= 0))) || (((((a24 == 1) && (5 == a15)) && (a12 <= 600129)) && (a21 == 10)) && (0 <= (41 + a12)))) || (((a24 == 1) && (5 == a15)) && (a21 == 6))) || (((((a12 <= 80) && (a24 == 1)) && (12 <= a12)) && (a21 == 9)) && (7 == a15))) || (((((a24 == 1) && (a12 <= 600129)) && (10 <= a21)) && (95382 <= a12)) && (a15 == 8))) || ((((((a12 <= 11) && (a24 == 1)) && (a15 <= 8)) && (a21 == 9)) && !((7 == a15))) && (0 <= (a12 + 42)))) || (((((a24 == 1) && (20 <= a12)) && ((((a12 + 4) == (((a12 + 4) / 5) * 5)) && ((((a12 + -600066) / 5) + 13) == 0)) || ((((a12 + -600066) / 5) + 13) < 0))) && (10 <= a21)) && (8 <= a15))) || (((((a24 == 1) && (a15 <= 8)) && (a21 <= 6)) && (a12 <= 586307)) && (0 <= (41 + a12)))) || (((a15 <= 8) && (a21 <= 6)) && ((49 + a12) <= 0))) || ((((((a21 == 8) && (a24 == 1)) && (a15 <= 8)) && !((7 == a15))) && (a12 <= 586307)) && (0 <= (41 + a12)))) || ((((((a12 <= 80) && (a24 == 1)) && (a15 <= 8)) && (a21 == 9)) && !((7 == a15))) && (0 <= (41 + a12)))) || (((((a24 == 1) && (7 == a21)) && (20 <= a12)) && ((((a12 + 4) == (((a12 + 4) / 5) * 5)) && ((((a12 + -600066) / 5) + 13) == 0)) || ((((a12 + -600066) / 5) + 13) < 0))) && (8 <= a15))) || ((((a21 == 8) && (a24 == 1)) && ((((a12 + 4) == (((a12 + 4) / 5) * 5)) && ((((a12 + -600066) / 5) + 13) == 0)) || ((((a12 + -600066) / 5) + 13) < 0))) && (8 <= a15))) || ((((a24 == 1) && (20 <= a12)) && (a12 <= 586307)) && (8 <= a15))) || ((((a24 == 1) && (a12 <= 600129)) && (a21 == 10)) && (7 == a15))) || (((((a24 == 1) && (a15 <= 8)) && (a21 <= 6)) && (a12 <= 600129)) && (95382 <= a12))) RESULT: Ultimate proved your program to be correct! [2023-11-06 23:09:19,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b584b415-378f-440c-931a-7bee00976b4d/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