./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/psyco/psyco_security.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_cbdd02ca-f2c5-4366-b22d-9fcfe7fba766/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbdd02ca-f2c5-4366-b22d-9fcfe7fba766/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_cbdd02ca-f2c5-4366-b22d-9fcfe7fba766/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbdd02ca-f2c5-4366-b22d-9fcfe7fba766/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/psyco/psyco_security.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbdd02ca-f2c5-4366-b22d-9fcfe7fba766/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_cbdd02ca-f2c5-4366-b22d-9fcfe7fba766/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 c03d27deb00d6c25e1f99c43455f6da27475e88a721be2a7236bfffedf5da1e8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:55:45,365 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:55:45,492 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbdd02ca-f2c5-4366-b22d-9fcfe7fba766/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 21:55:45,501 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:55:45,502 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:55:45,542 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:55:45,543 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:55:45,543 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:55:45,545 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:55:45,550 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:55:45,551 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:55:45,552 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:55:45,552 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:55:45,554 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:55:45,555 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:55:45,555 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:55:45,556 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:55:45,556 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:55:45,556 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:55:45,557 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:55:45,557 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:55:45,558 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:55:45,558 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:55:45,559 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:55:45,561 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:55:45,561 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:55:45,562 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:55:45,562 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:55:45,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:55:45,563 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:55:45,565 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:55:45,565 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:55:45,565 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:55:45,566 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:55:45,566 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:55:45,566 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:55:45,566 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:55:45,567 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:55:45,567 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:55:45,567 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_cbdd02ca-f2c5-4366-b22d-9fcfe7fba766/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbdd02ca-f2c5-4366-b22d-9fcfe7fba766/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c03d27deb00d6c25e1f99c43455f6da27475e88a721be2a7236bfffedf5da1e8 [2023-11-06 21:55:45,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:55:45,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:55:45,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:55:45,940 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:55:45,940 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:55:45,942 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbdd02ca-f2c5-4366-b22d-9fcfe7fba766/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/psyco/psyco_security.c [2023-11-06 21:55:48,987 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:55:49,289 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:55:49,289 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbdd02ca-f2c5-4366-b22d-9fcfe7fba766/sv-benchmarks/c/psyco/psyco_security.c [2023-11-06 21:55:49,306 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbdd02ca-f2c5-4366-b22d-9fcfe7fba766/bin/uautomizer-verify-WvqO1wxjHP/data/cc6ad92ec/60ea013891254ffdbabd2f437fcb1780/FLAGe10220a5d [2023-11-06 21:55:49,328 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbdd02ca-f2c5-4366-b22d-9fcfe7fba766/bin/uautomizer-verify-WvqO1wxjHP/data/cc6ad92ec/60ea013891254ffdbabd2f437fcb1780 [2023-11-06 21:55:49,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:55:49,332 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:55:49,333 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:55:49,334 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:55:49,339 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:55:49,339 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:55:49" (1/1) ... [2023-11-06 21:55:49,340 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@180a8b83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:49, skipping insertion in model container [2023-11-06 21:55:49,340 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:55:49" (1/1) ... [2023-11-06 21:55:49,376 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:55:49,554 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_cbdd02ca-f2c5-4366-b22d-9fcfe7fba766/sv-benchmarks/c/psyco/psyco_security.c[12744,12757] [2023-11-06 21:55:49,559 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:55:49,576 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:55:49,618 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_cbdd02ca-f2c5-4366-b22d-9fcfe7fba766/sv-benchmarks/c/psyco/psyco_security.c[12744,12757] [2023-11-06 21:55:49,620 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:55:49,635 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:55:49,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:49 WrapperNode [2023-11-06 21:55:49,636 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:55:49,643 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:55:49,643 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:55:49,644 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:55:49,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:49" (1/1) ... [2023-11-06 21:55:49,666 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:49" (1/1) ... [2023-11-06 21:55:49,695 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 289 [2023-11-06 21:55:49,696 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:55:49,697 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:55:49,697 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:55:49,697 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:55:49,706 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:49" (1/1) ... [2023-11-06 21:55:49,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:49" (1/1) ... [2023-11-06 21:55:49,709 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:49" (1/1) ... [2023-11-06 21:55:49,709 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:49" (1/1) ... [2023-11-06 21:55:49,716 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:49" (1/1) ... [2023-11-06 21:55:49,722 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:49" (1/1) ... [2023-11-06 21:55:49,724 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:49" (1/1) ... [2023-11-06 21:55:49,726 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:49" (1/1) ... [2023-11-06 21:55:49,732 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:55:49,733 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:55:49,733 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:55:49,733 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:55:49,734 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:49" (1/1) ... [2023-11-06 21:55:49,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:55:49,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbdd02ca-f2c5-4366-b22d-9fcfe7fba766/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:55:49,773 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbdd02ca-f2c5-4366-b22d-9fcfe7fba766/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:55:49,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbdd02ca-f2c5-4366-b22d-9fcfe7fba766/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:55:49,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:55:49,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:55:49,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:55:49,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:55:49,892 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:55:49,895 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:55:50,252 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:55:50,260 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:55:50,260 INFO L302 CfgBuilder]: Removed 18 assume(true) statements. [2023-11-06 21:55:50,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:55:50 BoogieIcfgContainer [2023-11-06 21:55:50,262 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:55:50,265 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:55:50,265 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:55:50,277 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:55:50,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:55:49" (1/3) ... [2023-11-06 21:55:50,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd73c4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:55:50, skipping insertion in model container [2023-11-06 21:55:50,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:49" (2/3) ... [2023-11-06 21:55:50,282 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd73c4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:55:50, skipping insertion in model container [2023-11-06 21:55:50,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:55:50" (3/3) ... [2023-11-06 21:55:50,283 INFO L112 eAbstractionObserver]: Analyzing ICFG psyco_security.c [2023-11-06 21:55:50,300 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:55:50,300 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 21:55:50,369 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:55:50,376 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;@4c9d7f62, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:55:50,376 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 21:55:50,381 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 76 states have (on average 1.9342105263157894) internal successors, (147), 77 states have internal predecessors, (147), 0 states have call successors, (0), 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 21:55:50,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 21:55:50,406 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:55:50,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:55:50,407 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:55:50,413 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:55:50,413 INFO L85 PathProgramCache]: Analyzing trace with hash 352571364, now seen corresponding path program 1 times [2023-11-06 21:55:50,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:55:50,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311853834] [2023-11-06 21:55:50,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:55:50,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:55:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:55:50,570 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 21:55:50,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:55:50,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311853834] [2023-11-06 21:55:50,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311853834] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:55:50,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:55:50,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:55:50,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767054247] [2023-11-06 21:55:50,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:55:50,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 21:55:50,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:55:50,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 21:55:50,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:55:50,612 INFO L87 Difference]: Start difference. First operand has 78 states, 76 states have (on average 1.9342105263157894) internal successors, (147), 77 states have internal predecessors, (147), 0 states have call successors, (0), 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 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 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 21:55:50,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:55:50,641 INFO L93 Difference]: Finished difference Result 154 states and 292 transitions. [2023-11-06 21:55:50,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 21:55:50,643 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2023-11-06 21:55:50,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:55:50,654 INFO L225 Difference]: With dead ends: 154 [2023-11-06 21:55:50,654 INFO L226 Difference]: Without dead ends: 74 [2023-11-06 21:55:50,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:55:50,661 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:55:50,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:55:50,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-11-06 21:55:50,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2023-11-06 21:55:50,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.4931506849315068) internal successors, (109), 73 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:55:50,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 109 transitions. [2023-11-06 21:55:50,704 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 109 transitions. Word has length 9 [2023-11-06 21:55:50,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:55:50,704 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 109 transitions. [2023-11-06 21:55:50,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 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 21:55:50,705 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 109 transitions. [2023-11-06 21:55:50,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-06 21:55:50,706 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:55:50,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:55:50,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:55:50,707 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:55:50,708 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:55:50,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1422697708, now seen corresponding path program 1 times [2023-11-06 21:55:50,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:55:50,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948760497] [2023-11-06 21:55:50,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:55:50,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:55:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:55:50,779 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 21:55:50,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:55:50,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948760497] [2023-11-06 21:55:50,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948760497] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:55:50,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:55:50,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:55:50,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660413467] [2023-11-06 21:55:50,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:55:50,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:55:50,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:55:50,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:55:50,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:55:50,783 INFO L87 Difference]: Start difference. First operand 74 states and 109 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 21:55:50,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:55:50,871 INFO L93 Difference]: Finished difference Result 149 states and 220 transitions. [2023-11-06 21:55:50,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:55:50,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2023-11-06 21:55:50,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:55:50,875 INFO L225 Difference]: With dead ends: 149 [2023-11-06 21:55:50,875 INFO L226 Difference]: Without dead ends: 77 [2023-11-06 21:55:50,876 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 21:55:50,877 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 4 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:55:50,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 190 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:55:50,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-06 21:55:50,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-06 21:55:50,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.4736842105263157) internal successors, (112), 76 states have internal predecessors, (112), 0 states have call successors, (0), 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 21:55:50,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 112 transitions. [2023-11-06 21:55:50,889 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 112 transitions. Word has length 10 [2023-11-06 21:55:50,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:55:50,889 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 112 transitions. [2023-11-06 21:55:50,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 21:55:50,890 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 112 transitions. [2023-11-06 21:55:50,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-06 21:55:50,891 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:55:50,891 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:55:50,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:55:50,891 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:55:50,892 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:55:50,892 INFO L85 PathProgramCache]: Analyzing trace with hash 658032583, now seen corresponding path program 1 times [2023-11-06 21:55:50,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:55:50,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184995503] [2023-11-06 21:55:50,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:55:50,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:55:50,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:55:50,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:55:50,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:55:50,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184995503] [2023-11-06 21:55:50,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184995503] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:55:50,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:55:50,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:55:50,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492956004] [2023-11-06 21:55:50,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:55:50,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:55:50,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:55:50,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:55:50,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:55:50,973 INFO L87 Difference]: Start difference. First operand 77 states and 112 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 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 21:55:51,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:55:51,049 INFO L93 Difference]: Finished difference Result 157 states and 229 transitions. [2023-11-06 21:55:51,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:55:51,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2023-11-06 21:55:51,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:55:51,052 INFO L225 Difference]: With dead ends: 157 [2023-11-06 21:55:51,057 INFO L226 Difference]: Without dead ends: 83 [2023-11-06 21:55:51,058 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 21:55:51,059 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 21 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:55:51,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 174 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:55:51,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-11-06 21:55:51,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2023-11-06 21:55:51,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.45) internal successors, (116), 80 states have internal predecessors, (116), 0 states have call successors, (0), 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 21:55:51,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 116 transitions. [2023-11-06 21:55:51,071 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 116 transitions. Word has length 15 [2023-11-06 21:55:51,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:55:51,072 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 116 transitions. [2023-11-06 21:55:51,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 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 21:55:51,072 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 116 transitions. [2023-11-06 21:55:51,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-06 21:55:51,073 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:55:51,073 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:55:51,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 21:55:51,074 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:55:51,074 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:55:51,075 INFO L85 PathProgramCache]: Analyzing trace with hash 2066489199, now seen corresponding path program 1 times [2023-11-06 21:55:51,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:55:51,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722459687] [2023-11-06 21:55:51,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:55:51,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:55:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:55:51,189 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:55:51,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:55:51,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722459687] [2023-11-06 21:55:51,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722459687] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:55:51,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:55:51,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 21:55:51,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572711616] [2023-11-06 21:55:51,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:55:51,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:55:51,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:55:51,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:55:51,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:55:51,195 INFO L87 Difference]: Start difference. First operand 81 states and 116 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 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 21:55:51,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:55:51,386 INFO L93 Difference]: Finished difference Result 254 states and 362 transitions. [2023-11-06 21:55:51,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:55:51,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2023-11-06 21:55:51,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:55:51,389 INFO L225 Difference]: With dead ends: 254 [2023-11-06 21:55:51,389 INFO L226 Difference]: Without dead ends: 164 [2023-11-06 21:55:51,390 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 21:55:51,392 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 93 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 21:55:51,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 348 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 21:55:51,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-11-06 21:55:51,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 129. [2023-11-06 21:55:51,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.515625) internal successors, (194), 128 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:55:51,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 194 transitions. [2023-11-06 21:55:51,409 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 194 transitions. Word has length 18 [2023-11-06 21:55:51,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:55:51,417 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 194 transitions. [2023-11-06 21:55:51,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 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 21:55:51,418 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 194 transitions. [2023-11-06 21:55:51,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-06 21:55:51,419 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:55:51,419 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:55:51,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 21:55:51,420 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:55:51,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:55:51,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1261026174, now seen corresponding path program 1 times [2023-11-06 21:55:51,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:55:51,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835269415] [2023-11-06 21:55:51,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:55:51,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:55:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:55:51,490 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 21:55:51,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:55:51,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835269415] [2023-11-06 21:55:51,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835269415] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:55:51,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:55:51,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:55:51,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793737354] [2023-11-06 21:55:51,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:55:51,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:55:51,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:55:51,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:55:51,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:55:51,494 INFO L87 Difference]: Start difference. First operand 129 states and 194 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 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 21:55:51,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:55:51,537 INFO L93 Difference]: Finished difference Result 233 states and 348 transitions. [2023-11-06 21:55:51,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:55:51,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 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 22 [2023-11-06 21:55:51,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:55:51,539 INFO L225 Difference]: With dead ends: 233 [2023-11-06 21:55:51,540 INFO L226 Difference]: Without dead ends: 107 [2023-11-06 21:55:51,541 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 21:55:51,542 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 28 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:55:51,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 152 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:55:51,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-06 21:55:51,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2023-11-06 21:55:51,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.4230769230769231) internal successors, (148), 104 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 21:55:51,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 148 transitions. [2023-11-06 21:55:51,556 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 148 transitions. Word has length 22 [2023-11-06 21:55:51,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:55:51,557 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 148 transitions. [2023-11-06 21:55:51,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 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 21:55:51,557 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 148 transitions. [2023-11-06 21:55:51,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-06 21:55:51,559 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:55:51,559 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:55:51,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 21:55:51,559 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:55:51,560 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:55:51,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1588216786, now seen corresponding path program 1 times [2023-11-06 21:55:51,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:55:51,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354631690] [2023-11-06 21:55:51,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:55:51,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:55:51,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:55:51,624 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 21:55:51,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:55:51,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354631690] [2023-11-06 21:55:51,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354631690] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:55:51,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:55:51,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:55:51,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875425273] [2023-11-06 21:55:51,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:55:51,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:55:51,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:55:51,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:55:51,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:55:51,628 INFO L87 Difference]: Start difference. First operand 105 states and 148 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 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 21:55:51,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:55:51,693 INFO L93 Difference]: Finished difference Result 189 states and 268 transitions. [2023-11-06 21:55:51,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:55:51,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 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 24 [2023-11-06 21:55:51,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:55:51,695 INFO L225 Difference]: With dead ends: 189 [2023-11-06 21:55:51,695 INFO L226 Difference]: Without dead ends: 87 [2023-11-06 21:55:51,696 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 21:55:51,698 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 28 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:55:51,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 124 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:55:51,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-06 21:55:51,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2023-11-06 21:55:51,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 84 states have (on average 1.4047619047619047) internal successors, (118), 84 states have internal predecessors, (118), 0 states have call successors, (0), 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 21:55:51,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 118 transitions. [2023-11-06 21:55:51,729 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 118 transitions. Word has length 24 [2023-11-06 21:55:51,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:55:51,739 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 118 transitions. [2023-11-06 21:55:51,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 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 21:55:51,740 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 118 transitions. [2023-11-06 21:55:51,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-06 21:55:51,741 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:55:51,741 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:55:51,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 21:55:51,741 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:55:51,742 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:55:51,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1712893632, now seen corresponding path program 1 times [2023-11-06 21:55:51,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:55:51,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837053208] [2023-11-06 21:55:51,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:55:51,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:55:51,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:55:51,849 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 21:55:51,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:55:51,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837053208] [2023-11-06 21:55:51,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837053208] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:55:51,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:55:51,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:55:51,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38473855] [2023-11-06 21:55:51,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:55:51,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:55:51,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:55:51,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:55:51,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:55:51,852 INFO L87 Difference]: Start difference. First operand 85 states and 118 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 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 21:55:51,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:55:51,916 INFO L93 Difference]: Finished difference Result 132 states and 185 transitions. [2023-11-06 21:55:51,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:55:51,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 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 26 [2023-11-06 21:55:51,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:55:51,918 INFO L225 Difference]: With dead ends: 132 [2023-11-06 21:55:51,918 INFO L226 Difference]: Without dead ends: 66 [2023-11-06 21:55:51,918 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 21:55:51,919 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 14 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:55:51,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 114 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:55:51,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-06 21:55:51,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-11-06 21:55:51,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.2923076923076924) internal successors, (84), 65 states have internal predecessors, (84), 0 states have call successors, (0), 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 21:55:51,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 84 transitions. [2023-11-06 21:55:51,927 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 84 transitions. Word has length 26 [2023-11-06 21:55:51,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:55:51,928 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 84 transitions. [2023-11-06 21:55:51,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 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 21:55:51,928 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 84 transitions. [2023-11-06 21:55:51,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-06 21:55:51,929 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:55:51,929 INFO L195 NwaCegarLoop]: trace histogram [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 21:55:51,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 21:55:51,930 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:55:51,930 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:55:51,930 INFO L85 PathProgramCache]: Analyzing trace with hash -583473182, now seen corresponding path program 1 times [2023-11-06 21:55:51,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:55:51,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761671082] [2023-11-06 21:55:51,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:55:51,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:55:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:55:52,010 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 21:55:52,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:55:52,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761671082] [2023-11-06 21:55:52,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761671082] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:55:52,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:55:52,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:55:52,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227604864] [2023-11-06 21:55:52,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:55:52,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:55:52,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:55:52,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:55:52,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:55:52,012 INFO L87 Difference]: Start difference. First operand 66 states and 84 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 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 21:55:52,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:55:52,036 INFO L93 Difference]: Finished difference Result 107 states and 139 transitions. [2023-11-06 21:55:52,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:55:52,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 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 29 [2023-11-06 21:55:52,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:55:52,037 INFO L225 Difference]: With dead ends: 107 [2023-11-06 21:55:52,037 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 21:55:52,037 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 21:55:52,039 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 13 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:55:52,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 104 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:55:52,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 21:55:52,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 21:55:52,040 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 21:55:52,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 21:55:52,040 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2023-11-06 21:55:52,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:55:52,041 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 21:55:52,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 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 21:55:52,041 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 21:55:52,041 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 21:55:52,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 21:55:52,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 21:55:52,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 21:55:52,096 INFO L899 garLoopResultBuilder]: For program point L250(lines 250 265) no Hoare annotation was computed. [2023-11-06 21:55:52,096 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 133) no Hoare annotation was computed. [2023-11-06 21:55:52,096 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 63) no Hoare annotation was computed. [2023-11-06 21:55:52,096 INFO L899 garLoopResultBuilder]: For program point L366(lines 366 381) no Hoare annotation was computed. [2023-11-06 21:55:52,097 INFO L899 garLoopResultBuilder]: For program point L234(lines 234 249) no Hoare annotation was computed. [2023-11-06 21:55:52,097 INFO L899 garLoopResultBuilder]: For program point L168(lines 168 179) no Hoare annotation was computed. [2023-11-06 21:55:52,097 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 117) no Hoare annotation was computed. [2023-11-06 21:55:52,097 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 38) no Hoare annotation was computed. [2023-11-06 21:55:52,097 INFO L899 garLoopResultBuilder]: For program point L350(lines 350 365) no Hoare annotation was computed. [2023-11-06 21:55:52,097 INFO L899 garLoopResultBuilder]: For program point L218(lines 218 233) no Hoare annotation was computed. [2023-11-06 21:55:52,097 INFO L899 garLoopResultBuilder]: For program point L185(lines 185 284) no Hoare annotation was computed. [2023-11-06 21:55:52,097 INFO L899 garLoopResultBuilder]: For program point L152(lines 152 163) no Hoare annotation was computed. [2023-11-06 21:55:52,097 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 349) no Hoare annotation was computed. [2023-11-06 21:55:52,097 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 279) no Hoare annotation was computed. [2023-11-06 21:55:52,098 INFO L899 garLoopResultBuilder]: For program point L202(lines 202 217) no Hoare annotation was computed. [2023-11-06 21:55:52,098 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 147) no Hoare annotation was computed. [2023-11-06 21:55:52,098 INFO L899 garLoopResultBuilder]: For program point L318(lines 318 333) no Hoare annotation was computed. [2023-11-06 21:55:52,098 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 384) no Hoare annotation was computed. [2023-11-06 21:55:52,098 INFO L899 garLoopResultBuilder]: For program point L252(lines 252 263) no Hoare annotation was computed. [2023-11-06 21:55:52,098 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 201) no Hoare annotation was computed. [2023-11-06 21:55:52,098 INFO L899 garLoopResultBuilder]: For program point L120(lines 120 131) no Hoare annotation was computed. [2023-11-06 21:55:52,098 INFO L899 garLoopResultBuilder]: For program point L368(lines 368 379) no Hoare annotation was computed. [2023-11-06 21:55:52,098 INFO L899 garLoopResultBuilder]: For program point L302(lines 302 317) no Hoare annotation was computed. [2023-11-06 21:55:52,099 INFO L895 garLoopResultBuilder]: At program point L368-2(lines 24 387) the Hoare annotation is: (or (and (= |ULTIMATE.start_main_~this_state~0#1| 3) (<= 4 |ULTIMATE.start_main_~q~0#1|)) (and (= 2 |ULTIMATE.start_main_~q~0#1|) (= |ULTIMATE.start_main_~this_state~0#1| 0)) (= |ULTIMATE.start_main_~q~0#1| 0) (and (= 3 |ULTIMATE.start_main_~q~0#1|) (= |ULTIMATE.start_main_~this_state~0#1| 2))) [2023-11-06 21:55:52,099 INFO L899 garLoopResultBuilder]: For program point L236(lines 236 247) no Hoare annotation was computed. [2023-11-06 21:55:52,099 INFO L899 garLoopResultBuilder]: For program point L104(lines 104 115) no Hoare annotation was computed. [2023-11-06 21:55:52,099 INFO L899 garLoopResultBuilder]: For program point L352(lines 352 363) no Hoare annotation was computed. [2023-11-06 21:55:52,099 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 301) no Hoare annotation was computed. [2023-11-06 21:55:52,099 INFO L899 garLoopResultBuilder]: For program point L220(lines 220 231) no Hoare annotation was computed. [2023-11-06 21:55:52,100 INFO L899 garLoopResultBuilder]: For program point L88(lines 88 90) no Hoare annotation was computed. [2023-11-06 21:55:52,100 INFO L899 garLoopResultBuilder]: For program point L336(lines 336 347) no Hoare annotation was computed. [2023-11-06 21:55:52,100 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 215) no Hoare annotation was computed. [2023-11-06 21:55:52,100 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 74) no Hoare annotation was computed. [2023-11-06 21:55:52,100 INFO L899 garLoopResultBuilder]: For program point L320(lines 320 331) no Hoare annotation was computed. [2023-11-06 21:55:52,100 INFO L899 garLoopResultBuilder]: For program point L188(lines 188 199) no Hoare annotation was computed. [2023-11-06 21:55:52,100 INFO L899 garLoopResultBuilder]: For program point L56(lines 56 58) no Hoare annotation was computed. [2023-11-06 21:55:52,100 INFO L899 garLoopResultBuilder]: For program point L304(lines 304 315) no Hoare annotation was computed. [2023-11-06 21:55:52,101 INFO L899 garLoopResultBuilder]: For program point L172(lines 172 174) no Hoare annotation was computed. [2023-11-06 21:55:52,101 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 299) no Hoare annotation was computed. [2023-11-06 21:55:52,101 INFO L899 garLoopResultBuilder]: For program point L156(lines 156 158) no Hoare annotation was computed. [2023-11-06 21:55:52,101 INFO L895 garLoopResultBuilder]: At program point L24-2(lines 24 387) the Hoare annotation is: (or (and (= |ULTIMATE.start_main_~this_state~0#1| 3) (<= 4 |ULTIMATE.start_main_~q~0#1|)) (and (= |ULTIMATE.start_main_~q~0#1| 0) (not (= |ULTIMATE.start_main_~this_state~0#1| 2)))) [2023-11-06 21:55:52,101 INFO L899 garLoopResultBuilder]: For program point L24-3(lines 24 387) no Hoare annotation was computed. [2023-11-06 21:55:52,101 INFO L899 garLoopResultBuilder]: For program point L272(lines 272 274) no Hoare annotation was computed. [2023-11-06 21:55:52,101 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 142) no Hoare annotation was computed. [2023-11-06 21:55:52,102 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 21:55:52,102 INFO L899 garLoopResultBuilder]: For program point L256(lines 256 258) no Hoare annotation was computed. [2023-11-06 21:55:52,102 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 126) no Hoare annotation was computed. [2023-11-06 21:55:52,102 INFO L899 garLoopResultBuilder]: For program point L372(lines 372 374) no Hoare annotation was computed. [2023-11-06 21:55:52,102 INFO L899 garLoopResultBuilder]: For program point L240(lines 240 242) no Hoare annotation was computed. [2023-11-06 21:55:52,102 INFO L899 garLoopResultBuilder]: For program point L108(lines 108 110) no Hoare annotation was computed. [2023-11-06 21:55:52,102 INFO L899 garLoopResultBuilder]: For program point L356(lines 356 358) no Hoare annotation was computed. [2023-11-06 21:55:52,102 INFO L899 garLoopResultBuilder]: For program point L224(lines 224 226) no Hoare annotation was computed. [2023-11-06 21:55:52,103 INFO L899 garLoopResultBuilder]: For program point L340(lines 340 342) no Hoare annotation was computed. [2023-11-06 21:55:52,103 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 210) no Hoare annotation was computed. [2023-11-06 21:55:52,103 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 326) no Hoare annotation was computed. [2023-11-06 21:55:52,103 INFO L899 garLoopResultBuilder]: For program point L192(lines 192 194) no Hoare annotation was computed. [2023-11-06 21:55:52,103 INFO L899 garLoopResultBuilder]: For program point L308(lines 308 310) no Hoare annotation was computed. [2023-11-06 21:55:52,103 INFO L899 garLoopResultBuilder]: For program point L292(lines 292 294) no Hoare annotation was computed. [2023-11-06 21:55:52,103 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 21:55:52,103 INFO L899 garLoopResultBuilder]: For program point L29(lines 29 48) no Hoare annotation was computed. [2023-11-06 21:55:52,103 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 21:55:52,104 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 45) no Hoare annotation was computed. [2023-11-06 21:55:52,104 INFO L902 garLoopResultBuilder]: At program point L15(lines 15 392) the Hoare annotation is: true [2023-11-06 21:55:52,104 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 43) no Hoare annotation was computed. [2023-11-06 21:55:52,104 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 21:55:52,104 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 391) no Hoare annotation was computed. [2023-11-06 21:55:52,104 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 97) no Hoare annotation was computed. [2023-11-06 21:55:52,104 INFO L899 garLoopResultBuilder]: For program point L49(lines 49 100) no Hoare annotation was computed. [2023-11-06 21:55:52,104 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 81) no Hoare annotation was computed. [2023-11-06 21:55:52,105 INFO L899 garLoopResultBuilder]: For program point L50(lines 50 65) no Hoare annotation was computed. [2023-11-06 21:55:52,105 INFO L899 garLoopResultBuilder]: For program point L166(lines 166 181) no Hoare annotation was computed. [2023-11-06 21:55:52,105 INFO L895 garLoopResultBuilder]: At program point main_ERROR#1(lines 15 392) the Hoare annotation is: false [2023-11-06 21:55:52,105 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 165) no Hoare annotation was computed. [2023-11-06 21:55:52,105 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 95) no Hoare annotation was computed. [2023-11-06 21:55:52,105 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 281) no Hoare annotation was computed. [2023-11-06 21:55:52,105 INFO L899 garLoopResultBuilder]: For program point L134(lines 134 149) no Hoare annotation was computed. [2023-11-06 21:55:52,105 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 184) no Hoare annotation was computed. [2023-11-06 21:55:52,105 INFO L899 garLoopResultBuilder]: For program point L68(lines 68 79) no Hoare annotation was computed. [2023-11-06 21:55:52,109 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:55:52,111 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 21:55:52,132 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:55:52 BoogieIcfgContainer [2023-11-06 21:55:52,133 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 21:55:52,133 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 21:55:52,134 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 21:55:52,134 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 21:55:52,134 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:55:50" (3/4) ... [2023-11-06 21:55:52,136 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 21:55:52,159 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-06 21:55:52,160 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 21:55:52,161 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 21:55:52,162 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 21:55:52,290 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbdd02ca-f2c5-4366-b22d-9fcfe7fba766/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 21:55:52,290 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbdd02ca-f2c5-4366-b22d-9fcfe7fba766/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 21:55:52,291 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 21:55:52,291 INFO L158 Benchmark]: Toolchain (without parser) took 2959.57ms. Allocated memory was 144.7MB in the beginning and 182.5MB in the end (delta: 37.7MB). Free memory was 113.3MB in the beginning and 122.3MB in the end (delta: -9.0MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2023-11-06 21:55:52,292 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 144.7MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:55:52,292 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.85ms. Allocated memory is still 144.7MB. Free memory was 113.0MB in the beginning and 100.5MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 21:55:52,292 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.00ms. Allocated memory is still 144.7MB. Free memory was 100.5MB in the beginning and 98.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:55:52,293 INFO L158 Benchmark]: Boogie Preprocessor took 35.45ms. Allocated memory is still 144.7MB. Free memory was 98.3MB in the beginning and 96.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:55:52,293 INFO L158 Benchmark]: RCFGBuilder took 529.65ms. Allocated memory is still 144.7MB. Free memory was 96.6MB in the beginning and 79.1MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-06 21:55:52,294 INFO L158 Benchmark]: TraceAbstraction took 1867.83ms. Allocated memory was 144.7MB in the beginning and 182.5MB in the end (delta: 37.7MB). Free memory was 78.3MB in the beginning and 128.6MB in the end (delta: -50.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:55:52,294 INFO L158 Benchmark]: Witness Printer took 157.31ms. Allocated memory is still 182.5MB. Free memory was 128.6MB in the beginning and 122.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-06 21:55:52,296 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 144.7MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 302.85ms. Allocated memory is still 144.7MB. Free memory was 113.0MB in the beginning and 100.5MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.00ms. Allocated memory is still 144.7MB. Free memory was 100.5MB in the beginning and 98.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.45ms. Allocated memory is still 144.7MB. Free memory was 98.3MB in the beginning and 96.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 529.65ms. Allocated memory is still 144.7MB. Free memory was 96.6MB in the beginning and 79.1MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1867.83ms. Allocated memory was 144.7MB in the beginning and 182.5MB in the end (delta: 37.7MB). Free memory was 78.3MB in the beginning and 128.6MB in the end (delta: -50.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 157.31ms. Allocated memory is still 182.5MB. Free memory was 128.6MB in the beginning and 122.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. 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: 391]: 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, 78 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 201 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 201 mSDsluCounter, 1326 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 507 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 243 IncrementalHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 819 mSDtfsCounter, 243 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=4, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 41 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 43 HoareAnnotationTreeSize, 4 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 145 ConstructedInterpolants, 0 QuantifiedInterpolants, 246 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 34/34 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: 24]: Loop Invariant Derived loop invariant: (((this_state == 3) && (4 <= q)) || ((q == 0) && !((this_state == 2)))) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (((((this_state == 3) && (4 <= q)) || ((2 == q) && (this_state == 0))) || (q == 0)) || ((3 == q) && (this_state == 2))) RESULT: Ultimate proved your program to be correct! [2023-11-06 21:55:52,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbdd02ca-f2c5-4366-b22d-9fcfe7fba766/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