./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/locks/test_locks_12.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43e04c8-84a7-489f-939f-dc07cf583a34/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43e04c8-84a7-489f-939f-dc07cf583a34/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43e04c8-84a7-489f-939f-dc07cf583a34/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43e04c8-84a7-489f-939f-dc07cf583a34/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_12.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43e04c8-84a7-489f-939f-dc07cf583a34/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43e04c8-84a7-489f-939f-dc07cf583a34/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 12c3feea735c5360de013afbcf9aaa3880d39f75cbb7661493cccf003151044d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:06:50,372 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:06:50,494 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43e04c8-84a7-489f-939f-dc07cf583a34/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-14 04:06:50,504 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:06:50,505 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:06:50,546 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:06:50,548 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:06:50,548 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:06:50,549 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:06:50,550 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:06:50,551 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:06:50,551 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:06:50,551 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:06:50,551 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:06:50,552 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:06:50,552 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:06:50,553 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:06:50,553 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:06:50,553 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:06:50,553 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:06:50,553 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:06:50,554 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:06:50,554 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 04:06:50,554 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 04:06:50,554 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:06:50,554 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:06:50,555 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:06:50,555 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:06:50,555 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:06:50,555 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 04:06:50,555 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 04:06:50,555 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-14 04:06:50,555 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:06:50,555 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 04:06:50,555 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:06:50,555 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 04:06:50,557 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:06:50,557 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:06:50,557 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:06:50,557 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:06:50,557 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:06:50,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:06:50,558 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:06:50,558 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:06:50,559 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:06:50,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:06:50,559 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:06:50,559 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:06:50,559 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:06:50,559 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_f43e04c8-84a7-489f-939f-dc07cf583a34/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan 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 -> 12c3feea735c5360de013afbcf9aaa3880d39f75cbb7661493cccf003151044d [2024-11-14 04:06:50,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:06:50,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:06:50,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:06:50,975 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:06:50,976 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:06:50,977 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43e04c8-84a7-489f-939f-dc07cf583a34/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/locks/test_locks_12.c Unable to find full path for "g++" [2024-11-14 04:06:53,209 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:06:53,522 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:06:53,522 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43e04c8-84a7-489f-939f-dc07cf583a34/sv-benchmarks/c/locks/test_locks_12.c [2024-11-14 04:06:53,535 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43e04c8-84a7-489f-939f-dc07cf583a34/bin/utaipan-verify-sOmjnqqW8E/data/9de879ecc/8cb8fa66073d458c86d1221d187ba816/FLAG94fec54dc [2024-11-14 04:06:53,804 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43e04c8-84a7-489f-939f-dc07cf583a34/bin/utaipan-verify-sOmjnqqW8E/data/9de879ecc/8cb8fa66073d458c86d1221d187ba816 [2024-11-14 04:06:53,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:06:53,809 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:06:53,812 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:06:53,812 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:06:53,822 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:06:53,824 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:06:53" (1/1) ... [2024-11-14 04:06:53,827 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b8c74ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:06:53, skipping insertion in model container [2024-11-14 04:06:53,827 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:06:53" (1/1) ... [2024-11-14 04:06:53,851 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:06:54,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:06:54,087 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:06:54,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:06:54,135 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:06:54,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:06:54 WrapperNode [2024-11-14 04:06:54,135 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:06:54,137 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:06:54,137 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:06:54,137 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:06:54,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:06:54" (1/1) ... [2024-11-14 04:06:54,150 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:06:54" (1/1) ... [2024-11-14 04:06:54,173 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 172 [2024-11-14 04:06:54,174 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:06:54,175 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:06:54,175 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:06:54,175 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:06:54,183 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:06:54" (1/1) ... [2024-11-14 04:06:54,184 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:06:54" (1/1) ... [2024-11-14 04:06:54,186 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:06:54" (1/1) ... [2024-11-14 04:06:54,186 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:06:54" (1/1) ... [2024-11-14 04:06:54,191 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:06:54" (1/1) ... [2024-11-14 04:06:54,197 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:06:54" (1/1) ... [2024-11-14 04:06:54,199 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:06:54" (1/1) ... [2024-11-14 04:06:54,200 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:06:54" (1/1) ... [2024-11-14 04:06:54,202 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:06:54,203 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:06:54,204 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:06:54,204 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:06:54,205 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:06:54" (1/1) ... [2024-11-14 04:06:54,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:06:54,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43e04c8-84a7-489f-939f-dc07cf583a34/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:06:54,253 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43e04c8-84a7-489f-939f-dc07cf583a34/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:06:54,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43e04c8-84a7-489f-939f-dc07cf583a34/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:06:54,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:06:54,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:06:54,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:06:54,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:06:54,378 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:06:54,381 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:06:54,871 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-14 04:06:54,871 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:06:55,023 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:06:55,023 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:06:55,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:06:55 BoogieIcfgContainer [2024-11-14 04:06:55,024 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:06:55,027 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:06:55,027 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:06:55,034 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:06:55,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:06:53" (1/3) ... [2024-11-14 04:06:55,035 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f94c84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:06:55, skipping insertion in model container [2024-11-14 04:06:55,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:06:54" (2/3) ... [2024-11-14 04:06:55,035 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f94c84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:06:55, skipping insertion in model container [2024-11-14 04:06:55,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:06:55" (3/3) ... [2024-11-14 04:06:55,037 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_12.c [2024-11-14 04:06:55,057 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:06:55,059 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG test_locks_12.c that has 1 procedures, 34 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2024-11-14 04:06:55,104 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:06:55,121 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@5c0a00c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:06:55,122 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 04:06:55,128 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 31 states have (on average 1.903225806451613) internal successors, (59), 33 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:55,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 04:06:55,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:06:55,138 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 04:06:55,139 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:06:55,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:06:55,147 INFO L85 PathProgramCache]: Analyzing trace with hash 8193903, now seen corresponding path program 1 times [2024-11-14 04:06:55,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:06:55,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353087528] [2024-11-14 04:06:55,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:06:55,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:06:55,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:06:55,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:06:55,385 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:06:55,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353087528] [2024-11-14 04:06:55,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353087528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:06:55,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:06:55,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:06:55,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621883780] [2024-11-14 04:06:55,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:06:55,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 04:06:55,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:06:55,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 04:06:55,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:06:55,439 INFO L87 Difference]: Start difference. First operand has 34 states, 31 states have (on average 1.903225806451613) internal successors, (59), 33 states have internal predecessors, (59), 0 states have call successors, (0), 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 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:55,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:06:55,476 INFO L93 Difference]: Finished difference Result 34 states and 57 transitions. [2024-11-14 04:06:55,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 04:06:55,479 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2024-11-14 04:06:55,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:06:55,492 INFO L225 Difference]: With dead ends: 34 [2024-11-14 04:06:55,492 INFO L226 Difference]: Without dead ends: 33 [2024-11-14 04:06:55,494 INFO L431 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 [2024-11-14 04:06:55,498 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:06:55,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:06:55,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-14 04:06:55,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-11-14 04:06:55,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 31 states have (on average 1.8064516129032258) internal successors, (56), 32 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:55,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 56 transitions. [2024-11-14 04:06:55,542 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 56 transitions. Word has length 4 [2024-11-14 04:06:55,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:06:55,542 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 56 transitions. [2024-11-14 04:06:55,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:55,543 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 56 transitions. [2024-11-14 04:06:55,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 04:06:55,544 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:06:55,544 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 04:06:55,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:06:55,544 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:06:55,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:06:55,545 INFO L85 PathProgramCache]: Analyzing trace with hash 246897654, now seen corresponding path program 1 times [2024-11-14 04:06:55,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:06:55,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195234807] [2024-11-14 04:06:55,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:06:55,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:06:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:06:55,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:06:55,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:06:55,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195234807] [2024-11-14 04:06:55,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195234807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:06:55,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:06:55,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 04:06:55,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808651575] [2024-11-14 04:06:55,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:06:55,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:06:55,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:06:55,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:06:55,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:06:55,665 INFO L87 Difference]: Start difference. First operand 33 states and 56 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:55,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:06:55,680 INFO L93 Difference]: Finished difference Result 32 states and 55 transitions. [2024-11-14 04:06:55,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:06:55,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2024-11-14 04:06:55,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:06:55,681 INFO L225 Difference]: With dead ends: 32 [2024-11-14 04:06:55,682 INFO L226 Difference]: Without dead ends: 30 [2024-11-14 04:06:55,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:06:55,683 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 51 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:06:55,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 53 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:06:55,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-14 04:06:55,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-14 04:06:55,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.8275862068965518) internal successors, (53), 29 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:55,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 53 transitions. [2024-11-14 04:06:55,689 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 53 transitions. Word has length 5 [2024-11-14 04:06:55,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:06:55,689 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 53 transitions. [2024-11-14 04:06:55,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:55,690 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 53 transitions. [2024-11-14 04:06:55,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 04:06:55,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:06:55,690 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:06:55,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 04:06:55,691 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:06:55,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:06:55,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1270389802, now seen corresponding path program 1 times [2024-11-14 04:06:55,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:06:55,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022833408] [2024-11-14 04:06:55,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:06:55,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:06:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:06:55,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:06:55,838 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:06:55,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022833408] [2024-11-14 04:06:55,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022833408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:06:55,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:06:55,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:06:55,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635969148] [2024-11-14 04:06:55,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:06:55,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:06:55,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:06:55,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:06:55,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:06:55,841 INFO L87 Difference]: Start difference. First operand 30 states and 53 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:55,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:06:55,882 INFO L93 Difference]: Finished difference Result 57 states and 100 transitions. [2024-11-14 04:06:55,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:06:55,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2024-11-14 04:06:55,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:06:55,884 INFO L225 Difference]: With dead ends: 57 [2024-11-14 04:06:55,884 INFO L226 Difference]: Without dead ends: 57 [2024-11-14 04:06:55,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:06:55,886 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 48 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:06:55,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 142 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:06:55,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-14 04:06:55,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 30. [2024-11-14 04:06:55,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.793103448275862) internal successors, (52), 29 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:55,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 52 transitions. [2024-11-14 04:06:55,893 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 52 transitions. Word has length 7 [2024-11-14 04:06:55,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:06:55,893 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 52 transitions. [2024-11-14 04:06:55,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:55,894 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 52 transitions. [2024-11-14 04:06:55,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 04:06:55,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:06:55,895 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:06:55,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 04:06:55,895 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:06:55,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:06:55,898 INFO L85 PathProgramCache]: Analyzing trace with hash 733965087, now seen corresponding path program 1 times [2024-11-14 04:06:55,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:06:55,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197305356] [2024-11-14 04:06:55,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:06:55,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:06:55,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:06:56,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:06:56,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:06:56,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197305356] [2024-11-14 04:06:56,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197305356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:06:56,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:06:56,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:06:56,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811555624] [2024-11-14 04:06:56,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:06:56,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:06:56,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:06:56,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:06:56,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:06:56,075 INFO L87 Difference]: Start difference. First operand 30 states and 52 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:56,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:06:56,127 INFO L93 Difference]: Finished difference Result 55 states and 95 transitions. [2024-11-14 04:06:56,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:06:56,128 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2024-11-14 04:06:56,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:06:56,129 INFO L225 Difference]: With dead ends: 55 [2024-11-14 04:06:56,130 INFO L226 Difference]: Without dead ends: 55 [2024-11-14 04:06:56,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:06:56,132 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 46 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:06:56,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 137 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:06:56,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-14 04:06:56,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 30. [2024-11-14 04:06:56,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.7586206896551724) internal successors, (51), 29 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:56,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 51 transitions. [2024-11-14 04:06:56,146 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 51 transitions. Word has length 8 [2024-11-14 04:06:56,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:06:56,146 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 51 transitions. [2024-11-14 04:06:56,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:56,147 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 51 transitions. [2024-11-14 04:06:56,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-14 04:06:56,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:06:56,151 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:06:56,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 04:06:56,151 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:06:56,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:06:56,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1284678677, now seen corresponding path program 1 times [2024-11-14 04:06:56,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:06:56,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803225973] [2024-11-14 04:06:56,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:06:56,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:06:56,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:06:56,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:06:56,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:06:56,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803225973] [2024-11-14 04:06:56,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803225973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:06:56,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:06:56,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:06:56,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395879711] [2024-11-14 04:06:56,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:06:56,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:06:56,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:06:56,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:06:56,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:06:56,316 INFO L87 Difference]: Start difference. First operand 30 states and 51 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2024-11-14 04:06:56,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:06:56,366 INFO L93 Difference]: Finished difference Result 53 states and 90 transitions. [2024-11-14 04:06:56,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:06:56,367 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 [2024-11-14 04:06:56,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:06:56,369 INFO L225 Difference]: With dead ends: 53 [2024-11-14 04:06:56,372 INFO L226 Difference]: Without dead ends: 53 [2024-11-14 04:06:56,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:06:56,373 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 44 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:06:56,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 130 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:06:56,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-14 04:06:56,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 30. [2024-11-14 04:06:56,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.7241379310344827) internal successors, (50), 29 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:56,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 50 transitions. [2024-11-14 04:06:56,382 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 50 transitions. Word has length 9 [2024-11-14 04:06:56,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:06:56,383 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 50 transitions. [2024-11-14 04:06:56,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2024-11-14 04:06:56,384 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 50 transitions. [2024-11-14 04:06:56,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-14 04:06:56,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:06:56,386 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:06:56,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 04:06:56,387 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:06:56,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:06:56,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1176941354, now seen corresponding path program 1 times [2024-11-14 04:06:56,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:06:56,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133843410] [2024-11-14 04:06:56,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:06:56,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:06:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:06:56,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:06:56,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:06:56,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133843410] [2024-11-14 04:06:56,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133843410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:06:56,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:06:56,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:06:56,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500038113] [2024-11-14 04:06:56,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:06:56,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:06:56,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:06:56,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:06:56,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:06:56,559 INFO L87 Difference]: Start difference. First operand 30 states and 50 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2024-11-14 04:06:56,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:06:56,590 INFO L93 Difference]: Finished difference Result 51 states and 85 transitions. [2024-11-14 04:06:56,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:06:56,591 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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 [2024-11-14 04:06:56,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:06:56,592 INFO L225 Difference]: With dead ends: 51 [2024-11-14 04:06:56,592 INFO L226 Difference]: Without dead ends: 51 [2024-11-14 04:06:56,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:06:56,593 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 42 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:06:56,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 124 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:06:56,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-14 04:06:56,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 30. [2024-11-14 04:06:56,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.6896551724137931) internal successors, (49), 29 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:56,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 49 transitions. [2024-11-14 04:06:56,598 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 49 transitions. Word has length 10 [2024-11-14 04:06:56,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:06:56,599 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 49 transitions. [2024-11-14 04:06:56,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2024-11-14 04:06:56,599 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 49 transitions. [2024-11-14 04:06:56,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 04:06:56,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:06:56,600 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:06:56,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 04:06:56,600 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:06:56,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:06:56,601 INFO L85 PathProgramCache]: Analyzing trace with hash 2132062208, now seen corresponding path program 1 times [2024-11-14 04:06:56,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:06:56,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085662166] [2024-11-14 04:06:56,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:06:56,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:06:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:06:56,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:06:56,689 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:06:56,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085662166] [2024-11-14 04:06:56,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085662166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:06:56,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:06:56,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:06:56,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105571808] [2024-11-14 04:06:56,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:06:56,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:06:56,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:06:56,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:06:56,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:06:56,691 INFO L87 Difference]: Start difference. First operand 30 states and 49 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:56,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:06:56,742 INFO L93 Difference]: Finished difference Result 49 states and 80 transitions. [2024-11-14 04:06:56,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:06:56,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2024-11-14 04:06:56,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:06:56,744 INFO L225 Difference]: With dead ends: 49 [2024-11-14 04:06:56,744 INFO L226 Difference]: Without dead ends: 49 [2024-11-14 04:06:56,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:06:56,745 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 40 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:06:56,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 119 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:06:56,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-14 04:06:56,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 30. [2024-11-14 04:06:56,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.6551724137931034) internal successors, (48), 29 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:56,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 48 transitions. [2024-11-14 04:06:56,758 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 48 transitions. Word has length 11 [2024-11-14 04:06:56,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:06:56,758 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 48 transitions. [2024-11-14 04:06:56,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:56,758 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 48 transitions. [2024-11-14 04:06:56,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 04:06:56,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:06:56,759 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:06:56,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 04:06:56,759 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:06:56,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:06:56,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1676048181, now seen corresponding path program 1 times [2024-11-14 04:06:56,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:06:56,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806637477] [2024-11-14 04:06:56,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:06:56,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:06:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:06:56,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:06:56,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:06:56,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806637477] [2024-11-14 04:06:56,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806637477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:06:56,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:06:56,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:06:56,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103095681] [2024-11-14 04:06:56,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:06:56,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:06:56,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:06:56,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:06:56,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:06:56,849 INFO L87 Difference]: Start difference. First operand 30 states and 48 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:56,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:06:56,882 INFO L93 Difference]: Finished difference Result 47 states and 75 transitions. [2024-11-14 04:06:56,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:06:56,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2024-11-14 04:06:56,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:06:56,884 INFO L225 Difference]: With dead ends: 47 [2024-11-14 04:06:56,884 INFO L226 Difference]: Without dead ends: 47 [2024-11-14 04:06:56,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:06:56,886 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 38 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:06:56,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 112 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:06:56,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-14 04:06:56,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 30. [2024-11-14 04:06:56,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.6206896551724137) internal successors, (47), 29 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:56,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 47 transitions. [2024-11-14 04:06:56,891 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 47 transitions. Word has length 12 [2024-11-14 04:06:56,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:06:56,891 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 47 transitions. [2024-11-14 04:06:56,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:56,891 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 47 transitions. [2024-11-14 04:06:56,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 04:06:56,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:06:56,892 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:06:56,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 04:06:56,893 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:06:56,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:06:56,893 INFO L85 PathProgramCache]: Analyzing trace with hash 424525803, now seen corresponding path program 1 times [2024-11-14 04:06:56,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:06:56,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848730442] [2024-11-14 04:06:56,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:06:56,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:06:56,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:06:56,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:06:56,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:06:56,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848730442] [2024-11-14 04:06:56,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848730442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:06:56,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:06:56,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:06:56,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229799643] [2024-11-14 04:06:56,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:06:56,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:06:56,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:06:56,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:06:56,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:06:56,975 INFO L87 Difference]: Start difference. First operand 30 states and 47 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:57,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:06:57,004 INFO L93 Difference]: Finished difference Result 45 states and 70 transitions. [2024-11-14 04:06:57,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:06:57,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2024-11-14 04:06:57,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:06:57,006 INFO L225 Difference]: With dead ends: 45 [2024-11-14 04:06:57,006 INFO L226 Difference]: Without dead ends: 45 [2024-11-14 04:06:57,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:06:57,007 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 36 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:06:57,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 107 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:06:57,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-14 04:06:57,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 30. [2024-11-14 04:06:57,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 29 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:57,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 46 transitions. [2024-11-14 04:06:57,011 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 46 transitions. Word has length 13 [2024-11-14 04:06:57,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:06:57,012 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 46 transitions. [2024-11-14 04:06:57,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:57,012 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 46 transitions. [2024-11-14 04:06:57,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 04:06:57,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:06:57,013 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:06:57,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 04:06:57,014 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:06:57,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:06:57,014 INFO L85 PathProgramCache]: Analyzing trace with hash 282048320, now seen corresponding path program 1 times [2024-11-14 04:06:57,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:06:57,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557210181] [2024-11-14 04:06:57,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:06:57,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:06:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:06:57,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:06:57,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:06:57,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557210181] [2024-11-14 04:06:57,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557210181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:06:57,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:06:57,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:06:57,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896269671] [2024-11-14 04:06:57,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:06:57,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:06:57,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:06:57,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:06:57,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:06:57,127 INFO L87 Difference]: Start difference. First operand 30 states and 46 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:57,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:06:57,157 INFO L93 Difference]: Finished difference Result 43 states and 65 transitions. [2024-11-14 04:06:57,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:06:57,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2024-11-14 04:06:57,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:06:57,158 INFO L225 Difference]: With dead ends: 43 [2024-11-14 04:06:57,159 INFO L226 Difference]: Without dead ends: 43 [2024-11-14 04:06:57,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:06:57,160 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 34 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:06:57,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 100 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:06:57,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-14 04:06:57,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 30. [2024-11-14 04:06:57,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.5517241379310345) internal successors, (45), 29 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:57,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 45 transitions. [2024-11-14 04:06:57,166 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 45 transitions. Word has length 14 [2024-11-14 04:06:57,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:06:57,166 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 45 transitions. [2024-11-14 04:06:57,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:57,166 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 45 transitions. [2024-11-14 04:06:57,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-14 04:06:57,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:06:57,171 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:06:57,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 04:06:57,172 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:06:57,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:06:57,172 INFO L85 PathProgramCache]: Analyzing trace with hash 160224214, now seen corresponding path program 1 times [2024-11-14 04:06:57,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:06:57,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385645521] [2024-11-14 04:06:57,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:06:57,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:06:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:06:57,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:06:57,274 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:06:57,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385645521] [2024-11-14 04:06:57,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385645521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:06:57,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:06:57,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:06:57,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839416432] [2024-11-14 04:06:57,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:06:57,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:06:57,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:06:57,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:06:57,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:06:57,278 INFO L87 Difference]: Start difference. First operand 30 states and 45 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2024-11-14 04:06:57,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:06:57,312 INFO L93 Difference]: Finished difference Result 41 states and 60 transitions. [2024-11-14 04:06:57,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:06:57,312 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 [2024-11-14 04:06:57,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:06:57,313 INFO L225 Difference]: With dead ends: 41 [2024-11-14 04:06:57,313 INFO L226 Difference]: Without dead ends: 41 [2024-11-14 04:06:57,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:06:57,314 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 32 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:06:57,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 95 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:06:57,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-14 04:06:57,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 30. [2024-11-14 04:06:57,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 29 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:57,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2024-11-14 04:06:57,321 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 15 [2024-11-14 04:06:57,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:06:57,321 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2024-11-14 04:06:57,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2024-11-14 04:06:57,321 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2024-11-14 04:06:57,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-14 04:06:57,322 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:06:57,322 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:06:57,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 04:06:57,322 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:06:57,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:06:57,324 INFO L85 PathProgramCache]: Analyzing trace with hash 678654795, now seen corresponding path program 1 times [2024-11-14 04:06:57,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:06:57,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052484440] [2024-11-14 04:06:57,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:06:57,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:06:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:06:57,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:06:57,413 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:06:57,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052484440] [2024-11-14 04:06:57,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052484440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:06:57,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:06:57,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:06:57,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865499179] [2024-11-14 04:06:57,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:06:57,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:06:57,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:06:57,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:06:57,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:06:57,417 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:57,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:06:57,451 INFO L93 Difference]: Finished difference Result 39 states and 55 transitions. [2024-11-14 04:06:57,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:06:57,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2024-11-14 04:06:57,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:06:57,455 INFO L225 Difference]: With dead ends: 39 [2024-11-14 04:06:57,455 INFO L226 Difference]: Without dead ends: 39 [2024-11-14 04:06:57,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:06:57,456 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 30 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:06:57,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 88 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:06:57,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-14 04:06:57,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 30. [2024-11-14 04:06:57,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 29 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:57,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 43 transitions. [2024-11-14 04:06:57,461 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 43 transitions. Word has length 16 [2024-11-14 04:06:57,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:06:57,462 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 43 transitions. [2024-11-14 04:06:57,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:57,466 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2024-11-14 04:06:57,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-14 04:06:57,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:06:57,466 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:06:57,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-14 04:06:57,467 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:06:57,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:06:57,467 INFO L85 PathProgramCache]: Analyzing trace with hash -429855807, now seen corresponding path program 1 times [2024-11-14 04:06:57,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:06:57,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892086717] [2024-11-14 04:06:57,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:06:57,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:06:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:06:57,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:06:57,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:06:57,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892086717] [2024-11-14 04:06:57,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892086717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:06:57,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:06:57,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:06:57,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622954936] [2024-11-14 04:06:57,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:06:57,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:06:57,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:06:57,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:06:57,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:06:57,554 INFO L87 Difference]: Start difference. First operand 30 states and 43 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:57,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:06:57,584 INFO L93 Difference]: Finished difference Result 37 states and 50 transitions. [2024-11-14 04:06:57,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:06:57,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2024-11-14 04:06:57,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:06:57,586 INFO L225 Difference]: With dead ends: 37 [2024-11-14 04:06:57,586 INFO L226 Difference]: Without dead ends: 37 [2024-11-14 04:06:57,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:06:57,587 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 28 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:06:57,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 82 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:06:57,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-14 04:06:57,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 30. [2024-11-14 04:06:57,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 29 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:57,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 42 transitions. [2024-11-14 04:06:57,595 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 42 transitions. Word has length 17 [2024-11-14 04:06:57,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:06:57,595 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 42 transitions. [2024-11-14 04:06:57,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:57,595 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 42 transitions. [2024-11-14 04:06:57,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-14 04:06:57,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:06:57,596 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:06:57,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 04:06:57,596 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:06:57,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:06:57,601 INFO L85 PathProgramCache]: Analyzing trace with hash -433935530, now seen corresponding path program 1 times [2024-11-14 04:06:57,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:06:57,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346069780] [2024-11-14 04:06:57,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:06:57,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:06:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:06:57,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:06:57,688 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:06:57,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346069780] [2024-11-14 04:06:57,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346069780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:06:57,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:06:57,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:06:57,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041395097] [2024-11-14 04:06:57,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:06:57,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:06:57,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:06:57,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:06:57,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:06:57,690 INFO L87 Difference]: Start difference. First operand 30 states and 42 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) [2024-11-14 04:06:57,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:06:57,712 INFO L93 Difference]: Finished difference Result 29 states and 41 transitions. [2024-11-14 04:06:57,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:06:57,713 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 [2024-11-14 04:06:57,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:06:57,714 INFO L225 Difference]: With dead ends: 29 [2024-11-14 04:06:57,714 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 04:06:57,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:06:57,715 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 24 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:06:57,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 70 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:06:57,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 04:06:57,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 04:06:57,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:06:57,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 04:06:57,718 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2024-11-14 04:06:57,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:06:57,718 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 04:06:57,718 INFO L472 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) [2024-11-14 04:06:57,719 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 04:06:57,719 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 04:06:57,723 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2024-11-14 04:06:57,724 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2024-11-14 04:06:57,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-14 04:06:57,728 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:06:57,731 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:06:57,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:06:57 BoogieIcfgContainer [2024-11-14 04:06:57,740 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:06:57,740 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:06:57,740 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:06:57,741 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:06:57,741 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:06:55" (3/4) ... [2024-11-14 04:06:57,744 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 04:06:57,759 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2024-11-14 04:06:57,760 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-14 04:06:57,760 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 04:06:57,761 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 04:06:57,869 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43e04c8-84a7-489f-939f-dc07cf583a34/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 04:06:57,869 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43e04c8-84a7-489f-939f-dc07cf583a34/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 04:06:57,870 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:06:57,871 INFO L158 Benchmark]: Toolchain (without parser) took 4061.62ms. Allocated memory is still 109.1MB. Free memory was 84.4MB in the beginning and 42.2MB in the end (delta: 42.2MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2024-11-14 04:06:57,871 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 83.9MB. Free memory is still 40.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:06:57,871 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.12ms. Allocated memory is still 109.1MB. Free memory was 84.0MB in the beginning and 72.3MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:06:57,872 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.28ms. Allocated memory is still 109.1MB. Free memory was 72.3MB in the beginning and 71.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:06:57,872 INFO L158 Benchmark]: Boogie Preprocessor took 27.97ms. Allocated memory is still 109.1MB. Free memory was 71.1MB in the beginning and 69.9MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:06:57,872 INFO L158 Benchmark]: RCFGBuilder took 820.70ms. Allocated memory is still 109.1MB. Free memory was 69.9MB in the beginning and 45.6MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 04:06:57,873 INFO L158 Benchmark]: TraceAbstraction took 2712.48ms. Allocated memory is still 109.1MB. Free memory was 44.7MB in the beginning and 48.3MB in the end (delta: -3.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:06:57,873 INFO L158 Benchmark]: Witness Printer took 129.28ms. Allocated memory is still 109.1MB. Free memory was 48.3MB in the beginning and 42.2MB in the end (delta: 6.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:06:57,875 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 83.9MB. Free memory is still 40.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.12ms. Allocated memory is still 109.1MB. Free memory was 84.0MB in the beginning and 72.3MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.28ms. Allocated memory is still 109.1MB. Free memory was 72.3MB in the beginning and 71.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.97ms. Allocated memory is still 109.1MB. Free memory was 71.1MB in the beginning and 69.9MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 820.70ms. Allocated memory is still 109.1MB. Free memory was 69.9MB in the beginning and 45.6MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2712.48ms. Allocated memory is still 109.1MB. Free memory was 44.7MB in the beginning and 48.3MB in the end (delta: -3.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 129.28ms. Allocated memory is still 109.1MB. Free memory was 48.3MB in the beginning and 42.2MB in the end (delta: 6.1MB). There was no memory consumed. 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: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 6]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 493 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 493 mSDsluCounter, 1413 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 798 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 145 IncrementalHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 615 mSDtfsCounter, 145 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 53, 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, 14 MinimizatonAttempts, 187 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 145 ConstructedInterpolants, 0 QuantifiedInterpolants, 645 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-14 04:06:57,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43e04c8-84a7-489f-939f-dc07cf583a34/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE