./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.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_3d635825-2705-455d-b957-37b27bf0d766/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d635825-2705-455d-b957-37b27bf0d766/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_3d635825-2705-455d-b957-37b27bf0d766/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d635825-2705-455d-b957-37b27bf0d766/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d635825-2705-455d-b957-37b27bf0d766/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_3d635825-2705-455d-b957-37b27bf0d766/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 de5a591efb40e891e226106d8590a7409596f3a27aca8b697af826abd4fe5201 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 02:43:04,210 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 02:43:04,318 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d635825-2705-455d-b957-37b27bf0d766/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-14 02:43:04,327 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 02:43:04,327 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 02:43:04,375 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 02:43:04,376 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 02:43:04,377 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 02:43:04,378 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 02:43:04,378 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 02:43:04,379 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 02:43:04,380 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 02:43:04,380 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 02:43:04,380 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 02:43:04,380 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 02:43:04,381 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 02:43:04,381 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 02:43:04,381 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 02:43:04,381 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 02:43:04,381 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 02:43:04,382 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 02:43:04,382 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 02:43:04,382 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 02:43:04,382 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 02:43:04,383 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 02:43:04,383 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 02:43:04,383 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 02:43:04,384 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 02:43:04,384 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 02:43:04,384 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 02:43:04,384 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 02:43:04,384 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-14 02:43:04,384 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 02:43:04,384 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 02:43:04,384 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 02:43:04,384 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 02:43:04,384 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 02:43:04,384 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 02:43:04,385 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 02:43:04,385 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 02:43:04,385 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 02:43:04,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:43:04,385 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 02:43:04,385 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 02:43:04,385 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 02:43:04,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 02:43:04,385 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 02:43:04,385 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 02:43:04,386 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 02:43:04,386 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_3d635825-2705-455d-b957-37b27bf0d766/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 -> de5a591efb40e891e226106d8590a7409596f3a27aca8b697af826abd4fe5201 [2024-11-14 02:43:04,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 02:43:04,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 02:43:04,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 02:43:04,766 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 02:43:04,766 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 02:43:04,769 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d635825-2705-455d-b957-37b27bf0d766/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c Unable to find full path for "g++" [2024-11-14 02:43:06,818 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 02:43:07,107 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 02:43:07,108 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d635825-2705-455d-b957-37b27bf0d766/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2024-11-14 02:43:07,121 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d635825-2705-455d-b957-37b27bf0d766/bin/utaipan-verify-sOmjnqqW8E/data/59ed841dd/0c93a78f56a94c6b8754657f671ac76b/FLAG22c986123 [2024-11-14 02:43:07,142 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d635825-2705-455d-b957-37b27bf0d766/bin/utaipan-verify-sOmjnqqW8E/data/59ed841dd/0c93a78f56a94c6b8754657f671ac76b [2024-11-14 02:43:07,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 02:43:07,146 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 02:43:07,148 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 02:43:07,148 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 02:43:07,154 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 02:43:07,156 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:43:07" (1/1) ... [2024-11-14 02:43:07,157 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2161f81f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:07, skipping insertion in model container [2024-11-14 02:43:07,157 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:43:07" (1/1) ... [2024-11-14 02:43:07,205 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 02:43:07,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:43:07,622 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 02:43:07,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:43:07,801 INFO L204 MainTranslator]: Completed translation [2024-11-14 02:43:07,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:07 WrapperNode [2024-11-14 02:43:07,803 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 02:43:07,804 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 02:43:07,804 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 02:43:07,805 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 02:43:07,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:07" (1/1) ... [2024-11-14 02:43:07,833 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:07" (1/1) ... [2024-11-14 02:43:07,920 INFO L138 Inliner]: procedures = 18, calls = 293, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 835 [2024-11-14 02:43:07,921 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 02:43:07,921 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 02:43:07,921 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 02:43:07,921 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 02:43:07,940 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:07" (1/1) ... [2024-11-14 02:43:07,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:07" (1/1) ... [2024-11-14 02:43:07,948 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:07" (1/1) ... [2024-11-14 02:43:07,949 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:07" (1/1) ... [2024-11-14 02:43:07,975 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:07" (1/1) ... [2024-11-14 02:43:07,984 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:07" (1/1) ... [2024-11-14 02:43:07,987 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:07" (1/1) ... [2024-11-14 02:43:07,993 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:07" (1/1) ... [2024-11-14 02:43:08,006 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 02:43:08,011 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 02:43:08,011 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 02:43:08,012 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 02:43:08,013 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:07" (1/1) ... [2024-11-14 02:43:08,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:43:08,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d635825-2705-455d-b957-37b27bf0d766/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:43:08,058 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d635825-2705-455d-b957-37b27bf0d766/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 02:43:08,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d635825-2705-455d-b957-37b27bf0d766/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 02:43:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 02:43:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 02:43:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 02:43:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 02:43:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 02:43:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 02:43:08,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 02:43:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 02:43:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 02:43:08,338 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 02:43:08,341 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 02:43:13,075 INFO L? ?]: Removed 328 outVars from TransFormulas that were not future-live. [2024-11-14 02:43:13,075 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 02:43:13,347 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 02:43:13,350 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 02:43:13,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:43:13 BoogieIcfgContainer [2024-11-14 02:43:13,351 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 02:43:13,353 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 02:43:13,356 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 02:43:13,364 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 02:43:13,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 02:43:07" (1/3) ... [2024-11-14 02:43:13,365 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4950d390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:43:13, skipping insertion in model container [2024-11-14 02:43:13,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:07" (2/3) ... [2024-11-14 02:43:13,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4950d390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:43:13, skipping insertion in model container [2024-11-14 02:43:13,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:43:13" (3/3) ... [2024-11-14 02:43:13,367 INFO L112 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lhb-reducer.c [2024-11-14 02:43:13,388 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 02:43:13,390 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG aiob_4.c.v+lhb-reducer.c that has 1 procedures, 202 locations, 1 initial locations, 0 loop locations, and 104 error locations. [2024-11-14 02:43:13,450 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 02:43:13,465 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;@99a5359, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 02:43:13,465 INFO L334 AbstractCegarLoop]: Starting to check reachability of 104 error locations. [2024-11-14 02:43:13,470 INFO L276 IsEmpty]: Start isEmpty. Operand has 202 states, 97 states have (on average 2.5051546391752577) internal successors, (243), 201 states have internal predecessors, (243), 0 states have call successors, (0), 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 02:43:13,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 02:43:13,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:43:13,478 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 02:43:13,479 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr103ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:43:13,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:43:13,485 INFO L85 PathProgramCache]: Analyzing trace with hash 472420, now seen corresponding path program 1 times [2024-11-14 02:43:13,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:43:13,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107770948] [2024-11-14 02:43:13,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:13,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:43:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:43:13,957 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 02:43:13,957 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:43:13,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107770948] [2024-11-14 02:43:13,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107770948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:43:13,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:43:13,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 02:43:13,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146924525] [2024-11-14 02:43:13,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:43:13,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 02:43:13,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:43:14,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 02:43:14,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:43:14,011 INFO L87 Difference]: Start difference. First operand has 202 states, 97 states have (on average 2.5051546391752577) internal successors, (243), 201 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 02:43:17,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:43:19,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:43:21,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:43:22,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:43:22,459 INFO L93 Difference]: Finished difference Result 203 states and 233 transitions. [2024-11-14 02:43:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 02:43:22,461 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2024-11-14 02:43:22,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:43:22,472 INFO L225 Difference]: With dead ends: 203 [2024-11-14 02:43:22,472 INFO L226 Difference]: Without dead ends: 201 [2024-11-14 02:43:22,473 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:43:22,477 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 123 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-11-14 02:43:22,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 295 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2024-11-14 02:43:22,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-11-14 02:43:22,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2024-11-14 02:43:22,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 97 states have (on average 2.3711340206185567) internal successors, (230), 200 states have internal predecessors, (230), 0 states have call successors, (0), 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 02:43:22,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 230 transitions. [2024-11-14 02:43:22,533 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 230 transitions. Word has length 3 [2024-11-14 02:43:22,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:43:22,533 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 230 transitions. [2024-11-14 02:43:22,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 02:43:22,534 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 230 transitions. [2024-11-14 02:43:22,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 02:43:22,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:43:22,535 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 02:43:22,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 02:43:22,535 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:43:22,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:43:22,537 INFO L85 PathProgramCache]: Analyzing trace with hash 472077, now seen corresponding path program 1 times [2024-11-14 02:43:22,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:43:22,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15307113] [2024-11-14 02:43:22,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:22,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:43:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:43:23,290 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 02:43:23,291 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:43:23,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15307113] [2024-11-14 02:43:23,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15307113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:43:23,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:43:23,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 02:43:23,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893504433] [2024-11-14 02:43:23,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:43:23,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 02:43:23,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:43:23,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 02:43:23,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:43:23,298 INFO L87 Difference]: Start difference. First operand 201 states and 230 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 02:43:26,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:43:28,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:43:29,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:43:29,741 INFO L93 Difference]: Finished difference Result 160 states and 189 transitions. [2024-11-14 02:43:29,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 02:43:29,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2024-11-14 02:43:29,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:43:29,743 INFO L225 Difference]: With dead ends: 160 [2024-11-14 02:43:29,743 INFO L226 Difference]: Without dead ends: 160 [2024-11-14 02:43:29,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:43:29,745 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 196 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 41 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-14 02:43:29,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 109 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 257 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2024-11-14 02:43:29,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-14 02:43:29,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2024-11-14 02:43:29,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 97 states have (on average 1.9484536082474226) internal successors, (189), 159 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:43:29,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 189 transitions. [2024-11-14 02:43:29,758 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 189 transitions. Word has length 3 [2024-11-14 02:43:29,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:43:29,759 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 189 transitions. [2024-11-14 02:43:29,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 02:43:29,759 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 189 transitions. [2024-11-14 02:43:29,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 02:43:29,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:43:29,760 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 02:43:29,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 02:43:29,760 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:43:29,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:43:29,762 INFO L85 PathProgramCache]: Analyzing trace with hash 472078, now seen corresponding path program 1 times [2024-11-14 02:43:29,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:43:29,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937814626] [2024-11-14 02:43:29,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:29,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:43:29,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:43:30,460 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 02:43:30,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:43:30,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937814626] [2024-11-14 02:43:30,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937814626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:43:30,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:43:30,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 02:43:30,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118351143] [2024-11-14 02:43:30,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:43:30,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 02:43:30,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:43:30,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 02:43:30,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:43:30,462 INFO L87 Difference]: Start difference. First operand 160 states and 189 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 02:43:33,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:43:35,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:43:37,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:43:38,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:43:38,426 INFO L93 Difference]: Finished difference Result 119 states and 148 transitions. [2024-11-14 02:43:38,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 02:43:38,427 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2024-11-14 02:43:38,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:43:38,428 INFO L225 Difference]: With dead ends: 119 [2024-11-14 02:43:38,428 INFO L226 Difference]: Without dead ends: 119 [2024-11-14 02:43:38,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:43:38,429 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 40 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 40 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-11-14 02:43:38,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 245 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 154 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2024-11-14 02:43:38,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-14 02:43:38,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-11-14 02:43:38,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 97 states have (on average 1.5257731958762886) internal successors, (148), 118 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:43:38,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 148 transitions. [2024-11-14 02:43:38,438 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 148 transitions. Word has length 3 [2024-11-14 02:43:38,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:43:38,438 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 148 transitions. [2024-11-14 02:43:38,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 02:43:38,439 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 148 transitions. [2024-11-14 02:43:38,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-14 02:43:38,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:43:38,440 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:43:38,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 02:43:38,440 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr103ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:43:38,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:43:38,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1022535160, now seen corresponding path program 1 times [2024-11-14 02:43:38,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:43:38,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443444249] [2024-11-14 02:43:38,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:38,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:43:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:43:45,218 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 02:43:45,218 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:43:45,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443444249] [2024-11-14 02:43:45,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443444249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:43:45,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:43:45,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:43:45,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816894648] [2024-11-14 02:43:45,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:43:45,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:43:45,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:43:45,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:43:45,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:43:45,220 INFO L87 Difference]: Start difference. First operand 119 states and 148 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 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 02:43:47,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:43:48,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:43:48,180 INFO L93 Difference]: Finished difference Result 121 states and 148 transitions. [2024-11-14 02:43:48,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:43:48,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 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) Word has length 46 [2024-11-14 02:43:48,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:43:48,182 INFO L225 Difference]: With dead ends: 121 [2024-11-14 02:43:48,182 INFO L226 Difference]: Without dead ends: 121 [2024-11-14 02:43:48,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:43:48,184 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 49 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-14 02:43:48,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 163 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2024-11-14 02:43:48,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-14 02:43:48,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 119. [2024-11-14 02:43:48,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 97 states have (on average 1.5154639175257731) internal successors, (147), 118 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:43:48,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 147 transitions. [2024-11-14 02:43:48,192 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 147 transitions. Word has length 46 [2024-11-14 02:43:48,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:43:48,193 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 147 transitions. [2024-11-14 02:43:48,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 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 02:43:48,193 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 147 transitions. [2024-11-14 02:43:48,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-14 02:43:48,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:43:48,194 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:43:48,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 02:43:48,195 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr103ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:43:48,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:43:48,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1633588135, now seen corresponding path program 1 times [2024-11-14 02:43:48,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:43:48,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143492675] [2024-11-14 02:43:48,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:48,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:43:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:43:54,365 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 02:43:54,365 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:43:54,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143492675] [2024-11-14 02:43:54,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143492675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:43:54,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:43:54,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:43:54,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229010844] [2024-11-14 02:43:54,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:43:54,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:43:54,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:43:54,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:43:54,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:43:54,368 INFO L87 Difference]: Start difference. First operand 119 states and 147 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 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 02:43:57,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:43:59,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:43:59,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:43:59,595 INFO L93 Difference]: Finished difference Result 119 states and 146 transitions. [2024-11-14 02:43:59,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:43:59,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 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) Word has length 47 [2024-11-14 02:43:59,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:43:59,597 INFO L225 Difference]: With dead ends: 119 [2024-11-14 02:43:59,597 INFO L226 Difference]: Without dead ends: 119 [2024-11-14 02:43:59,597 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:43:59,598 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 0 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:43:59,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 205 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 2 Unknown, 0 Unchecked, 5.2s Time] [2024-11-14 02:43:59,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-14 02:43:59,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-11-14 02:43:59,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 97 states have (on average 1.5051546391752577) internal successors, (146), 118 states have internal predecessors, (146), 0 states have call successors, (0), 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 02:43:59,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 146 transitions. [2024-11-14 02:43:59,606 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 146 transitions. Word has length 47 [2024-11-14 02:43:59,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:43:59,606 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 146 transitions. [2024-11-14 02:43:59,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 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 02:43:59,606 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 146 transitions. [2024-11-14 02:43:59,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-14 02:43:59,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:43:59,607 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:43:59,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 02:43:59,608 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:43:59,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:43:59,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1633587967, now seen corresponding path program 1 times [2024-11-14 02:43:59,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:43:59,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385808431] [2024-11-14 02:43:59,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:59,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:44:04,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:05,425 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 02:44:05,425 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:44:05,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385808431] [2024-11-14 02:44:05,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385808431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:44:05,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:44:05,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:44:05,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369229902] [2024-11-14 02:44:05,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:44:05,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 02:44:05,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:44:05,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 02:44:05,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:44:05,429 INFO L87 Difference]: Start difference. First operand 119 states and 146 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 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 02:44:08,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:44:10,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:44:11,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:44:11,988 INFO L93 Difference]: Finished difference Result 118 states and 145 transitions. [2024-11-14 02:44:11,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 02:44:11,989 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 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) Word has length 47 [2024-11-14 02:44:11,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:44:11,990 INFO L225 Difference]: With dead ends: 118 [2024-11-14 02:44:11,990 INFO L226 Difference]: Without dead ends: 118 [2024-11-14 02:44:11,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:44:11,991 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 71 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-14 02:44:11,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 90 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2024-11-14 02:44:11,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-14 02:44:11,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-11-14 02:44:12,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 97 states have (on average 1.4948453608247423) internal successors, (145), 117 states have internal predecessors, (145), 0 states have call successors, (0), 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 02:44:12,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 145 transitions. [2024-11-14 02:44:12,004 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 145 transitions. Word has length 47 [2024-11-14 02:44:12,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:44:12,005 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 145 transitions. [2024-11-14 02:44:12,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 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 02:44:12,005 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 145 transitions. [2024-11-14 02:44:12,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-14 02:44:12,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:12,006 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:44:12,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 02:44:12,006 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr83REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:44:12,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:12,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1633587968, now seen corresponding path program 1 times [2024-11-14 02:44:12,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:44:12,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204994439] [2024-11-14 02:44:12,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:12,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:44:17,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:18,650 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 02:44:18,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:44:18,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204994439] [2024-11-14 02:44:18,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204994439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:44:18,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:44:18,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 02:44:18,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370627978] [2024-11-14 02:44:18,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:44:18,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:44:18,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:44:18,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:44:18,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:44:18,653 INFO L87 Difference]: Start difference. First operand 118 states and 145 transitions. Second operand has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 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 02:44:22,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:44:24,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:44:26,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:44:26,357 INFO L93 Difference]: Finished difference Result 117 states and 144 transitions. [2024-11-14 02:44:26,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:44:26,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 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) Word has length 47 [2024-11-14 02:44:26,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:44:26,359 INFO L225 Difference]: With dead ends: 117 [2024-11-14 02:44:26,359 INFO L226 Difference]: Without dead ends: 117 [2024-11-14 02:44:26,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:44:26,360 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 112 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-11-14 02:44:26,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 103 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 345 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2024-11-14 02:44:26,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-14 02:44:26,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2024-11-14 02:44:26,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 97 states have (on average 1.4845360824742269) internal successors, (144), 116 states have internal predecessors, (144), 0 states have call successors, (0), 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 02:44:26,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 144 transitions. [2024-11-14 02:44:26,366 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 144 transitions. Word has length 47 [2024-11-14 02:44:26,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:44:26,367 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 144 transitions. [2024-11-14 02:44:26,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 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 02:44:26,367 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 144 transitions. [2024-11-14 02:44:26,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-14 02:44:26,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:26,368 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:44:26,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 02:44:26,369 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr103ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:44:26,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:26,370 INFO L85 PathProgramCache]: Analyzing trace with hash -2079981948, now seen corresponding path program 1 times [2024-11-14 02:44:26,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:44:26,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549606234] [2024-11-14 02:44:26,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:26,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:44:32,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:40,408 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 02:44:40,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:44:40,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549606234] [2024-11-14 02:44:40,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549606234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:44:40,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:44:40,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 02:44:40,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349766801] [2024-11-14 02:44:40,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:44:40,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:44:40,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:44:40,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:44:40,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:44:40,410 INFO L87 Difference]: Start difference. First operand 117 states and 144 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 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 02:44:43,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:44:45,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:44:48,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:44:49,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:44:49,285 INFO L93 Difference]: Finished difference Result 117 states and 143 transitions. [2024-11-14 02:44:49,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:44:49,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 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) Word has length 49 [2024-11-14 02:44:49,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:44:49,287 INFO L225 Difference]: With dead ends: 117 [2024-11-14 02:44:49,287 INFO L226 Difference]: Without dead ends: 117 [2024-11-14 02:44:49,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:44:49,289 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 2 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2024-11-14 02:44:49,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 315 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 3 Unknown, 0 Unchecked, 8.7s Time] [2024-11-14 02:44:49,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-14 02:44:49,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2024-11-14 02:44:49,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 97 states have (on average 1.4742268041237114) internal successors, (143), 116 states have internal predecessors, (143), 0 states have call successors, (0), 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 02:44:49,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 143 transitions. [2024-11-14 02:44:49,294 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 143 transitions. Word has length 49 [2024-11-14 02:44:49,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:44:49,295 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 143 transitions. [2024-11-14 02:44:49,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 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 02:44:49,295 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 143 transitions. [2024-11-14 02:44:49,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-14 02:44:49,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:49,296 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:44:49,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 02:44:49,296 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr103ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:44:49,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:49,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1709614773, now seen corresponding path program 1 times [2024-11-14 02:44:49,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:44:49,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048209185] [2024-11-14 02:44:49,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:49,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:44:54,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:55,002 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 02:44:55,003 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:44:55,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048209185] [2024-11-14 02:44:55,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048209185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:44:55,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:44:55,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 02:44:55,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640856895] [2024-11-14 02:44:55,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:44:55,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:44:55,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:44:55,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:44:55,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:44:55,007 INFO L87 Difference]: Start difference. First operand 117 states and 143 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 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 02:44:57,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:44:58,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:44:58,423 INFO L93 Difference]: Finished difference Result 119 states and 143 transitions. [2024-11-14 02:44:58,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 02:44:58,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 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) Word has length 51 [2024-11-14 02:44:58,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:44:58,425 INFO L225 Difference]: With dead ends: 119 [2024-11-14 02:44:58,425 INFO L226 Difference]: Without dead ends: 119 [2024-11-14 02:44:58,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:44:58,426 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 53 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-14 02:44:58,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 232 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2024-11-14 02:44:58,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-14 02:44:58,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2024-11-14 02:44:58,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 97 states have (on average 1.4639175257731958) internal successors, (142), 116 states have internal predecessors, (142), 0 states have call successors, (0), 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 02:44:58,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 142 transitions. [2024-11-14 02:44:58,433 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 142 transitions. Word has length 51 [2024-11-14 02:44:58,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:44:58,434 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 142 transitions. [2024-11-14 02:44:58,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 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 02:44:58,435 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 142 transitions. [2024-11-14 02:44:58,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-14 02:44:58,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:58,436 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:44:58,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 02:44:58,436 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr103ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:44:58,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:58,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1458658534, now seen corresponding path program 1 times [2024-11-14 02:44:58,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:44:58,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464765532] [2024-11-14 02:44:58,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:58,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:45:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:45:04,884 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 02:45:04,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:45:04,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464765532] [2024-11-14 02:45:04,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464765532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:45:04,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:45:04,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 02:45:04,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153863347] [2024-11-14 02:45:04,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:45:04,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 02:45:04,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:45:04,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 02:45:04,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:45:04,887 INFO L87 Difference]: Start difference. First operand 117 states and 142 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 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 02:45:07,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:45:10,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:45:12,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:45:12,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:45:12,634 INFO L93 Difference]: Finished difference Result 117 states and 141 transitions. [2024-11-14 02:45:12,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 02:45:12,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 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) Word has length 52 [2024-11-14 02:45:12,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:45:12,636 INFO L225 Difference]: With dead ends: 117 [2024-11-14 02:45:12,636 INFO L226 Difference]: Without dead ends: 117 [2024-11-14 02:45:12,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:45:12,638 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 0 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-11-14 02:45:12,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 289 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2024-11-14 02:45:12,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-14 02:45:12,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2024-11-14 02:45:12,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 97 states have (on average 1.4536082474226804) internal successors, (141), 116 states have internal predecessors, (141), 0 states have call successors, (0), 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 02:45:12,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 141 transitions. [2024-11-14 02:45:12,643 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 141 transitions. Word has length 52 [2024-11-14 02:45:12,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:45:12,644 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 141 transitions. [2024-11-14 02:45:12,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 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 02:45:12,644 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 141 transitions. [2024-11-14 02:45:12,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-14 02:45:12,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:45:12,645 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:45:12,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 02:45:12,646 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr84REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:45:12,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:45:12,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1458658685, now seen corresponding path program 1 times [2024-11-14 02:45:12,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:45:12,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288252002] [2024-11-14 02:45:12,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:45:12,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:45:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:45:19,123 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 02:45:19,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:45:19,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288252002] [2024-11-14 02:45:19,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288252002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:45:19,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:45:19,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 02:45:19,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869184065] [2024-11-14 02:45:19,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:45:19,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:45:19,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:45:19,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:45:19,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:45:19,126 INFO L87 Difference]: Start difference. First operand 117 states and 141 transitions. Second operand has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 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 02:45:22,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:45:24,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:45:27,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:45:28,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:45:28,855 INFO L93 Difference]: Finished difference Result 116 states and 140 transitions. [2024-11-14 02:45:28,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:45:28,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 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) Word has length 52 [2024-11-14 02:45:28,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:45:28,856 INFO L225 Difference]: With dead ends: 116 [2024-11-14 02:45:28,856 INFO L226 Difference]: Without dead ends: 116 [2024-11-14 02:45:28,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:45:28,857 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 67 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2024-11-14 02:45:28,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 131 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 352 Invalid, 3 Unknown, 0 Unchecked, 9.6s Time] [2024-11-14 02:45:28,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-14 02:45:28,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-14 02:45:28,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 97 states have (on average 1.443298969072165) internal successors, (140), 115 states have internal predecessors, (140), 0 states have call successors, (0), 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 02:45:28,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 140 transitions. [2024-11-14 02:45:28,862 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 140 transitions. Word has length 52 [2024-11-14 02:45:28,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:45:28,863 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 140 transitions. [2024-11-14 02:45:28,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 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 02:45:28,863 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 140 transitions. [2024-11-14 02:45:28,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-14 02:45:28,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:45:28,864 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:45:28,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 02:45:28,864 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr85REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:45:28,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:45:28,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1458658684, now seen corresponding path program 1 times [2024-11-14 02:45:28,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:45:28,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447329594] [2024-11-14 02:45:28,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:45:28,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:45:34,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:45:35,921 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 02:45:35,921 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:45:35,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447329594] [2024-11-14 02:45:35,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447329594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:45:35,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:45:35,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 02:45:35,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645563111] [2024-11-14 02:45:35,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:45:35,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:45:35,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:45:35,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:45:35,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:45:35,924 INFO L87 Difference]: Start difference. First operand 116 states and 140 transitions. Second operand has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 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 02:45:39,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:45:41,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:45:43,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:45:43,533 INFO L93 Difference]: Finished difference Result 115 states and 139 transitions. [2024-11-14 02:45:43,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:45:43,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 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) Word has length 52 [2024-11-14 02:45:43,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:45:43,534 INFO L225 Difference]: With dead ends: 115 [2024-11-14 02:45:43,534 INFO L226 Difference]: Without dead ends: 115 [2024-11-14 02:45:43,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:45:43,535 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 104 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-11-14 02:45:43,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 100 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 332 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2024-11-14 02:45:43,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-14 02:45:43,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-11-14 02:45:43,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 97 states have (on average 1.4329896907216495) internal successors, (139), 114 states have internal predecessors, (139), 0 states have call successors, (0), 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 02:45:43,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 139 transitions. [2024-11-14 02:45:43,539 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 139 transitions. Word has length 52 [2024-11-14 02:45:43,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:45:43,539 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 139 transitions. [2024-11-14 02:45:43,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 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 02:45:43,539 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 139 transitions. [2024-11-14 02:45:43,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-14 02:45:43,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:45:43,540 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:45:43,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-14 02:45:43,540 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr103ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:45:43,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:45:43,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1611645874, now seen corresponding path program 1 times [2024-11-14 02:45:43,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:45:43,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723888686] [2024-11-14 02:45:43,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:45:43,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:45:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:45:55,504 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 02:45:55,504 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:45:55,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723888686] [2024-11-14 02:45:55,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723888686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:45:55,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:45:55,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 02:45:55,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755522133] [2024-11-14 02:45:55,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:45:55,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 02:45:55,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:45:55,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 02:45:55,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:45:55,506 INFO L87 Difference]: Start difference. First operand 115 states and 139 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 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 02:45:59,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:46:01,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:46:03,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:46:06,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:46:08,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:46:08,568 INFO L93 Difference]: Finished difference Result 115 states and 138 transitions. [2024-11-14 02:46:08,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 02:46:08,569 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2024-11-14 02:46:08,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:46:08,570 INFO L225 Difference]: With dead ends: 115 [2024-11-14 02:46:08,570 INFO L226 Difference]: Without dead ends: 115 [2024-11-14 02:46:08,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-14 02:46:08,571 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 4 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2024-11-14 02:46:08,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 354 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 453 Invalid, 4 Unknown, 0 Unchecked, 12.8s Time] [2024-11-14 02:46:08,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-14 02:46:08,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-11-14 02:46:08,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 97 states have (on average 1.422680412371134) internal successors, (138), 114 states have internal predecessors, (138), 0 states have call successors, (0), 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 02:46:08,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 138 transitions. [2024-11-14 02:46:08,578 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 138 transitions. Word has length 54 [2024-11-14 02:46:08,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:46:08,579 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 138 transitions. [2024-11-14 02:46:08,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 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 02:46:08,579 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 138 transitions. [2024-11-14 02:46:08,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-14 02:46:08,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:46:08,580 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:46:08,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 02:46:08,581 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr103ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:46:08,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:46:08,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1685454901, now seen corresponding path program 1 times [2024-11-14 02:46:08,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:46:08,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333305415] [2024-11-14 02:46:08,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:46:08,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:46:15,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:46:15,907 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 02:46:15,908 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:46:15,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333305415] [2024-11-14 02:46:15,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333305415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:46:15,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:46:15,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 02:46:15,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360359194] [2024-11-14 02:46:15,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:46:15,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 02:46:15,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:46:15,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 02:46:15,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 02:46:15,910 INFO L87 Difference]: Start difference. First operand 115 states and 138 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 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 02:46:19,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:46:21,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:46:22,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:46:22,150 INFO L93 Difference]: Finished difference Result 117 states and 138 transitions. [2024-11-14 02:46:22,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:46:22,150 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 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) Word has length 56 [2024-11-14 02:46:22,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:46:22,151 INFO L225 Difference]: With dead ends: 117 [2024-11-14 02:46:22,151 INFO L226 Difference]: Without dead ends: 117 [2024-11-14 02:46:22,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:46:22,152 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 57 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:46:22,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 297 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2024-11-14 02:46:22,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-14 02:46:22,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2024-11-14 02:46:22,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 97 states have (on average 1.4123711340206186) internal successors, (137), 114 states have internal predecessors, (137), 0 states have call successors, (0), 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 02:46:22,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 137 transitions. [2024-11-14 02:46:22,157 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 137 transitions. Word has length 56 [2024-11-14 02:46:22,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:46:22,158 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 137 transitions. [2024-11-14 02:46:22,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 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 02:46:22,158 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 137 transitions. [2024-11-14 02:46:22,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-14 02:46:22,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:46:22,159 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:46:22,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-14 02:46:22,159 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr103ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:46:22,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:46:22,160 INFO L85 PathProgramCache]: Analyzing trace with hash 709308886, now seen corresponding path program 1 times [2024-11-14 02:46:22,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:46:22,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933603288] [2024-11-14 02:46:22,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:46:22,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:46:26,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:46:27,313 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 02:46:27,314 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:46:27,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933603288] [2024-11-14 02:46:27,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933603288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:46:27,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:46:27,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 02:46:27,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297851445] [2024-11-14 02:46:27,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:46:27,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 02:46:27,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:46:27,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 02:46:27,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:46:27,316 INFO L87 Difference]: Start difference. First operand 115 states and 137 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 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 02:46:30,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:46:32,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:46:34,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:46:34,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:46:34,918 INFO L93 Difference]: Finished difference Result 115 states and 136 transitions. [2024-11-14 02:46:34,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 02:46:34,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-14 02:46:34,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:46:34,919 INFO L225 Difference]: With dead ends: 115 [2024-11-14 02:46:34,919 INFO L226 Difference]: Without dead ends: 115 [2024-11-14 02:46:34,920 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:46:34,920 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-11-14 02:46:34,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 274 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2024-11-14 02:46:34,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-14 02:46:34,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-11-14 02:46:34,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 97 states have (on average 1.402061855670103) internal successors, (136), 114 states have internal predecessors, (136), 0 states have call successors, (0), 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 02:46:34,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 136 transitions. [2024-11-14 02:46:34,926 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 136 transitions. Word has length 57 [2024-11-14 02:46:34,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:46:34,927 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 136 transitions. [2024-11-14 02:46:34,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 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 02:46:34,927 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 136 transitions. [2024-11-14 02:46:34,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-14 02:46:34,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:46:34,928 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:46:34,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-14 02:46:34,929 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr86REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:46:34,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:46:34,930 INFO L85 PathProgramCache]: Analyzing trace with hash 709308752, now seen corresponding path program 1 times [2024-11-14 02:46:34,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:46:34,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218500088] [2024-11-14 02:46:34,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:46:34,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:46:40,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:46:41,225 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 02:46:41,226 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:46:41,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218500088] [2024-11-14 02:46:41,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218500088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:46:41,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:46:41,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 02:46:41,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125555619] [2024-11-14 02:46:41,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:46:41,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:46:41,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:46:41,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:46:41,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:46:41,228 INFO L87 Difference]: Start difference. First operand 115 states and 136 transitions. Second operand has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 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 02:46:44,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:46:47,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:46:49,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:46:50,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:46:50,578 INFO L93 Difference]: Finished difference Result 114 states and 135 transitions. [2024-11-14 02:46:50,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:46:50,578 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-14 02:46:50,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:46:50,579 INFO L225 Difference]: With dead ends: 114 [2024-11-14 02:46:50,579 INFO L226 Difference]: Without dead ends: 114 [2024-11-14 02:46:50,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:46:50,580 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 60 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:46:50,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 128 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 337 Invalid, 3 Unknown, 0 Unchecked, 9.2s Time] [2024-11-14 02:46:50,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-14 02:46:50,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-11-14 02:46:50,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 97 states have (on average 1.3917525773195876) internal successors, (135), 113 states have internal predecessors, (135), 0 states have call successors, (0), 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 02:46:50,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 135 transitions. [2024-11-14 02:46:50,585 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 135 transitions. Word has length 57 [2024-11-14 02:46:50,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:46:50,585 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 135 transitions. [2024-11-14 02:46:50,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 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 02:46:50,586 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 135 transitions. [2024-11-14 02:46:50,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-14 02:46:50,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:46:50,586 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:46:50,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-14 02:46:50,587 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr87REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:46:50,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:46:50,587 INFO L85 PathProgramCache]: Analyzing trace with hash 709308753, now seen corresponding path program 1 times [2024-11-14 02:46:50,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:46:50,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308746724] [2024-11-14 02:46:50,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:46:50,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:46:56,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:46:57,821 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 02:46:57,822 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:46:57,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308746724] [2024-11-14 02:46:57,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308746724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:46:57,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:46:57,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 02:46:57,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19730868] [2024-11-14 02:46:57,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:46:57,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 02:46:57,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:46:57,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 02:46:57,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:46:57,824 INFO L87 Difference]: Start difference. First operand 114 states and 135 transitions. Second operand has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 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 02:47:01,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:47:03,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:47:05,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:47:08,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:47:08,379 INFO L93 Difference]: Finished difference Result 113 states and 134 transitions. [2024-11-14 02:47:08,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 02:47:08,380 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-14 02:47:08,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:47:08,381 INFO L225 Difference]: With dead ends: 113 [2024-11-14 02:47:08,381 INFO L226 Difference]: Without dead ends: 113 [2024-11-14 02:47:08,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-14 02:47:08,382 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 98 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:47:08,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 139 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 409 Invalid, 3 Unknown, 0 Unchecked, 10.0s Time] [2024-11-14 02:47:08,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-14 02:47:08,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-11-14 02:47:08,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 97 states have (on average 1.3814432989690721) internal successors, (134), 112 states have internal predecessors, (134), 0 states have call successors, (0), 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 02:47:08,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 134 transitions. [2024-11-14 02:47:08,389 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 134 transitions. Word has length 57 [2024-11-14 02:47:08,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:47:08,389 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 134 transitions. [2024-11-14 02:47:08,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 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 02:47:08,390 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 134 transitions. [2024-11-14 02:47:08,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-14 02:47:08,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:47:08,391 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:47:08,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-14 02:47:08,391 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr103ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:47:08,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:47:08,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1254077663, now seen corresponding path program 1 times [2024-11-14 02:47:08,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:47:08,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632018440] [2024-11-14 02:47:08,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:47:08,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:47:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:47:21,090 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 02:47:21,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:47:21,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632018440] [2024-11-14 02:47:21,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632018440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:47:21,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:47:21,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-14 02:47:21,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580574045] [2024-11-14 02:47:21,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:47:21,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 02:47:21,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:47:21,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 02:47:21,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-14 02:47:21,092 INFO L87 Difference]: Start difference. First operand 113 states and 134 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 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 02:47:25,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:47:27,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:47:30,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:47:32,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:47:34,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:47:36,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:47:39,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:47:39,279 INFO L93 Difference]: Finished difference Result 113 states and 133 transitions. [2024-11-14 02:47:39,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 02:47:39,280 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 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) Word has length 59 [2024-11-14 02:47:39,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:47:39,281 INFO L225 Difference]: With dead ends: 113 [2024-11-14 02:47:39,281 INFO L226 Difference]: Without dead ends: 113 [2024-11-14 02:47:39,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-14 02:47:39,282 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 7 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2024-11-14 02:47:39,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 360 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 544 Invalid, 6 Unknown, 0 Unchecked, 17.8s Time] [2024-11-14 02:47:39,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-14 02:47:39,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-11-14 02:47:39,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 97 states have (on average 1.3711340206185567) internal successors, (133), 112 states have internal predecessors, (133), 0 states have call successors, (0), 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 02:47:39,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 133 transitions. [2024-11-14 02:47:39,287 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 133 transitions. Word has length 59 [2024-11-14 02:47:39,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:47:39,287 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 133 transitions. [2024-11-14 02:47:39,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 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 02:47:39,288 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 133 transitions. [2024-11-14 02:47:39,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-14 02:47:39,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:47:39,289 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:47:39,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-14 02:47:39,289 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr103ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:47:39,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:47:39,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1711823336, now seen corresponding path program 1 times [2024-11-14 02:47:39,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:47:39,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439624590] [2024-11-14 02:47:39,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:47:39,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:47:44,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:47:46,214 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 02:47:46,215 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:47:46,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439624590] [2024-11-14 02:47:46,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439624590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:47:46,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:47:46,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 02:47:46,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614497047] [2024-11-14 02:47:46,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:47:46,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 02:47:46,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:47:46,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 02:47:46,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:47:46,217 INFO L87 Difference]: Start difference. First operand 113 states and 133 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 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 02:47:49,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:47:51,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:47:54,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:47:55,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:47:55,172 INFO L93 Difference]: Finished difference Result 115 states and 133 transitions. [2024-11-14 02:47:55,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 02:47:55,173 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-14 02:47:55,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:47:55,174 INFO L225 Difference]: With dead ends: 115 [2024-11-14 02:47:55,174 INFO L226 Difference]: Without dead ends: 115 [2024-11-14 02:47:55,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-14 02:47:55,174 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 61 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-14 02:47:55,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 340 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 298 Invalid, 3 Unknown, 0 Unchecked, 8.8s Time] [2024-11-14 02:47:55,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-14 02:47:55,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 113. [2024-11-14 02:47:55,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 97 states have (on average 1.3608247422680413) internal successors, (132), 112 states have internal predecessors, (132), 0 states have call successors, (0), 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 02:47:55,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 132 transitions. [2024-11-14 02:47:55,179 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 132 transitions. Word has length 61 [2024-11-14 02:47:55,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:47:55,179 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 132 transitions. [2024-11-14 02:47:55,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 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 02:47:55,180 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 132 transitions. [2024-11-14 02:47:55,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-14 02:47:55,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:47:55,181 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:47:55,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-14 02:47:55,181 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr103ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:47:55,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:47:55,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1526753001, now seen corresponding path program 1 times [2024-11-14 02:47:55,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:47:55,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059968725] [2024-11-14 02:47:55,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:47:55,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:48:00,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:48:01,043 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 02:48:01,043 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:48:01,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059968725] [2024-11-14 02:48:01,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059968725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:48:01,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:48:01,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 02:48:01,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795535522] [2024-11-14 02:48:01,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:48:01,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 02:48:01,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:48:01,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 02:48:01,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:48:01,045 INFO L87 Difference]: Start difference. First operand 113 states and 132 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 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 02:48:04,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:48:06,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:48:08,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:48:08,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:48:08,736 INFO L93 Difference]: Finished difference Result 113 states and 131 transitions. [2024-11-14 02:48:08,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 02:48:08,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-14 02:48:08,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:48:08,737 INFO L225 Difference]: With dead ends: 113 [2024-11-14 02:48:08,737 INFO L226 Difference]: Without dead ends: 113 [2024-11-14 02:48:08,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:48:08,738 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-11-14 02:48:08,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 259 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2024-11-14 02:48:08,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-14 02:48:08,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-11-14 02:48:08,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 97 states have (on average 1.3505154639175259) internal successors, (131), 112 states have internal predecessors, (131), 0 states have call successors, (0), 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 02:48:08,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 131 transitions. [2024-11-14 02:48:08,743 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 131 transitions. Word has length 62 [2024-11-14 02:48:08,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:48:08,743 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 131 transitions. [2024-11-14 02:48:08,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 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 02:48:08,743 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 131 transitions. [2024-11-14 02:48:08,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-14 02:48:08,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:48:08,744 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:48:08,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-14 02:48:08,745 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr88REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:48:08,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:48:08,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1526752884, now seen corresponding path program 1 times [2024-11-14 02:48:08,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:48:08,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249864065] [2024-11-14 02:48:08,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:48:08,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:48:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:48:14,697 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 02:48:14,697 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:48:14,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249864065] [2024-11-14 02:48:14,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249864065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:48:14,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:48:14,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 02:48:14,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042147894] [2024-11-14 02:48:14,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:48:14,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:48:14,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:48:14,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:48:14,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:48:14,699 INFO L87 Difference]: Start difference. First operand 113 states and 131 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 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 02:48:17,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:48:20,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:48:22,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:48:23,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:48:23,795 INFO L93 Difference]: Finished difference Result 112 states and 130 transitions. [2024-11-14 02:48:23,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:48:23,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-14 02:48:23,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:48:23,797 INFO L225 Difference]: With dead ends: 112 [2024-11-14 02:48:23,797 INFO L226 Difference]: Without dead ends: 112 [2024-11-14 02:48:23,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:48:23,797 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 53 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:48:23,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 125 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 322 Invalid, 3 Unknown, 0 Unchecked, 9.0s Time] [2024-11-14 02:48:23,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-14 02:48:23,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-11-14 02:48:23,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 97 states have (on average 1.3402061855670102) internal successors, (130), 111 states have internal predecessors, (130), 0 states have call successors, (0), 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 02:48:23,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 130 transitions. [2024-11-14 02:48:23,802 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 130 transitions. Word has length 62 [2024-11-14 02:48:23,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:48:23,803 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 130 transitions. [2024-11-14 02:48:23,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 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 02:48:23,803 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 130 transitions. [2024-11-14 02:48:23,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-14 02:48:23,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:48:23,804 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:48:23,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-14 02:48:23,804 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr89REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:48:23,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:48:23,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1526752885, now seen corresponding path program 1 times [2024-11-14 02:48:23,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:48:23,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315247797] [2024-11-14 02:48:23,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:48:23,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:48:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:48:30,054 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 02:48:30,054 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:48:30,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315247797] [2024-11-14 02:48:30,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315247797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:48:30,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:48:30,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 02:48:30,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762482663] [2024-11-14 02:48:30,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:48:30,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 02:48:30,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:48:30,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 02:48:30,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 02:48:30,057 INFO L87 Difference]: Start difference. First operand 112 states and 130 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 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 02:48:33,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:48:35,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:48:38,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:48:40,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:48:40,118 INFO L93 Difference]: Finished difference Result 111 states and 129 transitions. [2024-11-14 02:48:40,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 02:48:40,118 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-14 02:48:40,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:48:40,119 INFO L225 Difference]: With dead ends: 111 [2024-11-14 02:48:40,119 INFO L226 Difference]: Without dead ends: 111 [2024-11-14 02:48:40,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-14 02:48:40,121 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 86 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2024-11-14 02:48:40,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 136 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 391 Invalid, 3 Unknown, 0 Unchecked, 9.6s Time] [2024-11-14 02:48:40,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-14 02:48:40,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-14 02:48:40,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 97 states have (on average 1.3298969072164948) internal successors, (129), 110 states have internal predecessors, (129), 0 states have call successors, (0), 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 02:48:40,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 129 transitions. [2024-11-14 02:48:40,128 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 129 transitions. Word has length 62 [2024-11-14 02:48:40,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:48:40,129 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 129 transitions. [2024-11-14 02:48:40,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 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 02:48:40,129 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 129 transitions. [2024-11-14 02:48:40,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-14 02:48:40,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:48:40,130 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:48:40,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-14 02:48:40,130 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr103ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:48:40,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:48:40,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1669282165, now seen corresponding path program 1 times [2024-11-14 02:48:40,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:48:40,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997978817] [2024-11-14 02:48:40,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:48:40,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:48:44,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:48:50,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:48:50,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:48:50,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997978817] [2024-11-14 02:48:50,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997978817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:48:50,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:48:50,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-14 02:48:50,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812670185] [2024-11-14 02:48:50,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:48:50,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 02:48:50,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:48:50,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 02:48:50,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-14 02:48:50,780 INFO L87 Difference]: Start difference. First operand 111 states and 129 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 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 02:48:55,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:48:57,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:48:59,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:49:01,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:49:03,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:49:05,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:49:08,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:49:08,561 INFO L93 Difference]: Finished difference Result 111 states and 128 transitions. [2024-11-14 02:49:08,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 02:49:08,562 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-11-14 02:49:08,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:49:08,563 INFO L225 Difference]: With dead ends: 111 [2024-11-14 02:49:08,563 INFO L226 Difference]: Without dead ends: 111 [2024-11-14 02:49:08,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-14 02:49:08,563 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 4 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2024-11-14 02:49:08,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 362 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 629 Invalid, 6 Unknown, 0 Unchecked, 17.6s Time] [2024-11-14 02:49:08,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-14 02:49:08,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-14 02:49:08,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 97 states have (on average 1.3195876288659794) internal successors, (128), 110 states have internal predecessors, (128), 0 states have call successors, (0), 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 02:49:08,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 128 transitions. [2024-11-14 02:49:08,567 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 128 transitions. Word has length 64 [2024-11-14 02:49:08,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:49:08,568 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 128 transitions. [2024-11-14 02:49:08,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 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 02:49:08,568 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 128 transitions. [2024-11-14 02:49:08,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-14 02:49:08,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:49:08,569 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:49:08,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-14 02:49:08,569 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr103ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:49:08,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:49:08,570 INFO L85 PathProgramCache]: Analyzing trace with hash 2132956786, now seen corresponding path program 1 times [2024-11-14 02:49:08,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:49:08,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926885109] [2024-11-14 02:49:08,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:49:08,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:49:13,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:49:14,403 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 02:49:14,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:49:14,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926885109] [2024-11-14 02:49:14,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926885109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:49:14,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:49:14,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-14 02:49:14,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625010440] [2024-11-14 02:49:14,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:49:14,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 02:49:14,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:49:14,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 02:49:14,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-14 02:49:14,405 INFO L87 Difference]: Start difference. First operand 111 states and 128 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 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 02:49:18,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:49:20,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:49:22,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:49:24,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:49:26,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:49:26,158 INFO L93 Difference]: Finished difference Result 113 states and 128 transitions. [2024-11-14 02:49:26,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 02:49:26,158 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-11-14 02:49:26,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:49:26,159 INFO L225 Difference]: With dead ends: 113 [2024-11-14 02:49:26,159 INFO L226 Difference]: Without dead ends: 113 [2024-11-14 02:49:26,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-14 02:49:26,160 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 63 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2024-11-14 02:49:26,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 402 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 387 Invalid, 4 Unknown, 0 Unchecked, 11.5s Time] [2024-11-14 02:49:26,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-14 02:49:26,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 111. [2024-11-14 02:49:26,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 97 states have (on average 1.309278350515464) internal successors, (127), 110 states have internal predecessors, (127), 0 states have call successors, (0), 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 02:49:26,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 127 transitions. [2024-11-14 02:49:26,164 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 127 transitions. Word has length 66 [2024-11-14 02:49:26,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:49:26,165 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 127 transitions. [2024-11-14 02:49:26,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 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 02:49:26,165 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 127 transitions. [2024-11-14 02:49:26,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-14 02:49:26,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:49:26,166 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:49:26,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-14 02:49:26,166 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr103ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:49:26,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:49:26,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1697010693, now seen corresponding path program 1 times [2024-11-14 02:49:26,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:49:26,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555747401] [2024-11-14 02:49:26,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:49:26,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:49:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:49:30,705 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 02:49:30,705 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:49:30,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555747401] [2024-11-14 02:49:30,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555747401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:49:30,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:49:30,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 02:49:30,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999463468] [2024-11-14 02:49:30,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:49:30,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 02:49:30,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:49:30,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 02:49:30,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:49:30,707 INFO L87 Difference]: Start difference. First operand 111 states and 127 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 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 02:49:33,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:49:35,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:49:37,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:49:38,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:49:38,228 INFO L93 Difference]: Finished difference Result 111 states and 126 transitions. [2024-11-14 02:49:38,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 02:49:38,229 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-11-14 02:49:38,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:49:38,229 INFO L225 Difference]: With dead ends: 111 [2024-11-14 02:49:38,229 INFO L226 Difference]: Without dead ends: 111 [2024-11-14 02:49:38,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:49:38,230 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-11-14 02:49:38,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 244 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2024-11-14 02:49:38,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-14 02:49:38,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-14 02:49:38,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 97 states have (on average 1.2989690721649485) internal successors, (126), 110 states have internal predecessors, (126), 0 states have call successors, (0), 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 02:49:38,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 126 transitions. [2024-11-14 02:49:38,233 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 126 transitions. Word has length 67 [2024-11-14 02:49:38,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:49:38,233 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 126 transitions. [2024-11-14 02:49:38,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 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 02:49:38,233 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 126 transitions. [2024-11-14 02:49:38,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-14 02:49:38,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:49:38,234 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:49:38,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-14 02:49:38,234 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr90REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:49:38,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:49:38,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1697010593, now seen corresponding path program 1 times [2024-11-14 02:49:38,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:49:38,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101829338] [2024-11-14 02:49:38,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:49:38,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:49:42,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:49:43,105 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 02:49:43,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:49:43,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101829338] [2024-11-14 02:49:43,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101829338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:49:43,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:49:43,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 02:49:43,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140405591] [2024-11-14 02:49:43,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:49:43,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:49:43,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:49:43,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:49:43,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:49:43,108 INFO L87 Difference]: Start difference. First operand 111 states and 126 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 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 02:49:46,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:49:48,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:49:50,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:49:51,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:49:51,857 INFO L93 Difference]: Finished difference Result 110 states and 125 transitions. [2024-11-14 02:49:51,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:49:51,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-11-14 02:49:51,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:49:51,858 INFO L225 Difference]: With dead ends: 110 [2024-11-14 02:49:51,858 INFO L226 Difference]: Without dead ends: 110 [2024-11-14 02:49:51,858 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:49:51,859 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 46 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2024-11-14 02:49:51,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 122 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 307 Invalid, 3 Unknown, 0 Unchecked, 8.6s Time] [2024-11-14 02:49:51,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-14 02:49:51,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2024-11-14 02:49:51,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 97 states have (on average 1.288659793814433) internal successors, (125), 109 states have internal predecessors, (125), 0 states have call successors, (0), 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 02:49:51,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 125 transitions. [2024-11-14 02:49:51,862 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 125 transitions. Word has length 67 [2024-11-14 02:49:51,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:49:51,862 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 125 transitions. [2024-11-14 02:49:51,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 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 02:49:51,863 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 125 transitions. [2024-11-14 02:49:51,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-14 02:49:51,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:49:51,863 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:49:51,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-14 02:49:51,863 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr91REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:49:51,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:49:51,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1697010594, now seen corresponding path program 1 times [2024-11-14 02:49:51,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:49:51,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306344261] [2024-11-14 02:49:51,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:49:51,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:49:56,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:49:57,258 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 02:49:57,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:49:57,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306344261] [2024-11-14 02:49:57,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306344261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:49:57,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:49:57,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 02:49:57,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052534461] [2024-11-14 02:49:57,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:49:57,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 02:49:57,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:49:57,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 02:49:57,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 02:49:57,260 INFO L87 Difference]: Start difference. First operand 110 states and 125 transitions. Second operand has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 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 02:50:00,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:50:02,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:50:04,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:50:06,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:06,589 INFO L93 Difference]: Finished difference Result 109 states and 124 transitions. [2024-11-14 02:50:06,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 02:50:06,590 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-11-14 02:50:06,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:06,591 INFO L225 Difference]: With dead ends: 109 [2024-11-14 02:50:06,591 INFO L226 Difference]: Without dead ends: 109 [2024-11-14 02:50:06,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-14 02:50:06,591 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 77 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:06,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 131 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 316 Invalid, 3 Unknown, 0 Unchecked, 8.7s Time] [2024-11-14 02:50:06,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-14 02:50:06,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-14 02:50:06,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 97 states have (on average 1.2783505154639174) internal successors, (124), 108 states have internal predecessors, (124), 0 states have call successors, (0), 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 02:50:06,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 124 transitions. [2024-11-14 02:50:06,594 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 124 transitions. Word has length 67 [2024-11-14 02:50:06,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:06,594 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 124 transitions. [2024-11-14 02:50:06,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 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 02:50:06,594 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 124 transitions. [2024-11-14 02:50:06,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-14 02:50:06,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:06,595 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:50:06,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-14 02:50:06,595 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr103ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:50:06,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:06,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1260381250, now seen corresponding path program 1 times [2024-11-14 02:50:06,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:06,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034386857] [2024-11-14 02:50:06,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:06,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:12,491 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 02:50:12,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:12,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034386857] [2024-11-14 02:50:12,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034386857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:50:12,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:50:12,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 02:50:12,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637357269] [2024-11-14 02:50:12,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:50:12,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 02:50:12,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:12,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 02:50:12,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 02:50:12,493 INFO L87 Difference]: Start difference. First operand 109 states and 124 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 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 02:50:15,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:50:17,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:50:20,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:50:21,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:21,357 INFO L93 Difference]: Finished difference Result 108 states and 123 transitions. [2024-11-14 02:50:21,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:50:21,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-14 02:50:21,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:21,358 INFO L225 Difference]: With dead ends: 108 [2024-11-14 02:50:21,358 INFO L226 Difference]: Without dead ends: 107 [2024-11-14 02:50:21,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 02:50:21,359 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 41 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 15 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:21,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 117 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 307 Invalid, 3 Unknown, 0 Unchecked, 8.9s Time] [2024-11-14 02:50:21,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-14 02:50:21,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-11-14 02:50:21,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 96 states have (on average 1.1145833333333333) internal successors, (107), 106 states have internal predecessors, (107), 0 states have call successors, (0), 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 02:50:21,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 107 transitions. [2024-11-14 02:50:21,363 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 107 transitions. Word has length 69 [2024-11-14 02:50:21,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:21,363 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 107 transitions. [2024-11-14 02:50:21,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 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 02:50:21,363 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 107 transitions. [2024-11-14 02:50:21,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-14 02:50:21,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:21,364 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:50:21,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-14 02:50:21,364 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr92REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:50:21,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:21,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1536285083, now seen corresponding path program 1 times [2024-11-14 02:50:21,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:21,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797459336] [2024-11-14 02:50:21,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:21,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:25,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:26,308 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 02:50:26,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:26,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797459336] [2024-11-14 02:50:26,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797459336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:50:26,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:50:26,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 02:50:26,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575379328] [2024-11-14 02:50:26,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:50:26,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:50:26,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:26,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:50:26,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:50:26,310 INFO L87 Difference]: Start difference. First operand 107 states and 107 transitions. Second operand has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 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 02:50:29,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:50:31,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:50:33,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:50:34,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:34,798 INFO L93 Difference]: Finished difference Result 106 states and 106 transitions. [2024-11-14 02:50:34,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:50:34,798 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-11-14 02:50:34,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:34,799 INFO L225 Difference]: With dead ends: 106 [2024-11-14 02:50:34,799 INFO L226 Difference]: Without dead ends: 106 [2024-11-14 02:50:34,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:50:34,800 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 39 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:34,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 117 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 238 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2024-11-14 02:50:34,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-14 02:50:34,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-11-14 02:50:34,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 96 states have (on average 1.1041666666666667) internal successors, (106), 105 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:50:34,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2024-11-14 02:50:34,804 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 72 [2024-11-14 02:50:34,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:34,804 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2024-11-14 02:50:34,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 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 02:50:34,804 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2024-11-14 02:50:34,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-14 02:50:34,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:34,805 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:50:34,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-14 02:50:34,805 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr93REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:50:34,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:34,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1536285082, now seen corresponding path program 1 times [2024-11-14 02:50:34,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:34,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976133161] [2024-11-14 02:50:34,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:34,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:40,692 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 02:50:40,692 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:40,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976133161] [2024-11-14 02:50:40,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976133161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:50:40,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:50:40,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 02:50:40,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275976502] [2024-11-14 02:50:40,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:50:40,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 02:50:40,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:40,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 02:50:40,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 02:50:40,694 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand has 6 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 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 02:50:44,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:50:46,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:50:48,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:50:50,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:50,074 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2024-11-14 02:50:50,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 02:50:50,075 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-11-14 02:50:50,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:50,076 INFO L225 Difference]: With dead ends: 105 [2024-11-14 02:50:50,076 INFO L226 Difference]: Without dead ends: 105 [2024-11-14 02:50:50,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-14 02:50:50,076 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 68 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:50,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 125 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 290 Invalid, 3 Unknown, 0 Unchecked, 8.8s Time] [2024-11-14 02:50:50,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-14 02:50:50,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-11-14 02:50:50,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 96 states have (on average 1.09375) internal successors, (105), 104 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:50:50,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 105 transitions. [2024-11-14 02:50:50,079 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 105 transitions. Word has length 72 [2024-11-14 02:50:50,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:50,079 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 105 transitions. [2024-11-14 02:50:50,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 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 02:50:50,080 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 105 transitions. [2024-11-14 02:50:50,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 02:50:50,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:50,080 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:50:50,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-14 02:50:50,080 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr94REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:50:50,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:50,081 INFO L85 PathProgramCache]: Analyzing trace with hash -2102986254, now seen corresponding path program 1 times [2024-11-14 02:50:50,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:50,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252156131] [2024-11-14 02:50:50,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:50,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:54,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:54,565 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 02:50:54,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:54,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252156131] [2024-11-14 02:50:54,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252156131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:50:54,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:50:54,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 02:50:54,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050946994] [2024-11-14 02:50:54,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:50:54,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:50:54,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:54,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:50:54,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:50:54,567 INFO L87 Difference]: Start difference. First operand 105 states and 105 transitions. Second operand has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 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 02:50:57,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:50:59,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:51:02,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:51:02,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:51:02,870 INFO L93 Difference]: Finished difference Result 104 states and 104 transitions. [2024-11-14 02:51:02,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:51:02,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-11-14 02:51:02,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:51:02,871 INFO L225 Difference]: With dead ends: 104 [2024-11-14 02:51:02,871 INFO L226 Difference]: Without dead ends: 104 [2024-11-14 02:51:02,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:51:02,871 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 32 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:51:02,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 114 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 235 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2024-11-14 02:51:02,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-14 02:51:02,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-11-14 02:51:02,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 96 states have (on average 1.0833333333333333) internal successors, (104), 103 states have internal predecessors, (104), 0 states have call successors, (0), 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 02:51:02,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 104 transitions. [2024-11-14 02:51:02,874 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 104 transitions. Word has length 77 [2024-11-14 02:51:02,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:51:02,874 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 104 transitions. [2024-11-14 02:51:02,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 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 02:51:02,874 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 104 transitions. [2024-11-14 02:51:02,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 02:51:02,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:51:02,875 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:51:02,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-14 02:51:02,875 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr95REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:51:02,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:51:02,875 INFO L85 PathProgramCache]: Analyzing trace with hash -2102986253, now seen corresponding path program 1 times [2024-11-14 02:51:02,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:51:02,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166073943] [2024-11-14 02:51:02,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:51:02,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:51:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:51:08,965 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 02:51:08,965 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:51:08,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166073943] [2024-11-14 02:51:08,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166073943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:51:08,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:51:08,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 02:51:08,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924544746] [2024-11-14 02:51:08,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:51:08,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 02:51:08,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:51:08,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 02:51:08,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:51:08,966 INFO L87 Difference]: Start difference. First operand 104 states and 104 transitions. Second operand has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 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 02:51:12,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:51:14,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:51:16,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:51:17,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:51:17,839 INFO L93 Difference]: Finished difference Result 103 states and 103 transitions. [2024-11-14 02:51:17,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 02:51:17,839 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-11-14 02:51:17,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:51:17,840 INFO L225 Difference]: With dead ends: 103 [2024-11-14 02:51:17,840 INFO L226 Difference]: Without dead ends: 103 [2024-11-14 02:51:17,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-14 02:51:17,841 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 111 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-11-14 02:51:17,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 121 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 246 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2024-11-14 02:51:17,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-14 02:51:17,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2024-11-14 02:51:17,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 96 states have (on average 1.0729166666666667) internal successors, (103), 102 states have internal predecessors, (103), 0 states have call successors, (0), 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 02:51:17,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 103 transitions. [2024-11-14 02:51:17,846 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 103 transitions. Word has length 77 [2024-11-14 02:51:17,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:51:17,846 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 103 transitions. [2024-11-14 02:51:17,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 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 02:51:17,847 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 103 transitions. [2024-11-14 02:51:17,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-14 02:51:17,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:51:17,848 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:51:17,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-14 02:51:17,848 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr97REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:51:17,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:51:17,848 INFO L85 PathProgramCache]: Analyzing trace with hash -947068329, now seen corresponding path program 1 times [2024-11-14 02:51:17,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:51:17,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804371391] [2024-11-14 02:51:17,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:51:17,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:51:22,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:51:23,956 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 02:51:23,957 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:51:23,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804371391] [2024-11-14 02:51:23,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804371391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:51:23,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:51:23,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 02:51:23,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307080018] [2024-11-14 02:51:23,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:51:23,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 02:51:23,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:51:23,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 02:51:23,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 02:51:23,960 INFO L87 Difference]: Start difference. First operand 103 states and 103 transitions. Second operand has 6 states, 5 states have (on average 16.4) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 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 02:51:27,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:51:29,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:51:31,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:51:32,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:51:32,980 INFO L93 Difference]: Finished difference Result 102 states and 102 transitions. [2024-11-14 02:51:32,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 02:51:32,981 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-14 02:51:32,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:51:32,981 INFO L225 Difference]: With dead ends: 102 [2024-11-14 02:51:32,982 INFO L226 Difference]: Without dead ends: 102 [2024-11-14 02:51:32,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-14 02:51:32,982 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 52 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-11-14 02:51:32,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 118 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 246 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2024-11-14 02:51:32,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-14 02:51:32,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-11-14 02:51:32,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 96 states have (on average 1.0625) internal successors, (102), 101 states have internal predecessors, (102), 0 states have call successors, (0), 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 02:51:32,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 102 transitions. [2024-11-14 02:51:32,985 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 102 transitions. Word has length 82 [2024-11-14 02:51:32,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:51:32,986 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 102 transitions. [2024-11-14 02:51:32,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 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 02:51:32,986 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 102 transitions. [2024-11-14 02:51:32,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-14 02:51:32,987 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:51:32,987 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:51:32,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-14 02:51:32,987 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr96REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:51:32,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:51:32,988 INFO L85 PathProgramCache]: Analyzing trace with hash -947068330, now seen corresponding path program 1 times [2024-11-14 02:51:32,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:51:32,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798940396] [2024-11-14 02:51:32,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:51:32,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:51:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:51:38,010 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 02:51:38,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:51:38,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798940396] [2024-11-14 02:51:38,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798940396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:51:38,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:51:38,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 02:51:38,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71504104] [2024-11-14 02:51:38,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:51:38,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:51:38,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:51:38,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:51:38,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:51:38,012 INFO L87 Difference]: Start difference. First operand 102 states and 102 transitions. Second operand has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 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 02:51:41,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:51:43,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:51:45,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:51:46,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:51:46,427 INFO L93 Difference]: Finished difference Result 101 states and 101 transitions. [2024-11-14 02:51:46,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:51:46,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-14 02:51:46,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:51:46,428 INFO L225 Difference]: With dead ends: 101 [2024-11-14 02:51:46,428 INFO L226 Difference]: Without dead ends: 101 [2024-11-14 02:51:46,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:51:46,429 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 24 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-14 02:51:46,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 111 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 229 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2024-11-14 02:51:46,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-14 02:51:46,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-14 02:51:46,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 96 states have (on average 1.0520833333333333) internal successors, (101), 100 states have internal predecessors, (101), 0 states have call successors, (0), 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 02:51:46,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 101 transitions. [2024-11-14 02:51:46,431 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 101 transitions. Word has length 82 [2024-11-14 02:51:46,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:51:46,431 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 101 transitions. [2024-11-14 02:51:46,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 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 02:51:46,432 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 101 transitions. [2024-11-14 02:51:46,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-14 02:51:46,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:51:46,432 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:51:46,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-14 02:51:46,432 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr98REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:51:46,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:51:46,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1504977987, now seen corresponding path program 1 times [2024-11-14 02:51:46,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:51:46,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143782229] [2024-11-14 02:51:46,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:51:46,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:51:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:51:51,995 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 02:51:51,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:51:51,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143782229] [2024-11-14 02:51:51,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143782229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:51:51,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:51:51,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 02:51:51,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799722596] [2024-11-14 02:51:51,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:51:51,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:51:51,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:51:51,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:51:51,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:51:51,997 INFO L87 Difference]: Start difference. First operand 101 states and 101 transitions. Second operand has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 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 02:51:55,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:51:57,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:51:59,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:52:00,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:52:00,350 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2024-11-14 02:52:00,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:52:00,350 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2024-11-14 02:52:00,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:52:00,351 INFO L225 Difference]: With dead ends: 100 [2024-11-14 02:52:00,351 INFO L226 Difference]: Without dead ends: 100 [2024-11-14 02:52:00,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:52:00,351 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 19 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:52:00,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 105 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 231 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2024-11-14 02:52:00,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-14 02:52:00,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-14 02:52:00,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 96 states have (on average 1.0416666666666667) internal successors, (100), 99 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:52:00,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 100 transitions. [2024-11-14 02:52:00,353 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 100 transitions. Word has length 87 [2024-11-14 02:52:00,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:52:00,354 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 100 transitions. [2024-11-14 02:52:00,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 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 02:52:00,354 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 100 transitions. [2024-11-14 02:52:00,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-14 02:52:00,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:52:00,354 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:52:00,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-14 02:52:00,354 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr99REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:52:00,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:52:00,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1504977988, now seen corresponding path program 1 times [2024-11-14 02:52:00,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:52:00,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998538874] [2024-11-14 02:52:00,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:52:00,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:52:04,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:52:05,864 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 02:52:05,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:52:05,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998538874] [2024-11-14 02:52:05,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998538874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:52:05,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:52:05,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 02:52:05,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363561701] [2024-11-14 02:52:05,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:52:05,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 02:52:05,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:52:05,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 02:52:05,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:52:05,866 INFO L87 Difference]: Start difference. First operand 100 states and 100 transitions. Second operand has 7 states, 6 states have (on average 14.5) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 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 02:52:09,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:52:11,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:52:13,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:52:14,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:52:14,932 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions. [2024-11-14 02:52:14,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 02:52:14,933 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.5) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2024-11-14 02:52:14,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:52:14,934 INFO L225 Difference]: With dead ends: 99 [2024-11-14 02:52:14,934 INFO L226 Difference]: Without dead ends: 99 [2024-11-14 02:52:14,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-14 02:52:14,934 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 75 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2024-11-14 02:52:14,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 113 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 283 Invalid, 3 Unknown, 0 Unchecked, 8.5s Time] [2024-11-14 02:52:14,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-14 02:52:14,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-14 02:52:14,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 96 states have (on average 1.03125) internal successors, (99), 98 states have internal predecessors, (99), 0 states have call successors, (0), 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 02:52:14,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 99 transitions. [2024-11-14 02:52:14,937 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 99 transitions. Word has length 87 [2024-11-14 02:52:14,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:52:14,937 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 99 transitions. [2024-11-14 02:52:14,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.5) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 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 02:52:14,937 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 99 transitions. [2024-11-14 02:52:14,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-14 02:52:14,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:52:14,938 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:52:14,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-14 02:52:14,938 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr102ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:52:14,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:52:14,938 INFO L85 PathProgramCache]: Analyzing trace with hash -2116857161, now seen corresponding path program 1 times [2024-11-14 02:52:14,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:52:14,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400478430] [2024-11-14 02:52:14,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:52:14,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:52:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:52:22,094 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 02:52:22,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:52:22,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400478430] [2024-11-14 02:52:22,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400478430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:52:22,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:52:22,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-14 02:52:22,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065416499] [2024-11-14 02:52:22,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:52:22,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-14 02:52:22,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:52:22,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-14 02:52:22,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-11-14 02:52:22,096 INFO L87 Difference]: Start difference. First operand 99 states and 99 transitions. Second operand has 17 states, 17 states have (on average 5.470588235294118) internal successors, (93), 17 states have internal predecessors, (93), 0 states have call successors, (0), 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 02:52:27,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:52:29,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:52:32,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:52:34,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:52:36,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:52:38,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:52:40,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:52:42,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:52:45,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:52:47,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:52:49,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:52:51,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:52:53,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:52:57,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:52:57,299 INFO L93 Difference]: Finished difference Result 108 states and 108 transitions. [2024-11-14 02:52:57,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 02:52:57,300 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.470588235294118) internal successors, (93), 17 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-11-14 02:52:57,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:52:57,301 INFO L225 Difference]: With dead ends: 108 [2024-11-14 02:52:57,301 INFO L226 Difference]: Without dead ends: 108 [2024-11-14 02:52:57,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2024-11-14 02:52:57,302 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 87 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 6 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.3s IncrementalHoareTripleChecker+Time [2024-11-14 02:52:57,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 321 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 907 Invalid, 13 Unknown, 0 Unchecked, 34.3s Time] [2024-11-14 02:52:57,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-14 02:52:57,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 102. [2024-11-14 02:52:57,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 99 states have (on average 1.0303030303030303) internal successors, (102), 101 states have internal predecessors, (102), 0 states have call successors, (0), 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 02:52:57,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 102 transitions. [2024-11-14 02:52:57,305 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 102 transitions. Word has length 93 [2024-11-14 02:52:57,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:52:57,305 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 102 transitions. [2024-11-14 02:52:57,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.470588235294118) internal successors, (93), 17 states have internal predecessors, (93), 0 states have call successors, (0), 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 02:52:57,305 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 102 transitions. [2024-11-14 02:52:57,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-14 02:52:57,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:52:57,306 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:52:57,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-14 02:52:57,306 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr100REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:52:57,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:52:57,306 INFO L85 PathProgramCache]: Analyzing trace with hash -2116871991, now seen corresponding path program 1 times [2024-11-14 02:52:57,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:52:57,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40725242] [2024-11-14 02:52:57,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:52:57,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:53:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:53:01,810 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 02:53:01,810 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:53:01,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40725242] [2024-11-14 02:53:01,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40725242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:53:01,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:53:01,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 02:53:01,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746252261] [2024-11-14 02:53:01,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:53:01,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:53:01,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:53:01,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:53:01,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:53:01,812 INFO L87 Difference]: Start difference. First operand 102 states and 102 transitions. Second operand has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 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 02:53:05,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:53:07,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:53:09,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:53:10,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:53:10,313 INFO L93 Difference]: Finished difference Result 101 states and 101 transitions. [2024-11-14 02:53:10,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:53:10,314 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-11-14 02:53:10,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:53:10,315 INFO L225 Difference]: With dead ends: 101 [2024-11-14 02:53:10,315 INFO L226 Difference]: Without dead ends: 101 [2024-11-14 02:53:10,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:53:10,315 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 11 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-11-14 02:53:10,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 102 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 228 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2024-11-14 02:53:10,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-14 02:53:10,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-14 02:53:10,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 99 states have (on average 1.02020202020202) internal successors, (101), 100 states have internal predecessors, (101), 0 states have call successors, (0), 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 02:53:10,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 101 transitions. [2024-11-14 02:53:10,318 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 101 transitions. Word has length 93 [2024-11-14 02:53:10,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:53:10,319 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 101 transitions. [2024-11-14 02:53:10,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 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 02:53:10,319 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 101 transitions. [2024-11-14 02:53:10,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-14 02:53:10,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:53:10,320 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:53:10,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-14 02:53:10,320 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr101REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:53:10,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:53:10,320 INFO L85 PathProgramCache]: Analyzing trace with hash -2116871990, now seen corresponding path program 1 times [2024-11-14 02:53:10,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:53:10,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650274888] [2024-11-14 02:53:10,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:53:10,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:53:14,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:53:15,715 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 02:53:15,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:53:15,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650274888] [2024-11-14 02:53:15,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650274888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:53:15,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:53:15,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 02:53:15,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301899181] [2024-11-14 02:53:15,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:53:15,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 02:53:15,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:53:15,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 02:53:15,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 02:53:15,717 INFO L87 Difference]: Start difference. First operand 101 states and 101 transitions. Second operand has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 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 02:53:18,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:53:21,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:53:23,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:53:24,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:53:24,519 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2024-11-14 02:53:24,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 02:53:24,520 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-11-14 02:53:24,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:53:24,521 INFO L225 Difference]: With dead ends: 100 [2024-11-14 02:53:24,521 INFO L226 Difference]: Without dead ends: 100 [2024-11-14 02:53:24,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-14 02:53:24,521 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 32 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:53:24,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 109 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 239 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2024-11-14 02:53:24,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-14 02:53:24,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-14 02:53:24,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.0101010101010102) internal successors, (100), 99 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:53:24,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 100 transitions. [2024-11-14 02:53:24,525 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 100 transitions. Word has length 93 [2024-11-14 02:53:24,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:53:24,525 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 100 transitions. [2024-11-14 02:53:24,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 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 02:53:24,525 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 100 transitions. [2024-11-14 02:53:24,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-14 02:53:24,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:53:24,526 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:53:24,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-14 02:53:24,527 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr102ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-14 02:53:24,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:53:24,527 INFO L85 PathProgramCache]: Analyzing trace with hash -589668726, now seen corresponding path program 1 times [2024-11-14 02:53:24,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:53:24,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833286807] [2024-11-14 02:53:24,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:53:24,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:53:28,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:53:31,954 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:53:31,954 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:53:31,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833286807] [2024-11-14 02:53:31,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833286807] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:53:31,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83565450] [2024-11-14 02:53:31,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:53:31,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:53:31,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d635825-2705-455d-b957-37b27bf0d766/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:53:31,957 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d635825-2705-455d-b957-37b27bf0d766/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:53:31,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d635825-2705-455d-b957-37b27bf0d766/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process