./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.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_2ba92d7e-ef17-4771-8873-14a2d532f2c3/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba92d7e-ef17-4771-8873-14a2d532f2c3/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_2ba92d7e-ef17-4771-8873-14a2d532f2c3/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba92d7e-ef17-4771-8873-14a2d532f2c3/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba92d7e-ef17-4771-8873-14a2d532f2c3/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_2ba92d7e-ef17-4771-8873-14a2d532f2c3/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 b78dfc9c2705d92d2bcea2c224e1a0e17a9d3d516f404185e5eda6bc0d05a15c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:44:44,227 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:44:44,327 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba92d7e-ef17-4771-8873-14a2d532f2c3/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-13 23:44:44,334 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:44:44,334 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:44:44,376 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:44:44,376 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:44:44,377 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:44:44,377 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:44:44,377 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:44:44,377 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:44:44,377 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:44:44,379 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:44:44,379 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:44:44,380 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:44:44,380 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:44:44,380 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:44:44,381 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:44:44,381 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:44:44,381 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:44:44,381 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:44:44,382 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:44:44,382 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 23:44:44,383 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 23:44:44,383 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:44:44,383 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:44:44,383 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:44:44,383 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:44:44,383 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:44:44,384 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 23:44:44,384 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 23:44:44,384 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 23:44:44,384 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:44:44,384 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 23:44:44,385 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:44:44,385 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 23:44:44,385 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:44:44,386 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:44:44,386 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:44:44,386 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:44:44,386 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:44:44,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:44:44,386 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:44:44,386 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:44:44,387 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:44:44,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:44:44,387 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:44:44,387 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:44:44,387 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:44:44,387 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_2ba92d7e-ef17-4771-8873-14a2d532f2c3/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 -> b78dfc9c2705d92d2bcea2c224e1a0e17a9d3d516f404185e5eda6bc0d05a15c [2024-11-13 23:44:44,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:44:44,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:44:44,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:44:44,715 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:44:44,716 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:44:44,717 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba92d7e-ef17-4771-8873-14a2d532f2c3/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c Unable to find full path for "g++" [2024-11-13 23:44:46,597 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:44:46,891 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:44:46,893 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba92d7e-ef17-4771-8873-14a2d532f2c3/sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2024-11-13 23:44:46,917 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba92d7e-ef17-4771-8873-14a2d532f2c3/bin/utaipan-verify-sOmjnqqW8E/data/6f2ea3a10/9ee0d2f00bee4b8b838d6247c0470807/FLAG07409bd1d [2024-11-13 23:44:46,942 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba92d7e-ef17-4771-8873-14a2d532f2c3/bin/utaipan-verify-sOmjnqqW8E/data/6f2ea3a10/9ee0d2f00bee4b8b838d6247c0470807 [2024-11-13 23:44:46,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:44:46,945 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:44:46,946 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:44:46,947 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:44:46,951 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:44:46,952 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:44:46" (1/1) ... [2024-11-13 23:44:46,953 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@112cba85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:46, skipping insertion in model container [2024-11-13 23:44:46,954 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:44:46" (1/1) ... [2024-11-13 23:44:46,976 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:44:47,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:44:47,209 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:44:47,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:44:47,260 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:44:47,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:47 WrapperNode [2024-11-13 23:44:47,261 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:44:47,262 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:44:47,262 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:44:47,262 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:44:47,269 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:47" (1/1) ... [2024-11-13 23:44:47,277 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:47" (1/1) ... [2024-11-13 23:44:47,303 INFO L138 Inliner]: procedures = 22, calls = 21, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 212 [2024-11-13 23:44:47,303 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:44:47,304 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:44:47,304 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:44:47,304 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:44:47,315 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:47" (1/1) ... [2024-11-13 23:44:47,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:47" (1/1) ... [2024-11-13 23:44:47,318 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:47" (1/1) ... [2024-11-13 23:44:47,320 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:47" (1/1) ... [2024-11-13 23:44:47,327 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:47" (1/1) ... [2024-11-13 23:44:47,334 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:47" (1/1) ... [2024-11-13 23:44:47,335 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:47" (1/1) ... [2024-11-13 23:44:47,338 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:47" (1/1) ... [2024-11-13 23:44:47,341 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:44:47,342 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:44:47,342 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:44:47,342 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:44:47,343 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:47" (1/1) ... [2024-11-13 23:44:47,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:44:47,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba92d7e-ef17-4771-8873-14a2d532f2c3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:44:47,376 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba92d7e-ef17-4771-8873-14a2d532f2c3/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:44:47,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba92d7e-ef17-4771-8873-14a2d532f2c3/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:44:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:44:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-13 23:44:47,401 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-13 23:44:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-13 23:44:47,401 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-13 23:44:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-13 23:44:47,402 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-13 23:44:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-13 23:44:47,402 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-13 23:44:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:44:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-11-13 23:44:47,402 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-11-13 23:44:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-11-13 23:44:47,402 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-11-13 23:44:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:44:47,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:44:47,404 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 23:44:47,540 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:44:47,542 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:44:48,040 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 23:44:48,040 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:44:48,257 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:44:48,258 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 23:44:48,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:44:48 BoogieIcfgContainer [2024-11-13 23:44:48,258 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:44:48,261 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:44:48,261 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:44:48,270 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:44:48,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:44:46" (1/3) ... [2024-11-13 23:44:48,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b828cf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:44:48, skipping insertion in model container [2024-11-13 23:44:48,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:47" (2/3) ... [2024-11-13 23:44:48,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b828cf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:44:48, skipping insertion in model container [2024-11-13 23:44:48,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:44:48" (3/3) ... [2024-11-13 23:44:48,273 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2024-11-13 23:44:48,290 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:44:48,291 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-barrier.wvr.c that has 7 procedures, 75 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-13 23:44:48,292 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 23:44:48,427 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-11-13 23:44:48,466 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 84 transitions, 234 flow [2024-11-13 23:44:50,776 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 30650 states, 30648 states have (on average 4.834932132602454) internal successors, (148181), 30649 states have internal predecessors, (148181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:50,926 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:44:50,940 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;@7a320214, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:44:50,940 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-13 23:44:51,023 INFO L276 IsEmpty]: Start isEmpty. Operand has 30650 states, 30648 states have (on average 4.834932132602454) internal successors, (148181), 30649 states have internal predecessors, (148181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:51,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 23:44:51,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:51,385 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] [2024-11-13 23:44:51,387 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2024-11-13 23:44:51,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:51,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1473750465, now seen corresponding path program 1 times [2024-11-13 23:44:51,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:51,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572925602] [2024-11-13 23:44:51,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:51,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:51,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:52,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:44:52,151 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:52,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572925602] [2024-11-13 23:44:52,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572925602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:52,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:44:52,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:44:52,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309434975] [2024-11-13 23:44:52,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:52,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:44:52,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:52,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:44:52,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:44:52,247 INFO L87 Difference]: Start difference. First operand has 30650 states, 30648 states have (on average 4.834932132602454) internal successors, (148181), 30649 states have internal predecessors, (148181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:53,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:53,468 INFO L93 Difference]: Finished difference Result 37968 states and 181881 transitions. [2024-11-13 23:44:53,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:44:53,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-13 23:44:53,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:53,900 INFO L225 Difference]: With dead ends: 37968 [2024-11-13 23:44:53,900 INFO L226 Difference]: Without dead ends: 26184 [2024-11-13 23:44:54,041 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 [2024-11-13 23:44:54,045 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 32 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:54,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 43 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:44:54,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26184 states. [2024-11-13 23:44:55,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26184 to 26184. [2024-11-13 23:44:55,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26184 states, 26183 states have (on average 4.778711377611427) internal successors, (125121), 26183 states have internal predecessors, (125121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:56,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26184 states to 26184 states and 125121 transitions. [2024-11-13 23:44:56,093 INFO L78 Accepts]: Start accepts. Automaton has 26184 states and 125121 transitions. Word has length 65 [2024-11-13 23:44:56,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:56,096 INFO L471 AbstractCegarLoop]: Abstraction has 26184 states and 125121 transitions. [2024-11-13 23:44:56,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:56,096 INFO L276 IsEmpty]: Start isEmpty. Operand 26184 states and 125121 transitions. [2024-11-13 23:44:56,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 23:44:56,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:56,257 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] [2024-11-13 23:44:56,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 23:44:56,259 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2024-11-13 23:44:56,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:56,263 INFO L85 PathProgramCache]: Analyzing trace with hash -887030827, now seen corresponding path program 2 times [2024-11-13 23:44:56,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:56,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007650306] [2024-11-13 23:44:56,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:56,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:56,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:56,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:44:56,503 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:56,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007650306] [2024-11-13 23:44:56,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007650306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:56,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:44:56,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:44:56,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544093564] [2024-11-13 23:44:56,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:56,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:44:56,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:56,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:44:56,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:44:56,507 INFO L87 Difference]: Start difference. First operand 26184 states and 125121 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:57,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:57,296 INFO L93 Difference]: Finished difference Result 32306 states and 153159 transitions. [2024-11-13 23:44:57,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:44:57,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-13 23:44:57,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:57,762 INFO L225 Difference]: With dead ends: 32306 [2024-11-13 23:44:57,762 INFO L226 Difference]: Without dead ends: 22386 [2024-11-13 23:44:57,778 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 [2024-11-13 23:44:57,779 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 39 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:57,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 39 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:44:57,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22386 states. [2024-11-13 23:44:58,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22386 to 22386. [2024-11-13 23:44:58,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22386 states, 22385 states have (on average 4.721465266919813) internal successors, (105690), 22385 states have internal predecessors, (105690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:59,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22386 states to 22386 states and 105690 transitions. [2024-11-13 23:44:59,040 INFO L78 Accepts]: Start accepts. Automaton has 22386 states and 105690 transitions. Word has length 65 [2024-11-13 23:44:59,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:59,041 INFO L471 AbstractCegarLoop]: Abstraction has 22386 states and 105690 transitions. [2024-11-13 23:44:59,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:59,042 INFO L276 IsEmpty]: Start isEmpty. Operand 22386 states and 105690 transitions. [2024-11-13 23:44:59,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 23:44:59,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:59,424 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] [2024-11-13 23:44:59,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 23:44:59,425 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2024-11-13 23:44:59,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:59,426 INFO L85 PathProgramCache]: Analyzing trace with hash -141581911, now seen corresponding path program 3 times [2024-11-13 23:44:59,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:59,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217928985] [2024-11-13 23:44:59,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:59,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:01,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:45:01,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:45:01,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217928985] [2024-11-13 23:45:01,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217928985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:01,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:01,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-13 23:45:01,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454785213] [2024-11-13 23:45:01,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:01,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 23:45:01,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:45:01,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 23:45:01,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2024-11-13 23:45:01,024 INFO L87 Difference]: Start difference. First operand 22386 states and 105690 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:05,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:05,836 INFO L93 Difference]: Finished difference Result 28200 states and 132346 transitions. [2024-11-13 23:45:05,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-13 23:45:05,837 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-13 23:45:05,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:06,066 INFO L225 Difference]: With dead ends: 28200 [2024-11-13 23:45:06,066 INFO L226 Difference]: Without dead ends: 27801 [2024-11-13 23:45:06,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 717 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=314, Invalid=2656, Unknown=0, NotChecked=0, Total=2970 [2024-11-13 23:45:06,077 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 760 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 5319 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 5333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 5319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:06,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 643 Invalid, 5333 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 5319 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-13 23:45:06,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27801 states. [2024-11-13 23:45:06,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27801 to 22926. [2024-11-13 23:45:07,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22926 states, 22925 states have (on average 4.715201744820066) internal successors, (108096), 22925 states have internal predecessors, (108096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:07,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22926 states to 22926 states and 108096 transitions. [2024-11-13 23:45:07,181 INFO L78 Accepts]: Start accepts. Automaton has 22926 states and 108096 transitions. Word has length 65 [2024-11-13 23:45:07,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:07,182 INFO L471 AbstractCegarLoop]: Abstraction has 22926 states and 108096 transitions. [2024-11-13 23:45:07,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:07,183 INFO L276 IsEmpty]: Start isEmpty. Operand 22926 states and 108096 transitions. [2024-11-13 23:45:07,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 23:45:07,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:07,267 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] [2024-11-13 23:45:07,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 23:45:07,267 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2024-11-13 23:45:07,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:07,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1007179055, now seen corresponding path program 4 times [2024-11-13 23:45:07,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:45:07,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986446878] [2024-11-13 23:45:07,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:07,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:45:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:08,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:45:08,596 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:45:08,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986446878] [2024-11-13 23:45:08,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986446878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:08,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:08,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-13 23:45:08,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732848808] [2024-11-13 23:45:08,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:08,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 23:45:08,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:45:08,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 23:45:08,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2024-11-13 23:45:08,599 INFO L87 Difference]: Start difference. First operand 22926 states and 108096 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:13,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:13,335 INFO L93 Difference]: Finished difference Result 28229 states and 132446 transitions. [2024-11-13 23:45:13,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-13 23:45:13,336 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-13 23:45:13,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:13,588 INFO L225 Difference]: With dead ends: 28229 [2024-11-13 23:45:13,589 INFO L226 Difference]: Without dead ends: 27761 [2024-11-13 23:45:13,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=317, Invalid=2653, Unknown=0, NotChecked=0, Total=2970 [2024-11-13 23:45:13,608 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 785 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 5587 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 5602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 5587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:13,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 667 Invalid, 5602 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 5587 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-13 23:45:13,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27761 states. [2024-11-13 23:45:14,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27761 to 22886. [2024-11-13 23:45:14,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22886 states, 22885 states have (on average 4.715228315490496) internal successors, (107908), 22885 states have internal predecessors, (107908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:14,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22886 states to 22886 states and 107908 transitions. [2024-11-13 23:45:14,802 INFO L78 Accepts]: Start accepts. Automaton has 22886 states and 107908 transitions. Word has length 65 [2024-11-13 23:45:14,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:14,802 INFO L471 AbstractCegarLoop]: Abstraction has 22886 states and 107908 transitions. [2024-11-13 23:45:14,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:14,802 INFO L276 IsEmpty]: Start isEmpty. Operand 22886 states and 107908 transitions. [2024-11-13 23:45:14,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 23:45:14,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:14,873 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] [2024-11-13 23:45:14,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 23:45:14,874 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2024-11-13 23:45:14,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:14,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1272858339, now seen corresponding path program 5 times [2024-11-13 23:45:14,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:45:14,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848671378] [2024-11-13 23:45:14,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:14,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:45:14,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:16,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:45:16,104 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:45:16,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848671378] [2024-11-13 23:45:16,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848671378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:16,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:16,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-13 23:45:16,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682266392] [2024-11-13 23:45:16,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:16,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 23:45:16,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:45:16,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 23:45:16,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2024-11-13 23:45:16,106 INFO L87 Difference]: Start difference. First operand 22886 states and 107908 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:19,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:19,937 INFO L93 Difference]: Finished difference Result 28494 states and 133701 transitions. [2024-11-13 23:45:19,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-13 23:45:19,938 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-13 23:45:19,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:20,119 INFO L225 Difference]: With dead ends: 28494 [2024-11-13 23:45:20,120 INFO L226 Difference]: Without dead ends: 27736 [2024-11-13 23:45:20,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 979 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=358, Invalid=3302, Unknown=0, NotChecked=0, Total=3660 [2024-11-13 23:45:20,133 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 848 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 5839 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 5857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 5839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:20,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 671 Invalid, 5857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 5839 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-13 23:45:20,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27736 states. [2024-11-13 23:45:20,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27736 to 22806. [2024-11-13 23:45:21,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22806 states, 22805 states have (on average 4.715632536724403) internal successors, (107540), 22805 states have internal predecessors, (107540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:21,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22806 states to 22806 states and 107540 transitions. [2024-11-13 23:45:21,103 INFO L78 Accepts]: Start accepts. Automaton has 22806 states and 107540 transitions. Word has length 65 [2024-11-13 23:45:21,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:21,103 INFO L471 AbstractCegarLoop]: Abstraction has 22806 states and 107540 transitions. [2024-11-13 23:45:21,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:21,103 INFO L276 IsEmpty]: Start isEmpty. Operand 22806 states and 107540 transitions. [2024-11-13 23:45:21,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 23:45:21,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:21,171 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] [2024-11-13 23:45:21,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 23:45:21,171 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2024-11-13 23:45:21,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:21,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1105293515, now seen corresponding path program 6 times [2024-11-13 23:45:21,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:45:21,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116038166] [2024-11-13 23:45:21,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:21,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:45:21,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:22,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:45:22,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:45:22,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116038166] [2024-11-13 23:45:22,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116038166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:22,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:22,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-13 23:45:22,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126143035] [2024-11-13 23:45:22,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:22,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 23:45:22,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:45:22,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 23:45:22,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2024-11-13 23:45:22,083 INFO L87 Difference]: Start difference. First operand 22806 states and 107540 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:25,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:25,830 INFO L93 Difference]: Finished difference Result 30373 states and 142095 transitions. [2024-11-13 23:45:25,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-13 23:45:25,831 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-13 23:45:25,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:26,229 INFO L225 Difference]: With dead ends: 30373 [2024-11-13 23:45:26,229 INFO L226 Difference]: Without dead ends: 29974 [2024-11-13 23:45:26,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 943 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=385, Invalid=3275, Unknown=0, NotChecked=0, Total=3660 [2024-11-13 23:45:26,238 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 864 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 5766 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 5786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 5766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:26,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [864 Valid, 742 Invalid, 5786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 5766 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-13 23:45:26,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29974 states. [2024-11-13 23:45:26,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29974 to 22862. [2024-11-13 23:45:26,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22862 states, 22861 states have (on average 4.714054503302568) internal successors, (107768), 22861 states have internal predecessors, (107768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:26,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22862 states to 22862 states and 107768 transitions. [2024-11-13 23:45:26,939 INFO L78 Accepts]: Start accepts. Automaton has 22862 states and 107768 transitions. Word has length 65 [2024-11-13 23:45:26,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:26,940 INFO L471 AbstractCegarLoop]: Abstraction has 22862 states and 107768 transitions. [2024-11-13 23:45:26,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:26,940 INFO L276 IsEmpty]: Start isEmpty. Operand 22862 states and 107768 transitions. [2024-11-13 23:45:27,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 23:45:27,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:27,284 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] [2024-11-13 23:45:27,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 23:45:27,285 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2024-11-13 23:45:27,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:27,285 INFO L85 PathProgramCache]: Analyzing trace with hash 239696371, now seen corresponding path program 7 times [2024-11-13 23:45:27,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:45:27,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74844328] [2024-11-13 23:45:27,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:27,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:45:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:28,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:45:28,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:45:28,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74844328] [2024-11-13 23:45:28,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74844328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:28,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:28,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-13 23:45:28,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012248631] [2024-11-13 23:45:28,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:28,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 23:45:28,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:45:28,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 23:45:28,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2024-11-13 23:45:28,281 INFO L87 Difference]: Start difference. First operand 22862 states and 107768 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:32,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:32,158 INFO L93 Difference]: Finished difference Result 30798 states and 144303 transitions. [2024-11-13 23:45:32,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-11-13 23:45:32,158 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-13 23:45:32,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:32,290 INFO L225 Difference]: With dead ends: 30798 [2024-11-13 23:45:32,290 INFO L226 Difference]: Without dead ends: 30330 [2024-11-13 23:45:32,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1091 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=406, Invalid=3626, Unknown=0, NotChecked=0, Total=4032 [2024-11-13 23:45:32,301 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 927 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 5643 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 5668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 5643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:32,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 768 Invalid, 5668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 5643 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-13 23:45:32,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30330 states. [2024-11-13 23:45:33,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30330 to 22822. [2024-11-13 23:45:33,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22822 states, 22821 states have (on average 4.7151308005784145) internal successors, (107604), 22821 states have internal predecessors, (107604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:33,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22822 states to 22822 states and 107604 transitions. [2024-11-13 23:45:33,238 INFO L78 Accepts]: Start accepts. Automaton has 22822 states and 107604 transitions. Word has length 65 [2024-11-13 23:45:33,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:33,238 INFO L471 AbstractCegarLoop]: Abstraction has 22822 states and 107604 transitions. [2024-11-13 23:45:33,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:33,239 INFO L276 IsEmpty]: Start isEmpty. Operand 22822 states and 107604 transitions. [2024-11-13 23:45:33,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 23:45:33,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:33,290 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] [2024-11-13 23:45:33,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 23:45:33,290 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2024-11-13 23:45:33,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:33,291 INFO L85 PathProgramCache]: Analyzing trace with hash -937670231, now seen corresponding path program 8 times [2024-11-13 23:45:33,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:45:33,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482677854] [2024-11-13 23:45:33,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:33,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:45:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:34,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:45:34,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:45:34,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482677854] [2024-11-13 23:45:34,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482677854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:34,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:34,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-13 23:45:34,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653575992] [2024-11-13 23:45:34,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:34,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 23:45:34,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:45:34,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 23:45:34,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2024-11-13 23:45:34,066 INFO L87 Difference]: Start difference. First operand 22822 states and 107604 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:38,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:38,215 INFO L93 Difference]: Finished difference Result 32121 states and 151664 transitions. [2024-11-13 23:45:38,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-13 23:45:38,215 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-13 23:45:38,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:38,578 INFO L225 Difference]: With dead ends: 32121 [2024-11-13 23:45:38,578 INFO L226 Difference]: Without dead ends: 31722 [2024-11-13 23:45:38,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1164 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=431, Invalid=3859, Unknown=0, NotChecked=0, Total=4290 [2024-11-13 23:45:38,584 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 879 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 6907 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 6937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 6907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:38,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [879 Valid, 974 Invalid, 6937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 6907 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-13 23:45:38,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31722 states. [2024-11-13 23:45:39,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31722 to 22854. [2024-11-13 23:45:39,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22854 states, 22853 states have (on average 4.713429309062268) internal successors, (107716), 22853 states have internal predecessors, (107716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:39,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22854 states to 22854 states and 107716 transitions. [2024-11-13 23:45:39,223 INFO L78 Accepts]: Start accepts. Automaton has 22854 states and 107716 transitions. Word has length 65 [2024-11-13 23:45:39,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:39,223 INFO L471 AbstractCegarLoop]: Abstraction has 22854 states and 107716 transitions. [2024-11-13 23:45:39,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:39,223 INFO L276 IsEmpty]: Start isEmpty. Operand 22854 states and 107716 transitions. [2024-11-13 23:45:39,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 23:45:39,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:39,271 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] [2024-11-13 23:45:39,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 23:45:39,271 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2024-11-13 23:45:39,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:39,271 INFO L85 PathProgramCache]: Analyzing trace with hash -988871677, now seen corresponding path program 9 times [2024-11-13 23:45:39,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:45:39,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978215208] [2024-11-13 23:45:39,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:39,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:45:39,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:40,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:45:40,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:45:40,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978215208] [2024-11-13 23:45:40,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978215208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:40,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:40,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-13 23:45:40,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319013949] [2024-11-13 23:45:40,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:40,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 23:45:40,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:45:40,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 23:45:40,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2024-11-13 23:45:40,273 INFO L87 Difference]: Start difference. First operand 22854 states and 107716 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:44,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:44,376 INFO L93 Difference]: Finished difference Result 32286 states and 153121 transitions. [2024-11-13 23:45:44,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-11-13 23:45:44,377 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-13 23:45:44,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:44,538 INFO L225 Difference]: With dead ends: 32286 [2024-11-13 23:45:44,538 INFO L226 Difference]: Without dead ends: 31851 [2024-11-13 23:45:44,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1258 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=460, Invalid=4096, Unknown=0, NotChecked=0, Total=4556 [2024-11-13 23:45:44,549 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 947 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 6348 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 6377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 6348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:44,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [947 Valid, 919 Invalid, 6377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 6348 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-13 23:45:44,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31851 states. [2024-11-13 23:45:45,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31851 to 22822. [2024-11-13 23:45:45,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22822 states, 22821 states have (on average 4.7144296919503965) internal successors, (107588), 22821 states have internal predecessors, (107588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:45,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22822 states to 22822 states and 107588 transitions. [2024-11-13 23:45:45,659 INFO L78 Accepts]: Start accepts. Automaton has 22822 states and 107588 transitions. Word has length 65 [2024-11-13 23:45:45,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:45,659 INFO L471 AbstractCegarLoop]: Abstraction has 22822 states and 107588 transitions. [2024-11-13 23:45:45,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:45,659 INFO L276 IsEmpty]: Start isEmpty. Operand 22822 states and 107588 transitions. [2024-11-13 23:45:45,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 23:45:45,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:45,706 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] [2024-11-13 23:45:45,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 23:45:45,706 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2024-11-13 23:45:45,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:45,706 INFO L85 PathProgramCache]: Analyzing trace with hash 2071415393, now seen corresponding path program 10 times [2024-11-13 23:45:45,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:45:45,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796784519] [2024-11-13 23:45:45,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:45,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:45:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:46,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:45:46,354 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:45:46,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796784519] [2024-11-13 23:45:46,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796784519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:46,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:46,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-13 23:45:46,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328733378] [2024-11-13 23:45:46,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:46,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 23:45:46,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:45:46,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 23:45:46,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2024-11-13 23:45:46,356 INFO L87 Difference]: Start difference. First operand 22822 states and 107588 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:50,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:50,175 INFO L93 Difference]: Finished difference Result 30528 states and 143611 transitions. [2024-11-13 23:45:50,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-13 23:45:50,176 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-13 23:45:50,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:50,306 INFO L225 Difference]: With dead ends: 30528 [2024-11-13 23:45:50,306 INFO L226 Difference]: Without dead ends: 30100 [2024-11-13 23:45:50,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1178 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=439, Invalid=3851, Unknown=0, NotChecked=0, Total=4290 [2024-11-13 23:45:50,317 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 972 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 6119 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 6145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 6119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:50,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 810 Invalid, 6145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 6119 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-13 23:45:50,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30100 states. [2024-11-13 23:45:51,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30100 to 22872. [2024-11-13 23:45:51,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22872 states, 22871 states have (on average 4.712037077521752) internal successors, (107769), 22871 states have internal predecessors, (107769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:51,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22872 states to 22872 states and 107769 transitions. [2024-11-13 23:45:51,228 INFO L78 Accepts]: Start accepts. Automaton has 22872 states and 107769 transitions. Word has length 65 [2024-11-13 23:45:51,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:51,228 INFO L471 AbstractCegarLoop]: Abstraction has 22872 states and 107769 transitions. [2024-11-13 23:45:51,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:51,228 INFO L276 IsEmpty]: Start isEmpty. Operand 22872 states and 107769 transitions. [2024-11-13 23:45:51,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 23:45:51,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:51,276 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] [2024-11-13 23:45:51,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 23:45:51,277 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2024-11-13 23:45:51,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:51,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1642312031, now seen corresponding path program 11 times [2024-11-13 23:45:51,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:45:51,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350365575] [2024-11-13 23:45:51,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:51,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:45:51,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:51,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:45:51,905 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:45:51,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350365575] [2024-11-13 23:45:51,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350365575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:51,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:51,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-13 23:45:51,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505506958] [2024-11-13 23:45:51,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:51,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 23:45:51,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:45:51,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 23:45:51,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2024-11-13 23:45:51,908 INFO L87 Difference]: Start difference. First operand 22872 states and 107769 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:56,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:56,241 INFO L93 Difference]: Finished difference Result 32844 states and 156006 transitions. [2024-11-13 23:45:56,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2024-11-13 23:45:56,241 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-13 23:45:56,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:56,377 INFO L225 Difference]: With dead ends: 32844 [2024-11-13 23:45:56,377 INFO L226 Difference]: Without dead ends: 32375 [2024-11-13 23:45:56,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1511 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=515, Invalid=4741, Unknown=0, NotChecked=0, Total=5256 [2024-11-13 23:45:56,390 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 948 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 6612 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 6645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 6612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:56,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [948 Valid, 951 Invalid, 6645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 6612 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-13 23:45:56,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32375 states. [2024-11-13 23:45:57,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32375 to 22806. [2024-11-13 23:45:57,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22806 states, 22805 states have (on average 4.714930936198202) internal successors, (107524), 22805 states have internal predecessors, (107524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:57,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22806 states to 22806 states and 107524 transitions. [2024-11-13 23:45:57,398 INFO L78 Accepts]: Start accepts. Automaton has 22806 states and 107524 transitions. Word has length 65 [2024-11-13 23:45:57,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:57,398 INFO L471 AbstractCegarLoop]: Abstraction has 22806 states and 107524 transitions. [2024-11-13 23:45:57,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:57,398 INFO L276 IsEmpty]: Start isEmpty. Operand 22806 states and 107524 transitions. [2024-11-13 23:45:57,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 23:45:57,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:57,466 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] [2024-11-13 23:45:57,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 23:45:57,466 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2024-11-13 23:45:57,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:57,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1012580195, now seen corresponding path program 12 times [2024-11-13 23:45:57,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:45:57,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924439417] [2024-11-13 23:45:57,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:57,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:45:57,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:58,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:45:58,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:45:58,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924439417] [2024-11-13 23:45:58,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924439417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:58,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:58,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-13 23:45:58,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320658809] [2024-11-13 23:45:58,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:58,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 23:45:58,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:45:58,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 23:45:58,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2024-11-13 23:45:58,175 INFO L87 Difference]: Start difference. First operand 22806 states and 107524 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:46:01,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:01,873 INFO L93 Difference]: Finished difference Result 30240 states and 141674 transitions. [2024-11-13 23:46:01,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-13 23:46:01,874 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-13 23:46:01,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:02,028 INFO L225 Difference]: With dead ends: 30240 [2024-11-13 23:46:02,029 INFO L226 Difference]: Without dead ends: 29562 [2024-11-13 23:46:02,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1309 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=426, Invalid=4130, Unknown=0, NotChecked=0, Total=4556 [2024-11-13 23:46:02,046 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 943 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 5953 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 943 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 5976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 5953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:02,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [943 Valid, 690 Invalid, 5976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 5953 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 23:46:02,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29562 states. [2024-11-13 23:46:02,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29562 to 22906. [2024-11-13 23:46:02,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22906 states, 22905 states have (on average 4.710150622134905) internal successors, (107886), 22905 states have internal predecessors, (107886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:46:02,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22906 states to 22906 states and 107886 transitions. [2024-11-13 23:46:02,916 INFO L78 Accepts]: Start accepts. Automaton has 22906 states and 107886 transitions. Word has length 65 [2024-11-13 23:46:02,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:02,916 INFO L471 AbstractCegarLoop]: Abstraction has 22906 states and 107886 transitions. [2024-11-13 23:46:02,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:46:02,917 INFO L276 IsEmpty]: Start isEmpty. Operand 22906 states and 107886 transitions. [2024-11-13 23:46:02,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 23:46:02,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:02,964 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] [2024-11-13 23:46:02,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 23:46:02,964 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2024-11-13 23:46:02,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:02,964 INFO L85 PathProgramCache]: Analyzing trace with hash -385585089, now seen corresponding path program 13 times [2024-11-13 23:46:02,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:02,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931439574] [2024-11-13 23:46:02,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:02,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:02,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:03,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:03,573 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:03,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931439574] [2024-11-13 23:46:03,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931439574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:46:03,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:46:03,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-13 23:46:03,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996654036] [2024-11-13 23:46:03,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:46:03,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 23:46:03,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:03,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 23:46:03,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2024-11-13 23:46:03,575 INFO L87 Difference]: Start difference. First operand 22906 states and 107886 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:46:07,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:07,548 INFO L93 Difference]: Finished difference Result 31622 states and 148762 transitions. [2024-11-13 23:46:07,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-11-13 23:46:07,549 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-13 23:46:07,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:07,679 INFO L225 Difference]: With dead ends: 31622 [2024-11-13 23:46:07,679 INFO L226 Difference]: Without dead ends: 31194 [2024-11-13 23:46:07,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1646 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=529, Invalid=5021, Unknown=0, NotChecked=0, Total=5550 [2024-11-13 23:46:07,693 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 989 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 5719 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 5752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 5719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:07,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 768 Invalid, 5752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 5719 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-13 23:46:07,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31194 states. [2024-11-13 23:46:08,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31194 to 22956. [2024-11-13 23:46:08,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22956 states, 22955 states have (on average 4.7077760836419085) internal successors, (108067), 22955 states have internal predecessors, (108067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:46:08,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22956 states to 22956 states and 108067 transitions. [2024-11-13 23:46:08,755 INFO L78 Accepts]: Start accepts. Automaton has 22956 states and 108067 transitions. Word has length 65 [2024-11-13 23:46:08,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:08,756 INFO L471 AbstractCegarLoop]: Abstraction has 22956 states and 108067 transitions. [2024-11-13 23:46:08,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:46:08,756 INFO L276 IsEmpty]: Start isEmpty. Operand 22956 states and 108067 transitions. [2024-11-13 23:46:08,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 23:46:08,818 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:08,818 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] [2024-11-13 23:46:08,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 23:46:08,818 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2024-11-13 23:46:08,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:08,819 INFO L85 PathProgramCache]: Analyzing trace with hash 195654783, now seen corresponding path program 14 times [2024-11-13 23:46:08,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:08,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577180838] [2024-11-13 23:46:08,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:08,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:08,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:09,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:09,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:09,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577180838] [2024-11-13 23:46:09,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577180838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:46:09,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:46:09,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-13 23:46:09,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708547833] [2024-11-13 23:46:09,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:46:09,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 23:46:09,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:09,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 23:46:09,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2024-11-13 23:46:09,431 INFO L87 Difference]: Start difference. First operand 22956 states and 108067 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:46:13,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:13,698 INFO L93 Difference]: Finished difference Result 33501 states and 159253 transitions. [2024-11-13 23:46:13,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-11-13 23:46:13,698 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-13 23:46:13,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:14,123 INFO L225 Difference]: With dead ends: 33501 [2024-11-13 23:46:14,123 INFO L226 Difference]: Without dead ends: 32916 [2024-11-13 23:46:14,129 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1731 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=550, Invalid=5302, Unknown=0, NotChecked=0, Total=5852 [2024-11-13 23:46:14,130 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 967 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 6690 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 967 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 6730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 6690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:14,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [967 Valid, 961 Invalid, 6730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 6690 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-13 23:46:14,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32916 states. [2024-11-13 23:46:14,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32916 to 22774. [2024-11-13 23:46:14,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22774 states, 22773 states have (on average 4.715232951301981) internal successors, (107380), 22773 states have internal predecessors, (107380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:46:14,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22774 states to 22774 states and 107380 transitions. [2024-11-13 23:46:14,737 INFO L78 Accepts]: Start accepts. Automaton has 22774 states and 107380 transitions. Word has length 65 [2024-11-13 23:46:14,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:14,737 INFO L471 AbstractCegarLoop]: Abstraction has 22774 states and 107380 transitions. [2024-11-13 23:46:14,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:46:14,737 INFO L276 IsEmpty]: Start isEmpty. Operand 22774 states and 107380 transitions. [2024-11-13 23:46:14,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 23:46:14,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:14,787 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] [2024-11-13 23:46:14,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 23:46:14,787 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2024-11-13 23:46:14,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:14,788 INFO L85 PathProgramCache]: Analyzing trace with hash -112096897, now seen corresponding path program 15 times [2024-11-13 23:46:14,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:14,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688791623] [2024-11-13 23:46:14,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:14,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:15,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:15,688 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:15,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688791623] [2024-11-13 23:46:15,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688791623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:46:15,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:46:15,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-13 23:46:15,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308063870] [2024-11-13 23:46:15,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:46:15,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 23:46:15,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:15,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 23:46:15,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2024-11-13 23:46:15,690 INFO L87 Difference]: Start difference. First operand 22774 states and 107380 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:46:19,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:19,142 INFO L93 Difference]: Finished difference Result 29510 states and 138776 transitions. [2024-11-13 23:46:19,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-13 23:46:19,142 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-13 23:46:19,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:19,553 INFO L225 Difference]: With dead ends: 29510 [2024-11-13 23:46:19,553 INFO L226 Difference]: Without dead ends: 29111 [2024-11-13 23:46:19,559 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1071 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=419, Invalid=3613, Unknown=0, NotChecked=0, Total=4032 [2024-11-13 23:46:19,560 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 854 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 6076 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 6095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 6076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:19,560 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 825 Invalid, 6095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 6076 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-13 23:46:19,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29111 states. [2024-11-13 23:46:19,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29111 to 23062. [2024-11-13 23:46:20,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23062 states, 23061 states have (on average 4.714279519535146) internal successors, (108716), 23061 states have internal predecessors, (108716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:46:20,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23062 states to 23062 states and 108716 transitions. [2024-11-13 23:46:20,120 INFO L78 Accepts]: Start accepts. Automaton has 23062 states and 108716 transitions. Word has length 65 [2024-11-13 23:46:20,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:20,121 INFO L471 AbstractCegarLoop]: Abstraction has 23062 states and 108716 transitions. [2024-11-13 23:46:20,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:46:20,121 INFO L276 IsEmpty]: Start isEmpty. Operand 23062 states and 108716 transitions. [2024-11-13 23:46:20,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 23:46:20,169 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:20,169 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] [2024-11-13 23:46:20,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 23:46:20,169 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2024-11-13 23:46:20,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:20,170 INFO L85 PathProgramCache]: Analyzing trace with hash -977694041, now seen corresponding path program 16 times [2024-11-13 23:46:20,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:20,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892315616] [2024-11-13 23:46:20,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:20,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:20,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:20,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:20,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892315616] [2024-11-13 23:46:20,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892315616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:46:20,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:46:20,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-13 23:46:20,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55492510] [2024-11-13 23:46:20,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:46:20,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 23:46:20,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:20,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 23:46:20,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2024-11-13 23:46:20,916 INFO L87 Difference]: Start difference. First operand 23062 states and 108716 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:46:24,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:24,368 INFO L93 Difference]: Finished difference Result 31897 states and 150657 transitions. [2024-11-13 23:46:24,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-11-13 23:46:24,368 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-13 23:46:24,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:24,759 INFO L225 Difference]: With dead ends: 31897 [2024-11-13 23:46:24,759 INFO L226 Difference]: Without dead ends: 31429 [2024-11-13 23:46:24,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1225 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=436, Invalid=3986, Unknown=0, NotChecked=0, Total=4422 [2024-11-13 23:46:24,766 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 857 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 6188 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 6212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 6188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:24,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 899 Invalid, 6212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 6188 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-13 23:46:24,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31429 states. [2024-11-13 23:46:25,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31429 to 23022. [2024-11-13 23:46:25,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23022 states, 23021 states have (on average 4.715346857217323) internal successors, (108552), 23021 states have internal predecessors, (108552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:46:25,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23022 states to 23022 states and 108552 transitions. [2024-11-13 23:46:25,585 INFO L78 Accepts]: Start accepts. Automaton has 23022 states and 108552 transitions. Word has length 65 [2024-11-13 23:46:25,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:25,585 INFO L471 AbstractCegarLoop]: Abstraction has 23022 states and 108552 transitions. [2024-11-13 23:46:25,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:46:25,585 INFO L276 IsEmpty]: Start isEmpty. Operand 23022 states and 108552 transitions. [2024-11-13 23:46:25,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 23:46:25,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:25,649 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] [2024-11-13 23:46:25,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 23:46:25,649 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2024-11-13 23:46:25,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:25,650 INFO L85 PathProgramCache]: Analyzing trace with hash 2139906653, now seen corresponding path program 17 times [2024-11-13 23:46:25,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:25,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076772110] [2024-11-13 23:46:25,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:25,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:26,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:26,674 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:26,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076772110] [2024-11-13 23:46:26,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076772110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:46:26,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:46:26,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-13 23:46:26,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758936072] [2024-11-13 23:46:26,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:46:26,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 23:46:26,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:26,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 23:46:26,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2024-11-13 23:46:26,676 INFO L87 Difference]: Start difference. First operand 23022 states and 108552 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:46:30,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:30,351 INFO L93 Difference]: Finished difference Result 33495 states and 158444 transitions. [2024-11-13 23:46:30,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2024-11-13 23:46:30,352 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-13 23:46:30,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:30,488 INFO L225 Difference]: With dead ends: 33495 [2024-11-13 23:46:30,488 INFO L226 Difference]: Without dead ends: 33096 [2024-11-13 23:46:30,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1596 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=513, Invalid=4889, Unknown=0, NotChecked=0, Total=5402 [2024-11-13 23:46:30,500 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 1008 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 6329 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 6359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 6329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:30,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1008 Valid, 889 Invalid, 6359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 6329 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-13 23:46:30,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33096 states. [2024-11-13 23:46:31,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33096 to 23054. [2024-11-13 23:46:31,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23054 states, 23053 states have (on average 4.713659827354357) internal successors, (108664), 23053 states have internal predecessors, (108664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:46:31,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23054 states to 23054 states and 108664 transitions. [2024-11-13 23:46:31,440 INFO L78 Accepts]: Start accepts. Automaton has 23054 states and 108664 transitions. Word has length 65 [2024-11-13 23:46:31,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:31,441 INFO L471 AbstractCegarLoop]: Abstraction has 23054 states and 108664 transitions. [2024-11-13 23:46:31,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:46:31,441 INFO L276 IsEmpty]: Start isEmpty. Operand 23054 states and 108664 transitions. [2024-11-13 23:46:31,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 23:46:31,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:31,486 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] [2024-11-13 23:46:31,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 23:46:31,486 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2024-11-13 23:46:31,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:31,487 INFO L85 PathProgramCache]: Analyzing trace with hash 2088705207, now seen corresponding path program 18 times [2024-11-13 23:46:31,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:31,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3821535] [2024-11-13 23:46:31,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:31,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:31,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:32,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:32,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:32,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3821535] [2024-11-13 23:46:32,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3821535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:46:32,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:46:32,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-13 23:46:32,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707029398] [2024-11-13 23:46:32,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:46:32,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 23:46:32,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:32,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 23:46:32,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2024-11-13 23:46:32,042 INFO L87 Difference]: Start difference. First operand 23054 states and 108664 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:46:35,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:35,549 INFO L93 Difference]: Finished difference Result 33844 states and 160717 transitions. [2024-11-13 23:46:35,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-11-13 23:46:35,550 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-13 23:46:35,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:35,699 INFO L225 Difference]: With dead ends: 33844 [2024-11-13 23:46:35,700 INFO L226 Difference]: Without dead ends: 33409 [2024-11-13 23:46:35,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1772 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=549, Invalid=5303, Unknown=0, NotChecked=0, Total=5852 [2024-11-13 23:46:35,712 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 1078 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 5367 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1078 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 5396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 5367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:35,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1078 Valid, 792 Invalid, 5396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 5367 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 23:46:35,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33409 states. [2024-11-13 23:46:36,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33409 to 23022. [2024-11-13 23:46:36,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23022 states, 23021 states have (on average 4.714651839624691) internal successors, (108536), 23021 states have internal predecessors, (108536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:46:36,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23022 states to 23022 states and 108536 transitions. [2024-11-13 23:46:36,647 INFO L78 Accepts]: Start accepts. Automaton has 23022 states and 108536 transitions. Word has length 65 [2024-11-13 23:46:36,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:36,648 INFO L471 AbstractCegarLoop]: Abstraction has 23022 states and 108536 transitions. [2024-11-13 23:46:36,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:46:36,648 INFO L276 IsEmpty]: Start isEmpty. Operand 23022 states and 108536 transitions. [2024-11-13 23:46:36,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 23:46:36,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:36,698 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] [2024-11-13 23:46:36,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 23:46:36,699 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2024-11-13 23:46:36,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:36,699 INFO L85 PathProgramCache]: Analyzing trace with hash 854024981, now seen corresponding path program 19 times [2024-11-13 23:46:36,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:36,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409639983] [2024-11-13 23:46:36,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:36,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:36,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:37,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:37,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:37,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409639983] [2024-11-13 23:46:37,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409639983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:46:37,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:46:37,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-13 23:46:37,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583093155] [2024-11-13 23:46:37,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:46:37,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 23:46:37,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:37,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 23:46:37,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2024-11-13 23:46:37,244 INFO L87 Difference]: Start difference. First operand 23022 states and 108536 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)