./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i --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_6f646001-d9fa-43c3-a6ed-2661766e3c71/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f646001-d9fa-43c3-a6ed-2661766e3c71/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_6f646001-d9fa-43c3-a6ed-2661766e3c71/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f646001-d9fa-43c3-a6ed-2661766e3c71/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f646001-d9fa-43c3-a6ed-2661766e3c71/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_6f646001-d9fa-43c3-a6ed-2661766e3c71/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 4633300b13c3e317f8d3cd1cc05f3f76ba271ffedabaa8599cd9617354fa2b7b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:34:49,406 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:34:49,484 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f646001-d9fa-43c3-a6ed-2661766e3c71/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-14 03:34:49,490 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:34:49,490 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:34:49,514 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:34:49,515 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:34:49,515 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:34:49,515 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:34:49,515 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:34:49,515 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:34:49,515 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:34:49,516 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:34:49,516 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:34:49,516 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:34:49,516 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:34:49,516 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:34:49,516 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:34:49,516 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:34:49,516 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:34:49,517 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:34:49,517 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:34:49,517 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 03:34:49,517 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 03:34:49,517 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:34:49,517 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:34:49,517 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:34:49,518 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:34:49,518 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:34:49,518 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 03:34:49,518 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 03:34:49,518 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-14 03:34:49,518 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:34:49,518 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:34:49,518 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:34:49,518 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:34:49,518 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:34:49,519 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:34:49,519 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:34:49,519 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:34:49,519 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:34:49,519 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:34:49,519 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:34:49,523 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:34:49,524 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:34:49,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:34:49,524 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:34:49,524 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:34:49,524 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:34:49,524 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_6f646001-d9fa-43c3-a6ed-2661766e3c71/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 -> 4633300b13c3e317f8d3cd1cc05f3f76ba271ffedabaa8599cd9617354fa2b7b [2024-11-14 03:34:49,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:34:49,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:34:49,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:34:49,815 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:34:49,815 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:34:49,816 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f646001-d9fa-43c3-a6ed-2661766e3c71/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i Unable to find full path for "g++" [2024-11-14 03:34:51,636 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:34:52,049 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:34:52,049 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f646001-d9fa-43c3-a6ed-2661766e3c71/sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-14 03:34:52,071 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f646001-d9fa-43c3-a6ed-2661766e3c71/bin/utaipan-verify-sOmjnqqW8E/data/525d91700/b8b75c3e6ba5411280493bdffbbe91fa/FLAGa1f9e3518 [2024-11-14 03:34:52,224 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f646001-d9fa-43c3-a6ed-2661766e3c71/bin/utaipan-verify-sOmjnqqW8E/data/525d91700/b8b75c3e6ba5411280493bdffbbe91fa [2024-11-14 03:34:52,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:34:52,231 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:34:52,232 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:34:52,232 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:34:52,237 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:34:52,242 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:34:52" (1/1) ... [2024-11-14 03:34:52,243 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28296d3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:34:52, skipping insertion in model container [2024-11-14 03:34:52,243 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:34:52" (1/1) ... [2024-11-14 03:34:52,295 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:34:52,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:34:52,807 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:34:52,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:34:52,929 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:34:52,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:34:52 WrapperNode [2024-11-14 03:34:52,931 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:34:52,932 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:34:52,932 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:34:52,933 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:34:52,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:34:52" (1/1) ... [2024-11-14 03:34:52,960 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:34:52" (1/1) ... [2024-11-14 03:34:52,987 INFO L138 Inliner]: procedures = 176, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 67 [2024-11-14 03:34:52,988 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:34:52,988 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:34:52,988 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:34:52,988 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:34:52,996 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:34:52" (1/1) ... [2024-11-14 03:34:52,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:34:52" (1/1) ... [2024-11-14 03:34:53,002 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:34:52" (1/1) ... [2024-11-14 03:34:53,004 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:34:52" (1/1) ... [2024-11-14 03:34:53,010 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:34:52" (1/1) ... [2024-11-14 03:34:53,012 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:34:52" (1/1) ... [2024-11-14 03:34:53,013 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:34:52" (1/1) ... [2024-11-14 03:34:53,014 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:34:52" (1/1) ... [2024-11-14 03:34:53,016 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:34:53,017 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:34:53,017 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:34:53,017 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:34:53,018 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:34:52" (1/1) ... [2024-11-14 03:34:53,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:34:53,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f646001-d9fa-43c3-a6ed-2661766e3c71/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:34:53,047 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f646001-d9fa-43c3-a6ed-2661766e3c71/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:34:53,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f646001-d9fa-43c3-a6ed-2661766e3c71/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:34:53,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-14 03:34:53,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:34:53,075 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-14 03:34:53,075 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-14 03:34:53,075 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-14 03:34:53,075 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-14 03:34:53,075 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-14 03:34:53,075 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-14 03:34:53,075 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-14 03:34:53,076 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-14 03:34:53,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:34:53,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-14 03:34:53,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:34:53,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:34:53,078 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-14 03:34:53,231 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:34:53,233 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:34:53,412 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-14 03:34:53,412 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:34:53,532 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:34:53,532 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 03:34:53,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:34:53 BoogieIcfgContainer [2024-11-14 03:34:53,533 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:34:53,535 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:34:53,536 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:34:53,540 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:34:53,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:34:52" (1/3) ... [2024-11-14 03:34:53,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b0309e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:34:53, skipping insertion in model container [2024-11-14 03:34:53,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:34:52" (2/3) ... [2024-11-14 03:34:53,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b0309e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:34:53, skipping insertion in model container [2024-11-14 03:34:53,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:34:53" (3/3) ... [2024-11-14 03:34:53,543 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-14 03:34:53,560 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:34:53,561 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i that has 5 procedures, 49 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-14 03:34:53,562 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-14 03:34:53,636 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-14 03:34:53,682 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 50 transitions, 116 flow [2024-11-14 03:34:55,367 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 25384 states, 25382 states have (on average 4.424237648727445) internal successors, (112296), 25383 states have internal predecessors, (112296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:34:55,398 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:34:55,413 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;@2410b5a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:34:55,414 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-14 03:34:55,482 INFO L276 IsEmpty]: Start isEmpty. Operand has 25384 states, 25382 states have (on average 4.424237648727445) internal successors, (112296), 25383 states have internal predecessors, (112296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:34:55,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-14 03:34:55,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:34:55,543 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:34:55,544 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-14 03:34:55,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:34:55,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1736773628, now seen corresponding path program 1 times [2024-11-14 03:34:55,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:34:55,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219065474] [2024-11-14 03:34:55,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:34:55,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:34:55,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:34:55,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:34:55,918 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:34:55,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219065474] [2024-11-14 03:34:55,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219065474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:34:55,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:34:55,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:34:55,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004412946] [2024-11-14 03:34:55,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:34:55,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:34:55,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:34:55,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:34:55,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:34:56,008 INFO L87 Difference]: Start difference. First operand has 25384 states, 25382 states have (on average 4.424237648727445) internal successors, (112296), 25383 states have internal predecessors, (112296), 0 states have call successors, (0), 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, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:34:56,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:34:57,001 INFO L93 Difference]: Finished difference Result 28912 states and 127752 transitions. [2024-11-14 03:34:57,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:34:57,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-14 03:34:57,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:34:57,470 INFO L225 Difference]: With dead ends: 28912 [2024-11-14 03:34:57,471 INFO L226 Difference]: Without dead ends: 18328 [2024-11-14 03:34:57,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:34:57,515 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:34:57,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 24 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:34:57,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18328 states. [2024-11-14 03:34:58,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18328 to 18328. [2024-11-14 03:34:58,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18328 states, 18327 states have (on average 4.24815845473891) internal successors, (77856), 18327 states have internal predecessors, (77856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:34:59,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18328 states to 18328 states and 77856 transitions. [2024-11-14 03:34:59,081 INFO L78 Accepts]: Start accepts. Automaton has 18328 states and 77856 transitions. Word has length 17 [2024-11-14 03:34:59,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:34:59,083 INFO L471 AbstractCegarLoop]: Abstraction has 18328 states and 77856 transitions. [2024-11-14 03:34:59,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:34:59,085 INFO L276 IsEmpty]: Start isEmpty. Operand 18328 states and 77856 transitions. [2024-11-14 03:34:59,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-14 03:34:59,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:34:59,351 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:34:59,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:34:59,354 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-14 03:34:59,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:34:59,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1736774980, now seen corresponding path program 1 times [2024-11-14 03:34:59,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:34:59,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884706145] [2024-11-14 03:34:59,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:34:59,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:34:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:00,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:35:00,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:35:00,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884706145] [2024-11-14 03:35:00,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884706145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:35:00,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:35:00,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:35:00,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175222615] [2024-11-14 03:35:00,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:35:00,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:35:00,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:35:00,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:35:00,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:35:00,185 INFO L87 Difference]: Start difference. First operand 18328 states and 77856 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:01,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:35:01,444 INFO L93 Difference]: Finished difference Result 38092 states and 159936 transitions. [2024-11-14 03:35:01,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:35:01,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-14 03:35:01,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:35:01,676 INFO L225 Difference]: With dead ends: 38092 [2024-11-14 03:35:01,676 INFO L226 Difference]: Without dead ends: 25528 [2024-11-14 03:35:01,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:35:01,708 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 97 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:35:01,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 193 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:35:01,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25528 states. [2024-11-14 03:35:02,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25528 to 20968. [2024-11-14 03:35:02,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20968 states, 20967 states have (on average 4.192492965135689) internal successors, (87904), 20967 states have internal predecessors, (87904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:02,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20968 states to 20968 states and 87904 transitions. [2024-11-14 03:35:03,009 INFO L78 Accepts]: Start accepts. Automaton has 20968 states and 87904 transitions. Word has length 17 [2024-11-14 03:35:03,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:35:03,010 INFO L471 AbstractCegarLoop]: Abstraction has 20968 states and 87904 transitions. [2024-11-14 03:35:03,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:03,011 INFO L276 IsEmpty]: Start isEmpty. Operand 20968 states and 87904 transitions. [2024-11-14 03:35:03,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 03:35:03,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:35:03,040 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:35:03,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:35:03,040 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-14 03:35:03,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:35:03,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1698268803, now seen corresponding path program 1 times [2024-11-14 03:35:03,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:35:03,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951744358] [2024-11-14 03:35:03,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:03,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:35:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:03,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:35:03,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:35:03,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951744358] [2024-11-14 03:35:03,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951744358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:35:03,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:35:03,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:35:03,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108891372] [2024-11-14 03:35:03,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:35:03,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:35:03,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:35:03,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:35:03,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:35:03,541 INFO L87 Difference]: Start difference. First operand 20968 states and 87904 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:04,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:35:04,610 INFO L93 Difference]: Finished difference Result 31708 states and 131756 transitions. [2024-11-14 03:35:04,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 03:35:04,611 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2024-11-14 03:35:04,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:35:04,843 INFO L225 Difference]: With dead ends: 31708 [2024-11-14 03:35:04,844 INFO L226 Difference]: Without dead ends: 22288 [2024-11-14 03:35:04,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:35:04,883 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 122 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:35:04,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 279 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:35:04,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22288 states. [2024-11-14 03:35:06,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22288 to 17728. [2024-11-14 03:35:06,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17728 states, 17727 states have (on average 4.162689682405371) internal successors, (73792), 17727 states have internal predecessors, (73792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:06,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17728 states to 17728 states and 73792 transitions. [2024-11-14 03:35:06,230 INFO L78 Accepts]: Start accepts. Automaton has 17728 states and 73792 transitions. Word has length 19 [2024-11-14 03:35:06,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:35:06,231 INFO L471 AbstractCegarLoop]: Abstraction has 17728 states and 73792 transitions. [2024-11-14 03:35:06,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:06,232 INFO L276 IsEmpty]: Start isEmpty. Operand 17728 states and 73792 transitions. [2024-11-14 03:35:06,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 03:35:06,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:35:06,254 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:35:06,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 03:35:06,254 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-14 03:35:06,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:35:06,257 INFO L85 PathProgramCache]: Analyzing trace with hash 584684899, now seen corresponding path program 1 times [2024-11-14 03:35:06,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:35:06,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996005586] [2024-11-14 03:35:06,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:06,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:35:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:06,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:35:06,539 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:35:06,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996005586] [2024-11-14 03:35:06,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996005586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:35:06,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:35:06,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:35:06,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155483045] [2024-11-14 03:35:06,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:35:06,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:35:06,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:35:06,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:35:06,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:35:06,542 INFO L87 Difference]: Start difference. First operand 17728 states and 73792 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:07,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:35:07,489 INFO L93 Difference]: Finished difference Result 27832 states and 114822 transitions. [2024-11-14 03:35:07,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 03:35:07,490 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2024-11-14 03:35:07,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:35:07,648 INFO L225 Difference]: With dead ends: 27832 [2024-11-14 03:35:07,649 INFO L226 Difference]: Without dead ends: 20188 [2024-11-14 03:35:07,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:35:07,674 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 122 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:35:07,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 244 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:35:07,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20188 states. [2024-11-14 03:35:08,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20188 to 16828. [2024-11-14 03:35:08,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16828 states, 16827 states have (on average 4.13751708563618) internal successors, (69622), 16827 states have internal predecessors, (69622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:08,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16828 states to 16828 states and 69622 transitions. [2024-11-14 03:35:08,610 INFO L78 Accepts]: Start accepts. Automaton has 16828 states and 69622 transitions. Word has length 19 [2024-11-14 03:35:08,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:35:08,611 INFO L471 AbstractCegarLoop]: Abstraction has 16828 states and 69622 transitions. [2024-11-14 03:35:08,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:08,611 INFO L276 IsEmpty]: Start isEmpty. Operand 16828 states and 69622 transitions. [2024-11-14 03:35:08,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-14 03:35:08,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:35:08,642 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] [2024-11-14 03:35:08,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 03:35:08,642 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-14 03:35:08,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:35:08,643 INFO L85 PathProgramCache]: Analyzing trace with hash -77931614, now seen corresponding path program 1 times [2024-11-14 03:35:08,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:35:08,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557158978] [2024-11-14 03:35:08,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:08,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:35:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:08,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:35:08,948 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:35:08,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557158978] [2024-11-14 03:35:08,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557158978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:35:08,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:35:08,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:35:08,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024369903] [2024-11-14 03:35:08,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:35:08,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:35:08,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:35:08,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:35:08,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:35:08,952 INFO L87 Difference]: Start difference. First operand 16828 states and 69622 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:09,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:35:09,517 INFO L93 Difference]: Finished difference Result 23956 states and 98116 transitions. [2024-11-14 03:35:09,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 03:35:09,522 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-14 03:35:09,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:35:09,727 INFO L225 Difference]: With dead ends: 23956 [2024-11-14 03:35:09,727 INFO L226 Difference]: Without dead ends: 18988 [2024-11-14 03:35:09,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:35:09,749 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 125 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:35:09,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 189 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:35:09,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18988 states. [2024-11-14 03:35:10,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18988 to 15628. [2024-11-14 03:35:10,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15628 states, 15627 states have (on average 4.118640813975811) internal successors, (64362), 15627 states have internal predecessors, (64362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:10,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15628 states to 15628 states and 64362 transitions. [2024-11-14 03:35:10,797 INFO L78 Accepts]: Start accepts. Automaton has 15628 states and 64362 transitions. Word has length 21 [2024-11-14 03:35:10,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:35:10,798 INFO L471 AbstractCegarLoop]: Abstraction has 15628 states and 64362 transitions. [2024-11-14 03:35:10,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:10,798 INFO L276 IsEmpty]: Start isEmpty. Operand 15628 states and 64362 transitions. [2024-11-14 03:35:10,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-14 03:35:10,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:35:10,838 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] [2024-11-14 03:35:10,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 03:35:10,839 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-14 03:35:10,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:35:10,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1675605409, now seen corresponding path program 1 times [2024-11-14 03:35:10,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:35:10,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817489803] [2024-11-14 03:35:10,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:10,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:35:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:11,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:35:11,139 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:35:11,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817489803] [2024-11-14 03:35:11,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817489803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:35:11,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:35:11,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:35:11,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043717496] [2024-11-14 03:35:11,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:35:11,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:35:11,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:35:11,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:35:11,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:35:11,141 INFO L87 Difference]: Start difference. First operand 15628 states and 64362 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:11,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:35:11,790 INFO L93 Difference]: Finished difference Result 24748 states and 101098 transitions. [2024-11-14 03:35:11,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:35:11,794 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-11-14 03:35:11,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:35:12,320 INFO L225 Difference]: With dead ends: 24748 [2024-11-14 03:35:12,320 INFO L226 Difference]: Without dead ends: 16348 [2024-11-14 03:35:12,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:35:12,337 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 102 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:35:12,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 234 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:35:12,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16348 states. [2024-11-14 03:35:12,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16348 to 12508. [2024-11-14 03:35:12,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12508 states, 12507 states have (on average 4.071799792116415) internal successors, (50926), 12507 states have internal predecessors, (50926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:12,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12508 states to 12508 states and 50926 transitions. [2024-11-14 03:35:12,784 INFO L78 Accepts]: Start accepts. Automaton has 12508 states and 50926 transitions. Word has length 22 [2024-11-14 03:35:12,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:35:12,784 INFO L471 AbstractCegarLoop]: Abstraction has 12508 states and 50926 transitions. [2024-11-14 03:35:12,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:12,785 INFO L276 IsEmpty]: Start isEmpty. Operand 12508 states and 50926 transitions. [2024-11-14 03:35:12,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-14 03:35:12,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:35:12,802 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] [2024-11-14 03:35:12,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 03:35:12,802 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-14 03:35:12,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:35:12,803 INFO L85 PathProgramCache]: Analyzing trace with hash 988190049, now seen corresponding path program 1 times [2024-11-14 03:35:12,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:35:12,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112052073] [2024-11-14 03:35:12,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:12,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:35:12,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:13,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:35:13,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:35:13,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112052073] [2024-11-14 03:35:13,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112052073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:35:13,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:35:13,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:35:13,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403393268] [2024-11-14 03:35:13,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:35:13,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:35:13,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:35:13,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:35:13,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:35:13,079 INFO L87 Difference]: Start difference. First operand 12508 states and 50926 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:13,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:35:13,616 INFO L93 Difference]: Finished difference Result 21548 states and 86458 transitions. [2024-11-14 03:35:13,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 03:35:13,617 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-14 03:35:13,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:35:13,743 INFO L225 Difference]: With dead ends: 21548 [2024-11-14 03:35:13,743 INFO L226 Difference]: Without dead ends: 11828 [2024-11-14 03:35:13,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:35:13,770 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 183 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:35:13,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 170 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:35:13,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11828 states. [2024-11-14 03:35:14,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11828 to 9268. [2024-11-14 03:35:14,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9268 states, 9267 states have (on average 3.9803604186899753) internal successors, (36886), 9267 states have internal predecessors, (36886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:14,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9268 states to 9268 states and 36886 transitions. [2024-11-14 03:35:14,460 INFO L78 Accepts]: Start accepts. Automaton has 9268 states and 36886 transitions. Word has length 23 [2024-11-14 03:35:14,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:35:14,460 INFO L471 AbstractCegarLoop]: Abstraction has 9268 states and 36886 transitions. [2024-11-14 03:35:14,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:14,460 INFO L276 IsEmpty]: Start isEmpty. Operand 9268 states and 36886 transitions. [2024-11-14 03:35:14,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-14 03:35:14,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:35:14,477 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] [2024-11-14 03:35:14,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 03:35:14,477 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-14 03:35:14,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:35:14,478 INFO L85 PathProgramCache]: Analyzing trace with hash -137460928, now seen corresponding path program 1 times [2024-11-14 03:35:14,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:35:14,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624255655] [2024-11-14 03:35:14,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:14,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:35:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:14,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:35:14,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:35:14,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624255655] [2024-11-14 03:35:14,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624255655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:35:14,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:35:14,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:35:14,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919958017] [2024-11-14 03:35:14,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:35:14,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:35:14,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:35:14,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:35:14,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:35:14,651 INFO L87 Difference]: Start difference. First operand 9268 states and 36886 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:14,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:35:14,910 INFO L93 Difference]: Finished difference Result 15428 states and 61114 transitions. [2024-11-14 03:35:14,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:35:14,910 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-14 03:35:14,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:35:14,990 INFO L225 Difference]: With dead ends: 15428 [2024-11-14 03:35:14,990 INFO L226 Difference]: Without dead ends: 8238 [2024-11-14 03:35:15,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:35:15,009 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 89 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:35:15,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 150 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:35:15,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8238 states. [2024-11-14 03:35:15,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8238 to 8238. [2024-11-14 03:35:15,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8238 states, 8237 states have (on average 3.9475537210149327) internal successors, (32516), 8237 states have internal predecessors, (32516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:15,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8238 states to 8238 states and 32516 transitions. [2024-11-14 03:35:15,282 INFO L78 Accepts]: Start accepts. Automaton has 8238 states and 32516 transitions. Word has length 25 [2024-11-14 03:35:15,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:35:15,282 INFO L471 AbstractCegarLoop]: Abstraction has 8238 states and 32516 transitions. [2024-11-14 03:35:15,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:15,283 INFO L276 IsEmpty]: Start isEmpty. Operand 8238 states and 32516 transitions. [2024-11-14 03:35:15,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-14 03:35:15,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:35:15,295 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] [2024-11-14 03:35:15,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 03:35:15,296 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-14 03:35:15,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:35:15,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1916458526, now seen corresponding path program 2 times [2024-11-14 03:35:15,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:35:15,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020720467] [2024-11-14 03:35:15,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:15,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:35:15,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:15,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:35:15,570 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:35:15,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020720467] [2024-11-14 03:35:15,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020720467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:35:15,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:35:15,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:35:15,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342472648] [2024-11-14 03:35:15,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:35:15,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:35:15,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:35:15,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:35:15,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:35:15,576 INFO L87 Difference]: Start difference. First operand 8238 states and 32516 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:15,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:35:15,764 INFO L93 Difference]: Finished difference Result 12950 states and 50444 transitions. [2024-11-14 03:35:15,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:35:15,765 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-14 03:35:15,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:35:15,846 INFO L225 Difference]: With dead ends: 12950 [2024-11-14 03:35:15,846 INFO L226 Difference]: Without dead ends: 7398 [2024-11-14 03:35:15,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:35:15,860 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 64 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:35:15,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 58 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:35:15,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7398 states. [2024-11-14 03:35:16,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7398 to 7398. [2024-11-14 03:35:16,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7398 states, 7397 states have (on average 3.855617142084629) internal successors, (28520), 7397 states have internal predecessors, (28520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:16,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7398 states to 7398 states and 28520 transitions. [2024-11-14 03:35:16,143 INFO L78 Accepts]: Start accepts. Automaton has 7398 states and 28520 transitions. Word has length 25 [2024-11-14 03:35:16,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:35:16,144 INFO L471 AbstractCegarLoop]: Abstraction has 7398 states and 28520 transitions. [2024-11-14 03:35:16,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:16,144 INFO L276 IsEmpty]: Start isEmpty. Operand 7398 states and 28520 transitions. [2024-11-14 03:35:16,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-14 03:35:16,161 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:35:16,161 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] [2024-11-14 03:35:16,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 03:35:16,161 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-14 03:35:16,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:35:16,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1166485983, now seen corresponding path program 1 times [2024-11-14 03:35:16,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:35:16,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104275790] [2024-11-14 03:35:16,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:16,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:35:16,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:16,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:35:16,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:35:16,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104275790] [2024-11-14 03:35:16,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104275790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:35:16,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:35:16,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:35:16,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317361457] [2024-11-14 03:35:16,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:35:16,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:35:16,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:35:16,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:35:16,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:35:16,379 INFO L87 Difference]: Start difference. First operand 7398 states and 28520 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:16,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:35:16,554 INFO L93 Difference]: Finished difference Result 10142 states and 38312 transitions. [2024-11-14 03:35:16,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:35:16,554 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2024-11-14 03:35:16,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:35:16,609 INFO L225 Difference]: With dead ends: 10142 [2024-11-14 03:35:16,609 INFO L226 Difference]: Without dead ends: 5430 [2024-11-14 03:35:16,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:35:16,618 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 110 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:35:16,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 76 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:35:16,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5430 states. [2024-11-14 03:35:16,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5430 to 5430. [2024-11-14 03:35:16,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5430 states, 5429 states have (on average 3.670657579664763) internal successors, (19928), 5429 states have internal predecessors, (19928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:16,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5430 states to 5430 states and 19928 transitions. [2024-11-14 03:35:16,860 INFO L78 Accepts]: Start accepts. Automaton has 5430 states and 19928 transitions. Word has length 27 [2024-11-14 03:35:16,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:35:16,860 INFO L471 AbstractCegarLoop]: Abstraction has 5430 states and 19928 transitions. [2024-11-14 03:35:16,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:16,861 INFO L276 IsEmpty]: Start isEmpty. Operand 5430 states and 19928 transitions. [2024-11-14 03:35:16,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-14 03:35:16,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:35:16,872 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] [2024-11-14 03:35:16,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 03:35:16,873 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-14 03:35:16,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:35:16,873 INFO L85 PathProgramCache]: Analyzing trace with hash 563342712, now seen corresponding path program 1 times [2024-11-14 03:35:16,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:35:16,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151913248] [2024-11-14 03:35:16,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:16,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:35:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:17,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:35:17,048 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:35:17,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151913248] [2024-11-14 03:35:17,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151913248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:35:17,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:35:17,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:35:17,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882901903] [2024-11-14 03:35:17,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:35:17,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:35:17,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:35:17,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:35:17,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:35:17,049 INFO L87 Difference]: Start difference. First operand 5430 states and 19928 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:17,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:35:17,292 INFO L93 Difference]: Finished difference Result 6342 states and 22888 transitions. [2024-11-14 03:35:17,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:35:17,293 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2024-11-14 03:35:17,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:35:17,336 INFO L225 Difference]: With dead ends: 6342 [2024-11-14 03:35:17,337 INFO L226 Difference]: Without dead ends: 3598 [2024-11-14 03:35:17,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:35:17,344 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 161 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:35:17,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 85 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:35:17,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3598 states. [2024-11-14 03:35:17,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3598 to 3598. [2024-11-14 03:35:17,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3598 states, 3597 states have (on average 3.5396163469557966) internal successors, (12732), 3597 states have internal predecessors, (12732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:17,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3598 states to 3598 states and 12732 transitions. [2024-11-14 03:35:17,499 INFO L78 Accepts]: Start accepts. Automaton has 3598 states and 12732 transitions. Word has length 29 [2024-11-14 03:35:17,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:35:17,499 INFO L471 AbstractCegarLoop]: Abstraction has 3598 states and 12732 transitions. [2024-11-14 03:35:17,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:17,499 INFO L276 IsEmpty]: Start isEmpty. Operand 3598 states and 12732 transitions. [2024-11-14 03:35:17,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-14 03:35:17,508 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:35:17,508 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] [2024-11-14 03:35:17,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 03:35:17,509 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-14 03:35:17,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:35:17,509 INFO L85 PathProgramCache]: Analyzing trace with hash -957761956, now seen corresponding path program 1 times [2024-11-14 03:35:17,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:35:17,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879935810] [2024-11-14 03:35:17,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:17,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:35:17,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:17,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:35:17,759 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:35:17,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879935810] [2024-11-14 03:35:17,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879935810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:35:17,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:35:17,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:35:17,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618170632] [2024-11-14 03:35:17,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:35:17,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:35:17,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:35:17,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:35:17,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:35:17,761 INFO L87 Difference]: Start difference. First operand 3598 states and 12732 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:18,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:35:18,048 INFO L93 Difference]: Finished difference Result 5102 states and 17892 transitions. [2024-11-14 03:35:18,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:35:18,049 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2024-11-14 03:35:18,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:35:18,114 INFO L225 Difference]: With dead ends: 5102 [2024-11-14 03:35:18,114 INFO L226 Difference]: Without dead ends: 3230 [2024-11-14 03:35:18,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-14 03:35:18,120 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 98 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:35:18,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 246 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:35:18,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3230 states. [2024-11-14 03:35:18,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3230 to 3070. [2024-11-14 03:35:18,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3070 states, 3069 states have (on average 3.494297816878462) internal successors, (10724), 3069 states have internal predecessors, (10724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:18,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3070 states to 3070 states and 10724 transitions. [2024-11-14 03:35:18,292 INFO L78 Accepts]: Start accepts. Automaton has 3070 states and 10724 transitions. Word has length 32 [2024-11-14 03:35:18,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:35:18,293 INFO L471 AbstractCegarLoop]: Abstraction has 3070 states and 10724 transitions. [2024-11-14 03:35:18,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:18,294 INFO L276 IsEmpty]: Start isEmpty. Operand 3070 states and 10724 transitions. [2024-11-14 03:35:18,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-14 03:35:18,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:35:18,305 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] [2024-11-14 03:35:18,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-14 03:35:18,306 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-14 03:35:18,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:35:18,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1730734192, now seen corresponding path program 2 times [2024-11-14 03:35:18,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:35:18,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112718345] [2024-11-14 03:35:18,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:18,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:35:18,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:18,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:35:18,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:35:18,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112718345] [2024-11-14 03:35:18,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112718345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:35:18,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:35:18,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:35:18,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999186327] [2024-11-14 03:35:18,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:35:18,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:35:18,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:35:18,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:35:18,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:35:18,523 INFO L87 Difference]: Start difference. First operand 3070 states and 10724 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:18,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:35:18,755 INFO L93 Difference]: Finished difference Result 3198 states and 11092 transitions. [2024-11-14 03:35:18,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:35:18,756 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2024-11-14 03:35:18,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:35:18,812 INFO L225 Difference]: With dead ends: 3198 [2024-11-14 03:35:18,812 INFO L226 Difference]: Without dead ends: 1438 [2024-11-14 03:35:18,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:35:18,815 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 175 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:35:18,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 66 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:35:18,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2024-11-14 03:35:18,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 1438. [2024-11-14 03:35:18,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1438 states, 1437 states have (on average 3.432150313152401) internal successors, (4932), 1437 states have internal predecessors, (4932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:18,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 4932 transitions. [2024-11-14 03:35:18,889 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 4932 transitions. Word has length 32 [2024-11-14 03:35:18,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:35:18,890 INFO L471 AbstractCegarLoop]: Abstraction has 1438 states and 4932 transitions. [2024-11-14 03:35:18,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:18,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 4932 transitions. [2024-11-14 03:35:18,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-14 03:35:18,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:35:18,894 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] [2024-11-14 03:35:18,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 03:35:18,894 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-14 03:35:18,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:35:18,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1947669781, now seen corresponding path program 1 times [2024-11-14 03:35:18,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:35:18,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655261704] [2024-11-14 03:35:18,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:18,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:35:18,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:19,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:35:19,135 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:35:19,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655261704] [2024-11-14 03:35:19,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655261704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:35:19,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:35:19,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:35:19,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140065107] [2024-11-14 03:35:19,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:35:19,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:35:19,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:35:19,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:35:19,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:35:19,137 INFO L87 Difference]: Start difference. First operand 1438 states and 4932 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:19,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:35:19,356 INFO L93 Difference]: Finished difference Result 1438 states and 4932 transitions. [2024-11-14 03:35:19,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:35:19,358 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2024-11-14 03:35:19,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:35:19,408 INFO L225 Difference]: With dead ends: 1438 [2024-11-14 03:35:19,409 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 03:35:19,411 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:35:19,412 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 48 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:35:19,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 81 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:35:19,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 03:35:19,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 03:35:19,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:19,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 03:35:19,462 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2024-11-14 03:35:19,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:35:19,462 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 03:35:19,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:19,462 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 03:35:19,463 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 03:35:19,467 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-11-14 03:35:19,468 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-11-14 03:35:19,469 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-11-14 03:35:19,469 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-14 03:35:19,471 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-14 03:35:19,471 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-11-14 03:35:19,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-14 03:35:19,477 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:35:19,482 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-14 03:35:19,483 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:35:19,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:35:19 BasicIcfg [2024-11-14 03:35:19,490 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:35:19,491 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:35:19,492 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:35:19,492 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:35:19,493 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:34:53" (3/4) ... [2024-11-14 03:35:19,496 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 03:35:19,501 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-14 03:35:19,501 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-14 03:35:19,501 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-14 03:35:19,501 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2024-11-14 03:35:19,509 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 42 nodes and edges [2024-11-14 03:35:19,510 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-14 03:35:19,510 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-14 03:35:19,510 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-14 03:35:19,619 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f646001-d9fa-43c3-a6ed-2661766e3c71/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 03:35:19,619 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f646001-d9fa-43c3-a6ed-2661766e3c71/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 03:35:19,619 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:35:19,620 INFO L158 Benchmark]: Toolchain (without parser) took 27389.69ms. Allocated memory was 142.6MB in the beginning and 9.9GB in the end (delta: 9.7GB). Free memory was 117.9MB in the beginning and 8.5GB in the end (delta: -8.4GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-11-14 03:35:19,621 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:35:19,621 INFO L158 Benchmark]: CACSL2BoogieTranslator took 699.65ms. Allocated memory is still 142.6MB. Free memory was 117.6MB in the beginning and 97.5MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:35:19,622 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.59ms. Allocated memory is still 142.6MB. Free memory was 97.3MB in the beginning and 95.6MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:35:19,622 INFO L158 Benchmark]: Boogie Preprocessor took 27.81ms. Allocated memory is still 142.6MB. Free memory was 95.6MB in the beginning and 94.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:35:19,622 INFO L158 Benchmark]: RCFGBuilder took 516.36ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 75.0MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:35:19,623 INFO L158 Benchmark]: TraceAbstraction took 25955.13ms. Allocated memory was 142.6MB in the beginning and 9.9GB in the end (delta: 9.7GB). Free memory was 74.5MB in the beginning and 8.5GB in the end (delta: -8.5GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-11-14 03:35:19,623 INFO L158 Benchmark]: Witness Printer took 128.15ms. Allocated memory is still 9.9GB. Free memory was 8.5GB in the beginning and 8.5GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:35:19,626 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 699.65ms. Allocated memory is still 142.6MB. Free memory was 117.6MB in the beginning and 97.5MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.59ms. Allocated memory is still 142.6MB. Free memory was 97.3MB in the beginning and 95.6MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.81ms. Allocated memory is still 142.6MB. Free memory was 95.6MB in the beginning and 94.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 516.36ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 75.0MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 25955.13ms. Allocated memory was 142.6MB in the beginning and 9.9GB in the end (delta: 9.7GB). Free memory was 74.5MB in the beginning and 8.5GB in the end (delta: -8.5GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 128.15ms. Allocated memory is still 9.9GB. Free memory was 8.5GB in the beginning and 8.5GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 786]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 79 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 25.8s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.6s, AutomataDifference: 10.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1521 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1521 mSDsluCounter, 2095 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1510 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1516 IncrementalHoareTripleChecker+Invalid, 1555 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 585 mSDtfsCounter, 1516 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25384occurred in iteration=0, InterpolantAutomatonStates: 100, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.9s AutomataMinimizationTime, 14 MinimizatonAttempts, 22400 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 343 NumberOfCodeBlocks, 343 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 329 ConstructedInterpolants, 0 QuantifiedInterpolants, 1433 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-14 03:35:19,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f646001-d9fa-43c3-a6ed-2661766e3c71/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE