./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix051_pso.opt_rmo.opt_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a11587-4dad-4263-8e61-b58ed516f512/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a11587-4dad-4263-8e61-b58ed516f512/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a11587-4dad-4263-8e61-b58ed516f512/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a11587-4dad-4263-8e61-b58ed516f512/bin/utaipan-verify-DbMuA5NWw2/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix051_pso.opt_rmo.opt_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a11587-4dad-4263-8e61-b58ed516f512/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a11587-4dad-4263-8e61-b58ed516f512/bin/utaipan-verify-DbMuA5NWw2 --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 0f6a99f321ab4c9a330ddab5bc184070524e662cb34c3dfc8d7fb0257fb493dd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:38:10,226 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:38:10,324 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a11587-4dad-4263-8e61-b58ed516f512/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-02 12:38:10,332 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:38:10,335 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:38:10,371 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:38:10,374 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:38:10,375 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:38:10,375 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:38:10,376 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:38:10,377 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:38:10,377 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:38:10,377 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:38:10,380 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:38:10,381 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:38:10,381 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:38:10,381 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:38:10,382 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:38:10,382 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:38:10,382 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:38:10,383 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:38:10,387 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:38:10,387 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 12:38:10,387 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 12:38:10,388 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:38:10,388 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:38:10,388 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:38:10,389 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:38:10,389 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:38:10,389 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-02 12:38:10,389 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-02 12:38:10,390 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-02 12:38:10,390 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:38:10,390 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:38:10,391 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:38:10,391 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:38:10,392 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:38:10,392 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:38:10,392 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:38:10,393 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:38:10,393 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:38:10,394 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:38:10,394 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:38:10,394 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:38:10,394 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:38:10,394 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:38:10,395 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:38:10,395 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:38:10,395 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:38:10,395 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a11587-4dad-4263-8e61-b58ed516f512/bin/utaipan-verify-DbMuA5NWw2/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a11587-4dad-4263-8e61-b58ed516f512/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f6a99f321ab4c9a330ddab5bc184070524e662cb34c3dfc8d7fb0257fb493dd [2024-11-02 12:38:10,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:38:10,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:38:10,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:38:10,743 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:38:10,744 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:38:10,745 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a11587-4dad-4263-8e61-b58ed516f512/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/pthread-wmm/mix051_pso.opt_rmo.opt_tso.opt.i Unable to find full path for "g++" [2024-11-02 12:38:12,771 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:38:13,157 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:38:13,158 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a11587-4dad-4263-8e61-b58ed516f512/sv-benchmarks/c/pthread-wmm/mix051_pso.opt_rmo.opt_tso.opt.i [2024-11-02 12:38:13,175 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a11587-4dad-4263-8e61-b58ed516f512/bin/utaipan-verify-DbMuA5NWw2/data/0977f3898/4fa0782f0ec84ed6a6ced73d69de0503/FLAGdf91677c9 [2024-11-02 12:38:13,386 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a11587-4dad-4263-8e61-b58ed516f512/bin/utaipan-verify-DbMuA5NWw2/data/0977f3898/4fa0782f0ec84ed6a6ced73d69de0503 [2024-11-02 12:38:13,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:38:13,397 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:38:13,403 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:38:13,404 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:38:13,416 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:38:13,420 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:38:13" (1/1) ... [2024-11-02 12:38:13,422 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@661bb0a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:13, skipping insertion in model container [2024-11-02 12:38:13,426 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:38:13" (1/1) ... [2024-11-02 12:38:13,524 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:38:14,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:38:14,199 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:38:14,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:38:14,376 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:38:14,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:14 WrapperNode [2024-11-02 12:38:14,377 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:38:14,379 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:38:14,379 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:38:14,379 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:38:14,388 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:14" (1/1) ... [2024-11-02 12:38:14,415 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:14" (1/1) ... [2024-11-02 12:38:14,455 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 131 [2024-11-02 12:38:14,455 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:38:14,456 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:38:14,456 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:38:14,456 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:38:14,468 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:14" (1/1) ... [2024-11-02 12:38:14,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:14" (1/1) ... [2024-11-02 12:38:14,471 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:14" (1/1) ... [2024-11-02 12:38:14,472 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:14" (1/1) ... [2024-11-02 12:38:14,480 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:14" (1/1) ... [2024-11-02 12:38:14,483 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:14" (1/1) ... [2024-11-02 12:38:14,485 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:14" (1/1) ... [2024-11-02 12:38:14,487 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:14" (1/1) ... [2024-11-02 12:38:14,494 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:38:14,495 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:38:14,496 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:38:14,496 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:38:14,497 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:14" (1/1) ... [2024-11-02 12:38:14,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:38:14,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a11587-4dad-4263-8e61-b58ed516f512/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:38:14,562 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a11587-4dad-4263-8e61-b58ed516f512/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:38:14,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a11587-4dad-4263-8e61-b58ed516f512/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:38:14,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-02 12:38:14,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:38:14,609 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-02 12:38:14,609 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-02 12:38:14,609 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-02 12:38:14,612 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-02 12:38:14,612 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-02 12:38:14,612 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-02 12:38:14,612 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-02 12:38:14,613 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-02 12:38:14,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:38:14,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-02 12:38:14,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:38:14,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:38:14,616 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-02 12:38:14,841 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:38:14,844 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:38:15,282 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-02 12:38:15,282 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:38:15,607 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:38:15,610 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 12:38:15,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:38:15 BoogieIcfgContainer [2024-11-02 12:38:15,611 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:38:15,615 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:38:15,615 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:38:15,619 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:38:15,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:38:13" (1/3) ... [2024-11-02 12:38:15,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6521a0ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:38:15, skipping insertion in model container [2024-11-02 12:38:15,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:14" (2/3) ... [2024-11-02 12:38:15,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6521a0ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:38:15, skipping insertion in model container [2024-11-02 12:38:15,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:38:15" (3/3) ... [2024-11-02 12:38:15,625 INFO L112 eAbstractionObserver]: Analyzing ICFG mix051_pso.opt_rmo.opt_tso.opt.i [2024-11-02 12:38:15,648 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:38:15,648 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-02 12:38:15,649 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-02 12:38:15,727 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-02 12:38:15,767 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 53 transitions, 122 flow [2024-11-02 12:38:18,142 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 40245 states, 40240 states have (on average 4.48963717693837) internal successors, (180663), 40244 states have internal predecessors, (180663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:18,181 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:38:18,191 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;@1ac4f255, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:38:18,191 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-02 12:38:18,281 INFO L276 IsEmpty]: Start isEmpty. Operand has 40245 states, 40240 states have (on average 4.48963717693837) internal successors, (180663), 40244 states have internal predecessors, (180663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:18,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-02 12:38:18,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:18,297 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:38:18,298 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-02 12:38:18,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:18,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1444277765, now seen corresponding path program 1 times [2024-11-02 12:38:18,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:18,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837712195] [2024-11-02 12:38:18,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:18,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:18,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:19,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:38:19,266 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:19,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837712195] [2024-11-02 12:38:19,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837712195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:19,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:38:19,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:38:19,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200476911] [2024-11-02 12:38:19,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:19,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:38:19,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:19,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:38:19,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:38:19,406 INFO L87 Difference]: Start difference. First operand has 40245 states, 40240 states have (on average 4.48963717693837) internal successors, (180663), 40244 states have internal predecessors, (180663), 0 states have call successors, (0), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:20,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:38:20,971 INFO L93 Difference]: Finished difference Result 48134 states and 214326 transitions. [2024-11-02 12:38:20,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:38:20,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-02 12:38:20,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:38:21,644 INFO L225 Difference]: With dead ends: 48134 [2024-11-02 12:38:21,644 INFO L226 Difference]: Without dead ends: 32013 [2024-11-02 12:38:21,797 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 [2024-11-02 12:38:21,820 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 29 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:38:21,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 45 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:38:21,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32013 states. [2024-11-02 12:38:23,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32013 to 32013. [2024-11-02 12:38:24,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32013 states, 32011 states have (on average 4.328886945112617) internal successors, (138572), 32012 states have internal predecessors, (138572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:24,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32013 states to 32013 states and 138572 transitions. [2024-11-02 12:38:24,476 INFO L78 Accepts]: Start accepts. Automaton has 32013 states and 138572 transitions. Word has length 10 [2024-11-02 12:38:24,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:38:24,479 INFO L471 AbstractCegarLoop]: Abstraction has 32013 states and 138572 transitions. [2024-11-02 12:38:24,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:24,481 INFO L276 IsEmpty]: Start isEmpty. Operand 32013 states and 138572 transitions. [2024-11-02 12:38:24,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-02 12:38:24,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:24,511 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:38:24,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:38:24,512 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-02 12:38:24,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:24,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1291940714, now seen corresponding path program 1 times [2024-11-02 12:38:24,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:24,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633596238] [2024-11-02 12:38:24,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:24,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:24,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:38:24,646 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:24,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633596238] [2024-11-02 12:38:24,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633596238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:24,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:38:24,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:38:24,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308323512] [2024-11-02 12:38:24,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:24,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:38:24,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:24,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:38:24,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:38:24,652 INFO L87 Difference]: Start difference. First operand 32013 states and 138572 transitions. 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) [2024-11-02 12:38:25,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:38:25,722 INFO L93 Difference]: Finished difference Result 32013 states and 138572 transitions. [2024-11-02 12:38:25,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:38:25,726 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 [2024-11-02 12:38:25,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:38:26,016 INFO L225 Difference]: With dead ends: 32013 [2024-11-02 12:38:26,017 INFO L226 Difference]: Without dead ends: 24810 [2024-11-02 12:38:26,040 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 [2024-11-02 12:38:26,042 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 27 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:38:26,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 22 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:38:26,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24810 states. [2024-11-02 12:38:27,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24810 to 24810. [2024-11-02 12:38:27,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24810 states, 24809 states have (on average 4.299770244669273) internal successors, (106673), 24809 states have internal predecessors, (106673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:27,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24810 states to 24810 states and 106673 transitions. [2024-11-02 12:38:27,510 INFO L78 Accepts]: Start accepts. Automaton has 24810 states and 106673 transitions. Word has length 17 [2024-11-02 12:38:27,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:38:27,511 INFO L471 AbstractCegarLoop]: Abstraction has 24810 states and 106673 transitions. [2024-11-02 12:38:27,511 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) [2024-11-02 12:38:27,511 INFO L276 IsEmpty]: Start isEmpty. Operand 24810 states and 106673 transitions. [2024-11-02 12:38:27,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-02 12:38:27,528 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:27,528 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:38:27,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:38:27,529 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-02 12:38:27,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:27,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1291942032, now seen corresponding path program 1 times [2024-11-02 12:38:27,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:27,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942781903] [2024-11-02 12:38:27,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:27,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:27,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:27,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:38:27,859 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:27,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942781903] [2024-11-02 12:38:27,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942781903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:27,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:38:27,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:38:27,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110070589] [2024-11-02 12:38:27,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:27,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:38:27,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:27,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:38:27,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:38:27,865 INFO L87 Difference]: Start difference. First operand 24810 states and 106673 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 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) [2024-11-02 12:38:28,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:38:28,785 INFO L93 Difference]: Finished difference Result 39018 states and 164961 transitions. [2024-11-02 12:38:28,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:38:28,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 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 [2024-11-02 12:38:28,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:38:29,098 INFO L225 Difference]: With dead ends: 39018 [2024-11-02 12:38:29,101 INFO L226 Difference]: Without dead ends: 19810 [2024-11-02 12:38:29,159 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 [2024-11-02 12:38:29,161 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 76 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:38:29,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 52 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:38:29,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19810 states. [2024-11-02 12:38:29,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19810 to 19810. [2024-11-02 12:38:29,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19810 states, 19809 states have (on average 4.123024887677318) internal successors, (81673), 19809 states have internal predecessors, (81673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:30,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19810 states to 19810 states and 81673 transitions. [2024-11-02 12:38:30,531 INFO L78 Accepts]: Start accepts. Automaton has 19810 states and 81673 transitions. Word has length 17 [2024-11-02 12:38:30,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:38:30,532 INFO L471 AbstractCegarLoop]: Abstraction has 19810 states and 81673 transitions. [2024-11-02 12:38:30,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 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) [2024-11-02 12:38:30,533 INFO L276 IsEmpty]: Start isEmpty. Operand 19810 states and 81673 transitions. [2024-11-02 12:38:30,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-02 12:38:30,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:30,569 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:38:30,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:38:30,570 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-02 12:38:30,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:30,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1037243515, now seen corresponding path program 1 times [2024-11-02 12:38:30,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:30,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395474203] [2024-11-02 12:38:30,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:30,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:30,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:30,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:38:30,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:30,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395474203] [2024-11-02 12:38:30,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395474203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:30,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:38:30,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:38:30,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521892894] [2024-11-02 12:38:30,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:30,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:38:30,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:30,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:38:30,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:38:30,822 INFO L87 Difference]: Start difference. First operand 19810 states and 81673 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 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) [2024-11-02 12:38:31,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:38:31,326 INFO L93 Difference]: Finished difference Result 26018 states and 104961 transitions. [2024-11-02 12:38:31,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:38:31,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 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 [2024-11-02 12:38:31,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:38:31,444 INFO L225 Difference]: With dead ends: 26018 [2024-11-02 12:38:31,444 INFO L226 Difference]: Without dead ends: 11810 [2024-11-02 12:38:31,479 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 [2024-11-02 12:38:31,481 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 128 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:38:31,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 68 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:38:31,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11810 states. [2024-11-02 12:38:31,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11810 to 11810. [2024-11-02 12:38:32,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11810 states, 11809 states have (on average 3.8676433228893217) internal successors, (45673), 11809 states have internal predecessors, (45673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:32,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11810 states to 11810 states and 45673 transitions. [2024-11-02 12:38:32,231 INFO L78 Accepts]: Start accepts. Automaton has 11810 states and 45673 transitions. Word has length 22 [2024-11-02 12:38:32,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:38:32,231 INFO L471 AbstractCegarLoop]: Abstraction has 11810 states and 45673 transitions. [2024-11-02 12:38:32,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 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) [2024-11-02 12:38:32,232 INFO L276 IsEmpty]: Start isEmpty. Operand 11810 states and 45673 transitions. [2024-11-02 12:38:32,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-02 12:38:32,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:32,255 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] [2024-11-02 12:38:32,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-02 12:38:32,255 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-02 12:38:32,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:32,256 INFO L85 PathProgramCache]: Analyzing trace with hash -43953026, now seen corresponding path program 1 times [2024-11-02 12:38:32,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:32,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217861620] [2024-11-02 12:38:32,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:32,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:32,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:38:32,613 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:32,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217861620] [2024-11-02 12:38:32,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217861620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:32,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:38:32,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 12:38:32,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807813592] [2024-11-02 12:38:32,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:32,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:38:32,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:32,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:38:32,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:38:32,617 INFO L87 Difference]: Start difference. First operand 11810 states and 45673 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 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) [2024-11-02 12:38:32,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:38:32,954 INFO L93 Difference]: Finished difference Result 13218 states and 50361 transitions. [2024-11-02 12:38:32,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:38:32,955 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 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 [2024-11-02 12:38:32,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:38:33,004 INFO L225 Difference]: With dead ends: 13218 [2024-11-02 12:38:33,004 INFO L226 Difference]: Without dead ends: 7010 [2024-11-02 12:38:33,016 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 [2024-11-02 12:38:33,016 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 210 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:38:33,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 78 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:38:33,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7010 states. [2024-11-02 12:38:33,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7010 to 7010. [2024-11-02 12:38:33,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7010 states, 7009 states have (on average 3.7770009987159368) internal successors, (26473), 7009 states have internal predecessors, (26473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:33,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7010 states to 7010 states and 26473 transitions. [2024-11-02 12:38:33,274 INFO L78 Accepts]: Start accepts. Automaton has 7010 states and 26473 transitions. Word has length 27 [2024-11-02 12:38:33,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:38:33,275 INFO L471 AbstractCegarLoop]: Abstraction has 7010 states and 26473 transitions. [2024-11-02 12:38:33,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 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) [2024-11-02 12:38:33,276 INFO L276 IsEmpty]: Start isEmpty. Operand 7010 states and 26473 transitions. [2024-11-02 12:38:33,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-02 12:38:33,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:33,296 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:38:33,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-02 12:38:33,296 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-02 12:38:33,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:33,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1724509589, now seen corresponding path program 1 times [2024-11-02 12:38:33,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:33,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325356864] [2024-11-02 12:38:33,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:33,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:34,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:38:34,078 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:34,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325356864] [2024-11-02 12:38:34,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325356864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:34,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:38:34,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-02 12:38:34,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860297516] [2024-11-02 12:38:34,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:34,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 12:38:34,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:34,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 12:38:34,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:38:34,083 INFO L87 Difference]: Start difference. First operand 7010 states and 26473 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) [2024-11-02 12:38:34,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:38:34,454 INFO L93 Difference]: Finished difference Result 7138 states and 26841 transitions. [2024-11-02 12:38:34,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 12:38:34,455 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 [2024-11-02 12:38:34,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:38:34,531 INFO L225 Difference]: With dead ends: 7138 [2024-11-02 12:38:34,531 INFO L226 Difference]: Without dead ends: 5730 [2024-11-02 12:38:34,538 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 [2024-11-02 12:38:34,539 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 229 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:38:34,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 64 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:38:34,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5730 states. [2024-11-02 12:38:34,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5730 to 5730. [2024-11-02 12:38:34,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5730 states, 5729 states have (on average 3.8388898586140687) internal successors, (21993), 5729 states have internal predecessors, (21993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:34,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5730 states to 5730 states and 21993 transitions. [2024-11-02 12:38:34,806 INFO L78 Accepts]: Start accepts. Automaton has 5730 states and 21993 transitions. Word has length 32 [2024-11-02 12:38:34,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:38:34,806 INFO L471 AbstractCegarLoop]: Abstraction has 5730 states and 21993 transitions. [2024-11-02 12:38:34,807 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) [2024-11-02 12:38:34,807 INFO L276 IsEmpty]: Start isEmpty. Operand 5730 states and 21993 transitions. [2024-11-02 12:38:34,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-02 12:38:34,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:34,829 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:38:34,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-02 12:38:34,829 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-02 12:38:34,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:34,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1140646830, now seen corresponding path program 1 times [2024-11-02 12:38:34,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:34,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588480395] [2024-11-02 12:38:34,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:34,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:34,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:35,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:38:35,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:35,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588480395] [2024-11-02 12:38:35,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588480395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:35,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:38:35,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 12:38:35,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053794310] [2024-11-02 12:38:35,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:35,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:38:35,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:35,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:38:35,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:38:35,446 INFO L87 Difference]: Start difference. First operand 5730 states and 21993 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:35,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:38:35,740 INFO L93 Difference]: Finished difference Result 8842 states and 33531 transitions. [2024-11-02 12:38:35,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:38:35,741 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2024-11-02 12:38:35,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:38:35,837 INFO L225 Difference]: With dead ends: 8842 [2024-11-02 12:38:35,838 INFO L226 Difference]: Without dead ends: 7818 [2024-11-02 12:38:35,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:38:35,846 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 35 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:38:35,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 94 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:38:35,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7818 states. [2024-11-02 12:38:36,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7818 to 5346. [2024-11-02 12:38:36,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5346 states, 5345 states have (on average 3.7913938260056126) internal successors, (20265), 5345 states have internal predecessors, (20265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:36,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5346 states to 5346 states and 20265 transitions. [2024-11-02 12:38:36,140 INFO L78 Accepts]: Start accepts. Automaton has 5346 states and 20265 transitions. Word has length 37 [2024-11-02 12:38:36,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:38:36,140 INFO L471 AbstractCegarLoop]: Abstraction has 5346 states and 20265 transitions. [2024-11-02 12:38:36,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:36,141 INFO L276 IsEmpty]: Start isEmpty. Operand 5346 states and 20265 transitions. [2024-11-02 12:38:36,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-02 12:38:36,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:36,162 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:38:36,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-02 12:38:36,163 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-02 12:38:36,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:36,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1725732980, now seen corresponding path program 2 times [2024-11-02 12:38:36,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:36,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551545683] [2024-11-02 12:38:36,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:36,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:36,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:38:36,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:36,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551545683] [2024-11-02 12:38:36,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551545683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:36,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:38:36,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-02 12:38:36,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784496969] [2024-11-02 12:38:36,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:36,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:38:36,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:36,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:38:36,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:38:36,687 INFO L87 Difference]: Start difference. First operand 5346 states and 20265 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:36,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:38:36,936 INFO L93 Difference]: Finished difference Result 7754 states and 29083 transitions. [2024-11-02 12:38:36,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:38:36,937 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2024-11-02 12:38:36,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:38:36,989 INFO L225 Difference]: With dead ends: 7754 [2024-11-02 12:38:36,990 INFO L226 Difference]: Without dead ends: 4020 [2024-11-02 12:38:36,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-02 12:38:36,998 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 66 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:38:36,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 118 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:38:37,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4020 states. [2024-11-02 12:38:37,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4020 to 4020. [2024-11-02 12:38:37,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4020 states, 4019 states have (on average 3.7068922617566558) internal successors, (14898), 4019 states have internal predecessors, (14898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:37,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4020 states to 4020 states and 14898 transitions. [2024-11-02 12:38:37,145 INFO L78 Accepts]: Start accepts. Automaton has 4020 states and 14898 transitions. Word has length 37 [2024-11-02 12:38:37,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:38:37,146 INFO L471 AbstractCegarLoop]: Abstraction has 4020 states and 14898 transitions. [2024-11-02 12:38:37,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:37,146 INFO L276 IsEmpty]: Start isEmpty. Operand 4020 states and 14898 transitions. [2024-11-02 12:38:37,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-02 12:38:37,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:37,158 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:38:37,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-02 12:38:37,158 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-02 12:38:37,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:37,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1830789866, now seen corresponding path program 3 times [2024-11-02 12:38:37,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:37,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124476911] [2024-11-02 12:38:37,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:37,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:37,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:37,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:38:37,559 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:37,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124476911] [2024-11-02 12:38:37,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124476911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:37,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:38:37,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-02 12:38:37,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062837081] [2024-11-02 12:38:37,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:37,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:38:37,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:37,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:38:37,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:38:37,562 INFO L87 Difference]: Start difference. First operand 4020 states and 14898 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:37,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:38:37,819 INFO L93 Difference]: Finished difference Result 5428 states and 19906 transitions. [2024-11-02 12:38:37,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:38:37,820 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2024-11-02 12:38:37,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:38:37,867 INFO L225 Difference]: With dead ends: 5428 [2024-11-02 12:38:37,867 INFO L226 Difference]: Without dead ends: 2580 [2024-11-02 12:38:37,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-02 12:38:37,873 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 60 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:38:37,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 161 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:38:37,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2024-11-02 12:38:37,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 2580. [2024-11-02 12:38:37,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2580 states, 2579 states have (on average 3.554866227219853) internal successors, (9168), 2579 states have internal predecessors, (9168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:37,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2580 states to 2580 states and 9168 transitions. [2024-11-02 12:38:37,970 INFO L78 Accepts]: Start accepts. Automaton has 2580 states and 9168 transitions. Word has length 37 [2024-11-02 12:38:37,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:38:37,971 INFO L471 AbstractCegarLoop]: Abstraction has 2580 states and 9168 transitions. [2024-11-02 12:38:37,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:37,971 INFO L276 IsEmpty]: Start isEmpty. Operand 2580 states and 9168 transitions. [2024-11-02 12:38:37,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-02 12:38:37,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:37,977 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:38:37,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-02 12:38:37,978 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-02 12:38:37,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:37,979 INFO L85 PathProgramCache]: Analyzing trace with hash 110029974, now seen corresponding path program 4 times [2024-11-02 12:38:37,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:37,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408287415] [2024-11-02 12:38:37,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:37,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:38,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:38,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:38:38,752 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:38,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408287415] [2024-11-02 12:38:38,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408287415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:38,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:38:38,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-02 12:38:38,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314726138] [2024-11-02 12:38:38,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:38,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 12:38:38,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:38,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 12:38:38,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:38:38,755 INFO L87 Difference]: Start difference. First operand 2580 states and 9168 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:39,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:38:39,114 INFO L93 Difference]: Finished difference Result 3764 states and 13248 transitions. [2024-11-02 12:38:39,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 12:38:39,115 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2024-11-02 12:38:39,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:38:39,167 INFO L225 Difference]: With dead ends: 3764 [2024-11-02 12:38:39,167 INFO L226 Difference]: Without dead ends: 2748 [2024-11-02 12:38:39,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-02 12:38:39,171 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 58 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 12:38:39,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 281 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 12:38:39,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2748 states. [2024-11-02 12:38:39,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2748 to 2076. [2024-11-02 12:38:39,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2076 states, 2075 states have (on average 3.4814457831325303) internal successors, (7224), 2075 states have internal predecessors, (7224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:39,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2076 states to 2076 states and 7224 transitions. [2024-11-02 12:38:39,272 INFO L78 Accepts]: Start accepts. Automaton has 2076 states and 7224 transitions. Word has length 37 [2024-11-02 12:38:39,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:38:39,272 INFO L471 AbstractCegarLoop]: Abstraction has 2076 states and 7224 transitions. [2024-11-02 12:38:39,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:39,273 INFO L276 IsEmpty]: Start isEmpty. Operand 2076 states and 7224 transitions. [2024-11-02 12:38:39,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-02 12:38:39,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:39,279 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:38:39,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-02 12:38:39,279 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-02 12:38:39,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:39,280 INFO L85 PathProgramCache]: Analyzing trace with hash -827599914, now seen corresponding path program 5 times [2024-11-02 12:38:39,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:39,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434926517] [2024-11-02 12:38:39,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:39,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms