./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix053_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c13e9265-a7db-445f-b3a6-5bdeb71e0abd/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c13e9265-a7db-445f-b3a6-5bdeb71e0abd/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_c13e9265-a7db-445f-b3a6-5bdeb71e0abd/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c13e9265-a7db-445f-b3a6-5bdeb71e0abd/bin/utaipan-verify-DbMuA5NWw2/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix053_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c13e9265-a7db-445f-b3a6-5bdeb71e0abd/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_c13e9265-a7db-445f-b3a6-5bdeb71e0abd/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 03b62196b25662d8efd4f9890b2a9ba3be7263fa8e2874a92734800e01910b00 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:38:19,544 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:38:19,679 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c13e9265-a7db-445f-b3a6-5bdeb71e0abd/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-02 12:38:19,692 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:38:19,693 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:38:19,738 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:38:19,742 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:38:19,742 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:38:19,743 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:38:19,744 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:38:19,745 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:38:19,747 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:38:19,747 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:38:19,748 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:38:19,751 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:38:19,752 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:38:19,753 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:38:19,753 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:38:19,753 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:38:19,754 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:38:19,754 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:38:19,755 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:38:19,756 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 12:38:19,756 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 12:38:19,757 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:38:19,757 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:38:19,757 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:38:19,758 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:38:19,758 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:38:19,758 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-02 12:38:19,759 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-02 12:38:19,763 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-02 12:38:19,767 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:38:19,767 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:38:19,768 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:38:19,768 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:38:19,768 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:38:19,769 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:38:19,769 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:38:19,769 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:38:19,769 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:38:19,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:38:19,771 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:38:19,772 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:38:19,772 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:38:19,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:38:19,774 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:38:19,774 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:38:19,774 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:38:19,775 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_c13e9265-a7db-445f-b3a6-5bdeb71e0abd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c13e9265-a7db-445f-b3a6-5bdeb71e0abd/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03b62196b25662d8efd4f9890b2a9ba3be7263fa8e2874a92734800e01910b00 [2024-11-02 12:38:20,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:38:20,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:38:20,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:38:20,204 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:38:20,205 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:38:20,207 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c13e9265-a7db-445f-b3a6-5bdeb71e0abd/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/pthread-wmm/mix053_power.oepc_pso.oepc_rmo.oepc.i Unable to find full path for "g++" [2024-11-02 12:38:22,491 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:38:22,787 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:38:22,788 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c13e9265-a7db-445f-b3a6-5bdeb71e0abd/sv-benchmarks/c/pthread-wmm/mix053_power.oepc_pso.oepc_rmo.oepc.i [2024-11-02 12:38:22,814 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c13e9265-a7db-445f-b3a6-5bdeb71e0abd/bin/utaipan-verify-DbMuA5NWw2/data/ae7ba12ae/8f67d5f7e5b4403a8c6ea838a66963d9/FLAG52e1139dd [2024-11-02 12:38:22,837 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c13e9265-a7db-445f-b3a6-5bdeb71e0abd/bin/utaipan-verify-DbMuA5NWw2/data/ae7ba12ae/8f67d5f7e5b4403a8c6ea838a66963d9 [2024-11-02 12:38:22,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:38:22,845 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:38:22,847 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:38:22,847 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:38:22,852 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:38:22,853 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:38:22" (1/1) ... [2024-11-02 12:38:22,854 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48797d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:22, skipping insertion in model container [2024-11-02 12:38:22,855 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:38:22" (1/1) ... [2024-11-02 12:38:22,911 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:38:23,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:38:23,520 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:38:23,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:38:23,688 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:38:23,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:23 WrapperNode [2024-11-02 12:38:23,690 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:38:23,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:38:23,691 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:38:23,691 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:38:23,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:23" (1/1) ... [2024-11-02 12:38:23,726 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:23" (1/1) ... [2024-11-02 12:38:23,767 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 130 [2024-11-02 12:38:23,767 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:38:23,768 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:38:23,768 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:38:23,769 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:38:23,780 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:23" (1/1) ... [2024-11-02 12:38:23,781 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:23" (1/1) ... [2024-11-02 12:38:23,785 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:23" (1/1) ... [2024-11-02 12:38:23,785 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:23" (1/1) ... [2024-11-02 12:38:23,800 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:23" (1/1) ... [2024-11-02 12:38:23,806 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:23" (1/1) ... [2024-11-02 12:38:23,812 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:23" (1/1) ... [2024-11-02 12:38:23,818 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:23" (1/1) ... [2024-11-02 12:38:23,826 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:38:23,830 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:38:23,830 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:38:23,830 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:38:23,831 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:23" (1/1) ... [2024-11-02 12:38:23,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:38:23,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c13e9265-a7db-445f-b3a6-5bdeb71e0abd/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:38:23,881 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c13e9265-a7db-445f-b3a6-5bdeb71e0abd/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:38:23,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c13e9265-a7db-445f-b3a6-5bdeb71e0abd/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:38:23,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-02 12:38:23,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:38:23,912 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-02 12:38:23,912 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-02 12:38:23,913 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-02 12:38:23,913 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-02 12:38:23,913 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-02 12:38:23,913 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-02 12:38:23,913 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-02 12:38:23,913 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-02 12:38:23,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:38:23,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-02 12:38:23,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:38:23,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:38:23,916 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 12:38:24,069 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:38:24,071 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:38:24,501 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-02 12:38:24,501 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:38:24,791 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:38:24,792 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 12:38:24,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:38:24 BoogieIcfgContainer [2024-11-02 12:38:24,792 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:38:24,794 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:38:24,795 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:38:24,798 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:38:24,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:38:22" (1/3) ... [2024-11-02 12:38:24,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@304b3c22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:38:24, skipping insertion in model container [2024-11-02 12:38:24,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:23" (2/3) ... [2024-11-02 12:38:24,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@304b3c22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:38:24, skipping insertion in model container [2024-11-02 12:38:24,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:38:24" (3/3) ... [2024-11-02 12:38:24,802 INFO L112 eAbstractionObserver]: Analyzing ICFG mix053_power.oepc_pso.oepc_rmo.oepc.i [2024-11-02 12:38:24,822 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:38:24,822 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-02 12:38:24,823 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-02 12:38:24,899 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-02 12:38:24,938 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 53 transitions, 122 flow [2024-11-02 12:38:27,546 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 40359 states, 40354 states have (on average 4.487064479357684) internal successors, (181071), 40358 states have internal predecessors, (181071), 0 states have call successors, (0), 0 states 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 12:38:27,707 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:38:27,714 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;@25b18a03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:38:27,714 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-02 12:38:27,793 INFO L276 IsEmpty]: Start isEmpty. Operand has 40359 states, 40354 states have (on average 4.487064479357684) internal successors, (181071), 40358 states have internal predecessors, (181071), 0 states have call successors, (0), 0 states 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 12:38:27,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-02 12:38:27,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:27,800 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-02 12:38:27,801 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-02 12:38:27,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:27,808 INFO L85 PathProgramCache]: Analyzing trace with hash 12528064, now seen corresponding path program 1 times [2024-11-02 12:38:27,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:27,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797151146] [2024-11-02 12:38:27,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:27,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:27,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:28,411 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 12:38:28,412 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:28,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797151146] [2024-11-02 12:38:28,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797151146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:28,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:38:28,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:38:28,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088058886] [2024-11-02 12:38:28,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:28,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:38:28,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:28,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:38:28,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:38:28,528 INFO L87 Difference]: Start difference. First operand has 40359 states, 40354 states have (on average 4.487064479357684) internal successors, (181071), 40358 states have internal predecessors, (181071), 0 states have call successors, (0), 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 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:30,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:38:30,413 INFO L93 Difference]: Finished difference Result 48248 states and 214734 transitions. [2024-11-02 12:38:30,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:38:30,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-02 12:38:30,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:38:31,208 INFO L225 Difference]: With dead ends: 48248 [2024-11-02 12:38:31,209 INFO L226 Difference]: Without dead ends: 32013 [2024-11-02 12:38:31,255 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 12:38:31,260 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 32 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 12:38:31,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 39 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 12:38:31,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32013 states. [2024-11-02 12:38:33,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32013 to 32013. [2024-11-02 12:38:33,212 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 12:38:33,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32013 states to 32013 states and 138572 transitions. [2024-11-02 12:38:33,790 INFO L78 Accepts]: Start accepts. Automaton has 32013 states and 138572 transitions. Word has length 4 [2024-11-02 12:38:33,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:38:33,791 INFO L471 AbstractCegarLoop]: Abstraction has 32013 states and 138572 transitions. [2024-11-02 12:38:33,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:33,791 INFO L276 IsEmpty]: Start isEmpty. Operand 32013 states and 138572 transitions. [2024-11-02 12:38:33,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-02 12:38:33,818 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:33,818 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 12:38:33,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:38:33,819 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-02 12:38:33,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:33,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1557375222, now seen corresponding path program 1 times [2024-11-02 12:38:33,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:33,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687863932] [2024-11-02 12:38:33,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:33,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:33,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:33,925 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 12:38:33,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:33,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687863932] [2024-11-02 12:38:33,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687863932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:33,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:38:33,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:38:33,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035103470] [2024-11-02 12:38:33,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:33,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:38:33,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:33,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:38:33,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:38:33,930 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 12:38:34,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:38:34,711 INFO L93 Difference]: Finished difference Result 32013 states and 138572 transitions. [2024-11-02 12:38:34,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:38:34,712 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 12:38:34,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:38:35,029 INFO L225 Difference]: With dead ends: 32013 [2024-11-02 12:38:35,030 INFO L226 Difference]: Without dead ends: 24810 [2024-11-02 12:38:35,051 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 12:38:35,053 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 27 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:38:35,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 19 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:38:35,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24810 states. [2024-11-02 12:38:36,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24810 to 24810. [2024-11-02 12:38:36,292 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 12:38:36,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24810 states to 24810 states and 106673 transitions. [2024-11-02 12:38:36,897 INFO L78 Accepts]: Start accepts. Automaton has 24810 states and 106673 transitions. Word has length 17 [2024-11-02 12:38:36,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:38:36,899 INFO L471 AbstractCegarLoop]: Abstraction has 24810 states and 106673 transitions. [2024-11-02 12:38:36,900 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 12:38:36,900 INFO L276 IsEmpty]: Start isEmpty. Operand 24810 states and 106673 transitions. [2024-11-02 12:38:36,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-02 12:38:36,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:36,918 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 12:38:36,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:38:36,919 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-02 12:38:36,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:36,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1557373973, now seen corresponding path program 1 times [2024-11-02 12:38:36,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:36,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149851544] [2024-11-02 12:38:36,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:36,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:36,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:37,346 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 12:38:37,346 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:37,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149851544] [2024-11-02 12:38:37,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149851544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:37,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:38:37,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:38:37,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237623841] [2024-11-02 12:38:37,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:37,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:38:37,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:37,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:38:37,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:38:37,354 INFO L87 Difference]: Start difference. First operand 24810 states and 106673 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:38,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:38:38,475 INFO L93 Difference]: Finished difference Result 57747 states and 245823 transitions. [2024-11-02 12:38:38,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 12:38:38,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-02 12:38:38,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:38:39,457 INFO L225 Difference]: With dead ends: 57747 [2024-11-02 12:38:39,458 INFO L226 Difference]: Without dead ends: 39694 [2024-11-02 12:38:39,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 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 12:38:39,493 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 106 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-02 12:38:39,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 153 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-02 12:38:39,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39694 states. [2024-11-02 12:38:41,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39694 to 30974. [2024-11-02 12:38:41,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30974 states, 30973 states have (on average 4.22739159913473) internal successors, (130935), 30973 states have internal predecessors, (130935), 0 states have call successors, (0), 0 states 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 12:38:41,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30974 states to 30974 states and 130935 transitions. [2024-11-02 12:38:41,432 INFO L78 Accepts]: Start accepts. Automaton has 30974 states and 130935 transitions. Word has length 17 [2024-11-02 12:38:41,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:38:41,432 INFO L471 AbstractCegarLoop]: Abstraction has 30974 states and 130935 transitions. [2024-11-02 12:38:41,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:41,433 INFO L276 IsEmpty]: Start isEmpty. Operand 30974 states and 130935 transitions. [2024-11-02 12:38:41,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-02 12:38:41,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:41,462 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:38:41,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:38:41,463 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-02 12:38:41,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:41,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1334647690, now seen corresponding path program 1 times [2024-11-02 12:38:41,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:41,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489008991] [2024-11-02 12:38:41,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:41,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:41,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:41,763 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 12:38:41,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:41,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489008991] [2024-11-02 12:38:41,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489008991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:41,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:38:41,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 12:38:41,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928576460] [2024-11-02 12:38:41,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:41,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:38:41,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:41,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:38:41,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:38:41,766 INFO L87 Difference]: Start difference. First operand 30974 states and 130935 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:43,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:38:43,296 INFO L93 Difference]: Finished difference Result 49867 states and 209387 transitions. [2024-11-02 12:38:43,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-02 12:38:43,297 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-02 12:38:43,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:38:43,587 INFO L225 Difference]: With dead ends: 49867 [2024-11-02 12:38:43,587 INFO L226 Difference]: Without dead ends: 36684 [2024-11-02 12:38:43,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-02 12:38:43,631 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 148 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-02 12:38:43,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 204 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-02 12:38:43,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36684 states. [2024-11-02 12:38:45,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36684 to 29684. [2024-11-02 12:38:45,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29684 states, 29683 states have (on average 4.207964154566587) internal successors, (124905), 29683 states have internal predecessors, (124905), 0 states have call successors, (0), 0 states 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 12:38:45,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29684 states to 29684 states and 124905 transitions. [2024-11-02 12:38:45,541 INFO L78 Accepts]: Start accepts. Automaton has 29684 states and 124905 transitions. Word has length 19 [2024-11-02 12:38:45,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:38:45,541 INFO L471 AbstractCegarLoop]: Abstraction has 29684 states and 124905 transitions. [2024-11-02 12:38:45,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:45,542 INFO L276 IsEmpty]: Start isEmpty. Operand 29684 states and 124905 transitions. [2024-11-02 12:38:45,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-02 12:38:45,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:45,577 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:38:45,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-02 12:38:45,578 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-02 12:38:45,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:45,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1974397878, now seen corresponding path program 1 times [2024-11-02 12:38:45,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:45,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276791283] [2024-11-02 12:38:45,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:45,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:45,874 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 12:38:45,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:45,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276791283] [2024-11-02 12:38:45,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276791283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:45,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:38:45,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:38:45,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192392003] [2024-11-02 12:38:45,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:45,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:38:45,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:45,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:38:45,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:38:45,878 INFO L87 Difference]: Start difference. First operand 29684 states and 124905 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:47,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:38:47,259 INFO L93 Difference]: Finished difference Result 37729 states and 158041 transitions. [2024-11-02 12:38:47,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 12:38:47,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-02 12:38:47,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:38:47,510 INFO L225 Difference]: With dead ends: 37729 [2024-11-02 12:38:47,510 INFO L226 Difference]: Without dead ends: 28034 [2024-11-02 12:38:47,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 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 12:38:47,542 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 99 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 12:38:47,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 132 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 12:38:47,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28034 states.