./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix013.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_2a032ee4-b888-4d50-be24-e00a23ebbc1c/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a032ee4-b888-4d50-be24-e00a23ebbc1c/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_2a032ee4-b888-4d50-be24-e00a23ebbc1c/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a032ee4-b888-4d50-be24-e00a23ebbc1c/bin/utaipan-verify-DbMuA5NWw2/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix013.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a032ee4-b888-4d50-be24-e00a23ebbc1c/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_2a032ee4-b888-4d50-be24-e00a23ebbc1c/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 39bd8ca48891731a487992488872bfabe93c299f5e64a0d2d763ed7464a4fc31 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:26:24,535 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:26:24,634 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a032ee4-b888-4d50-be24-e00a23ebbc1c/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-02 11:26:24,644 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:26:24,645 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:26:24,671 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:26:24,671 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:26:24,672 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:26:24,672 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:26:24,673 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:26:24,673 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:26:24,674 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:26:24,674 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:26:24,675 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 11:26:24,675 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:26:24,676 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:26:24,676 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 11:26:24,681 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 11:26:24,681 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:26:24,682 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 11:26:24,682 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 11:26:24,683 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 11:26:24,687 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 11:26:24,687 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 11:26:24,688 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:26:24,688 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 11:26:24,691 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 11:26:24,691 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 11:26:24,691 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:26:24,692 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-02 11:26:24,692 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-02 11:26:24,692 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-02 11:26:24,693 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:26:24,693 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 11:26:24,693 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:26:24,694 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 11:26:24,695 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 11:26:24,695 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:26:24,696 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:26:24,696 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:26:24,697 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:26:24,697 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:26:24,698 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:26:24,698 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:26:24,698 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 11:26:24,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 11:26:24,699 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:26:24,699 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:26:24,700 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:26:24,700 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_2a032ee4-b888-4d50-be24-e00a23ebbc1c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a032ee4-b888-4d50-be24-e00a23ebbc1c/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39bd8ca48891731a487992488872bfabe93c299f5e64a0d2d763ed7464a4fc31 [2024-11-02 11:26:24,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:26:25,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:26:25,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:26:25,030 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:26:25,031 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:26:25,032 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a032ee4-b888-4d50-be24-e00a23ebbc1c/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/pthread-wmm/mix013.oepc.i Unable to find full path for "g++" [2024-11-02 11:26:27,074 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:26:27,449 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:26:27,449 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a032ee4-b888-4d50-be24-e00a23ebbc1c/sv-benchmarks/c/pthread-wmm/mix013.oepc.i [2024-11-02 11:26:27,469 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a032ee4-b888-4d50-be24-e00a23ebbc1c/bin/utaipan-verify-DbMuA5NWw2/data/c34898a0c/cd8d5ed54c084196a46ffe272a1a413e/FLAG40dc69563 [2024-11-02 11:26:27,488 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a032ee4-b888-4d50-be24-e00a23ebbc1c/bin/utaipan-verify-DbMuA5NWw2/data/c34898a0c/cd8d5ed54c084196a46ffe272a1a413e [2024-11-02 11:26:27,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:26:27,492 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:26:27,493 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:26:27,494 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:26:27,500 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:26:27,501 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:26:27" (1/1) ... [2024-11-02 11:26:27,502 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6074256b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:27, skipping insertion in model container [2024-11-02 11:26:27,502 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:26:27" (1/1) ... [2024-11-02 11:26:27,557 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:26:28,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:26:28,067 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:26:28,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:26:28,186 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:26:28,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:28 WrapperNode [2024-11-02 11:26:28,186 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:26:28,187 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:26:28,188 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:26:28,188 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:26:28,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:28" (1/1) ... [2024-11-02 11:26:28,216 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:28" (1/1) ... [2024-11-02 11:26:28,258 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 134 [2024-11-02 11:26:28,259 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:26:28,260 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:26:28,260 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:26:28,260 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:26:28,268 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:28" (1/1) ... [2024-11-02 11:26:28,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:28" (1/1) ... [2024-11-02 11:26:28,272 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:28" (1/1) ... [2024-11-02 11:26:28,273 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:28" (1/1) ... [2024-11-02 11:26:28,281 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:28" (1/1) ... [2024-11-02 11:26:28,283 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:28" (1/1) ... [2024-11-02 11:26:28,287 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:28" (1/1) ... [2024-11-02 11:26:28,289 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:28" (1/1) ... [2024-11-02 11:26:28,297 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:26:28,301 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:26:28,301 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:26:28,301 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:26:28,302 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:28" (1/1) ... [2024-11-02 11:26:28,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:26:28,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a032ee4-b888-4d50-be24-e00a23ebbc1c/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:26:28,352 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a032ee4-b888-4d50-be24-e00a23ebbc1c/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:26:28,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a032ee4-b888-4d50-be24-e00a23ebbc1c/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:26:28,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-02 11:26:28,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:26:28,389 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-02 11:26:28,389 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-02 11:26:28,390 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-02 11:26:28,390 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-02 11:26:28,390 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-02 11:26:28,390 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-02 11:26:28,390 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-02 11:26:28,390 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-02 11:26:28,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 11:26:28,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-02 11:26:28,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:26:28,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:26:28,393 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 11:26:28,584 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:26:28,587 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:26:29,095 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-02 11:26:29,096 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:26:29,482 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:26:29,482 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 11:26:29,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:26:29 BoogieIcfgContainer [2024-11-02 11:26:29,483 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:26:29,487 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:26:29,487 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:26:29,493 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:26:29,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:26:27" (1/3) ... [2024-11-02 11:26:29,495 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e62a0c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:26:29, skipping insertion in model container [2024-11-02 11:26:29,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:28" (2/3) ... [2024-11-02 11:26:29,495 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e62a0c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:26:29, skipping insertion in model container [2024-11-02 11:26:29,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:26:29" (3/3) ... [2024-11-02 11:26:29,498 INFO L112 eAbstractionObserver]: Analyzing ICFG mix013.oepc.i [2024-11-02 11:26:29,515 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:26:29,516 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-02 11:26:29,516 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-02 11:26:29,591 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-02 11:26:29,632 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 55 transitions, 126 flow [2024-11-02 11:26:32,727 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 52562 states, 52557 states have (on average 4.525372452765569) internal successors, (237840), 52561 states have internal predecessors, (237840), 0 states have call successors, (0), 0 states 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 11:26:32,890 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:26:32,899 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;@1315f047, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:26:32,900 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-02 11:26:33,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 52562 states, 52557 states have (on average 4.525372452765569) internal successors, (237840), 52561 states have internal predecessors, (237840), 0 states have call successors, (0), 0 states 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 11:26:33,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-02 11:26:33,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:26:33,058 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-02 11:26:33,059 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 11:26:33,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:26:33,066 INFO L85 PathProgramCache]: Analyzing trace with hash 13042583, now seen corresponding path program 1 times [2024-11-02 11:26:33,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:26:33,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506386787] [2024-11-02 11:26:33,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:33,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:26:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:26:33,721 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 11:26:33,721 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:26:33,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506386787] [2024-11-02 11:26:33,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506386787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:26:33,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:26:33,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 11:26:33,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511967003] [2024-11-02 11:26:33,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:26:33,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 11:26:33,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:26:33,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 11:26:33,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:26:33,888 INFO L87 Difference]: Start difference. First operand has 52562 states, 52557 states have (on average 4.525372452765569) internal successors, (237840), 52561 states have internal predecessors, (237840), 0 states have call successors, (0), 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 11:26:35,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:26:35,950 INFO L93 Difference]: Finished difference Result 62866 states and 282176 transitions. [2024-11-02 11:26:35,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 11:26:35,952 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 11:26:35,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:26:36,629 INFO L225 Difference]: With dead ends: 62866 [2024-11-02 11:26:36,630 INFO L226 Difference]: Without dead ends: 41680 [2024-11-02 11:26:36,683 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 11:26:36,687 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 34 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 11:26:36,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 43 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 11:26:36,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41680 states. [2024-11-02 11:26:38,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41680 to 41680. [2024-11-02 11:26:39,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41680 states, 41678 states have (on average 4.367100148759538) internal successors, (182012), 41679 states have internal predecessors, (182012), 0 states have call successors, (0), 0 states 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 11:26:39,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41680 states to 41680 states and 182012 transitions. [2024-11-02 11:26:39,841 INFO L78 Accepts]: Start accepts. Automaton has 41680 states and 182012 transitions. Word has length 4 [2024-11-02 11:26:39,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:26:39,842 INFO L471 AbstractCegarLoop]: Abstraction has 41680 states and 182012 transitions. [2024-11-02 11:26:39,843 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 11:26:39,843 INFO L276 IsEmpty]: Start isEmpty. Operand 41680 states and 182012 transitions. [2024-11-02 11:26:39,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-02 11:26:39,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:26:39,878 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 11:26:39,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 11:26:39,879 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 11:26:39,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:26:39,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1682277686, now seen corresponding path program 1 times [2024-11-02 11:26:39,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:26:39,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290254865] [2024-11-02 11:26:39,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:39,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:26:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:26:39,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:26:39,996 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:26:39,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290254865] [2024-11-02 11:26:39,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290254865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:26:39,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:26:39,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 11:26:39,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823314733] [2024-11-02 11:26:39,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:26:40,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 11:26:40,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:26:40,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 11:26:40,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:26:40,007 INFO L87 Difference]: Start difference. First operand 41680 states and 182012 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 11:26:41,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:26:41,096 INFO L93 Difference]: Finished difference Result 41680 states and 182012 transitions. [2024-11-02 11:26:41,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 11:26:41,097 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 11:26:41,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:26:41,698 INFO L225 Difference]: With dead ends: 41680 [2024-11-02 11:26:41,698 INFO L226 Difference]: Without dead ends: 32272 [2024-11-02 11:26:41,743 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 11:26:41,748 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 29 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 21 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 11:26:41,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 21 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 11:26:41,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32272 states. [2024-11-02 11:26:43,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32272 to 32272. [2024-11-02 11:26:43,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32272 states, 32271 states have (on average 4.338632208484397) internal successors, (140012), 32271 states have internal predecessors, (140012), 0 states have call successors, (0), 0 states 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 11:26:43,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32272 states to 32272 states and 140012 transitions. [2024-11-02 11:26:43,907 INFO L78 Accepts]: Start accepts. Automaton has 32272 states and 140012 transitions. Word has length 17 [2024-11-02 11:26:43,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:26:43,908 INFO L471 AbstractCegarLoop]: Abstraction has 32272 states and 140012 transitions. [2024-11-02 11:26:43,909 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 11:26:43,909 INFO L276 IsEmpty]: Start isEmpty. Operand 32272 states and 140012 transitions. [2024-11-02 11:26:43,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-02 11:26:43,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:26:43,930 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 11:26:43,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 11:26:43,930 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 11:26:43,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:26:43,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1682279036, now seen corresponding path program 1 times [2024-11-02 11:26:43,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:26:43,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226677551] [2024-11-02 11:26:43,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:43,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:26:44,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:26:44,304 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 11:26:44,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:26:44,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226677551] [2024-11-02 11:26:44,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226677551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:26:44,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:26:44,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 11:26:44,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183820815] [2024-11-02 11:26:44,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:26:44,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 11:26:44,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:26:44,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 11:26:44,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 11:26:44,313 INFO L87 Difference]: Start difference. First operand 32272 states and 140012 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 11:26:45,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:26:45,605 INFO L93 Difference]: Finished difference Result 50160 states and 213776 transitions. [2024-11-02 11:26:45,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 11:26:45,605 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 11:26:45,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:26:45,840 INFO L225 Difference]: With dead ends: 50160 [2024-11-02 11:26:45,840 INFO L226 Difference]: Without dead ends: 25072 [2024-11-02 11:26:45,912 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 11:26:45,913 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 82 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-02 11:26:45,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 49 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-02 11:26:45,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25072 states. [2024-11-02 11:26:47,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25072 to 25072. [2024-11-02 11:26:47,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25072 states, 25071 states have (on average 4.148697698536157) internal successors, (104012), 25071 states have internal predecessors, (104012), 0 states have call successors, (0), 0 states 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 11:26:47,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25072 states to 25072 states and 104012 transitions. [2024-11-02 11:26:47,214 INFO L78 Accepts]: Start accepts. Automaton has 25072 states and 104012 transitions. Word has length 17 [2024-11-02 11:26:47,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:26:47,215 INFO L471 AbstractCegarLoop]: Abstraction has 25072 states and 104012 transitions. [2024-11-02 11:26:47,215 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 11:26:47,215 INFO L276 IsEmpty]: Start isEmpty. Operand 25072 states and 104012 transitions. [2024-11-02 11:26:47,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-02 11:26:47,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:26:47,240 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 11:26:47,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 11:26:47,241 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 11:26:47,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:26:47,242 INFO L85 PathProgramCache]: Analyzing trace with hash 394536933, now seen corresponding path program 1 times [2024-11-02 11:26:47,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:26:47,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809141204] [2024-11-02 11:26:47,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:47,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:26:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:26:47,522 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 11:26:47,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:26:47,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809141204] [2024-11-02 11:26:47,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809141204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:26:47,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:26:47,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 11:26:47,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220468534] [2024-11-02 11:26:47,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:26:47,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 11:26:47,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:26:47,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 11:26:47,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-02 11:26:47,526 INFO L87 Difference]: Start difference. First operand 25072 states and 104012 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 11:26:48,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:26:48,524 INFO L93 Difference]: Finished difference Result 32400 states and 131576 transitions. [2024-11-02 11:26:48,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 11:26:48,528 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 11:26:48,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:26:48,716 INFO L225 Difference]: With dead ends: 32400 [2024-11-02 11:26:48,716 INFO L226 Difference]: Without dead ends: 14512 [2024-11-02 11:26:48,766 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 11:26:48,770 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 152 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 11:26:48,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 61 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 11:26:48,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14512 states. [2024-11-02 11:26:49,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14512 to 14512. [2024-11-02 11:26:49,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14512 states, 14511 states have (on average 3.893046654262284) internal successors, (56492), 14511 states have internal predecessors, (56492), 0 states have call successors, (0), 0 states 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 11:26:49,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14512 states to 14512 states and 56492 transitions. [2024-11-02 11:26:49,398 INFO L78 Accepts]: Start accepts. Automaton has 14512 states and 56492 transitions. Word has length 22 [2024-11-02 11:26:49,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:26:49,399 INFO L471 AbstractCegarLoop]: Abstraction has 14512 states and 56492 transitions. [2024-11-02 11:26:49,399 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 11:26:49,400 INFO L276 IsEmpty]: Start isEmpty. Operand 14512 states and 56492 transitions. [2024-11-02 11:26:49,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-02 11:26:49,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:26:49,435 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 11:26:49,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-02 11:26:49,436 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 11:26:49,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:26:49,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1598497248, now seen corresponding path program 1 times [2024-11-02 11:26:49,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:26:49,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265349336] [2024-11-02 11:26:49,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:49,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:26:49,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:26:49,960 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 11:26:49,961 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:26:49,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265349336] [2024-11-02 11:26:49,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265349336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:26:49,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:26:49,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 11:26:49,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952433173] [2024-11-02 11:26:49,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:26:49,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 11:26:49,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:26:49,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 11:26:49,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-02 11:26:49,967 INFO L87 Difference]: Start difference. First operand 14512 states and 56492 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 11:26:50,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:26:50,953 INFO L93 Difference]: Finished difference Result 16048 states and 61612 transitions. [2024-11-02 11:26:50,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 11:26:50,954 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 11:26:50,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:26:51,028 INFO L225 Difference]: With dead ends: 16048 [2024-11-02 11:26:51,029 INFO L226 Difference]: Without dead ends: 8720 [2024-11-02 11:26:51,042 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 11:26:51,043 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 228 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 11:26:51,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 73 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 11:26:51,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8720 states. [2024-11-02 11:26:51,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8720 to 8720. [2024-11-02 11:26:51,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8720 states, 8719 states have (on average 3.8219979355430667) internal successors, (33324), 8719 states have internal predecessors, (33324), 0 states have call successors, (0), 0 states 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 11:26:51,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8720 states to 8720 states and 33324 transitions. [2024-11-02 11:26:51,393 INFO L78 Accepts]: Start accepts. Automaton has 8720 states and 33324 transitions. Word has length 27 [2024-11-02 11:26:51,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:26:51,394 INFO L471 AbstractCegarLoop]: Abstraction has 8720 states and 33324 transitions. [2024-11-02 11:26:51,394 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 11:26:51,394 INFO L276 IsEmpty]: Start isEmpty. Operand 8720 states and 33324 transitions. [2024-11-02 11:26:51,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-02 11:26:51,421 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:26:51,421 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] [2024-11-02 11:26:51,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-02 11:26:51,422 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-02 11:26:51,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:26:51,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1073804413, now seen corresponding path program 1 times [2024-11-02 11:26:51,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:26:51,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423974154] [2024-11-02 11:26:51,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:51,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:26:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:26:52,103 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 11:26:52,104 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:26:52,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423974154] [2024-11-02 11:26:52,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423974154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:26:52,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:26:52,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-02 11:26:52,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527728089] [2024-11-02 11:26:52,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:26:52,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 11:26:52,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:26:52,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 11:26:52,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-02 11:26:52,111 INFO L87 Difference]: Start difference. First operand 8720 states and 33324 transitions. Second operand has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states 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 11:26:52,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:26:52,601 INFO L93 Difference]: Finished difference Result 8848 states and 33692 transitions. [2024-11-02 11:26:52,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 11:26:52,602 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2024-11-02 11:26:52,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:26:52,722 INFO L225 Difference]: With dead ends: 8848 [2024-11-02 11:26:52,722 INFO L226 Difference]: Without dead ends: 7312 [2024-11-02 11:26:52,730 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 11:26:52,731 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 254 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 11:26:52,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 57 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 11:26:52,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7312 states. [2024-11-02 11:26:52,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7312 to 7312. [2024-11-02 11:26:53,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7312 states, 7311 states have (on average 3.8840103952947613) internal successors, (28396), 7311 states have internal predecessors, (28396), 0 states have call successors, (0), 0 states 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 11:26:53,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7312 states to 7312 states and 28396 transitions. [2024-11-02 11:26:53,131 INFO L78 Accepts]: Start accepts. Automaton has 7312 states and 28396 transitions. Word has length 33 [2024-11-02 11:26:53,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:26:53,132 INFO L471 AbstractCegarLoop]: Abstraction has 7312 states and 28396 transitions. [2024-11-02 11:26:53,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states 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 11:26:53,134 INFO L276 IsEmpty]: Start isEmpty. Operand 7312 states and 28396 transitions. [2024-11-02 11:26:53,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-02 11:26:53,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:26:53,167 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:26:53,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-02 11:26:53,169 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-02 11:26:53,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:26:53,170 INFO L85 PathProgramCache]: Analyzing trace with hash -177879046, now seen corresponding path program 1 times [2024-11-02 11:26:53,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:26:53,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19419272] [2024-11-02 11:26:53,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:53,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:26:53,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat