./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread/triangular-longest-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/triangular-longest-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje --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 81809963fcaff21fd6241cde97e522447f695a8b323a0a16c5a31b7f82b0f683 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:08:29,199 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:08:29,296 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-09 07:08:29,303 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:08:29,303 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:08:29,338 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:08:29,338 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:08:29,339 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:08:29,341 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:08:29,342 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:08:29,343 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:08:29,343 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:08:29,343 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:08:29,344 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:08:29,344 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:08:29,344 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:08:29,344 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:08:29,345 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:08:29,345 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:08:29,348 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:08:29,350 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:08:29,351 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:08:29,352 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 07:08:29,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 07:08:29,352 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:08:29,352 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:08:29,353 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:08:29,353 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:08:29,353 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:08:29,353 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 07:08:29,354 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 07:08:29,354 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 07:08:29,354 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:08:29,354 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 07:08:29,356 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:08:29,356 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:08:29,356 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:08:29,356 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:08:29,357 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:08:29,357 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:08:29,357 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:08:29,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:08:29,358 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:08:29,358 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:08:29,358 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:08:29,359 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:08:29,359 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:08:29,359 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:08:29,359 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:08:29,359 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_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81809963fcaff21fd6241cde97e522447f695a8b323a0a16c5a31b7f82b0f683 [2024-11-09 07:08:29,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:08:29,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:08:29,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:08:29,711 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:08:29,712 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:08:29,713 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/pthread/triangular-longest-1.i Unable to find full path for "g++" [2024-11-09 07:08:31,673 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:08:31,995 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:08:31,996 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/sv-benchmarks/c/pthread/triangular-longest-1.i [2024-11-09 07:08:32,017 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/data/4b9ba7a49/a7951ea4f79049c9bda2b60175854f5b/FLAG847954b1f [2024-11-09 07:08:32,237 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/data/4b9ba7a49/a7951ea4f79049c9bda2b60175854f5b [2024-11-09 07:08:32,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:08:32,241 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:08:32,242 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:08:32,243 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:08:32,250 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:08:32,251 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:08:32" (1/1) ... [2024-11-09 07:08:32,252 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26625104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:32, skipping insertion in model container [2024-11-09 07:08:32,255 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:08:32" (1/1) ... [2024-11-09 07:08:32,298 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:08:32,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:08:32,738 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:08:32,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:08:32,824 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:08:32,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:32 WrapperNode [2024-11-09 07:08:32,825 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:08:32,826 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:08:32,827 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:08:32,827 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:08:32,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:32" (1/1) ... [2024-11-09 07:08:32,854 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:32" (1/1) ... [2024-11-09 07:08:32,879 INFO L138 Inliner]: procedures = 168, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2024-11-09 07:08:32,879 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:08:32,880 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:08:32,880 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:08:32,880 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:08:32,892 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:32" (1/1) ... [2024-11-09 07:08:32,892 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:32" (1/1) ... [2024-11-09 07:08:32,895 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:32" (1/1) ... [2024-11-09 07:08:32,897 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:32" (1/1) ... [2024-11-09 07:08:32,905 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:32" (1/1) ... [2024-11-09 07:08:32,908 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:32" (1/1) ... [2024-11-09 07:08:32,909 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:32" (1/1) ... [2024-11-09 07:08:32,910 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:32" (1/1) ... [2024-11-09 07:08:32,913 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:08:32,914 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:08:32,914 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:08:32,914 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:08:32,915 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:32" (1/1) ... [2024-11-09 07:08:32,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:08:32,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:08:32,955 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:08:32,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:08:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-11-09 07:08:32,991 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-11-09 07:08:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-11-09 07:08:32,991 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-11-09 07:08:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 07:08:32,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:08:32,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:08:32,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 07:08:32,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:08:32,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:08:32,997 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 07:08:33,160 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:08:33,162 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:08:33,352 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 07:08:33,353 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:08:33,457 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:08:33,458 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 07:08:33,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:08:33 BoogieIcfgContainer [2024-11-09 07:08:33,459 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:08:33,461 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:08:33,461 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:08:33,466 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:08:33,467 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:08:32" (1/3) ... [2024-11-09 07:08:33,467 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d630b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:08:33, skipping insertion in model container [2024-11-09 07:08:33,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:32" (2/3) ... [2024-11-09 07:08:33,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d630b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:08:33, skipping insertion in model container [2024-11-09 07:08:33,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:08:33" (3/3) ... [2024-11-09 07:08:33,470 INFO L112 eAbstractionObserver]: Analyzing ICFG triangular-longest-1.i [2024-11-09 07:08:33,489 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:08:33,490 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 07:08:33,490 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 07:08:33,554 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:08:33,585 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 35 transitions, 78 flow [2024-11-09 07:08:33,682 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 555 states, 553 states have (on average 3.3490054249547923) internal successors, (1852), 554 states have internal predecessors, (1852), 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) [2024-11-09 07:08:33,713 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:08:33,720 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;@3452911f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:08:33,721 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-09 07:08:33,725 INFO L276 IsEmpty]: Start isEmpty. Operand has 555 states, 553 states have (on average 3.3490054249547923) internal successors, (1852), 554 states have internal predecessors, (1852), 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) [2024-11-09 07:08:33,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 07:08:33,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:08:33,738 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:08:33,738 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:08:33,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:08:33,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1929992987, now seen corresponding path program 1 times [2024-11-09 07:08:33,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:08:33,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029775407] [2024-11-09 07:08:33,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:08:33,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:08:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:34,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:08:34,046 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:08:34,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029775407] [2024-11-09 07:08:34,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029775407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:08:34,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:08:34,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 07:08:34,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222609416] [2024-11-09 07:08:34,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:08:34,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:08:34,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:08:34,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:08:34,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:08:34,081 INFO L87 Difference]: Start difference. First operand has 555 states, 553 states have (on average 3.3490054249547923) internal successors, (1852), 554 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:08:34,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:08:34,165 INFO L93 Difference]: Finished difference Result 653 states and 2174 transitions. [2024-11-09 07:08:34,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:08:34,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-09 07:08:34,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:08:34,185 INFO L225 Difference]: With dead ends: 653 [2024-11-09 07:08:34,185 INFO L226 Difference]: Without dead ends: 359 [2024-11-09 07:08:34,190 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 [2024-11-09 07:08:34,194 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 19 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:08:34,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 16 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:08:34,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-09 07:08:34,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2024-11-09 07:08:34,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 358 states have (on average 3.100558659217877) internal successors, (1110), 358 states have internal predecessors, (1110), 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) [2024-11-09 07:08:34,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 1110 transitions. [2024-11-09 07:08:34,276 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 1110 transitions. Word has length 10 [2024-11-09 07:08:34,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:08:34,277 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 1110 transitions. [2024-11-09 07:08:34,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:08:34,277 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 1110 transitions. [2024-11-09 07:08:34,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 07:08:34,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:08:34,280 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:08:34,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:08:34,281 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:08:34,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:08:34,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1929994238, now seen corresponding path program 1 times [2024-11-09 07:08:34,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:08:34,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884219999] [2024-11-09 07:08:34,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:08:34,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:08:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:34,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:08:34,651 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:08:34,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884219999] [2024-11-09 07:08:34,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884219999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:08:34,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:08:34,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:08:34,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203637532] [2024-11-09 07:08:34,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:08:34,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:08:34,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:08:34,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:08:34,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:08:34,657 INFO L87 Difference]: Start difference. First operand 359 states and 1110 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:08:34,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:08:34,837 INFO L93 Difference]: Finished difference Result 667 states and 2092 transitions. [2024-11-09 07:08:34,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:08:34,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-09 07:08:34,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:08:34,847 INFO L225 Difference]: With dead ends: 667 [2024-11-09 07:08:34,847 INFO L226 Difference]: Without dead ends: 394 [2024-11-09 07:08:34,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:08:34,852 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 60 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:08:34,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 80 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:08:34,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-09 07:08:34,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2024-11-09 07:08:34,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 393 states have (on average 3.05089058524173) internal successors, (1199), 393 states have internal predecessors, (1199), 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) [2024-11-09 07:08:34,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1199 transitions. [2024-11-09 07:08:34,907 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1199 transitions. Word has length 10 [2024-11-09 07:08:34,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:08:34,908 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 1199 transitions. [2024-11-09 07:08:34,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:08:34,909 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1199 transitions. [2024-11-09 07:08:34,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 07:08:34,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:08:34,914 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:08:34,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:08:34,915 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:08:34,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:08:34,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1802271505, now seen corresponding path program 1 times [2024-11-09 07:08:34,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:08:34,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420583426] [2024-11-09 07:08:34,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:08:34,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:08:34,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:35,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:08:35,138 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:08:35,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420583426] [2024-11-09 07:08:35,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420583426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:08:35,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:08:35,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:08:35,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129642042] [2024-11-09 07:08:35,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:08:35,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:08:35,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:08:35,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:08:35,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:08:35,143 INFO L87 Difference]: Start difference. First operand 394 states and 1199 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 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) [2024-11-09 07:08:35,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:08:35,386 INFO L93 Difference]: Finished difference Result 1268 states and 3933 transitions. [2024-11-09 07:08:35,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 07:08:35,389 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 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 14 [2024-11-09 07:08:35,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:08:35,398 INFO L225 Difference]: With dead ends: 1268 [2024-11-09 07:08:35,398 INFO L226 Difference]: Without dead ends: 994 [2024-11-09 07:08:35,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:08:35,403 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 110 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:08:35,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 148 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:08:35,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2024-11-09 07:08:35,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 526. [2024-11-09 07:08:35,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 525 states have (on average 3.059047619047619) internal successors, (1606), 525 states have internal predecessors, (1606), 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) [2024-11-09 07:08:35,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1606 transitions. [2024-11-09 07:08:35,458 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1606 transitions. Word has length 14 [2024-11-09 07:08:35,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:08:35,458 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 1606 transitions. [2024-11-09 07:08:35,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 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) [2024-11-09 07:08:35,458 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1606 transitions. [2024-11-09 07:08:35,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 07:08:35,460 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:08:35,460 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:08:35,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:08:35,461 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:08:35,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:08:35,461 INFO L85 PathProgramCache]: Analyzing trace with hash -721751935, now seen corresponding path program 2 times [2024-11-09 07:08:35,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:08:35,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180888172] [2024-11-09 07:08:35,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:08:35,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:08:35,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:35,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:08:35,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:08:35,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180888172] [2024-11-09 07:08:35,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180888172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:08:35,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:08:35,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:08:35,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807861386] [2024-11-09 07:08:35,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:08:35,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:08:35,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:08:35,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:08:35,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:08:35,663 INFO L87 Difference]: Start difference. First operand 526 states and 1606 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 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) [2024-11-09 07:08:35,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:08:35,862 INFO L93 Difference]: Finished difference Result 826 states and 2524 transitions. [2024-11-09 07:08:35,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 07:08:35,862 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 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 14 [2024-11-09 07:08:35,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:08:35,867 INFO L225 Difference]: With dead ends: 826 [2024-11-09 07:08:35,867 INFO L226 Difference]: Without dead ends: 516 [2024-11-09 07:08:35,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-09 07:08:35,871 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 102 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:08:35,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 119 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:08:35,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-11-09 07:08:35,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 452. [2024-11-09 07:08:35,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 451 states have (on average 2.9822616407982263) internal successors, (1345), 451 states have internal predecessors, (1345), 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) [2024-11-09 07:08:35,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 1345 transitions. [2024-11-09 07:08:35,895 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 1345 transitions. Word has length 14 [2024-11-09 07:08:35,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:08:35,896 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 1345 transitions. [2024-11-09 07:08:35,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 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) [2024-11-09 07:08:35,896 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 1345 transitions. [2024-11-09 07:08:35,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 07:08:35,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:08:35,897 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:08:35,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:08:35,898 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:08:35,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:08:35,899 INFO L85 PathProgramCache]: Analyzing trace with hash -775641262, now seen corresponding path program 1 times [2024-11-09 07:08:35,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:08:35,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49501392] [2024-11-09 07:08:35,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:08:35,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:08:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:36,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:08:36,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:08:36,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49501392] [2024-11-09 07:08:36,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49501392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:08:36,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:08:36,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 07:08:36,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507397564] [2024-11-09 07:08:36,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:08:36,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:08:36,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:08:36,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:08:36,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:08:36,107 INFO L87 Difference]: Start difference. First operand 452 states and 1345 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 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) [2024-11-09 07:08:36,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:08:36,342 INFO L93 Difference]: Finished difference Result 1350 states and 4108 transitions. [2024-11-09 07:08:36,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 07:08:36,342 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 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 18 [2024-11-09 07:08:36,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:08:36,350 INFO L225 Difference]: With dead ends: 1350 [2024-11-09 07:08:36,351 INFO L226 Difference]: Without dead ends: 1094 [2024-11-09 07:08:36,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-09 07:08:36,353 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 170 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:08:36,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 139 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:08:36,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2024-11-09 07:08:36,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 538. [2024-11-09 07:08:36,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 3.0279329608938546) internal successors, (1626), 537 states have internal predecessors, (1626), 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) [2024-11-09 07:08:36,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1626 transitions. [2024-11-09 07:08:36,383 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1626 transitions. Word has length 18 [2024-11-09 07:08:36,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:08:36,383 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 1626 transitions. [2024-11-09 07:08:36,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 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) [2024-11-09 07:08:36,384 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1626 transitions. [2024-11-09 07:08:36,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 07:08:36,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:08:36,385 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:08:36,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 07:08:36,386 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:08:36,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:08:36,386 INFO L85 PathProgramCache]: Analyzing trace with hash 304878308, now seen corresponding path program 2 times [2024-11-09 07:08:36,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:08:36,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771799480] [2024-11-09 07:08:36,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:08:36,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:08:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:36,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:08:36,555 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:08:36,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771799480] [2024-11-09 07:08:36,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771799480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:08:36,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:08:36,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 07:08:36,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716537085] [2024-11-09 07:08:36,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:08:36,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:08:36,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:08:36,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:08:36,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:08:36,557 INFO L87 Difference]: Start difference. First operand 538 states and 1626 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 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) [2024-11-09 07:08:36,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:08:36,771 INFO L93 Difference]: Finished difference Result 826 states and 2526 transitions. [2024-11-09 07:08:36,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 07:08:36,771 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 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 18 [2024-11-09 07:08:36,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:08:36,776 INFO L225 Difference]: With dead ends: 826 [2024-11-09 07:08:36,776 INFO L226 Difference]: Without dead ends: 534 [2024-11-09 07:08:36,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-11-09 07:08:36,778 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 146 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:08:36,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 141 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:08:36,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-09 07:08:36,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 428. [2024-11-09 07:08:36,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 427 states have (on average 2.946135831381733) internal successors, (1258), 427 states have internal predecessors, (1258), 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) [2024-11-09 07:08:36,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 1258 transitions. [2024-11-09 07:08:36,796 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 1258 transitions. Word has length 18 [2024-11-09 07:08:36,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:08:36,796 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 1258 transitions. [2024-11-09 07:08:36,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 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) [2024-11-09 07:08:36,797 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 1258 transitions. [2024-11-09 07:08:36,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 07:08:36,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:08:36,798 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:08:36,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 07:08:36,799 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:08:36,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:08:36,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1094774226, now seen corresponding path program 3 times [2024-11-09 07:08:36,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:08:36,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860055436] [2024-11-09 07:08:36,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:08:36,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:08:36,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:36,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:08:36,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:08:36,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860055436] [2024-11-09 07:08:36,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860055436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:08:36,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:08:36,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 07:08:36,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141582043] [2024-11-09 07:08:36,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:08:36,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:08:36,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:08:36,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:08:36,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:08:36,930 INFO L87 Difference]: Start difference. First operand 428 states and 1258 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 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) [2024-11-09 07:08:37,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:08:37,106 INFO L93 Difference]: Finished difference Result 870 states and 2558 transitions. [2024-11-09 07:08:37,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 07:08:37,106 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 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 18 [2024-11-09 07:08:37,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:08:37,111 INFO L225 Difference]: With dead ends: 870 [2024-11-09 07:08:37,112 INFO L226 Difference]: Without dead ends: 638 [2024-11-09 07:08:37,112 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-09 07:08:37,114 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 104 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:08:37,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 126 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:08:37,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-11-09 07:08:37,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 526. [2024-11-09 07:08:37,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 525 states have (on average 2.96) internal successors, (1554), 525 states have internal predecessors, (1554), 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) [2024-11-09 07:08:37,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1554 transitions. [2024-11-09 07:08:37,137 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1554 transitions. Word has length 18 [2024-11-09 07:08:37,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:08:37,137 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 1554 transitions. [2024-11-09 07:08:37,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 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) [2024-11-09 07:08:37,137 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1554 transitions. [2024-11-09 07:08:37,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 07:08:37,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:08:37,139 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:08:37,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 07:08:37,139 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:08:37,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:08:37,140 INFO L85 PathProgramCache]: Analyzing trace with hash 184507434, now seen corresponding path program 1 times [2024-11-09 07:08:37,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:08:37,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915160156] [2024-11-09 07:08:37,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:08:37,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:08:37,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:37,280 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:08:37,281 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:08:37,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915160156] [2024-11-09 07:08:37,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915160156] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:08:37,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778319025] [2024-11-09 07:08:37,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:08:37,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:08:37,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:08:37,284 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:08:37,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:08:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:37,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 07:08:37,378 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:08:37,521 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:08:37,521 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:08:37,674 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:08:37,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778319025] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:08:37,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [664144051] [2024-11-09 07:08:37,695 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 07:08:37,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:08:37,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-09 07:08:37,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999742058] [2024-11-09 07:08:37,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:08:37,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 07:08:37,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:08:37,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 07:08:37,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-09 07:08:37,699 INFO L87 Difference]: Start difference. First operand 526 states and 1554 transitions. Second operand has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 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) [2024-11-09 07:08:38,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:08:38,183 INFO L93 Difference]: Finished difference Result 1246 states and 3918 transitions. [2024-11-09 07:08:38,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 07:08:38,184 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 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 [2024-11-09 07:08:38,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:08:38,190 INFO L225 Difference]: With dead ends: 1246 [2024-11-09 07:08:38,190 INFO L226 Difference]: Without dead ends: 702 [2024-11-09 07:08:38,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=227, Invalid=529, Unknown=0, NotChecked=0, Total=756 [2024-11-09 07:08:38,192 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 382 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:08:38,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 227 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:08:38,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2024-11-09 07:08:38,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 600. [2024-11-09 07:08:38,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 599 states have (on average 2.8948247078464107) internal successors, (1734), 599 states have internal predecessors, (1734), 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) [2024-11-09 07:08:38,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1734 transitions. [2024-11-09 07:08:38,216 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1734 transitions. Word has length 22 [2024-11-09 07:08:38,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:08:38,217 INFO L471 AbstractCegarLoop]: Abstraction has 600 states and 1734 transitions. [2024-11-09 07:08:38,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 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) [2024-11-09 07:08:38,217 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1734 transitions. [2024-11-09 07:08:38,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 07:08:38,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:08:38,219 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:08:38,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 07:08:38,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-09 07:08:38,420 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:08:38,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:08:38,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1372502436, now seen corresponding path program 1 times [2024-11-09 07:08:38,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:08:38,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002876637] [2024-11-09 07:08:38,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:08:38,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:08:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:38,640 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:08:38,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:08:38,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002876637] [2024-11-09 07:08:38,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002876637] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:08:38,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526061113] [2024-11-09 07:08:38,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:08:38,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:08:38,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:08:38,644 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:08:38,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 07:08:38,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:38,722 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 07:08:38,724 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:08:38,867 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:08:38,867 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:08:39,147 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:08:39,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526061113] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:08:39,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [486934869] [2024-11-09 07:08:39,149 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 07:08:39,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:08:39,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-09 07:08:39,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702217442] [2024-11-09 07:08:39,156 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:08:39,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 07:08:39,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:08:39,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 07:08:39,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2024-11-09 07:08:39,158 INFO L87 Difference]: Start difference. First operand 600 states and 1734 transitions. Second operand has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 16 states have internal predecessors, (60), 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) [2024-11-09 07:08:39,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:08:39,758 INFO L93 Difference]: Finished difference Result 1542 states and 4598 transitions. [2024-11-09 07:08:39,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-09 07:08:39,759 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 16 states have internal predecessors, (60), 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 34 [2024-11-09 07:08:39,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:08:39,766 INFO L225 Difference]: With dead ends: 1542 [2024-11-09 07:08:39,766 INFO L226 Difference]: Without dead ends: 942 [2024-11-09 07:08:39,768 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=348, Invalid=912, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 07:08:39,769 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 485 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:08:39,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 321 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 07:08:39,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2024-11-09 07:08:39,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 822. [2024-11-09 07:08:39,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 821 states have (on average 2.7113276492082825) internal successors, (2226), 821 states have internal predecessors, (2226), 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) [2024-11-09 07:08:39,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 2226 transitions. [2024-11-09 07:08:39,799 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 2226 transitions. Word has length 34 [2024-11-09 07:08:39,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:08:39,800 INFO L471 AbstractCegarLoop]: Abstraction has 822 states and 2226 transitions. [2024-11-09 07:08:39,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 16 states have internal predecessors, (60), 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) [2024-11-09 07:08:39,800 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 2226 transitions. [2024-11-09 07:08:39,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 07:08:39,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:08:39,802 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:08:39,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 07:08:40,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:08:40,003 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:08:40,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:08:40,003 INFO L85 PathProgramCache]: Analyzing trace with hash -537922580, now seen corresponding path program 2 times [2024-11-09 07:08:40,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:08:40,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382314430] [2024-11-09 07:08:40,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:08:40,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:08:40,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:40,195 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:08:40,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:08:40,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382314430] [2024-11-09 07:08:40,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382314430] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:08:40,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644050946] [2024-11-09 07:08:40,196 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:08:40,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:08:40,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:08:40,198 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:08:40,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 07:08:40,269 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 07:08:40,269 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:08:40,270 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 07:08:40,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:08:40,376 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:08:40,377 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:08:40,592 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:08:40,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644050946] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:08:40,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1204943610] [2024-11-09 07:08:40,593 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 07:08:40,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:08:40,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-09 07:08:40,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588612282] [2024-11-09 07:08:40,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:08:40,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 07:08:40,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:08:40,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 07:08:40,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-09 07:08:40,597 INFO L87 Difference]: Start difference. First operand 822 states and 2226 transitions. Second operand has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 16 states have internal predecessors, (60), 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) [2024-11-09 07:08:41,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:08:41,412 INFO L93 Difference]: Finished difference Result 2954 states and 8574 transitions. [2024-11-09 07:08:41,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-09 07:08:41,413 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 16 states have internal predecessors, (60), 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 34 [2024-11-09 07:08:41,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:08:41,432 INFO L225 Difference]: With dead ends: 2954 [2024-11-09 07:08:41,433 INFO L226 Difference]: Without dead ends: 2338 [2024-11-09 07:08:41,435 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=450, Invalid=1356, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 07:08:41,436 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 419 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:08:41,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 482 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 07:08:41,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2338 states. [2024-11-09 07:08:41,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2338 to 1118. [2024-11-09 07:08:41,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1118 states, 1117 states have (on average 2.8146821844225602) internal successors, (3144), 1117 states have internal predecessors, (3144), 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) [2024-11-09 07:08:41,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 3144 transitions. [2024-11-09 07:08:41,493 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 3144 transitions. Word has length 34 [2024-11-09 07:08:41,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:08:41,493 INFO L471 AbstractCegarLoop]: Abstraction has 1118 states and 3144 transitions. [2024-11-09 07:08:41,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 16 states have internal predecessors, (60), 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) [2024-11-09 07:08:41,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 3144 transitions. [2024-11-09 07:08:41,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 07:08:41,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:08:41,496 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:08:41,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 07:08:41,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 07:08:41,701 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:08:41,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:08:41,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1960502384, now seen corresponding path program 3 times [2024-11-09 07:08:41,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:08:41,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104219881] [2024-11-09 07:08:41,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:08:41,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:08:41,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:41,949 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:08:41,950 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:08:41,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104219881] [2024-11-09 07:08:41,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104219881] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:08:41,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73439091] [2024-11-09 07:08:41,951 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 07:08:41,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:08:41,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:08:41,953 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:08:41,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 07:08:42,031 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 07:08:42,031 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:08:42,033 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 07:08:42,035 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:08:42,127 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:08:42,127 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:08:42,346 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:08:42,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73439091] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:08:42,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [888959454] [2024-11-09 07:08:42,347 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 07:08:42,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:08:42,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2024-11-09 07:08:42,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950314395] [2024-11-09 07:08:42,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:08:42,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 07:08:42,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:08:42,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 07:08:42,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2024-11-09 07:08:42,351 INFO L87 Difference]: Start difference. First operand 1118 states and 3144 transitions. Second operand has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 17 states have internal predecessors, (61), 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) [2024-11-09 07:08:43,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:08:43,348 INFO L93 Difference]: Finished difference Result 2614 states and 7800 transitions. [2024-11-09 07:08:43,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-09 07:08:43,348 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 17 states have internal predecessors, (61), 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 34 [2024-11-09 07:08:43,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:08:43,361 INFO L225 Difference]: With dead ends: 2614 [2024-11-09 07:08:43,361 INFO L226 Difference]: Without dead ends: 1678 [2024-11-09 07:08:43,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 617 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=652, Invalid=1700, Unknown=0, NotChecked=0, Total=2352 [2024-11-09 07:08:43,367 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 646 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:08:43,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 472 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 07:08:43,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2024-11-09 07:08:43,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 898. [2024-11-09 07:08:43,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 897 states have (on average 2.7937569676700114) internal successors, (2506), 897 states have internal predecessors, (2506), 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) [2024-11-09 07:08:43,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 2506 transitions. [2024-11-09 07:08:43,411 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 2506 transitions. Word has length 34 [2024-11-09 07:08:43,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:08:43,413 INFO L471 AbstractCegarLoop]: Abstraction has 898 states and 2506 transitions. [2024-11-09 07:08:43,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 17 states have internal predecessors, (61), 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) [2024-11-09 07:08:43,413 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 2506 transitions. [2024-11-09 07:08:43,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 07:08:43,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:08:43,416 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:08:43,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 07:08:43,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 07:08:43,618 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:08:43,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:08:43,618 INFO L85 PathProgramCache]: Analyzing trace with hash -37205862, now seen corresponding path program 4 times [2024-11-09 07:08:43,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:08:43,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905132806] [2024-11-09 07:08:43,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:08:43,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:08:43,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:43,884 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:08:43,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:08:43,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905132806] [2024-11-09 07:08:43,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905132806] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:08:43,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504671148] [2024-11-09 07:08:43,885 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 07:08:43,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:08:43,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:08:43,887 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:08:43,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 07:08:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:43,958 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 07:08:43,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:08:44,099 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:08:44,099 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:08:44,366 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:08:44,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504671148] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:08:44,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1599363532] [2024-11-09 07:08:44,367 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 07:08:44,368 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:08:44,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2024-11-09 07:08:44,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490986844] [2024-11-09 07:08:44,368 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:08:44,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-09 07:08:44,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:08:44,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-09 07:08:44,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=462, Unknown=0, NotChecked=0, Total=600 [2024-11-09 07:08:44,370 INFO L87 Difference]: Start difference. First operand 898 states and 2506 transitions. Second operand has 25 states, 25 states have (on average 3.6) internal successors, (90), 24 states have internal predecessors, (90), 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) [2024-11-09 07:08:45,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:08:45,945 INFO L93 Difference]: Finished difference Result 3078 states and 9326 transitions. [2024-11-09 07:08:45,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-09 07:08:45,946 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.6) internal successors, (90), 24 states have internal predecessors, (90), 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 46 [2024-11-09 07:08:45,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:08:45,959 INFO L225 Difference]: With dead ends: 3078 [2024-11-09 07:08:45,959 INFO L226 Difference]: Without dead ends: 1926 [2024-11-09 07:08:45,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1514 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1340, Invalid=3490, Unknown=0, NotChecked=0, Total=4830 [2024-11-09 07:08:45,964 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 1227 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 07:08:45,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1227 Valid, 493 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 07:08:45,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1926 states. [2024-11-09 07:08:45,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1926 to 1176. [2024-11-09 07:08:46,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1176 states, 1175 states have (on average 2.782978723404255) internal successors, (3270), 1175 states have internal predecessors, (3270), 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) [2024-11-09 07:08:46,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 3270 transitions. [2024-11-09 07:08:46,013 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 3270 transitions. Word has length 46 [2024-11-09 07:08:46,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:08:46,013 INFO L471 AbstractCegarLoop]: Abstraction has 1176 states and 3270 transitions. [2024-11-09 07:08:46,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.6) internal successors, (90), 24 states have internal predecessors, (90), 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) [2024-11-09 07:08:46,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 3270 transitions. [2024-11-09 07:08:46,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 07:08:46,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:08:46,017 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:08:46,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 07:08:46,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-09 07:08:46,222 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:08:46,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:08:46,222 INFO L85 PathProgramCache]: Analyzing trace with hash -145347188, now seen corresponding path program 5 times [2024-11-09 07:08:46,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:08:46,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665203180] [2024-11-09 07:08:46,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:08:46,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:08:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:46,857 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:08:46,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:08:46,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665203180] [2024-11-09 07:08:46,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665203180] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:08:46,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801249480] [2024-11-09 07:08:46,858 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:08:46,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:08:46,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:08:46,860 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:08:46,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 07:08:46,946 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-09 07:08:46,946 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:08:46,948 INFO L255 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 07:08:46,950 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:08:47,212 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:08:47,212 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:08:48,102 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:08:48,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801249480] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:08:48,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [25770680] [2024-11-09 07:08:48,103 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 07:08:48,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:08:48,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 40 [2024-11-09 07:08:48,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883553645] [2024-11-09 07:08:48,104 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:08:48,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-09 07:08:48,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:08:48,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-09 07:08:48,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=1243, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 07:08:48,106 INFO L87 Difference]: Start difference. First operand 1176 states and 3270 transitions. Second operand has 41 states, 41 states have (on average 3.926829268292683) internal successors, (161), 40 states have internal predecessors, (161), 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) [2024-11-09 07:08:50,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:08:50,085 INFO L93 Difference]: Finished difference Result 3270 states and 9590 transitions. [2024-11-09 07:08:50,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-09 07:08:50,086 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 3.926829268292683) internal successors, (161), 40 states have internal predecessors, (161), 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 82 [2024-11-09 07:08:50,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:08:50,100 INFO L225 Difference]: With dead ends: 3270 [2024-11-09 07:08:50,101 INFO L226 Difference]: Without dead ends: 1998 [2024-11-09 07:08:50,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2354 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2400, Invalid=6720, Unknown=0, NotChecked=0, Total=9120 [2024-11-09 07:08:50,105 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 1480 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 07:08:50,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1480 Valid, 614 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 07:08:50,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1998 states. [2024-11-09 07:08:50,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1998 to 1686. [2024-11-09 07:08:50,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1686 states, 1685 states have (on average 2.574480712166172) internal successors, (4338), 1685 states have internal predecessors, (4338), 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) [2024-11-09 07:08:50,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1686 states to 1686 states and 4338 transitions. [2024-11-09 07:08:50,156 INFO L78 Accepts]: Start accepts. Automaton has 1686 states and 4338 transitions. Word has length 82 [2024-11-09 07:08:50,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:08:50,157 INFO L471 AbstractCegarLoop]: Abstraction has 1686 states and 4338 transitions. [2024-11-09 07:08:50,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 3.926829268292683) internal successors, (161), 40 states have internal predecessors, (161), 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) [2024-11-09 07:08:50,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 4338 transitions. [2024-11-09 07:08:50,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 07:08:50,161 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:08:50,161 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:08:50,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 07:08:50,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:08:50,362 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:08:50,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:08:50,362 INFO L85 PathProgramCache]: Analyzing trace with hash 797801244, now seen corresponding path program 6 times [2024-11-09 07:08:50,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:08:50,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362632692] [2024-11-09 07:08:50,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:08:50,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:08:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:50,953 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:08:50,953 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:08:50,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362632692] [2024-11-09 07:08:50,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362632692] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:08:50,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220594188] [2024-11-09 07:08:50,954 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 07:08:50,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:08:50,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:08:50,956 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:08:50,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 07:08:51,033 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 07:08:51,034 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:08:51,035 INFO L255 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 07:08:51,038 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:08:51,285 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:08:51,285 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:08:52,103 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:08:52,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220594188] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:08:52,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [265305804] [2024-11-09 07:08:52,105 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 07:08:52,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:08:52,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 40 [2024-11-09 07:08:52,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206495155] [2024-11-09 07:08:52,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:08:52,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-09 07:08:52,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:08:52,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-09 07:08:52,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=352, Invalid=1288, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 07:08:52,109 INFO L87 Difference]: Start difference. First operand 1686 states and 4338 transitions. Second operand has 41 states, 41 states have (on average 3.926829268292683) internal successors, (161), 40 states have internal predecessors, (161), 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) [2024-11-09 07:08:54,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:08:54,344 INFO L93 Difference]: Finished difference Result 4638 states and 12466 transitions. [2024-11-09 07:08:54,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-11-09 07:08:54,345 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 3.926829268292683) internal successors, (161), 40 states have internal predecessors, (161), 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 82 [2024-11-09 07:08:54,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:08:54,366 INFO L225 Difference]: With dead ends: 4638 [2024-11-09 07:08:54,366 INFO L226 Difference]: Without dead ends: 3350 [2024-11-09 07:08:54,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2719 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=2538, Invalid=7968, Unknown=0, NotChecked=0, Total=10506 [2024-11-09 07:08:54,375 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 1286 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:08:54,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1286 Valid, 708 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 07:08:54,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3350 states. [2024-11-09 07:08:54,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3350 to 1830. [2024-11-09 07:08:54,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1830 states, 1829 states have (on average 2.599234554401312) internal successors, (4754), 1829 states have internal predecessors, (4754), 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) [2024-11-09 07:08:54,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1830 states to 1830 states and 4754 transitions. [2024-11-09 07:08:54,451 INFO L78 Accepts]: Start accepts. Automaton has 1830 states and 4754 transitions. Word has length 82 [2024-11-09 07:08:54,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:08:54,452 INFO L471 AbstractCegarLoop]: Abstraction has 1830 states and 4754 transitions. [2024-11-09 07:08:54,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 3.926829268292683) internal successors, (161), 40 states have internal predecessors, (161), 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) [2024-11-09 07:08:54,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1830 states and 4754 transitions. [2024-11-09 07:08:54,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 07:08:54,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:08:54,457 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:08:54,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 07:08:54,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:08:54,658 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:08:54,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:08:54,658 INFO L85 PathProgramCache]: Analyzing trace with hash -537375612, now seen corresponding path program 7 times [2024-11-09 07:08:54,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:08:54,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397079728] [2024-11-09 07:08:54,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:08:54,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:08:54,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:55,246 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:08:55,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:08:55,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397079728] [2024-11-09 07:08:55,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397079728] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:08:55,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108742452] [2024-11-09 07:08:55,247 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 07:08:55,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:08:55,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:08:55,249 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:08:55,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 07:08:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:55,327 INFO L255 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 07:08:55,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:08:55,572 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:08:55,573 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:08:56,341 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:08:56,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108742452] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:08:56,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [448254005] [2024-11-09 07:08:56,342 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 07:08:56,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:08:56,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 41 [2024-11-09 07:08:56,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613290130] [2024-11-09 07:08:56,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:08:56,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-09 07:08:56,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:08:56,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-09 07:08:56,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=1420, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 07:08:56,352 INFO L87 Difference]: Start difference. First operand 1830 states and 4754 transitions. Second operand has 42 states, 42 states have (on average 3.880952380952381) internal successors, (163), 41 states have internal predecessors, (163), 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) [2024-11-09 07:08:58,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:08:58,748 INFO L93 Difference]: Finished difference Result 5534 states and 14626 transitions. [2024-11-09 07:08:58,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2024-11-09 07:08:58,749 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 3.880952380952381) internal successors, (163), 41 states have internal predecessors, (163), 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 82 [2024-11-09 07:08:58,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:08:58,765 INFO L225 Difference]: With dead ends: 5534 [2024-11-09 07:08:58,765 INFO L226 Difference]: Without dead ends: 4214 [2024-11-09 07:08:58,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3482 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2817, Invalid=9393, Unknown=0, NotChecked=0, Total=12210 [2024-11-09 07:08:58,772 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 1331 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:08:58,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1331 Valid, 984 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 07:08:58,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4214 states. [2024-11-09 07:08:58,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4214 to 2074. [2024-11-09 07:08:58,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2074 states, 2073 states have (on average 2.6985045827303424) internal successors, (5594), 2073 states have internal predecessors, (5594), 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) [2024-11-09 07:08:58,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2074 states to 2074 states and 5594 transitions. [2024-11-09 07:08:58,857 INFO L78 Accepts]: Start accepts. Automaton has 2074 states and 5594 transitions. Word has length 82 [2024-11-09 07:08:58,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:08:58,857 INFO L471 AbstractCegarLoop]: Abstraction has 2074 states and 5594 transitions. [2024-11-09 07:08:58,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 3.880952380952381) internal successors, (163), 41 states have internal predecessors, (163), 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) [2024-11-09 07:08:58,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2074 states and 5594 transitions. [2024-11-09 07:08:58,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 07:08:58,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:08:58,863 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:08:58,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-09 07:08:59,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-09 07:08:59,067 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:08:59,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:08:59,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1263472526, now seen corresponding path program 8 times [2024-11-09 07:08:59,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:08:59,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355265273] [2024-11-09 07:08:59,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:08:59,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:08:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:59,639 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:08:59,639 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:08:59,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355265273] [2024-11-09 07:08:59,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355265273] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:08:59,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763962273] [2024-11-09 07:08:59,640 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:08:59,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:08:59,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:08:59,642 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:08:59,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 07:08:59,724 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-09 07:08:59,724 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:08:59,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 07:08:59,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:08:59,877 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:08:59,877 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:09:00,448 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:09:00,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763962273] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:09:00,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1349222437] [2024-11-09 07:09:00,450 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 07:09:00,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:09:00,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 40 [2024-11-09 07:09:00,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005866982] [2024-11-09 07:09:00,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:09:00,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-09 07:09:00,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:09:00,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-09 07:09:00,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=1333, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 07:09:00,454 INFO L87 Difference]: Start difference. First operand 2074 states and 5594 transitions. Second operand has 41 states, 41 states have (on average 3.926829268292683) internal successors, (161), 40 states have internal predecessors, (161), 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) [2024-11-09 07:09:03,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:09:03,030 INFO L93 Difference]: Finished difference Result 7118 states and 20470 transitions. [2024-11-09 07:09:03,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2024-11-09 07:09:03,033 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 3.926829268292683) internal successors, (161), 40 states have internal predecessors, (161), 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 82 [2024-11-09 07:09:03,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:09:03,083 INFO L225 Difference]: With dead ends: 7118 [2024-11-09 07:09:03,083 INFO L226 Difference]: Without dead ends: 5438 [2024-11-09 07:09:03,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4925 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=3687, Invalid=11319, Unknown=0, NotChecked=0, Total=15006 [2024-11-09 07:09:03,090 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 1838 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1838 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:09:03,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1838 Valid, 890 Invalid, 923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 07:09:03,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5438 states. [2024-11-09 07:09:03,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5438 to 1786. [2024-11-09 07:09:03,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1786 states, 1785 states have (on average 2.6980392156862747) internal successors, (4816), 1785 states have internal predecessors, (4816), 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) [2024-11-09 07:09:03,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1786 states to 1786 states and 4816 transitions. [2024-11-09 07:09:03,171 INFO L78 Accepts]: Start accepts. Automaton has 1786 states and 4816 transitions. Word has length 82 [2024-11-09 07:09:03,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:09:03,172 INFO L471 AbstractCegarLoop]: Abstraction has 1786 states and 4816 transitions. [2024-11-09 07:09:03,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 3.926829268292683) internal successors, (161), 40 states have internal predecessors, (161), 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) [2024-11-09 07:09:03,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1786 states and 4816 transitions. [2024-11-09 07:09:03,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-09 07:09:03,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:09:03,177 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:03,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 07:09:03,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 07:09:03,381 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:09:03,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:03,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1904547120, now seen corresponding path program 9 times [2024-11-09 07:09:03,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:09:03,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683824776] [2024-11-09 07:09:03,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:03,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:03,943 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:03,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:09:03,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683824776] [2024-11-09 07:09:03,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683824776] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:09:03,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834619328] [2024-11-09 07:09:03,944 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 07:09:03,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:09:03,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:09:03,945 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:09:03,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 07:09:04,024 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 07:09:04,025 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:09:04,026 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 07:09:04,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:09:04,258 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:04,259 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:09:04,898 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:04,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1834619328] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:09:04,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1379262815] [2024-11-09 07:09:04,899 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 07:09:04,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:09:04,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26] total 46 [2024-11-09 07:09:04,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91556867] [2024-11-09 07:09:04,900 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:09:04,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-11-09 07:09:04,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:09:04,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-11-09 07:09:04,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=501, Invalid=1661, Unknown=0, NotChecked=0, Total=2162 [2024-11-09 07:09:04,903 INFO L87 Difference]: Start difference. First operand 1786 states and 4816 transitions. Second operand has 47 states, 47 states have (on average 4.0) internal successors, (188), 46 states have internal predecessors, (188), 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) [2024-11-09 07:09:08,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:09:08,461 INFO L93 Difference]: Finished difference Result 6526 states and 18886 transitions. [2024-11-09 07:09:08,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2024-11-09 07:09:08,461 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 4.0) internal successors, (188), 46 states have internal predecessors, (188), 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 98 [2024-11-09 07:09:08,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:09:08,477 INFO L225 Difference]: With dead ends: 6526 [2024-11-09 07:09:08,477 INFO L226 Difference]: Without dead ends: 4438 [2024-11-09 07:09:08,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 171 SyntacticMatches, 4 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7632 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=5809, Invalid=15947, Unknown=0, NotChecked=0, Total=21756 [2024-11-09 07:09:08,484 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 3637 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3637 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:09:08,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3637 Valid, 886 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 871 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 07:09:08,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4438 states. [2024-11-09 07:09:08,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4438 to 2248. [2024-11-09 07:09:08,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2248 states, 2247 states have (on average 2.7191811303960836) internal successors, (6110), 2247 states have internal predecessors, (6110), 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) [2024-11-09 07:09:08,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2248 states to 2248 states and 6110 transitions. [2024-11-09 07:09:08,564 INFO L78 Accepts]: Start accepts. Automaton has 2248 states and 6110 transitions. Word has length 98 [2024-11-09 07:09:08,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:09:08,565 INFO L471 AbstractCegarLoop]: Abstraction has 2248 states and 6110 transitions. [2024-11-09 07:09:08,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 4.0) internal successors, (188), 46 states have internal predecessors, (188), 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) [2024-11-09 07:09:08,565 INFO L276 IsEmpty]: Start isEmpty. Operand 2248 states and 6110 transitions. [2024-11-09 07:09:08,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-09 07:09:08,573 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:09:08,573 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:08,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-09 07:09:08,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-09 07:09:08,774 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:09:08,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:08,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1187456482, now seen corresponding path program 10 times [2024-11-09 07:09:08,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:09:08,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407905354] [2024-11-09 07:09:08,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:08,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:10,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 1482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:10,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:09:10,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407905354] [2024-11-09 07:09:10,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407905354] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:09:10,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012091546] [2024-11-09 07:09:10,238 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 07:09:10,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:09:10,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:09:10,240 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:09:10,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 07:09:10,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:10,342 INFO L255 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-09 07:09:10,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:09:10,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 1482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:10,675 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:09:11,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 1482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:11,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012091546] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:09:11,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [901316839] [2024-11-09 07:09:11,906 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 07:09:11,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:09:11,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 44] total 86 [2024-11-09 07:09:11,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788050137] [2024-11-09 07:09:11,907 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:09:11,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2024-11-09 07:09:11,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:09:11,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2024-11-09 07:09:11,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1740, Invalid=5742, Unknown=0, NotChecked=0, Total=7482 [2024-11-09 07:09:11,912 INFO L87 Difference]: Start difference. First operand 2248 states and 6110 transitions. Second operand has 87 states, 87 states have (on average 3.8850574712643677) internal successors, (338), 86 states have internal predecessors, (338), 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) [2024-11-09 07:09:15,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:09:15,730 INFO L93 Difference]: Finished difference Result 4766 states and 13162 transitions. [2024-11-09 07:09:15,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2024-11-09 07:09:15,730 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 3.8850574712643677) internal successors, (338), 86 states have internal predecessors, (338), 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 170 [2024-11-09 07:09:15,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:09:15,743 INFO L225 Difference]: With dead ends: 4766 [2024-11-09 07:09:15,743 INFO L226 Difference]: Without dead ends: 4334 [2024-11-09 07:09:15,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9976 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=8460, Invalid=21990, Unknown=0, NotChecked=0, Total=30450 [2024-11-09 07:09:15,750 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 2736 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2736 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:09:15,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2736 Valid, 854 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 07:09:15,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4334 states. [2024-11-09 07:09:15,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4334 to 3646. [2024-11-09 07:09:15,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3646 states, 3645 states have (on average 2.8230452674897117) internal successors, (10290), 3645 states have internal predecessors, (10290), 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) [2024-11-09 07:09:15,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 10290 transitions. [2024-11-09 07:09:15,891 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 10290 transitions. Word has length 170 [2024-11-09 07:09:15,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:09:15,892 INFO L471 AbstractCegarLoop]: Abstraction has 3646 states and 10290 transitions. [2024-11-09 07:09:15,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 3.8850574712643677) internal successors, (338), 86 states have internal predecessors, (338), 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) [2024-11-09 07:09:15,893 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 10290 transitions. [2024-11-09 07:09:15,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-09 07:09:15,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:09:15,905 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:15,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-09 07:09:16,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 07:09:16,110 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:09:16,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:16,110 INFO L85 PathProgramCache]: Analyzing trace with hash -190959590, now seen corresponding path program 11 times [2024-11-09 07:09:16,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:09:16,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911916688] [2024-11-09 07:09:16,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:16,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:16,762 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 1481 proven. 77 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 07:09:16,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:09:16,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911916688] [2024-11-09 07:09:16,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911916688] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:09:16,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690225147] [2024-11-09 07:09:16,762 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:09:16,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:09:16,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:09:16,764 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:09:16,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 07:09:16,895 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 24 check-sat command(s) [2024-11-09 07:09:16,896 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:09:16,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 07:09:16,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:09:17,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 1558 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 07:09:17,097 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:09:17,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690225147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:17,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:09:17,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [23] total 24 [2024-11-09 07:09:17,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566043125] [2024-11-09 07:09:17,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:17,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 07:09:17,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:09:17,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 07:09:17,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=296, Unknown=0, NotChecked=0, Total=552 [2024-11-09 07:09:17,101 INFO L87 Difference]: Start difference. First operand 3646 states and 10290 transitions. Second operand has 23 states, 23 states have (on average 7.434782608695652) internal successors, (171), 23 states have internal predecessors, (171), 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) [2024-11-09 07:09:17,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:09:17,641 INFO L93 Difference]: Finished difference Result 35888 states and 100382 transitions. [2024-11-09 07:09:17,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 07:09:17,641 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.434782608695652) internal successors, (171), 23 states have internal predecessors, (171), 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 174 [2024-11-09 07:09:17,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:09:17,666 INFO L225 Difference]: With dead ends: 35888 [2024-11-09 07:09:17,666 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 07:09:17,709 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=256, Invalid=296, Unknown=0, NotChecked=0, Total=552 [2024-11-09 07:09:17,709 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 127 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:09:17,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 371 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 07:09:17,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 07:09:17,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 07:09:17,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:17,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 07:09:17,738 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 174 [2024-11-09 07:09:17,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:09:17,738 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 07:09:17,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.434782608695652) internal successors, (171), 23 states have internal predecessors, (171), 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) [2024-11-09 07:09:17,738 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 07:09:17,739 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 07:09:17,741 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-09 07:09:17,742 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-09 07:09:17,742 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-09 07:09:17,742 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-09 07:09:17,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-09 07:09:17,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:09:17,950 INFO L407 BasicCegarLoop]: Path program histogram: [11, 3, 2, 1, 1, 1] [2024-11-09 07:09:17,956 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 07:09:17,956 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:09:17,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:09:17 BasicIcfg [2024-11-09 07:09:17,959 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:09:17,959 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:09:17,959 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:09:17,959 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:09:17,960 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:08:33" (3/4) ... [2024-11-09 07:09:17,962 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 07:09:17,965 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2024-11-09 07:09:17,966 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2024-11-09 07:09:17,969 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2024-11-09 07:09:17,969 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-09 07:09:17,970 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-09 07:09:17,970 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 07:09:18,054 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 07:09:18,054 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 07:09:18,054 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:09:18,055 INFO L158 Benchmark]: Toolchain (without parser) took 45814.22ms. Allocated memory was 153.1MB in the beginning and 524.3MB in the end (delta: 371.2MB). Free memory was 117.7MB in the beginning and 406.0MB in the end (delta: -288.3MB). Peak memory consumption was 83.4MB. Max. memory is 16.1GB. [2024-11-09 07:09:18,055 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 153.1MB. Free memory was 122.5MB in the beginning and 122.4MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:09:18,060 INFO L158 Benchmark]: CACSL2BoogieTranslator took 583.39ms. Allocated memory is still 153.1MB. Free memory was 117.7MB in the beginning and 95.6MB in the end (delta: 22.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 07:09:18,060 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.21ms. Allocated memory is still 153.1MB. Free memory was 95.6MB in the beginning and 94.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:09:18,060 INFO L158 Benchmark]: Boogie Preprocessor took 32.90ms. Allocated memory is still 153.1MB. Free memory was 94.0MB in the beginning and 92.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:09:18,060 INFO L158 Benchmark]: RCFGBuilder took 545.23ms. Allocated memory is still 153.1MB. Free memory was 92.5MB in the beginning and 74.2MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 07:09:18,061 INFO L158 Benchmark]: TraceAbstraction took 44497.81ms. Allocated memory was 153.1MB in the beginning and 524.3MB in the end (delta: 371.2MB). Free memory was 73.1MB in the beginning and 410.2MB in the end (delta: -337.1MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. [2024-11-09 07:09:18,061 INFO L158 Benchmark]: Witness Printer took 95.44ms. Allocated memory is still 524.3MB. Free memory was 410.2MB in the beginning and 406.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 07:09:18,063 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 153.1MB. Free memory was 122.5MB in the beginning and 122.4MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 583.39ms. Allocated memory is still 153.1MB. Free memory was 117.7MB in the beginning and 95.6MB in the end (delta: 22.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.21ms. Allocated memory is still 153.1MB. Free memory was 95.6MB in the beginning and 94.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.90ms. Allocated memory is still 153.1MB. Free memory was 94.0MB in the beginning and 92.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 545.23ms. Allocated memory is still 153.1MB. Free memory was 92.5MB in the beginning and 74.2MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 44497.81ms. Allocated memory was 153.1MB in the beginning and 524.3MB in the end (delta: 371.2MB). Free memory was 73.1MB in the beginning and 410.2MB in the end (delta: -337.1MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. * Witness Printer took 95.44ms. Allocated memory is still 524.3MB. Free memory was 410.2MB in the beginning and 406.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 711]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 693]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 46 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 44.3s, OverallIterations: 19, TraceHistogramMax: 21, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.1s, AutomataDifference: 23.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16305 SdHoareTripleChecker+Valid, 6.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16305 mSDsluCounter, 8071 SdHoareTripleChecker+Invalid, 5.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7392 mSDsCounter, 495 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8254 IncrementalHoareTripleChecker+Invalid, 8749 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 495 mSolverCounterUnsat, 679 mSDtfsCounter, 8254 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2557 GetRequests, 1520 SyntacticMatches, 4 SemanticMatches, 1033 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34125 ImplicationChecksByTransitivity, 19.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3646occurred in iteration=18, InterpolantAutomatonStates: 730, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 19 MinimizatonAttempts, 14780 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 15.5s InterpolantComputationTime, 1982 NumberOfCodeBlocks, 1982 NumberOfCodeBlocksAsserted, 81 NumberOfCheckSat, 2706 ConstructedInterpolants, 0 QuantifiedInterpolants, 11110 SizeOfPredicates, 168 NumberOfNonLiveVariables, 2142 ConjunctsInSsa, 245 ConjunctsInUnsatCore, 42 InterpolantComputations, 8 PerfectInterpolantSequences, 3093/12536 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 07:09:18,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c3642-77c3-4f2b-8d0d-34ba28dcee8a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE