./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95f12774-30f0-4df0-a840-70893fb05d9c/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95f12774-30f0-4df0-a840-70893fb05d9c/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95f12774-30f0-4df0-a840-70893fb05d9c/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95f12774-30f0-4df0-a840-70893fb05d9c/bin/utaipan-g80aRyZoba/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95f12774-30f0-4df0-a840-70893fb05d9c/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95f12774-30f0-4df0-a840-70893fb05d9c/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --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 4017723c7e4b1f7c431c7e7a6ea6ca9df8ac56fc590cd03021a11577cb455eff --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:37:27,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:37:27,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:37:27,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:37:27,545 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:37:27,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:37:27,551 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:37:27,554 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:37:27,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:37:27,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:37:27,563 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:37:27,564 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:37:27,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:37:27,565 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:37:27,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:37:27,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:37:27,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:37:27,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:37:27,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:37:27,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:37:27,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:37:27,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:37:27,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:37:27,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:37:27,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:37:27,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:37:27,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:37:27,603 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:37:27,604 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:37:27,605 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:37:27,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:37:27,606 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:37:27,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:37:27,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:37:27,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:37:27,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:37:27,611 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:37:27,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:37:27,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:37:27,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:37:27,614 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:37:27,615 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95f12774-30f0-4df0-a840-70893fb05d9c/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-22 01:37:27,655 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:37:27,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:37:27,656 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:37:27,657 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:37:27,657 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:37:27,658 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:37:27,658 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:37:27,658 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:37:27,659 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:37:27,659 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:37:27,660 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:37:27,660 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:37:27,660 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:37:27,661 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:37:27,661 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:37:27,661 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:37:27,661 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:37:27,662 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:37:27,663 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-22 01:37:27,663 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-22 01:37:27,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:37:27,663 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:37:27,664 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:37:27,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:37:27,664 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:37:27,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:37:27,665 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-22 01:37:27,665 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-22 01:37:27,665 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-22 01:37:27,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:37:27,666 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:37:27,666 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:37:27,666 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:37:27,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:37:27,667 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:37:27,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:37:27,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:37:27,668 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:37:27,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:37:27,668 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:37:27,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:37:27,669 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:37:27,669 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_95f12774-30f0-4df0-a840-70893fb05d9c/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95f12774-30f0-4df0-a840-70893fb05d9c/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4017723c7e4b1f7c431c7e7a6ea6ca9df8ac56fc590cd03021a11577cb455eff [2022-11-22 01:37:27,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:37:28,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:37:28,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:37:28,010 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:37:28,011 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:37:28,012 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95f12774-30f0-4df0-a840-70893fb05d9c/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i [2022-11-22 01:37:31,155 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:37:31,494 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:37:31,504 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95f12774-30f0-4df0-a840-70893fb05d9c/sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i [2022-11-22 01:37:31,521 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95f12774-30f0-4df0-a840-70893fb05d9c/bin/utaipan-g80aRyZoba/data/1f737b712/8854000ea61f416391f0c7c2fe498cf8/FLAGd8cc74927 [2022-11-22 01:37:31,772 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95f12774-30f0-4df0-a840-70893fb05d9c/bin/utaipan-g80aRyZoba/data/1f737b712/8854000ea61f416391f0c7c2fe498cf8 [2022-11-22 01:37:31,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:37:31,776 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:37:31,781 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:37:31,781 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:37:31,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:37:31,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:37:31" (1/1) ... [2022-11-22 01:37:31,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2492655d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:31, skipping insertion in model container [2022-11-22 01:37:31,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:37:31" (1/1) ... [2022-11-22 01:37:31,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:37:31,830 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:37:31,999 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95f12774-30f0-4df0-a840-70893fb05d9c/sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i[1086,1099] [2022-11-22 01:37:32,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:37:32,234 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:37:32,254 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95f12774-30f0-4df0-a840-70893fb05d9c/sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i[1086,1099] [2022-11-22 01:37:32,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:37:32,360 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:37:32,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:32 WrapperNode [2022-11-22 01:37:32,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:37:32,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:37:32,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:37:32,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:37:32,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:32" (1/1) ... [2022-11-22 01:37:32,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:32" (1/1) ... [2022-11-22 01:37:32,425 INFO L138 Inliner]: procedures = 162, calls = 24, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 76 [2022-11-22 01:37:32,425 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:37:32,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:37:32,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:37:32,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:37:32,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:32" (1/1) ... [2022-11-22 01:37:32,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:32" (1/1) ... [2022-11-22 01:37:32,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:32" (1/1) ... [2022-11-22 01:37:32,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:32" (1/1) ... [2022-11-22 01:37:32,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:32" (1/1) ... [2022-11-22 01:37:32,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:32" (1/1) ... [2022-11-22 01:37:32,452 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:32" (1/1) ... [2022-11-22 01:37:32,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:32" (1/1) ... [2022-11-22 01:37:32,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:37:32,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:37:32,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:37:32,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:37:32,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:32" (1/1) ... [2022-11-22 01:37:32,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:37:32,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95f12774-30f0-4df0-a840-70893fb05d9c/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:37:32,504 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95f12774-30f0-4df0-a840-70893fb05d9c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:37:32,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95f12774-30f0-4df0-a840-70893fb05d9c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:37:32,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:37:32,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:37:32,547 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-22 01:37:32,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:37:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:37:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-22 01:37:32,548 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-22 01:37:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:37:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:37:32,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:37:32,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:37:32,552 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 01:37:32,688 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:37:32,691 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:37:32,953 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:37:32,961 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:37:32,983 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:37:32,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:37:32 BoogieIcfgContainer [2022-11-22 01:37:32,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:37:32,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:37:32,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:37:32,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:37:32,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:37:31" (1/3) ... [2022-11-22 01:37:33,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303c3f9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:37:32, skipping insertion in model container [2022-11-22 01:37:33,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:32" (2/3) ... [2022-11-22 01:37:33,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303c3f9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:37:33, skipping insertion in model container [2022-11-22 01:37:33,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:37:32" (3/3) ... [2022-11-22 01:37:33,002 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_25-struct_nr_true.i [2022-11-22 01:37:33,029 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:37:33,029 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-22 01:37:33,029 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 01:37:33,095 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-22 01:37:33,137 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 01:37:33,156 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 104 transitions, 216 flow [2022-11-22 01:37:33,160 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 104 transitions, 216 flow [2022-11-22 01:37:33,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 104 transitions, 216 flow [2022-11-22 01:37:33,256 INFO L130 PetriNetUnfolder]: 4/103 cut-off events. [2022-11-22 01:37:33,261 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-22 01:37:33,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 103 events. 4/103 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 99 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-11-22 01:37:33,271 INFO L119 LiptonReduction]: Number of co-enabled transitions 1440 [2022-11-22 01:37:37,793 INFO L134 LiptonReduction]: Checked pairs total: 3960 [2022-11-22 01:37:37,794 INFO L136 LiptonReduction]: Total number of compositions: 116 [2022-11-22 01:37:37,803 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 30 transitions, 68 flow [2022-11-22 01:37:37,828 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 106 states, 91 states have (on average 2.3736263736263736) internal successors, (216), 105 states have internal predecessors, (216), 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) [2022-11-22 01:37:37,848 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:37:37,855 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@1ff990f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:37:37,856 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-22 01:37:37,858 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 91 states have (on average 2.3736263736263736) internal successors, (216), 105 states have internal predecessors, (216), 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) [2022-11-22 01:37:37,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-22 01:37:37,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:37,865 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-22 01:37:37,866 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-22 01:37:37,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:37,872 INFO L85 PathProgramCache]: Analyzing trace with hash 399, now seen corresponding path program 1 times [2022-11-22 01:37:37,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:37,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944415003] [2022-11-22 01:37:37,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:37,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:38,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:37:38,005 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:38,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944415003] [2022-11-22 01:37:38,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944415003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:38,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:38,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-22 01:37:38,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944392488] [2022-11-22 01:37:38,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:38,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 01:37:38,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:38,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 01:37:38,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 01:37:38,042 INFO L87 Difference]: Start difference. First operand has 106 states, 91 states have (on average 2.3736263736263736) internal successors, (216), 105 states have internal predecessors, (216), 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 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-22 01:37:38,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:38,122 INFO L93 Difference]: Finished difference Result 103 states and 182 transitions. [2022-11-22 01:37:38,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 01:37:38,125 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-11-22 01:37:38,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:38,147 INFO L225 Difference]: With dead ends: 103 [2022-11-22 01:37:38,147 INFO L226 Difference]: Without dead ends: 103 [2022-11-22 01:37:38,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 01:37:38,158 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:38,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:37:38,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-22 01:37:38,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2022-11-22 01:37:38,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 91 states have (on average 2.0) internal successors, (182), 102 states have internal predecessors, (182), 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) [2022-11-22 01:37:38,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 182 transitions. [2022-11-22 01:37:38,223 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 182 transitions. Word has length 1 [2022-11-22 01:37:38,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:38,224 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 182 transitions. [2022-11-22 01:37:38,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-22 01:37:38,225 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 182 transitions. [2022-11-22 01:37:38,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 01:37:38,225 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:38,226 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 01:37:38,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:37:38,226 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-22 01:37:38,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:38,228 INFO L85 PathProgramCache]: Analyzing trace with hash 12294956, now seen corresponding path program 1 times [2022-11-22 01:37:38,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:38,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533512628] [2022-11-22 01:37:38,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:38,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:38,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:37:38,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:38,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533512628] [2022-11-22 01:37:38,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533512628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:38,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:38,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:37:38,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636302557] [2022-11-22 01:37:38,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:38,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:37:38,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:38,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:37:38,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:37:38,675 INFO L87 Difference]: Start difference. First operand 103 states and 182 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:38,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:38,764 INFO L93 Difference]: Finished difference Result 108 states and 191 transitions. [2022-11-22 01:37:38,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:37:38,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-22 01:37:38,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:38,766 INFO L225 Difference]: With dead ends: 108 [2022-11-22 01:37:38,767 INFO L226 Difference]: Without dead ends: 108 [2022-11-22 01:37:38,767 INFO L412 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 [2022-11-22 01:37:38,768 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:38,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:37:38,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-11-22 01:37:38,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 100. [2022-11-22 01:37:38,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 88 states have (on average 2.0) internal successors, (176), 99 states have internal predecessors, (176), 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) [2022-11-22 01:37:38,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 176 transitions. [2022-11-22 01:37:38,779 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 176 transitions. Word has length 4 [2022-11-22 01:37:38,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:38,780 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 176 transitions. [2022-11-22 01:37:38,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:38,780 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 176 transitions. [2022-11-22 01:37:38,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 01:37:38,781 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:38,781 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 01:37:38,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:37:38,782 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-22 01:37:38,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:38,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1069446510, now seen corresponding path program 1 times [2022-11-22 01:37:38,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:38,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570823479] [2022-11-22 01:37:38,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:38,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:38,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:37:38,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:38,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570823479] [2022-11-22 01:37:38,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570823479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:38,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:38,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:37:38,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842345826] [2022-11-22 01:37:38,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:38,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:37:38,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:38,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:37:38,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:37:38,867 INFO L87 Difference]: Start difference. First operand 100 states and 176 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-22 01:37:38,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:38,963 INFO L93 Difference]: Finished difference Result 113 states and 200 transitions. [2022-11-22 01:37:38,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:37:38,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-11-22 01:37:38,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:38,965 INFO L225 Difference]: With dead ends: 113 [2022-11-22 01:37:38,965 INFO L226 Difference]: Without dead ends: 113 [2022-11-22 01:37:38,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:37:38,967 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:38,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:37:38,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-11-22 01:37:38,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 105. [2022-11-22 01:37:38,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 93 states have (on average 1.989247311827957) internal successors, (185), 104 states have internal predecessors, (185), 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) [2022-11-22 01:37:38,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 185 transitions. [2022-11-22 01:37:38,978 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 185 transitions. Word has length 6 [2022-11-22 01:37:38,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:38,978 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 185 transitions. [2022-11-22 01:37:38,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-22 01:37:38,978 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 185 transitions. [2022-11-22 01:37:38,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 01:37:38,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:38,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 01:37:38,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:37:38,980 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-22 01:37:38,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:38,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1069493442, now seen corresponding path program 1 times [2022-11-22 01:37:38,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:38,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763549675] [2022-11-22 01:37:38,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:38,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:39,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:37:39,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:39,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763549675] [2022-11-22 01:37:39,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763549675] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:39,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:39,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:37:39,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587749330] [2022-11-22 01:37:39,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:39,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:37:39,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:39,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:37:39,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:37:39,158 INFO L87 Difference]: Start difference. First operand 105 states and 185 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-11-22 01:37:39,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:39,313 INFO L93 Difference]: Finished difference Result 124 states and 215 transitions. [2022-11-22 01:37:39,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:37:39,314 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2022-11-22 01:37:39,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:39,316 INFO L225 Difference]: With dead ends: 124 [2022-11-22 01:37:39,316 INFO L226 Difference]: Without dead ends: 124 [2022-11-22 01:37:39,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:37:39,318 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 19 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:39,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 2 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:37:39,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-11-22 01:37:39,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 110. [2022-11-22 01:37:39,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 99 states have (on average 1.9191919191919191) internal successors, (190), 109 states have internal predecessors, (190), 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) [2022-11-22 01:37:39,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 190 transitions. [2022-11-22 01:37:39,329 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 190 transitions. Word has length 6 [2022-11-22 01:37:39,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:39,329 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 190 transitions. [2022-11-22 01:37:39,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-11-22 01:37:39,330 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 190 transitions. [2022-11-22 01:37:39,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 01:37:39,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:39,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:37:39,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:37:39,331 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-22 01:37:39,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:39,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1206247960, now seen corresponding path program 1 times [2022-11-22 01:37:39,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:39,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446090181] [2022-11-22 01:37:39,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:39,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:39,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:37:39,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:39,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446090181] [2022-11-22 01:37:39,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446090181] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:39,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:39,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:37:39,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599221820] [2022-11-22 01:37:39,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:39,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:37:39,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:39,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:37:39,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:37:39,456 INFO L87 Difference]: Start difference. First operand 110 states and 190 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-22 01:37:39,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:39,498 INFO L93 Difference]: Finished difference Result 48 states and 50 transitions. [2022-11-22 01:37:39,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:37:39,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-11-22 01:37:39,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:39,499 INFO L225 Difference]: With dead ends: 48 [2022-11-22 01:37:39,500 INFO L226 Difference]: Without dead ends: 48 [2022-11-22 01:37:39,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:37:39,501 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:39,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:37:39,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-22 01:37:39,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-11-22 01:37:39,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 41 states have (on average 1.2195121951219512) internal successors, (50), 47 states have internal predecessors, (50), 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) [2022-11-22 01:37:39,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2022-11-22 01:37:39,511 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 7 [2022-11-22 01:37:39,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:39,511 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2022-11-22 01:37:39,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-22 01:37:39,512 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2022-11-22 01:37:39,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 01:37:39,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:39,514 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:37:39,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:37:39,514 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-22 01:37:39,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:39,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1213666539, now seen corresponding path program 1 times [2022-11-22 01:37:39,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:39,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917695208] [2022-11-22 01:37:39,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:39,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:39,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:37:39,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:39,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917695208] [2022-11-22 01:37:39,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917695208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:39,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:39,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:37:39,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73391842] [2022-11-22 01:37:39,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:39,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:37:39,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:39,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:37:39,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:37:39,608 INFO L87 Difference]: Start difference. First operand 48 states and 50 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-22 01:37:39,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:39,635 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2022-11-22 01:37:39,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:37:39,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2022-11-22 01:37:39,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:39,637 INFO L225 Difference]: With dead ends: 40 [2022-11-22 01:37:39,637 INFO L226 Difference]: Without dead ends: 40 [2022-11-22 01:37:39,640 INFO L412 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 [2022-11-22 01:37:39,646 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:39,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:37:39,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-22 01:37:39,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-11-22 01:37:39,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 39 states have internal predecessors, (41), 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) [2022-11-22 01:37:39,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2022-11-22 01:37:39,655 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 9 [2022-11-22 01:37:39,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:39,655 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2022-11-22 01:37:39,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-22 01:37:39,656 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2022-11-22 01:37:39,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 01:37:39,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:39,657 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:37:39,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:37:39,659 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-22 01:37:39,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:39,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1213666538, now seen corresponding path program 1 times [2022-11-22 01:37:39,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:39,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535959205] [2022-11-22 01:37:39,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:39,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:39,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:37:39,791 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:39,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535959205] [2022-11-22 01:37:39,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535959205] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:39,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:39,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:37:39,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87023371] [2022-11-22 01:37:39,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:39,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:37:39,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:39,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:37:39,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:37:39,794 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-22 01:37:39,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:39,821 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2022-11-22 01:37:39,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:37:39,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2022-11-22 01:37:39,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:39,823 INFO L225 Difference]: With dead ends: 32 [2022-11-22 01:37:39,823 INFO L226 Difference]: Without dead ends: 32 [2022-11-22 01:37:39,824 INFO L412 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 [2022-11-22 01:37:39,825 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:39,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:37:39,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-22 01:37:39,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-11-22 01:37:39,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 29 states have (on average 1.103448275862069) internal successors, (32), 31 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:39,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2022-11-22 01:37:39,832 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 9 [2022-11-22 01:37:39,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:39,833 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2022-11-22 01:37:39,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-22 01:37:39,833 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2022-11-22 01:37:39,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 01:37:39,834 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:39,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:37:39,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:37:39,834 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-22 01:37:39,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:39,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1897570065, now seen corresponding path program 1 times [2022-11-22 01:37:39,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:39,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001254099] [2022-11-22 01:37:39,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:39,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:40,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:37:40,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:40,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001254099] [2022-11-22 01:37:40,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001254099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:40,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:40,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:37:40,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087184169] [2022-11-22 01:37:40,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:40,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:37:40,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:40,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:37:40,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:37:40,105 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2022-11-22 01:37:40,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:40,205 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2022-11-22 01:37:40,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:37:40,206 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 11 [2022-11-22 01:37:40,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:40,207 INFO L225 Difference]: With dead ends: 31 [2022-11-22 01:37:40,207 INFO L226 Difference]: Without dead ends: 31 [2022-11-22 01:37:40,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:37:40,208 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:40,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:37:40,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-22 01:37:40,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-22 01:37:40,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 30 states have internal predecessors, (31), 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) [2022-11-22 01:37:40,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2022-11-22 01:37:40,210 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 11 [2022-11-22 01:37:40,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:40,210 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2022-11-22 01:37:40,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2022-11-22 01:37:40,211 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2022-11-22 01:37:40,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 01:37:40,211 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:40,211 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:37:40,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:37:40,212 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-22 01:37:40,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:40,212 INFO L85 PathProgramCache]: Analyzing trace with hash -801031223, now seen corresponding path program 1 times [2022-11-22 01:37:40,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:40,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134723259] [2022-11-22 01:37:40,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:40,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:40,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:40,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:37:40,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:40,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134723259] [2022-11-22 01:37:40,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134723259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:40,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:40,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:37:40,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007058584] [2022-11-22 01:37:40,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:40,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:37:40,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:40,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:37:40,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:37:40,446 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-11-22 01:37:40,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:40,579 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2022-11-22 01:37:40,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 01:37:40,579 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 12 [2022-11-22 01:37:40,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:40,580 INFO L225 Difference]: With dead ends: 33 [2022-11-22 01:37:40,580 INFO L226 Difference]: Without dead ends: 33 [2022-11-22 01:37:40,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:37:40,581 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 17 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:40,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 5 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:37:40,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-22 01:37:40,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2022-11-22 01:37:40,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 29 states have internal predecessors, (30), 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) [2022-11-22 01:37:40,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2022-11-22 01:37:40,583 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 12 [2022-11-22 01:37:40,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:40,584 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2022-11-22 01:37:40,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-11-22 01:37:40,584 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2022-11-22 01:37:40,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-22 01:37:40,584 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:40,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:37:40,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 01:37:40,585 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-22 01:37:40,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:40,585 INFO L85 PathProgramCache]: Analyzing trace with hash -968045249, now seen corresponding path program 1 times [2022-11-22 01:37:40,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:40,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062055051] [2022-11-22 01:37:40,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:40,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:40,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:37:40,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:40,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062055051] [2022-11-22 01:37:40,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062055051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:40,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:40,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:37:40,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444892318] [2022-11-22 01:37:40,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:40,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:37:40,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:40,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:37:40,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:37:40,742 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:40,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:40,762 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2022-11-22 01:37:40,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:37:40,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-22 01:37:40,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:40,763 INFO L225 Difference]: With dead ends: 29 [2022-11-22 01:37:40,764 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 01:37:40,764 INFO L412 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 [2022-11-22 01:37:40,765 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:40,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:37:40,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 01:37:40,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 01:37:40,766 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) [2022-11-22 01:37:40,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 01:37:40,766 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-11-22 01:37:40,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:40,766 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 01:37:40,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:40,767 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 01:37:40,767 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 01:37:40,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (11 of 12 remaining) [2022-11-22 01:37:40,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 12 remaining) [2022-11-22 01:37:40,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 12 remaining) [2022-11-22 01:37:40,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (8 of 12 remaining) [2022-11-22 01:37:40,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 12 remaining) [2022-11-22 01:37:40,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 12 remaining) [2022-11-22 01:37:40,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (5 of 12 remaining) [2022-11-22 01:37:40,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2022-11-22 01:37:40,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 12 remaining) [2022-11-22 01:37:40,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 12 remaining) [2022-11-22 01:37:40,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 12 remaining) [2022-11-22 01:37:40,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 12 remaining) [2022-11-22 01:37:40,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 01:37:40,775 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:37:40,780 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 01:37:40,780 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:37:40,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:37:40 BasicIcfg [2022-11-22 01:37:40,783 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:37:40,784 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:37:40,784 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:37:40,784 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:37:40,784 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:37:32" (3/4) ... [2022-11-22 01:37:40,788 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 01:37:40,794 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-22 01:37:40,798 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-22 01:37:40,799 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-22 01:37:40,799 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-22 01:37:40,799 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 01:37:40,830 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95f12774-30f0-4df0-a840-70893fb05d9c/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:37:40,830 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:37:40,831 INFO L158 Benchmark]: Toolchain (without parser) took 9054.50ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 138.5MB in the beginning and 91.8MB in the end (delta: 46.7MB). Peak memory consumption was 85.5MB. Max. memory is 16.1GB. [2022-11-22 01:37:40,831 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:37:40,831 INFO L158 Benchmark]: CACSL2BoogieTranslator took 580.43ms. Allocated memory is still 174.1MB. Free memory was 137.8MB in the beginning and 119.6MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-22 01:37:40,832 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.11ms. Allocated memory is still 174.1MB. Free memory was 118.9MB in the beginning and 117.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:37:40,832 INFO L158 Benchmark]: Boogie Preprocessor took 30.20ms. Allocated memory is still 174.1MB. Free memory was 117.5MB in the beginning and 115.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:37:40,832 INFO L158 Benchmark]: RCFGBuilder took 526.45ms. Allocated memory is still 174.1MB. Free memory was 115.5MB in the beginning and 101.5MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-22 01:37:40,833 INFO L158 Benchmark]: TraceAbstraction took 7793.96ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 100.8MB in the beginning and 94.9MB in the end (delta: 5.9MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. [2022-11-22 01:37:40,833 INFO L158 Benchmark]: Witness Printer took 46.68ms. Allocated memory is still 209.7MB. Free memory was 94.9MB in the beginning and 91.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 01:37:40,835 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 580.43ms. Allocated memory is still 174.1MB. Free memory was 137.8MB in the beginning and 119.6MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.11ms. Allocated memory is still 174.1MB. Free memory was 118.9MB in the beginning and 117.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.20ms. Allocated memory is still 174.1MB. Free memory was 117.5MB in the beginning and 115.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 526.45ms. Allocated memory is still 174.1MB. Free memory was 115.5MB in the beginning and 101.5MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7793.96ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 100.8MB in the beginning and 94.9MB in the end (delta: 5.9MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. * Witness Printer took 46.68ms. Allocated memory is still 209.7MB. Free memory was 94.9MB in the beginning and 91.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.6s, 104 PlacesBefore, 31 PlacesAfterwards, 104 TransitionsBefore, 30 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 9 FixpointIterations, 53 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 12 ConcurrentYvCompositions, 1 ChoiceCompositions, 116 TotalNumberOfCompositions, 3960 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2096, independent: 1877, independent conditional: 0, independent unconditional: 1877, dependent: 219, dependent conditional: 0, dependent unconditional: 219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1164, independent: 1116, independent conditional: 0, independent unconditional: 1116, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1164, independent: 1064, independent conditional: 0, independent unconditional: 1064, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 100, independent: 52, independent conditional: 0, independent unconditional: 52, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 228, independent: 73, independent conditional: 0, independent unconditional: 73, dependent: 155, dependent conditional: 0, dependent unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2096, independent: 761, independent conditional: 0, independent unconditional: 761, dependent: 171, dependent conditional: 0, dependent unconditional: 171, unknown: 1164, unknown conditional: 0, unknown unconditional: 1164] , Statistics on independence cache: Total cache size (in pairs): 120, Positive cache size: 97, Positive conditional cache size: 0, Positive unconditional cache size: 97, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 697]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 19]: 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 3 procedures, 131 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 7.6s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 90 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 90 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 503 IncrementalHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 12 mSDtfsCounter, 503 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=4, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 33 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 436 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-22 01:37:40,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95f12774-30f0-4df0-a840-70893fb05d9c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE