./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479514b8-875d-4ebe-aa11-269ff8f9f731/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479514b8-875d-4ebe-aa11-269ff8f9f731/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479514b8-875d-4ebe-aa11-269ff8f9f731/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479514b8-875d-4ebe-aa11-269ff8f9f731/bin/utaipan-ByfvJB40ur/config/TaipanReach.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_479514b8-875d-4ebe-aa11-269ff8f9f731/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479514b8-875d-4ebe-aa11-269ff8f9f731/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --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-38b53e6 [2022-11-25 22:27:26,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:27:26,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:27:26,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:27:26,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:27:26,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:27:26,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:27:26,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:27:26,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:27:26,647 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:27:26,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:27:26,650 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:27:26,651 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:27:26,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:27:26,655 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:27:26,658 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:27:26,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:27:26,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:27:26,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:27:26,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:27:26,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:27:26,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:27:26,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:27:26,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:27:26,685 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:27:26,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:27:26,686 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:27:26,688 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:27:26,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:27:26,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:27:26,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:27:26,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:27:26,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:27:26,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:27:26,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:27:26,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:27:26,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:27:26,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:27:26,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:27:26,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:27:26,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:27:26,702 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479514b8-875d-4ebe-aa11-269ff8f9f731/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 22:27:26,728 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:27:26,728 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:27:26,729 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:27:26,729 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:27:26,730 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:27:26,730 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:27:26,730 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:27:26,730 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:27:26,730 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:27:26,731 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:27:26,731 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:27:26,731 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:27:26,731 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:27:26,731 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:27:26,732 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:27:26,732 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:27:26,732 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:27:26,732 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:27:26,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:27:26,733 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:27:26,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:27:26,734 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:27:26,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:27:26,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:27:26,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:27:26,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:27:26,735 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:27:26,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:27:26,735 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:27:26,735 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:27:26,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:27:26,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:27:26,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:27:26,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:27:26,736 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:27:26,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:27:26,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:27:26,737 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:27:26,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:27:26,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:27:26,737 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:27:26,738 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_479514b8-875d-4ebe-aa11-269ff8f9f731/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479514b8-875d-4ebe-aa11-269ff8f9f731/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4017723c7e4b1f7c431c7e7a6ea6ca9df8ac56fc590cd03021a11577cb455eff [2022-11-25 22:27:26,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:27:27,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:27:27,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:27:27,007 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:27:27,008 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:27:27,009 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479514b8-875d-4ebe-aa11-269ff8f9f731/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i [2022-11-25 22:27:30,010 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:27:30,381 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:27:30,382 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479514b8-875d-4ebe-aa11-269ff8f9f731/sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i [2022-11-25 22:27:30,403 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479514b8-875d-4ebe-aa11-269ff8f9f731/bin/utaipan-ByfvJB40ur/data/549215748/2a4a377fe15840a29138cdd0d06a65b2/FLAG53d4e1e13 [2022-11-25 22:27:30,422 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479514b8-875d-4ebe-aa11-269ff8f9f731/bin/utaipan-ByfvJB40ur/data/549215748/2a4a377fe15840a29138cdd0d06a65b2 [2022-11-25 22:27:30,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:27:30,434 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:27:30,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:27:30,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:27:30,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:27:30,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:27:30" (1/1) ... [2022-11-25 22:27:30,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@198e8bb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:30, skipping insertion in model container [2022-11-25 22:27:30,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:27:30" (1/1) ... [2022-11-25 22:27:30,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:27:30,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:27:30,666 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_479514b8-875d-4ebe-aa11-269ff8f9f731/sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i[1086,1099] [2022-11-25 22:27:30,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:27:30,828 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:27:30,840 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_479514b8-875d-4ebe-aa11-269ff8f9f731/sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i[1086,1099] [2022-11-25 22:27:30,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:27:30,939 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:27:30,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:30 WrapperNode [2022-11-25 22:27:30,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:27:30,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:27:30,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:27:30,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:27:30,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:30" (1/1) ... [2022-11-25 22:27:30,957 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:30" (1/1) ... [2022-11-25 22:27:30,978 INFO L138 Inliner]: procedures = 162, calls = 24, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 76 [2022-11-25 22:27:30,978 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:27:30,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:27:30,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:27:30,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:27:30,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:30" (1/1) ... [2022-11-25 22:27:30,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:30" (1/1) ... [2022-11-25 22:27:30,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:30" (1/1) ... [2022-11-25 22:27:30,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:30" (1/1) ... [2022-11-25 22:27:30,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:30" (1/1) ... [2022-11-25 22:27:31,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:30" (1/1) ... [2022-11-25 22:27:31,001 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:30" (1/1) ... [2022-11-25 22:27:31,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:30" (1/1) ... [2022-11-25 22:27:31,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:27:31,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:27:31,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:27:31,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:27:31,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:30" (1/1) ... [2022-11-25 22:27:31,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:27:31,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479514b8-875d-4ebe-aa11-269ff8f9f731/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:27:31,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479514b8-875d-4ebe-aa11-269ff8f9f731/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:27:31,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479514b8-875d-4ebe-aa11-269ff8f9f731/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:27:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:27:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:27:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 22:27:31,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:27:31,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:27:31,100 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-25 22:27:31,100 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-25 22:27:31,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:27:31,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:27:31,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:27:31,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:27:31,102 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 22:27:31,219 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:27:31,221 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:27:31,372 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:27:31,381 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:27:31,392 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 22:27:31,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:27:31 BoogieIcfgContainer [2022-11-25 22:27:31,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:27:31,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:27:31,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:27:31,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:27:31,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:27:30" (1/3) ... [2022-11-25 22:27:31,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d9f01ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:27:31, skipping insertion in model container [2022-11-25 22:27:31,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:30" (2/3) ... [2022-11-25 22:27:31,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d9f01ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:27:31, skipping insertion in model container [2022-11-25 22:27:31,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:27:31" (3/3) ... [2022-11-25 22:27:31,404 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_25-struct_nr_true.i [2022-11-25 22:27:31,427 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 22:27:31,454 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:27:31,455 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-25 22:27:31,455 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 22:27:31,541 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-25 22:27:31,580 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 22:27:31,595 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 96 transitions, 200 flow [2022-11-25 22:27:31,598 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 96 transitions, 200 flow [2022-11-25 22:27:31,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 96 transitions, 200 flow [2022-11-25 22:27:31,685 INFO L130 PetriNetUnfolder]: 4/95 cut-off events. [2022-11-25 22:27:31,685 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 22:27:31,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 95 events. 4/95 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 81 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-11-25 22:27:31,693 INFO L119 LiptonReduction]: Number of co-enabled transitions 1320 [2022-11-25 22:27:34,739 INFO L134 LiptonReduction]: Checked pairs total: 2847 [2022-11-25 22:27:34,740 INFO L136 LiptonReduction]: Total number of compositions: 102 [2022-11-25 22:27:34,758 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 24 transitions, 56 flow [2022-11-25 22:27:34,787 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 78 states, 70 states have (on average 2.157142857142857) internal successors, (151), 77 states have internal predecessors, (151), 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) [2022-11-25 22:27:34,806 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:27:34,814 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@6edfb1ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:27:34,814 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-25 22:27:34,816 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 70 states have (on average 2.157142857142857) internal successors, (151), 77 states have internal predecessors, (151), 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) [2022-11-25 22:27:34,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-25 22:27:34,822 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:34,822 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-25 22:27:34,823 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 22:27:34,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:34,838 INFO L85 PathProgramCache]: Analyzing trace with hash 375, now seen corresponding path program 1 times [2022-11-25 22:27:34,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:34,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601147079] [2022-11-25 22:27:34,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:34,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:34,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:34,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:27:34,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:27:34,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601147079] [2022-11-25 22:27:34,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601147079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:27:34,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:27:34,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 22:27:34,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197597851] [2022-11-25 22:27:34,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:27:34,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:27:34,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:27:35,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:27:35,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:27:35,023 INFO L87 Difference]: Start difference. First operand has 78 states, 70 states have (on average 2.157142857142857) internal successors, (151), 77 states have internal predecessors, (151), 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) [2022-11-25 22:27:35,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:27:35,084 INFO L93 Difference]: Finished difference Result 77 states and 134 transitions. [2022-11-25 22:27:35,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:27:35,086 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 [2022-11-25 22:27:35,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:27:35,096 INFO L225 Difference]: With dead ends: 77 [2022-11-25 22:27:35,096 INFO L226 Difference]: Without dead ends: 71 [2022-11-25 22:27:35,097 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 [2022-11-25 22:27:35,102 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:27:35,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:27:35,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-25 22:27:35,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-11-25 22:27:35,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 66 states have (on average 1.8484848484848484) internal successors, (122), 70 states have internal predecessors, (122), 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) [2022-11-25 22:27:35,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 122 transitions. [2022-11-25 22:27:35,161 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 122 transitions. Word has length 1 [2022-11-25 22:27:35,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:27:35,162 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 122 transitions. [2022-11-25 22:27:35,163 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) [2022-11-25 22:27:35,164 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 122 transitions. [2022-11-25 22:27:35,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 22:27:35,165 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:35,165 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 22:27:35,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:27:35,166 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 22:27:35,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:35,167 INFO L85 PathProgramCache]: Analyzing trace with hash 11444788, now seen corresponding path program 1 times [2022-11-25 22:27:35,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:35,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776614125] [2022-11-25 22:27:35,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:35,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:35,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:27:35,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:27:35,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776614125] [2022-11-25 22:27:35,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776614125] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:27:35,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:27:35,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 22:27:35,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478789875] [2022-11-25 22:27:35,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:27:35,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:27:35,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:27:35,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:27:35,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:27:35,504 INFO L87 Difference]: Start difference. First operand 71 states and 122 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) [2022-11-25 22:27:35,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:27:35,559 INFO L93 Difference]: Finished difference Result 74 states and 127 transitions. [2022-11-25 22:27:35,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:27:35,560 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 [2022-11-25 22:27:35,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:27:35,561 INFO L225 Difference]: With dead ends: 74 [2022-11-25 22:27:35,561 INFO L226 Difference]: Without dead ends: 74 [2022-11-25 22:27:35,561 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 [2022-11-25 22:27:35,562 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:27:35,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:27:35,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-25 22:27:35,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 68. [2022-11-25 22:27:35,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 63 states have (on average 1.8412698412698412) internal successors, (116), 67 states have internal predecessors, (116), 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) [2022-11-25 22:27:35,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 116 transitions. [2022-11-25 22:27:35,571 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 116 transitions. Word has length 4 [2022-11-25 22:27:35,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:27:35,571 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 116 transitions. [2022-11-25 22:27:35,571 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) [2022-11-25 22:27:35,572 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 116 transitions. [2022-11-25 22:27:35,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 22:27:35,572 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:35,572 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 22:27:35,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:27:35,573 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 22:27:35,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:35,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1887082220, now seen corresponding path program 1 times [2022-11-25 22:27:35,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:35,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599832981] [2022-11-25 22:27:35,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:35,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:35,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:27:35,703 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:27:35,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599832981] [2022-11-25 22:27:35,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599832981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:27:35,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:27:35,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:27:35,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507145691] [2022-11-25 22:27:35,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:27:35,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:27:35,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:27:35,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:27:35,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:27:35,706 INFO L87 Difference]: Start difference. First operand 68 states and 116 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) [2022-11-25 22:27:35,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:27:35,824 INFO L93 Difference]: Finished difference Result 80 states and 129 transitions. [2022-11-25 22:27:35,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:27:35,825 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 [2022-11-25 22:27:35,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:27:35,827 INFO L225 Difference]: With dead ends: 80 [2022-11-25 22:27:35,827 INFO L226 Difference]: Without dead ends: 76 [2022-11-25 22:27:35,827 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 [2022-11-25 22:27:35,828 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 18 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:27:35,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 0 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:27:35,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-25 22:27:35,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 70. [2022-11-25 22:27:35,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 66 states have (on average 1.7424242424242424) internal successors, (115), 69 states have internal predecessors, (115), 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) [2022-11-25 22:27:35,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 115 transitions. [2022-11-25 22:27:35,836 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 115 transitions. Word has length 6 [2022-11-25 22:27:35,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:27:35,837 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 115 transitions. [2022-11-25 22:27:35,837 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) [2022-11-25 22:27:35,837 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 115 transitions. [2022-11-25 22:27:35,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 22:27:35,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:35,838 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 22:27:35,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 22:27:35,839 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 22:27:35,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:35,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1886453293, now seen corresponding path program 1 times [2022-11-25 22:27:35,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:35,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667867763] [2022-11-25 22:27:35,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:35,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:35,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:27:35,922 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:27:35,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667867763] [2022-11-25 22:27:35,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667867763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:27:35,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:27:35,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:27:35,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774567021] [2022-11-25 22:27:35,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:27:35,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:27:35,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:27:35,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:27:35,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:27:35,925 INFO L87 Difference]: Start difference. First operand 70 states and 115 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) [2022-11-25 22:27:35,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:27:35,974 INFO L93 Difference]: Finished difference Result 74 states and 117 transitions. [2022-11-25 22:27:35,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:27:35,977 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 [2022-11-25 22:27:35,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:27:35,978 INFO L225 Difference]: With dead ends: 74 [2022-11-25 22:27:35,978 INFO L226 Difference]: Without dead ends: 70 [2022-11-25 22:27:35,979 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 [2022-11-25 22:27:35,980 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:27:35,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:27:35,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-25 22:27:35,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2022-11-25 22:27:35,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 64 states have (on average 1.671875) internal successors, (107), 67 states have internal predecessors, (107), 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) [2022-11-25 22:27:35,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 107 transitions. [2022-11-25 22:27:35,987 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 107 transitions. Word has length 6 [2022-11-25 22:27:35,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:27:35,987 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 107 transitions. [2022-11-25 22:27:35,987 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) [2022-11-25 22:27:35,987 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 107 transitions. [2022-11-25 22:27:35,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 22:27:35,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:35,988 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:27:35,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 22:27:35,989 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 22:27:35,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:35,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1631234741, now seen corresponding path program 1 times [2022-11-25 22:27:35,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:35,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161497736] [2022-11-25 22:27:35,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:35,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:36,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:27:36,058 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:27:36,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161497736] [2022-11-25 22:27:36,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161497736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:27:36,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:27:36,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:27:36,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002706387] [2022-11-25 22:27:36,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:27:36,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:27:36,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:27:36,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:27:36,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:27:36,061 INFO L87 Difference]: Start difference. First operand 68 states and 107 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) [2022-11-25 22:27:36,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:27:36,083 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2022-11-25 22:27:36,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:27:36,084 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 [2022-11-25 22:27:36,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:27:36,085 INFO L225 Difference]: With dead ends: 22 [2022-11-25 22:27:36,085 INFO L226 Difference]: Without dead ends: 22 [2022-11-25 22:27:36,085 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 [2022-11-25 22:27:36,086 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:27:36,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 0 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:27:36,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-25 22:27:36,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-25 22:27:36,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.05) internal successors, (21), 21 states have internal predecessors, (21), 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) [2022-11-25 22:27:36,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2022-11-25 22:27:36,089 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 7 [2022-11-25 22:27:36,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:27:36,090 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2022-11-25 22:27:36,090 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) [2022-11-25 22:27:36,090 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2022-11-25 22:27:36,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 22:27:36,091 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:36,091 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:27:36,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 22:27:36,091 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 22:27:36,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:36,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1553623855, now seen corresponding path program 1 times [2022-11-25 22:27:36,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:36,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44937505] [2022-11-25 22:27:36,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:36,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:36,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:27:36,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:27:36,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44937505] [2022-11-25 22:27:36,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44937505] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:27:36,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:27:36,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:27:36,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818215674] [2022-11-25 22:27:36,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:27:36,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:27:36,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:27:36,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:27:36,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:27:36,307 INFO L87 Difference]: Start difference. First operand 22 states and 21 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) [2022-11-25 22:27:36,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:27:36,384 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2022-11-25 22:27:36,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:27:36,385 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 [2022-11-25 22:27:36,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:27:36,385 INFO L225 Difference]: With dead ends: 21 [2022-11-25 22:27:36,385 INFO L226 Difference]: Without dead ends: 13 [2022-11-25 22:27:36,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-25 22:27:36,393 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:27:36,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:27:36,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-25 22:27:36,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-25 22:27:36,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0) internal successors, (12), 12 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) [2022-11-25 22:27:36,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2022-11-25 22:27:36,399 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 11 [2022-11-25 22:27:36,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:27:36,399 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2022-11-25 22:27:36,400 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) [2022-11-25 22:27:36,400 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2022-11-25 22:27:36,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 22:27:36,400 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:36,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:27:36,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 22:27:36,401 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 22:27:36,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:36,402 INFO L85 PathProgramCache]: Analyzing trace with hash 671976062, now seen corresponding path program 1 times [2022-11-25 22:27:36,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:36,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345113523] [2022-11-25 22:27:36,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:36,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:36,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:27:36,598 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:27:36,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345113523] [2022-11-25 22:27:36,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345113523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:27:36,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:27:36,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:27:36,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714728139] [2022-11-25 22:27:36,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:27:36,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:27:36,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:27:36,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:27:36,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:27:36,601 INFO L87 Difference]: Start difference. First operand 13 states and 12 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) [2022-11-25 22:27:36,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:27:36,672 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2022-11-25 22:27:36,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:27:36,672 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 [2022-11-25 22:27:36,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:27:36,673 INFO L225 Difference]: With dead ends: 12 [2022-11-25 22:27:36,673 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 22:27:36,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-25 22:27:36,674 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:27:36,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:27:36,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 22:27:36,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 22:27:36,675 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) [2022-11-25 22:27:36,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 22:27:36,675 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2022-11-25 22:27:36,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:27:36,676 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 22:27:36,676 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) [2022-11-25 22:27:36,676 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 22:27:36,676 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 22:27:36,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-11-25 22:27:36,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-11-25 22:27:36,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-11-25 22:27:36,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2022-11-25 22:27:36,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2022-11-25 22:27:36,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-11-25 22:27:36,681 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-11-25 22:27:36,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 22:27:36,683 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:27:36,688 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 22:27:36,689 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:27:36,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:27:36 BasicIcfg [2022-11-25 22:27:36,691 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:27:36,692 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:27:36,692 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:27:36,692 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:27:36,693 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:27:31" (3/4) ... [2022-11-25 22:27:36,696 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 22:27:36,702 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-25 22:27:36,706 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-25 22:27:36,706 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 22:27:36,707 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 22:27:36,707 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 22:27:36,737 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479514b8-875d-4ebe-aa11-269ff8f9f731/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 22:27:36,737 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:27:36,738 INFO L158 Benchmark]: Toolchain (without parser) took 6306.34ms. Allocated memory was 127.9MB in the beginning and 163.6MB in the end (delta: 35.7MB). Free memory was 96.2MB in the beginning and 59.2MB in the end (delta: 37.0MB). Peak memory consumption was 73.1MB. Max. memory is 16.1GB. [2022-11-25 22:27:36,738 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 127.9MB. Free memory is still 69.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:27:36,738 INFO L158 Benchmark]: CACSL2BoogieTranslator took 501.57ms. Allocated memory is still 127.9MB. Free memory was 96.2MB in the beginning and 76.7MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 22:27:36,739 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.73ms. Allocated memory is still 127.9MB. Free memory was 76.7MB in the beginning and 74.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:27:36,739 INFO L158 Benchmark]: Boogie Preprocessor took 26.71ms. Allocated memory is still 127.9MB. Free memory was 74.7MB in the beginning and 73.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:27:36,739 INFO L158 Benchmark]: RCFGBuilder took 388.27ms. Allocated memory is still 127.9MB. Free memory was 73.1MB in the beginning and 60.0MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 22:27:36,740 INFO L158 Benchmark]: TraceAbstraction took 5294.26ms. Allocated memory was 127.9MB in the beginning and 163.6MB in the end (delta: 35.7MB). Free memory was 59.5MB in the beginning and 62.4MB in the end (delta: -2.8MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. [2022-11-25 22:27:36,740 INFO L158 Benchmark]: Witness Printer took 45.24ms. Allocated memory is still 163.6MB. Free memory was 62.4MB in the beginning and 59.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:27:36,742 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 127.9MB. Free memory is still 69.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 501.57ms. Allocated memory is still 127.9MB. Free memory was 96.2MB in the beginning and 76.7MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.73ms. Allocated memory is still 127.9MB. Free memory was 76.7MB in the beginning and 74.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.71ms. Allocated memory is still 127.9MB. Free memory was 74.7MB in the beginning and 73.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 388.27ms. Allocated memory is still 127.9MB. Free memory was 73.1MB in the beginning and 60.0MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5294.26ms. Allocated memory was 127.9MB in the beginning and 163.6MB in the end (delta: 35.7MB). Free memory was 59.5MB in the beginning and 62.4MB in the end (delta: -2.8MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. * Witness Printer took 45.24ms. Allocated memory is still 163.6MB. Free memory was 62.4MB in the beginning and 59.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.1s, 96 PlacesBefore, 26 PlacesAfterwards, 96 TransitionsBefore, 24 TransitionsAfterwards, 1320 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 102 TotalNumberOfCompositions, 2847 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1525, independent: 1366, independent conditional: 0, independent unconditional: 1366, dependent: 159, dependent conditional: 0, dependent unconditional: 159, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 987, independent: 948, independent conditional: 0, independent unconditional: 948, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 987, independent: 902, independent conditional: 0, independent unconditional: 902, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 85, independent: 46, independent conditional: 0, independent unconditional: 46, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 139, independent: 46, independent conditional: 0, independent unconditional: 46, dependent: 93, dependent conditional: 0, dependent unconditional: 93, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1525, independent: 418, independent conditional: 0, independent unconditional: 418, dependent: 120, dependent conditional: 0, dependent unconditional: 120, unknown: 987, unknown conditional: 0, unknown unconditional: 987] , Statistics on independence cache: Total cache size (in pairs): 79, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, 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]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 123 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 53 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 340 IncrementalHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 0 mSDtfsCounter, 340 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=0, InterpolantAutomatonStates: 30, 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, 7 MinimizatonAttempts, 14 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 188 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 22:27:36,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479514b8-875d-4ebe-aa11-269ff8f9f731/bin/utaipan-ByfvJB40ur/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