./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a841fc-e16d-4088-a8ee-49118bf498d3/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a841fc-e16d-4088-a8ee-49118bf498d3/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a841fc-e16d-4088-a8ee-49118bf498d3/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a841fc-e16d-4088-a8ee-49118bf498d3/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a841fc-e16d-4088-a8ee-49118bf498d3/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a841fc-e16d-4088-a8ee-49118bf498d3/bin/utaipan-TEXQjIfE4P --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 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:13:37,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:13:37,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:13:37,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:13:37,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:13:37,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:13:37,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:13:37,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:13:37,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:13:37,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:13:37,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:13:37,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:13:37,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:13:37,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:13:37,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:13:37,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:13:37,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:13:37,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:13:37,895 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:13:37,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:13:37,909 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:13:37,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:13:37,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:13:37,916 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:13:37,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:13:37,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:13:37,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:13:37,930 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:13:37,931 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:13:37,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:13:37,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:13:37,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:13:37,937 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:13:37,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:13:37,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:13:37,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:13:37,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:13:37,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:13:37,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:13:37,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:13:37,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:13:37,945 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a841fc-e16d-4088-a8ee-49118bf498d3/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:13:38,004 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:13:38,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:13:38,007 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:13:38,008 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:13:38,009 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:13:38,016 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:13:38,017 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:13:38,017 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:13:38,018 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:13:38,018 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:13:38,019 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:13:38,019 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:13:38,020 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:13:38,020 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:13:38,020 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:13:38,021 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:13:38,021 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:13:38,021 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:13:38,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:13:38,022 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:13:38,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:13:38,023 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:13:38,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:13:38,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:13:38,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:13:38,024 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:13:38,026 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:13:38,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:13:38,026 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:13:38,027 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:13:38,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:13:38,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:13:38,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:13:38,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:13:38,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:13:38,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:13:38,029 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:13:38,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:13:38,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:13:38,030 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:13:38,030 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:13:38,030 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a841fc-e16d-4088-a8ee-49118bf498d3/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a841fc-e16d-4088-a8ee-49118bf498d3/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 [2021-11-21 01:13:38,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:13:38,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:13:38,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:13:38,354 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:13:38,355 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:13:38,356 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a841fc-e16d-4088-a8ee-49118bf498d3/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2021-11-21 01:13:38,446 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a841fc-e16d-4088-a8ee-49118bf498d3/bin/utaipan-TEXQjIfE4P/data/185fa1b31/e247653f4fac46a48a4943253ba96040/FLAG4f0d4e4d6 [2021-11-21 01:13:39,009 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:13:39,010 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a841fc-e16d-4088-a8ee-49118bf498d3/sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2021-11-21 01:13:39,024 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a841fc-e16d-4088-a8ee-49118bf498d3/bin/utaipan-TEXQjIfE4P/data/185fa1b31/e247653f4fac46a48a4943253ba96040/FLAG4f0d4e4d6 [2021-11-21 01:13:39,363 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a841fc-e16d-4088-a8ee-49118bf498d3/bin/utaipan-TEXQjIfE4P/data/185fa1b31/e247653f4fac46a48a4943253ba96040 [2021-11-21 01:13:39,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:13:39,368 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:13:39,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:13:39,377 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:13:39,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:13:39,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:13:39" (1/1) ... [2021-11-21 01:13:39,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1653862d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:13:39, skipping insertion in model container [2021-11-21 01:13:39,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:13:39" (1/1) ... [2021-11-21 01:13:39,397 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:13:39,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:13:39,649 WARN L230 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_45a841fc-e16d-4088-a8ee-49118bf498d3/sv-benchmarks/c/weaver/parallel-barrier.wvr.c[4722,4735] [2021-11-21 01:13:39,653 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:13:39,663 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:13:39,704 WARN L230 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_45a841fc-e16d-4088-a8ee-49118bf498d3/sv-benchmarks/c/weaver/parallel-barrier.wvr.c[4722,4735] [2021-11-21 01:13:39,705 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:13:39,728 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:13:39,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:13:39 WrapperNode [2021-11-21 01:13:39,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:13:39,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:13:39,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:13:39,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:13:39,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:13:39" (1/1) ... [2021-11-21 01:13:39,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:13:39" (1/1) ... [2021-11-21 01:13:39,835 INFO L137 Inliner]: procedures = 25, calls = 98, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 253 [2021-11-21 01:13:39,837 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:13:39,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:13:39,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:13:39,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:13:39,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:13:39" (1/1) ... [2021-11-21 01:13:39,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:13:39" (1/1) ... [2021-11-21 01:13:39,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:13:39" (1/1) ... [2021-11-21 01:13:39,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:13:39" (1/1) ... [2021-11-21 01:13:39,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:13:39" (1/1) ... [2021-11-21 01:13:39,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:13:39" (1/1) ... [2021-11-21 01:13:39,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:13:39" (1/1) ... [2021-11-21 01:13:39,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:13:39,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:13:39,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:13:39,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:13:39,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:13:39" (1/1) ... [2021-11-21 01:13:39,927 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:13:39,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a841fc-e16d-4088-a8ee-49118bf498d3/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:13:39,962 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a841fc-e16d-4088-a8ee-49118bf498d3/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:13:39,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a841fc-e16d-4088-a8ee-49118bf498d3/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:13:40,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:13:40,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:13:40,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:13:40,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:13:40,019 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-21 01:13:40,019 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-21 01:13:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-21 01:13:40,020 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-21 01:13:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-21 01:13:40,020 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-21 01:13:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-11-21 01:13:40,021 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-11-21 01:13:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:13:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-11-21 01:13:40,021 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-11-21 01:13:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-11-21 01:13:40,022 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-11-21 01:13:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-21 01:13:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-21 01:13:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:13:40,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:13:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:13:40,025 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-21 01:13:40,166 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:13:40,169 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:13:40,636 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:13:40,733 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:13:40,736 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-21 01:13:40,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:13:40 BoogieIcfgContainer [2021-11-21 01:13:40,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:13:40,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:13:40,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:13:40,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:13:40,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:13:39" (1/3) ... [2021-11-21 01:13:40,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d5744d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:13:40, skipping insertion in model container [2021-11-21 01:13:40,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:13:39" (2/3) ... [2021-11-21 01:13:40,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d5744d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:13:40, skipping insertion in model container [2021-11-21 01:13:40,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:13:40" (3/3) ... [2021-11-21 01:13:40,768 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2021-11-21 01:13:40,775 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-21 01:13:40,775 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:13:40,776 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:13:40,776 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-21 01:13:40,866 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,867 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,867 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,867 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,868 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,868 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,868 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,868 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,870 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,870 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,870 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,870 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,870 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,871 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,871 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,872 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,872 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,872 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,873 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,873 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,873 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,873 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,873 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,874 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,874 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,874 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,875 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,875 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,875 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,876 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,876 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,876 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,876 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,877 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,877 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,877 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,878 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,878 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,878 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,878 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,880 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,880 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,880 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,880 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,881 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,881 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,882 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,883 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,883 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,884 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,884 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,884 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,884 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,884 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,886 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,886 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,886 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,886 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,905 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,906 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,906 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,906 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,907 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,907 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,907 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,908 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,908 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,908 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,908 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,909 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,909 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,909 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,910 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,910 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,911 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,911 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,911 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,911 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,912 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,912 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,913 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,913 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,913 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,914 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,914 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,914 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,914 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,915 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,916 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,916 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,916 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,916 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,917 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,917 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,917 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,917 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,918 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,933 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,933 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,933 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,933 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,934 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,934 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,934 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,934 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,934 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,935 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,935 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,935 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,935 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,936 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,936 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,936 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,936 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,936 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,937 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,937 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,937 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,937 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~nondet8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,937 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~nondet8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,938 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,938 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,938 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,938 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,939 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,939 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,939 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,939 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,939 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,940 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,940 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,940 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,941 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,941 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,941 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,941 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,944 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,944 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,944 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,945 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,945 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,945 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,945 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,945 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,946 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,946 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,946 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,946 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,947 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,947 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,947 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,947 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,948 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,948 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,948 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,948 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,949 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,949 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,949 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,949 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,949 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,950 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,950 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,950 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,951 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,951 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,952 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,952 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,952 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,952 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,953 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,953 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,953 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,954 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,954 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,954 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,955 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,955 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,955 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,955 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,965 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,966 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,966 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,966 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,968 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,968 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,968 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,968 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,978 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,978 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,979 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,980 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,980 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,981 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,981 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,981 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,981 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,988 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,989 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,989 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,990 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,990 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,991 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,991 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,992 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,992 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,993 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,993 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,993 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,993 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,994 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,994 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,994 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~nondet8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,995 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,995 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,995 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,995 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,996 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,997 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,997 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,998 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:40,998 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:41,007 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:41,007 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:41,007 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:41,008 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:41,008 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:41,009 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:41,010 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:41,011 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:41,025 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:41,025 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:41,026 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:41,026 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:41,027 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:41,027 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:41,027 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:41,027 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:13:41,040 INFO L148 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2021-11-21 01:13:41,126 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:13:41,139 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:13:41,139 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-21 01:13:41,169 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-21 01:13:41,198 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 246 places, 235 transitions, 542 flow [2021-11-21 01:13:41,206 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 246 places, 235 transitions, 542 flow [2021-11-21 01:13:41,209 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 246 places, 235 transitions, 542 flow [2021-11-21 01:13:41,332 INFO L129 PetriNetUnfolder]: 8/207 cut-off events. [2021-11-21 01:13:41,333 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-11-21 01:13:41,340 INFO L84 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 207 events. 8/207 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 243 event pairs, 0 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 177. Up to 3 conditions per place. [2021-11-21 01:13:41,350 INFO L116 LiptonReduction]: Number of co-enabled transitions 7736 [2021-11-21 01:13:47,876 INFO L131 LiptonReduction]: Checked pairs total: 43925 [2021-11-21 01:13:47,876 INFO L133 LiptonReduction]: Total number of compositions: 169 [2021-11-21 01:13:47,895 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 86 transitions, 244 flow [2021-11-21 01:13:49,050 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 18624 states, 18623 states have (on average 4.349943618106642) internal successors, (81009), 18623 states have internal predecessors, (81009), 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) [2021-11-21 01:13:49,190 INFO L276 IsEmpty]: Start isEmpty. Operand has 18624 states, 18623 states have (on average 4.349943618106642) internal successors, (81009), 18623 states have internal predecessors, (81009), 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) [2021-11-21 01:13:49,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-21 01:13:49,413 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:13:49,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:13:49,414 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:13:49,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:13:49,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1047608425, now seen corresponding path program 1 times [2021-11-21 01:13:49,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:13:49,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395777172] [2021-11-21 01:13:49,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:13:49,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:13:49,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:13:49,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:13:49,624 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:13:49,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395777172] [2021-11-21 01:13:49,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395777172] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:13:49,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:13:49,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:13:49,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466164225] [2021-11-21 01:13:49,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:13:49,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:13:49,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:13:49,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:13:49,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:13:49,710 INFO L87 Difference]: Start difference. First operand has 18624 states, 18623 states have (on average 4.349943618106642) internal successors, (81009), 18623 states have internal predecessors, (81009), 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, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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) [2021-11-21 01:13:50,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:13:50,684 INFO L93 Difference]: Finished difference Result 18624 states and 80623 transitions. [2021-11-21 01:13:50,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:13:50,687 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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 55 [2021-11-21 01:13:50,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:13:51,139 INFO L225 Difference]: With dead ends: 18624 [2021-11-21 01:13:51,139 INFO L226 Difference]: Without dead ends: 18624 [2021-11-21 01:13:51,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:13:51,145 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:13:51,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:13:51,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18624 states. [2021-11-21 01:13:52,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18624 to 18624. [2021-11-21 01:13:52,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18624 states, 18623 states have (on average 4.329216560167535) internal successors, (80623), 18623 states have internal predecessors, (80623), 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) [2021-11-21 01:13:53,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18624 states to 18624 states and 80623 transitions. [2021-11-21 01:13:53,212 INFO L78 Accepts]: Start accepts. Automaton has 18624 states and 80623 transitions. Word has length 55 [2021-11-21 01:13:53,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:13:53,213 INFO L470 AbstractCegarLoop]: Abstraction has 18624 states and 80623 transitions. [2021-11-21 01:13:53,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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) [2021-11-21 01:13:53,215 INFO L276 IsEmpty]: Start isEmpty. Operand 18624 states and 80623 transitions. [2021-11-21 01:13:53,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:13:53,405 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:13:53,406 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:13:53,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:13:53,406 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:13:53,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:13:53,412 INFO L85 PathProgramCache]: Analyzing trace with hash 883482519, now seen corresponding path program 1 times [2021-11-21 01:13:53,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:13:53,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388060346] [2021-11-21 01:13:53,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:13:53,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:13:53,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:13:54,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:13:54,079 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:13:54,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388060346] [2021-11-21 01:13:54,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388060346] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:13:54,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:13:54,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:13:54,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551587317] [2021-11-21 01:13:54,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:13:54,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:13:54,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:13:54,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:13:54,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:13:54,097 INFO L87 Difference]: Start difference. First operand 18624 states and 80623 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2021-11-21 01:13:54,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:13:54,852 INFO L93 Difference]: Finished difference Result 17072 states and 73007 transitions. [2021-11-21 01:13:54,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:13:54,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 63 [2021-11-21 01:13:54,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:13:55,198 INFO L225 Difference]: With dead ends: 17072 [2021-11-21 01:13:55,198 INFO L226 Difference]: Without dead ends: 17072 [2021-11-21 01:13:55,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:13:55,200 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 76 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:13:55,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 77 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 01:13:55,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17072 states. [2021-11-21 01:13:56,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17072 to 17072. [2021-11-21 01:13:56,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17072 states, 17071 states have (on average 4.276668033507117) internal successors, (73007), 17071 states have internal predecessors, (73007), 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) [2021-11-21 01:13:56,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17072 states to 17072 states and 73007 transitions. [2021-11-21 01:13:56,329 INFO L78 Accepts]: Start accepts. Automaton has 17072 states and 73007 transitions. Word has length 63 [2021-11-21 01:13:56,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:13:56,332 INFO L470 AbstractCegarLoop]: Abstraction has 17072 states and 73007 transitions. [2021-11-21 01:13:56,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2021-11-21 01:13:56,333 INFO L276 IsEmpty]: Start isEmpty. Operand 17072 states and 73007 transitions. [2021-11-21 01:13:56,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:13:56,655 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:13:56,655 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:13:56,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:13:56,656 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:13:56,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:13:56,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1245425439, now seen corresponding path program 2 times [2021-11-21 01:13:56,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:13:56,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236628766] [2021-11-21 01:13:56,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:13:56,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:13:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:13:57,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:13:57,604 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:13:57,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236628766] [2021-11-21 01:13:57,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236628766] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:13:57,605 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:13:57,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-21 01:13:57,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466697229] [2021-11-21 01:13:57,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:13:57,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-21 01:13:57,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:13:57,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-21 01:13:57,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-11-21 01:13:57,607 INFO L87 Difference]: Start difference. First operand 17072 states and 73007 transitions. Second operand has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:14:01,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:14:01,664 INFO L93 Difference]: Finished difference Result 19957 states and 85089 transitions. [2021-11-21 01:14:01,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-21 01:14:01,664 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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 63 [2021-11-21 01:14:01,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:14:01,831 INFO L225 Difference]: With dead ends: 19957 [2021-11-21 01:14:01,832 INFO L226 Difference]: Without dead ends: 19686 [2021-11-21 01:14:01,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=1563, Unknown=0, NotChecked=0, Total=1722 [2021-11-21 01:14:01,837 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 537 mSDsluCounter, 3728 mSDsCounter, 0 mSdLazyCounter, 4203 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 4232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 4203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:14:01,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [537 Valid, 1257 Invalid, 4232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 4203 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-11-21 01:14:01,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19686 states. [2021-11-21 01:14:02,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19686 to 17416. [2021-11-21 01:14:02,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17416 states, 17415 states have (on average 4.268217054263566) internal successors, (74331), 17415 states have internal predecessors, (74331), 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) [2021-11-21 01:14:03,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17416 states to 17416 states and 74331 transitions. [2021-11-21 01:14:03,075 INFO L78 Accepts]: Start accepts. Automaton has 17416 states and 74331 transitions. Word has length 63 [2021-11-21 01:14:03,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:14:03,077 INFO L470 AbstractCegarLoop]: Abstraction has 17416 states and 74331 transitions. [2021-11-21 01:14:03,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:14:03,078 INFO L276 IsEmpty]: Start isEmpty. Operand 17416 states and 74331 transitions. [2021-11-21 01:14:03,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:14:03,161 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:14:03,162 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:14:03,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:14:03,162 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:14:03,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:14:03,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1297371203, now seen corresponding path program 3 times [2021-11-21 01:14:03,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:14:03,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851001304] [2021-11-21 01:14:03,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:14:03,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:14:03,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:14:04,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:14:04,105 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:14:04,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851001304] [2021-11-21 01:14:04,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851001304] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:14:04,106 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:14:04,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-21 01:14:04,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417942701] [2021-11-21 01:14:04,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:14:04,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-21 01:14:04,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:14:04,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-21 01:14:04,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-21 01:14:04,108 INFO L87 Difference]: Start difference. First operand 17416 states and 74331 transitions. Second operand has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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) [2021-11-21 01:14:11,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:14:11,269 INFO L93 Difference]: Finished difference Result 31871 states and 135884 transitions. [2021-11-21 01:14:11,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-21 01:14:11,270 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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 63 [2021-11-21 01:14:11,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:14:11,467 INFO L225 Difference]: With dead ends: 31871 [2021-11-21 01:14:11,467 INFO L226 Difference]: Without dead ends: 31546 [2021-11-21 01:14:11,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 925 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=330, Invalid=3576, Unknown=0, NotChecked=0, Total=3906 [2021-11-21 01:14:11,472 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 1142 mSDsluCounter, 8684 mSDsCounter, 0 mSdLazyCounter, 9148 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 9220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 9148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:14:11,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1142 Valid, 3103 Invalid, 9220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 9148 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2021-11-21 01:14:11,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31546 states. [2021-11-21 01:14:12,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31546 to 17344. [2021-11-21 01:14:12,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17344 states, 17343 states have (on average 4.268869284437526) internal successors, (74035), 17343 states have internal predecessors, (74035), 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) [2021-11-21 01:14:12,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17344 states to 17344 states and 74035 transitions. [2021-11-21 01:14:12,645 INFO L78 Accepts]: Start accepts. Automaton has 17344 states and 74035 transitions. Word has length 63 [2021-11-21 01:14:12,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:14:12,647 INFO L470 AbstractCegarLoop]: Abstraction has 17344 states and 74035 transitions. [2021-11-21 01:14:12,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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) [2021-11-21 01:14:12,647 INFO L276 IsEmpty]: Start isEmpty. Operand 17344 states and 74035 transitions. [2021-11-21 01:14:12,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:14:12,713 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:14:12,714 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:14:12,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:14:12,714 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:14:12,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:14:12,718 INFO L85 PathProgramCache]: Analyzing trace with hash 229743421, now seen corresponding path program 4 times [2021-11-21 01:14:12,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:14:12,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5137145] [2021-11-21 01:14:12,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:14:12,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:14:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:14:13,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:14:13,752 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:14:13,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5137145] [2021-11-21 01:14:13,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5137145] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:14:13,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:14:13,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-21 01:14:13,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489140003] [2021-11-21 01:14:13,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:14:13,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-21 01:14:13,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:14:13,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-21 01:14:13,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-11-21 01:14:13,754 INFO L87 Difference]: Start difference. First operand 17344 states and 74035 transitions. Second operand has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:14:17,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:14:17,319 INFO L93 Difference]: Finished difference Result 20295 states and 86678 transitions. [2021-11-21 01:14:17,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-21 01:14:17,320 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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 63 [2021-11-21 01:14:17,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:14:17,394 INFO L225 Difference]: With dead ends: 20295 [2021-11-21 01:14:17,394 INFO L226 Difference]: Without dead ends: 19934 [2021-11-21 01:14:17,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=197, Invalid=1873, Unknown=0, NotChecked=0, Total=2070 [2021-11-21 01:14:17,396 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 515 mSDsluCounter, 4211 mSDsCounter, 0 mSdLazyCounter, 4822 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 1377 SdHoareTripleChecker+Invalid, 4854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 4822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:14:17,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [515 Valid, 1377 Invalid, 4854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 4822 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-21 01:14:17,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19934 states. [2021-11-21 01:14:18,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19934 to 17448. [2021-11-21 01:14:18,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17448 states, 17447 states have (on average 4.2674958445578035) internal successors, (74455), 17447 states have internal predecessors, (74455), 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) [2021-11-21 01:14:18,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17448 states to 17448 states and 74455 transitions. [2021-11-21 01:14:18,421 INFO L78 Accepts]: Start accepts. Automaton has 17448 states and 74455 transitions. Word has length 63 [2021-11-21 01:14:18,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:14:18,422 INFO L470 AbstractCegarLoop]: Abstraction has 17448 states and 74455 transitions. [2021-11-21 01:14:18,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:14:18,423 INFO L276 IsEmpty]: Start isEmpty. Operand 17448 states and 74455 transitions. [2021-11-21 01:14:18,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:14:18,512 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:14:18,512 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:14:18,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 01:14:18,513 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:14:18,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:14:18,513 INFO L85 PathProgramCache]: Analyzing trace with hash 904545985, now seen corresponding path program 5 times [2021-11-21 01:14:18,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:14:18,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510589241] [2021-11-21 01:14:18,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:14:18,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:14:18,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:14:19,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:14:19,106 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:14:19,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510589241] [2021-11-21 01:14:19,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510589241] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:14:19,106 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:14:19,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-21 01:14:19,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798365767] [2021-11-21 01:14:19,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:14:19,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-21 01:14:19,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:14:19,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-21 01:14:19,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-11-21 01:14:19,108 INFO L87 Difference]: Start difference. First operand 17448 states and 74455 transitions. Second operand has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:14:22,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:14:22,143 INFO L93 Difference]: Finished difference Result 19901 states and 84829 transitions. [2021-11-21 01:14:22,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-21 01:14:22,143 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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 63 [2021-11-21 01:14:22,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:14:22,228 INFO L225 Difference]: With dead ends: 19901 [2021-11-21 01:14:22,228 INFO L226 Difference]: Without dead ends: 19630 [2021-11-21 01:14:22,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=144, Invalid=1416, Unknown=0, NotChecked=0, Total=1560 [2021-11-21 01:14:22,230 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 526 mSDsluCounter, 3717 mSDsCounter, 0 mSdLazyCounter, 4162 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 4186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 4162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:14:22,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [526 Valid, 1249 Invalid, 4186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 4162 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-21 01:14:22,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19630 states. [2021-11-21 01:14:22,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19630 to 17520. [2021-11-21 01:14:22,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17520 states, 17519 states have (on average 4.262743307266397) internal successors, (74679), 17519 states have internal predecessors, (74679), 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) [2021-11-21 01:14:23,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17520 states to 17520 states and 74679 transitions. [2021-11-21 01:14:23,344 INFO L78 Accepts]: Start accepts. Automaton has 17520 states and 74679 transitions. Word has length 63 [2021-11-21 01:14:23,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:14:23,345 INFO L470 AbstractCegarLoop]: Abstraction has 17520 states and 74679 transitions. [2021-11-21 01:14:23,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:14:23,345 INFO L276 IsEmpty]: Start isEmpty. Operand 17520 states and 74679 transitions. [2021-11-21 01:14:23,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:14:23,398 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:14:23,398 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:14:23,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 01:14:23,398 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:14:23,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:14:23,399 INFO L85 PathProgramCache]: Analyzing trace with hash 852600221, now seen corresponding path program 6 times [2021-11-21 01:14:23,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:14:23,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619388425] [2021-11-21 01:14:23,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:14:23,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:14:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:14:24,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:14:24,329 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:14:24,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619388425] [2021-11-21 01:14:24,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619388425] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:14:24,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:14:24,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-21 01:14:24,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407165142] [2021-11-21 01:14:24,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:14:24,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-21 01:14:24,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:14:24,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-21 01:14:24,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2021-11-21 01:14:24,331 INFO L87 Difference]: Start difference. First operand 17520 states and 74679 transitions. Second operand has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 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) [2021-11-21 01:14:29,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:14:29,010 INFO L93 Difference]: Finished difference Result 27693 states and 117043 transitions. [2021-11-21 01:14:29,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-21 01:14:29,011 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 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 63 [2021-11-21 01:14:29,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:14:29,111 INFO L225 Difference]: With dead ends: 27693 [2021-11-21 01:14:29,111 INFO L226 Difference]: Without dead ends: 27332 [2021-11-21 01:14:29,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=167, Invalid=1639, Unknown=0, NotChecked=0, Total=1806 [2021-11-21 01:14:29,113 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 790 mSDsluCounter, 7122 mSDsCounter, 0 mSdLazyCounter, 7508 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 2525 SdHoareTripleChecker+Invalid, 7540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 7508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:14:29,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [790 Valid, 2525 Invalid, 7540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 7508 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-11-21 01:14:29,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27332 states. [2021-11-21 01:14:29,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27332 to 17376. [2021-11-21 01:14:29,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17376 states, 17375 states have (on average 4.271827338129496) internal successors, (74223), 17375 states have internal predecessors, (74223), 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) [2021-11-21 01:14:29,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17376 states to 17376 states and 74223 transitions. [2021-11-21 01:14:29,934 INFO L78 Accepts]: Start accepts. Automaton has 17376 states and 74223 transitions. Word has length 63 [2021-11-21 01:14:29,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:14:29,934 INFO L470 AbstractCegarLoop]: Abstraction has 17376 states and 74223 transitions. [2021-11-21 01:14:29,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 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) [2021-11-21 01:14:29,934 INFO L276 IsEmpty]: Start isEmpty. Operand 17376 states and 74223 transitions. [2021-11-21 01:14:29,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:14:29,991 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:14:29,991 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:14:29,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 01:14:29,991 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:14:29,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:14:29,992 INFO L85 PathProgramCache]: Analyzing trace with hash 761506081, now seen corresponding path program 7 times [2021-11-21 01:14:29,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:14:29,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726832402] [2021-11-21 01:14:29,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:14:29,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:14:30,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:14:30,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:14:30,786 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:14:30,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726832402] [2021-11-21 01:14:30,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726832402] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:14:30,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:14:30,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-21 01:14:30,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982526273] [2021-11-21 01:14:30,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:14:30,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-21 01:14:30,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:14:30,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-21 01:14:30,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=454, Unknown=0, NotChecked=0, Total=506 [2021-11-21 01:14:30,789 INFO L87 Difference]: Start difference. First operand 17376 states and 74223 transitions. Second operand has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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) [2021-11-21 01:14:41,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:14:41,752 INFO L93 Difference]: Finished difference Result 48894 states and 205106 transitions. [2021-11-21 01:14:41,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2021-11-21 01:14:41,753 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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 63 [2021-11-21 01:14:41,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:14:41,954 INFO L225 Difference]: With dead ends: 48894 [2021-11-21 01:14:41,955 INFO L226 Difference]: Without dead ends: 48232 [2021-11-21 01:14:41,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4673 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1051, Invalid=12521, Unknown=0, NotChecked=0, Total=13572 [2021-11-21 01:14:41,960 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 1747 mSDsluCounter, 12512 mSDsCounter, 0 mSdLazyCounter, 14326 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1747 SdHoareTripleChecker+Valid, 4161 SdHoareTripleChecker+Invalid, 14676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 14326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:14:41,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1747 Valid, 4161 Invalid, 14676 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [350 Valid, 14326 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2021-11-21 01:14:42,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48232 states. [2021-11-21 01:14:42,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48232 to 17520. [2021-11-21 01:14:42,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17520 states, 17519 states have (on average 4.274616131057709) internal successors, (74887), 17519 states have internal predecessors, (74887), 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) [2021-11-21 01:14:43,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17520 states to 17520 states and 74887 transitions. [2021-11-21 01:14:43,028 INFO L78 Accepts]: Start accepts. Automaton has 17520 states and 74887 transitions. Word has length 63 [2021-11-21 01:14:43,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:14:43,028 INFO L470 AbstractCegarLoop]: Abstraction has 17520 states and 74887 transitions. [2021-11-21 01:14:43,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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) [2021-11-21 01:14:43,028 INFO L276 IsEmpty]: Start isEmpty. Operand 17520 states and 74887 transitions. [2021-11-21 01:14:43,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:14:43,069 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:14:43,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:14:43,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 01:14:43,069 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:14:43,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:14:43,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1024167449, now seen corresponding path program 8 times [2021-11-21 01:14:43,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:14:43,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553894845] [2021-11-21 01:14:43,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:14:43,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:14:43,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:14:43,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:14:43,713 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:14:43,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553894845] [2021-11-21 01:14:43,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553894845] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:14:43,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:14:43,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-21 01:14:43,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826675010] [2021-11-21 01:14:43,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:14:43,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-21 01:14:43,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:14:43,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-21 01:14:43,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=454, Unknown=0, NotChecked=0, Total=506 [2021-11-21 01:14:43,715 INFO L87 Difference]: Start difference. First operand 17520 states and 74887 transitions. Second operand has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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) [2021-11-21 01:14:56,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:14:56,007 INFO L93 Difference]: Finished difference Result 64484 states and 274623 transitions. [2021-11-21 01:14:56,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-11-21 01:14:56,008 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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 63 [2021-11-21 01:14:56,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:14:56,514 INFO L225 Difference]: With dead ends: 64484 [2021-11-21 01:14:56,514 INFO L226 Difference]: Without dead ends: 63392 [2021-11-21 01:14:56,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5607 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1184, Invalid=14566, Unknown=0, NotChecked=0, Total=15750 [2021-11-21 01:14:56,519 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 1950 mSDsluCounter, 13564 mSDsCounter, 0 mSdLazyCounter, 16218 mSolverCounterSat, 395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1950 SdHoareTripleChecker+Valid, 4594 SdHoareTripleChecker+Invalid, 16613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 395 IncrementalHoareTripleChecker+Valid, 16218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:14:56,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1950 Valid, 4594 Invalid, 16613 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [395 Valid, 16218 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2021-11-21 01:14:56,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63392 states. [2021-11-21 01:14:57,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63392 to 17880. [2021-11-21 01:14:57,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17880 states, 17879 states have (on average 4.284523742938643) internal successors, (76603), 17879 states have internal predecessors, (76603), 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) [2021-11-21 01:14:57,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17880 states to 17880 states and 76603 transitions. [2021-11-21 01:14:57,766 INFO L78 Accepts]: Start accepts. Automaton has 17880 states and 76603 transitions. Word has length 63 [2021-11-21 01:14:57,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:14:57,766 INFO L470 AbstractCegarLoop]: Abstraction has 17880 states and 76603 transitions. [2021-11-21 01:14:57,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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) [2021-11-21 01:14:57,766 INFO L276 IsEmpty]: Start isEmpty. Operand 17880 states and 76603 transitions. [2021-11-21 01:14:57,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:14:57,807 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:14:57,807 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:14:57,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 01:14:57,807 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:14:57,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:14:57,808 INFO L85 PathProgramCache]: Analyzing trace with hash -431394253, now seen corresponding path program 9 times [2021-11-21 01:14:57,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:14:57,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087135251] [2021-11-21 01:14:57,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:14:57,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:14:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:14:58,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:14:58,414 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:14:58,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087135251] [2021-11-21 01:14:58,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087135251] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:14:58,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:14:58,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-21 01:14:58,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192236864] [2021-11-21 01:14:58,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:14:58,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-21 01:14:58,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:14:58,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-21 01:14:58,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=458, Unknown=0, NotChecked=0, Total=506 [2021-11-21 01:14:58,415 INFO L87 Difference]: Start difference. First operand 17880 states and 76603 transitions. Second operand has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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) [2021-11-21 01:15:06,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:15:06,752 INFO L93 Difference]: Finished difference Result 35213 states and 150759 transitions. [2021-11-21 01:15:06,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-11-21 01:15:06,752 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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 63 [2021-11-21 01:15:06,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:15:06,879 INFO L225 Difference]: With dead ends: 35213 [2021-11-21 01:15:06,879 INFO L226 Difference]: Without dead ends: 34862 [2021-11-21 01:15:06,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2808 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=650, Invalid=8470, Unknown=0, NotChecked=0, Total=9120 [2021-11-21 01:15:06,884 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 1330 mSDsluCounter, 10400 mSDsCounter, 0 mSdLazyCounter, 11263 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1330 SdHoareTripleChecker+Valid, 3698 SdHoareTripleChecker+Invalid, 11418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 11263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:15:06,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1330 Valid, 3698 Invalid, 11418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 11263 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2021-11-21 01:15:06,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34862 states. [2021-11-21 01:15:07,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34862 to 17984. [2021-11-21 01:15:07,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17984 states, 17983 states have (on average 4.287994216760274) internal successors, (77111), 17983 states have internal predecessors, (77111), 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) [2021-11-21 01:15:07,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17984 states to 17984 states and 77111 transitions. [2021-11-21 01:15:07,691 INFO L78 Accepts]: Start accepts. Automaton has 17984 states and 77111 transitions. Word has length 63 [2021-11-21 01:15:07,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:15:07,692 INFO L470 AbstractCegarLoop]: Abstraction has 17984 states and 77111 transitions. [2021-11-21 01:15:07,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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) [2021-11-21 01:15:07,692 INFO L276 IsEmpty]: Start isEmpty. Operand 17984 states and 77111 transitions. [2021-11-21 01:15:07,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:15:07,736 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:15:07,736 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:15:07,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-21 01:15:07,736 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:15:07,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:15:07,737 INFO L85 PathProgramCache]: Analyzing trace with hash 175468371, now seen corresponding path program 10 times [2021-11-21 01:15:07,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:15:07,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898591470] [2021-11-21 01:15:07,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:15:07,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:15:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:15:08,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:15:08,179 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:15:08,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898591470] [2021-11-21 01:15:08,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898591470] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:15:08,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:15:08,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-21 01:15:08,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118613121] [2021-11-21 01:15:08,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:15:08,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-21 01:15:08,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:15:08,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-21 01:15:08,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-11-21 01:15:08,185 INFO L87 Difference]: Start difference. First operand 17984 states and 77111 transitions. Second operand has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:15:11,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:15:11,546 INFO L93 Difference]: Finished difference Result 21073 states and 90675 transitions. [2021-11-21 01:15:11,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-21 01:15:11,547 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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 63 [2021-11-21 01:15:11,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:15:11,631 INFO L225 Difference]: With dead ends: 21073 [2021-11-21 01:15:11,631 INFO L226 Difference]: Without dead ends: 20812 [2021-11-21 01:15:11,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=228, Invalid=2222, Unknown=0, NotChecked=0, Total=2450 [2021-11-21 01:15:11,633 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 576 mSDsluCounter, 3839 mSDsCounter, 0 mSdLazyCounter, 4696 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 4746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 4696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:15:11,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [576 Valid, 1242 Invalid, 4746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 4696 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-21 01:15:11,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20812 states. [2021-11-21 01:15:12,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20812 to 18016. [2021-11-21 01:15:12,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18016 states, 18015 states have (on average 4.288370802109354) internal successors, (77255), 18015 states have internal predecessors, (77255), 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) [2021-11-21 01:15:12,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18016 states to 18016 states and 77255 transitions. [2021-11-21 01:15:12,362 INFO L78 Accepts]: Start accepts. Automaton has 18016 states and 77255 transitions. Word has length 63 [2021-11-21 01:15:12,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:15:12,363 INFO L470 AbstractCegarLoop]: Abstraction has 18016 states and 77255 transitions. [2021-11-21 01:15:12,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:15:12,363 INFO L276 IsEmpty]: Start isEmpty. Operand 18016 states and 77255 transitions. [2021-11-21 01:15:12,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:15:12,404 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:15:12,405 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:15:12,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-21 01:15:12,405 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:15:12,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:15:12,405 INFO L85 PathProgramCache]: Analyzing trace with hash -831999455, now seen corresponding path program 11 times [2021-11-21 01:15:12,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:15:12,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590613870] [2021-11-21 01:15:12,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:15:12,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:15:12,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:15:13,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:15:13,114 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:15:13,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590613870] [2021-11-21 01:15:13,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590613870] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:15:13,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:15:13,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-21 01:15:13,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372993408] [2021-11-21 01:15:13,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:15:13,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-21 01:15:13,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:15:13,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-21 01:15:13,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2021-11-21 01:15:13,116 INFO L87 Difference]: Start difference. First operand 18016 states and 77255 transitions. Second operand has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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) [2021-11-21 01:15:22,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:15:22,421 INFO L93 Difference]: Finished difference Result 45915 states and 191813 transitions. [2021-11-21 01:15:22,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-11-21 01:15:22,421 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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 63 [2021-11-21 01:15:22,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:15:22,588 INFO L225 Difference]: With dead ends: 45915 [2021-11-21 01:15:22,588 INFO L226 Difference]: Without dead ends: 45644 [2021-11-21 01:15:22,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2382 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=700, Invalid=7132, Unknown=0, NotChecked=0, Total=7832 [2021-11-21 01:15:22,592 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 1382 mSDsluCounter, 12319 mSDsCounter, 0 mSdLazyCounter, 13718 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 4177 SdHoareTripleChecker+Invalid, 13891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 13718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:15:22,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1382 Valid, 4177 Invalid, 13891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 13718 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2021-11-21 01:15:22,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45644 states. [2021-11-21 01:15:23,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45644 to 18136. [2021-11-21 01:15:23,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18136 states, 18135 states have (on average 4.285800937413841) internal successors, (77723), 18135 states have internal predecessors, (77723), 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) [2021-11-21 01:15:23,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18136 states to 18136 states and 77723 transitions. [2021-11-21 01:15:23,869 INFO L78 Accepts]: Start accepts. Automaton has 18136 states and 77723 transitions. Word has length 63 [2021-11-21 01:15:23,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:15:23,870 INFO L470 AbstractCegarLoop]: Abstraction has 18136 states and 77723 transitions. [2021-11-21 01:15:23,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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) [2021-11-21 01:15:23,870 INFO L276 IsEmpty]: Start isEmpty. Operand 18136 states and 77723 transitions. [2021-11-21 01:15:23,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:15:23,933 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:15:23,933 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:15:23,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-21 01:15:23,933 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:15:23,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:15:23,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1639770943, now seen corresponding path program 12 times [2021-11-21 01:15:23,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:15:23,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971033663] [2021-11-21 01:15:23,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:15:23,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:15:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:15:24,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:15:24,658 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:15:24,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971033663] [2021-11-21 01:15:24,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971033663] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:15:24,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:15:24,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-21 01:15:24,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542321881] [2021-11-21 01:15:24,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:15:24,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-21 01:15:24,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:15:24,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-21 01:15:24,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-21 01:15:24,660 INFO L87 Difference]: Start difference. First operand 18136 states and 77723 transitions. Second operand has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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) [2021-11-21 01:15:30,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:15:30,608 INFO L93 Difference]: Finished difference Result 32863 states and 140120 transitions. [2021-11-21 01:15:30,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-11-21 01:15:30,609 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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 63 [2021-11-21 01:15:30,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:15:30,728 INFO L225 Difference]: With dead ends: 32863 [2021-11-21 01:15:30,728 INFO L226 Difference]: Without dead ends: 32530 [2021-11-21 01:15:30,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1149 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=377, Invalid=4179, Unknown=0, NotChecked=0, Total=4556 [2021-11-21 01:15:30,729 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 1216 mSDsluCounter, 8659 mSDsCounter, 0 mSdLazyCounter, 9104 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 3095 SdHoareTripleChecker+Invalid, 9188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 9104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:15:30,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1216 Valid, 3095 Invalid, 9188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 9104 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-11-21 01:15:30,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32530 states. [2021-11-21 01:15:31,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32530 to 18136. [2021-11-21 01:15:31,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18136 states, 18135 states have (on average 4.285359801488834) internal successors, (77715), 18135 states have internal predecessors, (77715), 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) [2021-11-21 01:15:31,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18136 states to 18136 states and 77715 transitions. [2021-11-21 01:15:31,523 INFO L78 Accepts]: Start accepts. Automaton has 18136 states and 77715 transitions. Word has length 63 [2021-11-21 01:15:31,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:15:31,523 INFO L470 AbstractCegarLoop]: Abstraction has 18136 states and 77715 transitions. [2021-11-21 01:15:31,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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) [2021-11-21 01:15:31,523 INFO L276 IsEmpty]: Start isEmpty. Operand 18136 states and 77715 transitions. [2021-11-21 01:15:31,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:15:31,566 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:15:31,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:15:31,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-21 01:15:31,566 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:15:31,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:15:31,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1493096317, now seen corresponding path program 13 times [2021-11-21 01:15:31,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:15:31,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464651863] [2021-11-21 01:15:31,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:15:31,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:15:31,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:15:32,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:15:32,014 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:15:32,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464651863] [2021-11-21 01:15:32,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464651863] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:15:32,014 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:15:32,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-21 01:15:32,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992460659] [2021-11-21 01:15:32,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:15:32,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-21 01:15:32,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:15:32,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-21 01:15:32,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-11-21 01:15:32,016 INFO L87 Difference]: Start difference. First operand 18136 states and 77715 transitions. Second operand has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:15:34,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:15:34,668 INFO L93 Difference]: Finished difference Result 20981 states and 89541 transitions. [2021-11-21 01:15:34,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-21 01:15:34,669 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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 63 [2021-11-21 01:15:34,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:15:34,743 INFO L225 Difference]: With dead ends: 20981 [2021-11-21 01:15:34,743 INFO L226 Difference]: Without dead ends: 20760 [2021-11-21 01:15:34,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=145, Invalid=1415, Unknown=0, NotChecked=0, Total=1560 [2021-11-21 01:15:34,745 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 505 mSDsluCounter, 3837 mSDsCounter, 0 mSdLazyCounter, 4299 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 4323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 4299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:15:34,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [505 Valid, 1287 Invalid, 4323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 4299 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-21 01:15:34,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20760 states. [2021-11-21 01:15:35,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20760 to 18184. [2021-11-21 01:15:35,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18184 states, 18183 states have (on average 4.283726557773745) internal successors, (77891), 18183 states have internal predecessors, (77891), 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) [2021-11-21 01:15:35,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18184 states to 18184 states and 77891 transitions. [2021-11-21 01:15:35,515 INFO L78 Accepts]: Start accepts. Automaton has 18184 states and 77891 transitions. Word has length 63 [2021-11-21 01:15:35,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:15:35,515 INFO L470 AbstractCegarLoop]: Abstraction has 18184 states and 77891 transitions. [2021-11-21 01:15:35,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:15:35,515 INFO L276 IsEmpty]: Start isEmpty. Operand 18184 states and 77891 transitions. [2021-11-21 01:15:35,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:15:35,556 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:15:35,556 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:15:35,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-21 01:15:35,557 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:15:35,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:15:35,557 INFO L85 PathProgramCache]: Analyzing trace with hash 666248273, now seen corresponding path program 14 times [2021-11-21 01:15:35,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:15:35,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894649125] [2021-11-21 01:15:35,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:15:35,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:15:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:15:36,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:15:36,209 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:15:36,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894649125] [2021-11-21 01:15:36,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894649125] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:15:36,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:15:36,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-21 01:15:36,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409796102] [2021-11-21 01:15:36,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:15:36,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-21 01:15:36,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:15:36,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-21 01:15:36,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2021-11-21 01:15:36,212 INFO L87 Difference]: Start difference. First operand 18184 states and 77891 transitions. Second operand has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 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) [2021-11-21 01:15:45,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:15:45,070 INFO L93 Difference]: Finished difference Result 37133 states and 156548 transitions. [2021-11-21 01:15:45,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-11-21 01:15:45,070 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 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 63 [2021-11-21 01:15:45,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:15:45,208 INFO L225 Difference]: With dead ends: 37133 [2021-11-21 01:15:45,208 INFO L226 Difference]: Without dead ends: 36842 [2021-11-21 01:15:45,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2542 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=693, Invalid=7679, Unknown=0, NotChecked=0, Total=8372 [2021-11-21 01:15:45,210 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 1413 mSDsluCounter, 9888 mSDsCounter, 0 mSdLazyCounter, 11084 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1413 SdHoareTripleChecker+Valid, 3491 SdHoareTripleChecker+Invalid, 11355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 11084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:15:45,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1413 Valid, 3491 Invalid, 11355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 11084 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2021-11-21 01:15:45,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36842 states. [2021-11-21 01:15:45,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36842 to 18268. [2021-11-21 01:15:45,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18268 states, 18267 states have (on average 4.2830787759347455) internal successors, (78239), 18267 states have internal predecessors, (78239), 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) [2021-11-21 01:15:46,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18268 states to 18268 states and 78239 transitions. [2021-11-21 01:15:46,059 INFO L78 Accepts]: Start accepts. Automaton has 18268 states and 78239 transitions. Word has length 63 [2021-11-21 01:15:46,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:15:46,060 INFO L470 AbstractCegarLoop]: Abstraction has 18268 states and 78239 transitions. [2021-11-21 01:15:46,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 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) [2021-11-21 01:15:46,060 INFO L276 IsEmpty]: Start isEmpty. Operand 18268 states and 78239 transitions. [2021-11-21 01:15:46,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:15:46,390 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:15:46,391 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:15:46,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-21 01:15:46,391 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:15:46,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:15:46,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1630500289, now seen corresponding path program 15 times [2021-11-21 01:15:46,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:15:46,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130065586] [2021-11-21 01:15:46,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:15:46,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:15:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:15:46,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:15:46,992 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:15:46,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130065586] [2021-11-21 01:15:46,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130065586] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:15:46,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:15:46,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-21 01:15:46,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624537081] [2021-11-21 01:15:46,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:15:46,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-21 01:15:46,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:15:46,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-21 01:15:46,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-11-21 01:15:46,994 INFO L87 Difference]: Start difference. First operand 18268 states and 78239 transitions. Second operand has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:15:50,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:15:50,401 INFO L93 Difference]: Finished difference Result 21631 states and 92330 transitions. [2021-11-21 01:15:50,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-21 01:15:50,401 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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 63 [2021-11-21 01:15:50,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:15:50,476 INFO L225 Difference]: With dead ends: 21631 [2021-11-21 01:15:50,476 INFO L226 Difference]: Without dead ends: 21250 [2021-11-21 01:15:50,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=241, Invalid=2309, Unknown=0, NotChecked=0, Total=2550 [2021-11-21 01:15:50,477 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 612 mSDsluCounter, 4240 mSDsCounter, 0 mSdLazyCounter, 4908 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 1379 SdHoareTripleChecker+Invalid, 4951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 4908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:15:50,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [612 Valid, 1379 Invalid, 4951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 4908 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-21 01:15:50,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21250 states. [2021-11-21 01:15:50,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21250 to 18296. [2021-11-21 01:15:50,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18296 states, 18295 states have (on average 4.281333697731621) internal successors, (78327), 18295 states have internal predecessors, (78327), 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) [2021-11-21 01:15:51,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18296 states to 18296 states and 78327 transitions. [2021-11-21 01:15:51,067 INFO L78 Accepts]: Start accepts. Automaton has 18296 states and 78327 transitions. Word has length 63 [2021-11-21 01:15:51,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:15:51,068 INFO L470 AbstractCegarLoop]: Abstraction has 18296 states and 78327 transitions. [2021-11-21 01:15:51,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:15:51,068 INFO L276 IsEmpty]: Start isEmpty. Operand 18296 states and 78327 transitions. [2021-11-21 01:15:51,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:15:51,110 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:15:51,111 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:15:51,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-21 01:15:51,111 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:15:51,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:15:51,112 INFO L85 PathProgramCache]: Analyzing trace with hash 2070276787, now seen corresponding path program 16 times [2021-11-21 01:15:51,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:15:51,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481170643] [2021-11-21 01:15:51,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:15:51,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:15:51,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:15:51,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:15:51,944 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:15:51,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481170643] [2021-11-21 01:15:51,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481170643] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:15:51,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:15:51,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-21 01:15:51,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789572100] [2021-11-21 01:15:51,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:15:51,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-21 01:15:51,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:15:51,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-21 01:15:51,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-21 01:15:51,945 INFO L87 Difference]: Start difference. First operand 18296 states and 78327 transitions. Second operand has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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) [2021-11-21 01:15:58,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:15:58,772 INFO L93 Difference]: Finished difference Result 34539 states and 146348 transitions. [2021-11-21 01:15:58,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-11-21 01:15:58,772 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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 63 [2021-11-21 01:15:58,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:15:58,893 INFO L225 Difference]: With dead ends: 34539 [2021-11-21 01:15:58,893 INFO L226 Difference]: Without dead ends: 34278 [2021-11-21 01:15:58,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2025 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=517, Invalid=6455, Unknown=0, NotChecked=0, Total=6972 [2021-11-21 01:15:58,895 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 1245 mSDsluCounter, 9169 mSDsCounter, 0 mSdLazyCounter, 9788 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1245 SdHoareTripleChecker+Valid, 3221 SdHoareTripleChecker+Invalid, 9922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 9788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:15:58,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1245 Valid, 3221 Invalid, 9922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 9788 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2021-11-21 01:15:58,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34278 states. [2021-11-21 01:15:59,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34278 to 18372. [2021-11-21 01:15:59,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18372 states, 18371 states have (on average 4.277774753687877) internal successors, (78587), 18371 states have internal predecessors, (78587), 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) [2021-11-21 01:15:59,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18372 states to 18372 states and 78587 transitions. [2021-11-21 01:15:59,702 INFO L78 Accepts]: Start accepts. Automaton has 18372 states and 78587 transitions. Word has length 63 [2021-11-21 01:15:59,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:15:59,702 INFO L470 AbstractCegarLoop]: Abstraction has 18372 states and 78587 transitions. [2021-11-21 01:15:59,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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) [2021-11-21 01:15:59,702 INFO L276 IsEmpty]: Start isEmpty. Operand 18372 states and 78587 transitions. [2021-11-21 01:15:59,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:15:59,744 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:15:59,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:15:59,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-21 01:15:59,745 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:15:59,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:15:59,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1392664101, now seen corresponding path program 17 times [2021-11-21 01:15:59,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:15:59,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170184171] [2021-11-21 01:15:59,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:15:59,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:15:59,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:00,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:00,296 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:00,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170184171] [2021-11-21 01:16:00,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170184171] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:00,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:00,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-21 01:16:00,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760239834] [2021-11-21 01:16:00,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:00,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-21 01:16:00,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:00,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-21 01:16:00,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-11-21 01:16:00,298 INFO L87 Difference]: Start difference. First operand 18372 states and 78587 transitions. Second operand has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:16:04,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:04,005 INFO L93 Difference]: Finished difference Result 21731 states and 92666 transitions. [2021-11-21 01:16:04,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-21 01:16:04,005 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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 63 [2021-11-21 01:16:04,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:04,081 INFO L225 Difference]: With dead ends: 21731 [2021-11-21 01:16:04,081 INFO L226 Difference]: Without dead ends: 21370 [2021-11-21 01:16:04,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=246, Invalid=2406, Unknown=0, NotChecked=0, Total=2652 [2021-11-21 01:16:04,083 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 645 mSDsluCounter, 4288 mSDsCounter, 0 mSdLazyCounter, 5016 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 5060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 5016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:04,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [645 Valid, 1378 Invalid, 5060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 5016 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-21 01:16:04,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21370 states. [2021-11-21 01:16:04,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21370 to 18372. [2021-11-21 01:16:04,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18372 states, 18371 states have (on average 4.277774753687877) internal successors, (78587), 18371 states have internal predecessors, (78587), 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) [2021-11-21 01:16:04,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18372 states to 18372 states and 78587 transitions. [2021-11-21 01:16:04,836 INFO L78 Accepts]: Start accepts. Automaton has 18372 states and 78587 transitions. Word has length 63 [2021-11-21 01:16:04,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:04,836 INFO L470 AbstractCegarLoop]: Abstraction has 18372 states and 78587 transitions. [2021-11-21 01:16:04,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:16:04,837 INFO L276 IsEmpty]: Start isEmpty. Operand 18372 states and 78587 transitions. [2021-11-21 01:16:04,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:16:04,877 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:04,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:04,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-21 01:16:04,878 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:16:04,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:04,878 INFO L85 PathProgramCache]: Analyzing trace with hash -186747359, now seen corresponding path program 18 times [2021-11-21 01:16:04,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:04,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60347778] [2021-11-21 01:16:04,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:04,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:04,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:05,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:05,406 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:05,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60347778] [2021-11-21 01:16:05,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60347778] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:05,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:05,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-21 01:16:05,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71922617] [2021-11-21 01:16:05,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:05,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-21 01:16:05,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:05,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-21 01:16:05,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-11-21 01:16:05,407 INFO L87 Difference]: Start difference. First operand 18372 states and 78587 transitions. Second operand has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:16:08,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:08,441 INFO L93 Difference]: Finished difference Result 21067 states and 89862 transitions. [2021-11-21 01:16:08,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-21 01:16:08,442 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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 63 [2021-11-21 01:16:08,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:08,517 INFO L225 Difference]: With dead ends: 21067 [2021-11-21 01:16:08,517 INFO L226 Difference]: Without dead ends: 20796 [2021-11-21 01:16:08,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=156, Invalid=1484, Unknown=0, NotChecked=0, Total=1640 [2021-11-21 01:16:08,520 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 589 mSDsluCounter, 3595 mSDsCounter, 0 mSdLazyCounter, 4083 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 4112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 4083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:08,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [589 Valid, 1211 Invalid, 4112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 4083 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-21 01:16:08,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20796 states. [2021-11-21 01:16:09,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20796 to 18408. [2021-11-21 01:16:09,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18408 states, 18407 states have (on average 4.275493018960178) internal successors, (78699), 18407 states have internal predecessors, (78699), 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) [2021-11-21 01:16:09,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18408 states to 18408 states and 78699 transitions. [2021-11-21 01:16:09,273 INFO L78 Accepts]: Start accepts. Automaton has 18408 states and 78699 transitions. Word has length 63 [2021-11-21 01:16:09,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:09,273 INFO L470 AbstractCegarLoop]: Abstraction has 18408 states and 78699 transitions. [2021-11-21 01:16:09,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:16:09,274 INFO L276 IsEmpty]: Start isEmpty. Operand 18408 states and 78699 transitions. [2021-11-21 01:16:09,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:16:09,316 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:09,316 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:09,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-21 01:16:09,317 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:16:09,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:09,317 INFO L85 PathProgramCache]: Analyzing trace with hash -994518847, now seen corresponding path program 19 times [2021-11-21 01:16:09,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:09,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270335049] [2021-11-21 01:16:09,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:09,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:09,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:10,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:10,024 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:10,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270335049] [2021-11-21 01:16:10,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270335049] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:10,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:10,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-21 01:16:10,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281845726] [2021-11-21 01:16:10,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:10,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-21 01:16:10,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:10,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-21 01:16:10,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=454, Unknown=0, NotChecked=0, Total=506 [2021-11-21 01:16:10,027 INFO L87 Difference]: Start difference. First operand 18408 states and 78699 transitions. Second operand has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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) [2021-11-21 01:16:19,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:19,672 INFO L93 Difference]: Finished difference Result 47380 states and 195501 transitions. [2021-11-21 01:16:19,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-11-21 01:16:19,672 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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 63 [2021-11-21 01:16:19,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:19,845 INFO L225 Difference]: With dead ends: 47380 [2021-11-21 01:16:19,845 INFO L226 Difference]: Without dead ends: 46308 [2021-11-21 01:16:19,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2048 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=613, Invalid=6359, Unknown=0, NotChecked=0, Total=6972 [2021-11-21 01:16:19,847 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 1471 mSDsluCounter, 13213 mSDsCounter, 0 mSdLazyCounter, 14257 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1471 SdHoareTripleChecker+Valid, 4410 SdHoareTripleChecker+Invalid, 14410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 14257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:19,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1471 Valid, 4410 Invalid, 14410 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [153 Valid, 14257 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2021-11-21 01:16:19,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46308 states. [2021-11-21 01:16:20,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46308 to 18416. [2021-11-21 01:16:20,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18416 states, 18415 states have (on average 4.27645940809123) internal successors, (78751), 18415 states have internal predecessors, (78751), 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) [2021-11-21 01:16:20,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18416 states to 18416 states and 78751 transitions. [2021-11-21 01:16:20,842 INFO L78 Accepts]: Start accepts. Automaton has 18416 states and 78751 transitions. Word has length 63 [2021-11-21 01:16:20,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:20,842 INFO L470 AbstractCegarLoop]: Abstraction has 18416 states and 78751 transitions. [2021-11-21 01:16:20,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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) [2021-11-21 01:16:20,842 INFO L276 IsEmpty]: Start isEmpty. Operand 18416 states and 78751 transitions. [2021-11-21 01:16:20,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:16:20,882 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:20,882 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:20,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-21 01:16:20,883 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:16:20,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:20,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1351383597, now seen corresponding path program 20 times [2021-11-21 01:16:20,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:20,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951502076] [2021-11-21 01:16:20,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:20,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:21,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:21,760 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:21,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951502076] [2021-11-21 01:16:21,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951502076] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:21,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:21,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-21 01:16:21,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670223954] [2021-11-21 01:16:21,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:21,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-21 01:16:21,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:21,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-21 01:16:21,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-11-21 01:16:21,762 INFO L87 Difference]: Start difference. First operand 18416 states and 78751 transitions. Second operand has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:16:24,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:24,438 INFO L93 Difference]: Finished difference Result 21057 states and 89813 transitions. [2021-11-21 01:16:24,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-21 01:16:24,439 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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 63 [2021-11-21 01:16:24,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:24,513 INFO L225 Difference]: With dead ends: 21057 [2021-11-21 01:16:24,514 INFO L226 Difference]: Without dead ends: 20786 [2021-11-21 01:16:24,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=169, Invalid=1637, Unknown=0, NotChecked=0, Total=1806 [2021-11-21 01:16:24,515 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 557 mSDsluCounter, 3606 mSDsCounter, 0 mSdLazyCounter, 4098 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 4129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 4098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:24,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [557 Valid, 1218 Invalid, 4129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 4098 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-21 01:16:24,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20786 states. [2021-11-21 01:16:25,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20786 to 18452. [2021-11-21 01:16:25,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18452 states, 18451 states have (on average 4.276136794753672) internal successors, (78899), 18451 states have internal predecessors, (78899), 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) [2021-11-21 01:16:25,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18452 states to 18452 states and 78899 transitions. [2021-11-21 01:16:25,301 INFO L78 Accepts]: Start accepts. Automaton has 18452 states and 78899 transitions. Word has length 63 [2021-11-21 01:16:25,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:25,302 INFO L470 AbstractCegarLoop]: Abstraction has 18452 states and 78899 transitions. [2021-11-21 01:16:25,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:16:25,302 INFO L276 IsEmpty]: Start isEmpty. Operand 18452 states and 78899 transitions. [2021-11-21 01:16:25,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:16:25,349 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:25,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:25,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-21 01:16:25,349 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:16:25,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:25,350 INFO L85 PathProgramCache]: Analyzing trace with hash 2135812211, now seen corresponding path program 21 times [2021-11-21 01:16:25,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:25,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594445500] [2021-11-21 01:16:25,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:25,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:25,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:25,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:25,939 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:25,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594445500] [2021-11-21 01:16:25,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594445500] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:25,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:25,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-21 01:16:25,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999557254] [2021-11-21 01:16:25,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:25,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-21 01:16:25,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:25,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-21 01:16:25,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-11-21 01:16:25,941 INFO L87 Difference]: Start difference. First operand 18452 states and 78899 transitions. Second operand has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:16:29,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:29,009 INFO L93 Difference]: Finished difference Result 21003 states and 89564 transitions. [2021-11-21 01:16:29,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-21 01:16:29,010 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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 63 [2021-11-21 01:16:29,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:29,080 INFO L225 Difference]: With dead ends: 21003 [2021-11-21 01:16:29,081 INFO L226 Difference]: Without dead ends: 20750 [2021-11-21 01:16:29,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=170, Invalid=1636, Unknown=0, NotChecked=0, Total=1806 [2021-11-21 01:16:29,082 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 594 mSDsluCounter, 3530 mSDsCounter, 0 mSdLazyCounter, 4052 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 1184 SdHoareTripleChecker+Invalid, 4084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 4052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:29,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [594 Valid, 1184 Invalid, 4084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 4052 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-21 01:16:29,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20750 states. [2021-11-21 01:16:29,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20750 to 18488. [2021-11-21 01:16:29,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18488 states, 18487 states have (on average 4.273868123546276) internal successors, (79011), 18487 states have internal predecessors, (79011), 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) [2021-11-21 01:16:29,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18488 states to 18488 states and 79011 transitions. [2021-11-21 01:16:29,818 INFO L78 Accepts]: Start accepts. Automaton has 18488 states and 79011 transitions. Word has length 63 [2021-11-21 01:16:29,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:29,819 INFO L470 AbstractCegarLoop]: Abstraction has 18488 states and 79011 transitions. [2021-11-21 01:16:29,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:16:29,819 INFO L276 IsEmpty]: Start isEmpty. Operand 18488 states and 79011 transitions. [2021-11-21 01:16:29,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:16:29,860 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:29,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:29,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-21 01:16:29,861 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:16:29,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:29,861 INFO L85 PathProgramCache]: Analyzing trace with hash -212717393, now seen corresponding path program 22 times [2021-11-21 01:16:29,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:29,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743132469] [2021-11-21 01:16:29,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:29,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:29,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:30,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:30,383 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:30,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743132469] [2021-11-21 01:16:30,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743132469] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:30,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:30,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-21 01:16:30,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864775379] [2021-11-21 01:16:30,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:30,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-21 01:16:30,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:30,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-21 01:16:30,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-11-21 01:16:30,385 INFO L87 Difference]: Start difference. First operand 18488 states and 79011 transitions. Second operand has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:16:33,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:33,259 INFO L93 Difference]: Finished difference Result 20749 states and 88823 transitions. [2021-11-21 01:16:33,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-21 01:16:33,260 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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 63 [2021-11-21 01:16:33,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:33,364 INFO L225 Difference]: With dead ends: 20749 [2021-11-21 01:16:33,364 INFO L226 Difference]: Without dead ends: 20460 [2021-11-21 01:16:33,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=161, Invalid=1561, Unknown=0, NotChecked=0, Total=1722 [2021-11-21 01:16:33,365 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 521 mSDsluCounter, 3531 mSDsCounter, 0 mSdLazyCounter, 4039 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 1184 SdHoareTripleChecker+Invalid, 4067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 4039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:33,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [521 Valid, 1184 Invalid, 4067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 4039 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-21 01:16:33,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20460 states. [2021-11-21 01:16:33,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20460 to 18452. [2021-11-21 01:16:33,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18452 states, 18451 states have (on average 4.2741856809929) internal successors, (78863), 18451 states have internal predecessors, (78863), 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) [2021-11-21 01:16:34,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18452 states to 18452 states and 78863 transitions. [2021-11-21 01:16:34,010 INFO L78 Accepts]: Start accepts. Automaton has 18452 states and 78863 transitions. Word has length 63 [2021-11-21 01:16:34,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:34,010 INFO L470 AbstractCegarLoop]: Abstraction has 18452 states and 78863 transitions. [2021-11-21 01:16:34,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:16:34,011 INFO L276 IsEmpty]: Start isEmpty. Operand 18452 states and 78863 transitions. [2021-11-21 01:16:34,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:16:34,328 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:34,328 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:34,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-21 01:16:34,328 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:16:34,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:34,329 INFO L85 PathProgramCache]: Analyzing trace with hash 279393267, now seen corresponding path program 23 times [2021-11-21 01:16:34,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:34,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499949366] [2021-11-21 01:16:34,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:34,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:34,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:34,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:34,803 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:34,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499949366] [2021-11-21 01:16:34,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499949366] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:34,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:34,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-21 01:16:34,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63893711] [2021-11-21 01:16:34,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:34,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-21 01:16:34,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:34,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-21 01:16:34,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-11-21 01:16:34,804 INFO L87 Difference]: Start difference. First operand 18452 states and 78863 transitions. Second operand has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:16:37,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:37,150 INFO L93 Difference]: Finished difference Result 20913 states and 89257 transitions. [2021-11-21 01:16:37,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-21 01:16:37,151 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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 63 [2021-11-21 01:16:37,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:37,225 INFO L225 Difference]: With dead ends: 20913 [2021-11-21 01:16:37,225 INFO L226 Difference]: Without dead ends: 20642 [2021-11-21 01:16:37,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=149, Invalid=1411, Unknown=0, NotChecked=0, Total=1560 [2021-11-21 01:16:37,227 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 544 mSDsluCounter, 3559 mSDsCounter, 0 mSdLazyCounter, 4031 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 4058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 4031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:37,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [544 Valid, 1204 Invalid, 4058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 4031 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-21 01:16:37,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20642 states. [2021-11-21 01:16:37,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20642 to 18488. [2021-11-21 01:16:37,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18488 states, 18487 states have (on average 4.271920809217288) internal successors, (78975), 18487 states have internal predecessors, (78975), 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) [2021-11-21 01:16:37,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18488 states to 18488 states and 78975 transitions. [2021-11-21 01:16:37,963 INFO L78 Accepts]: Start accepts. Automaton has 18488 states and 78975 transitions. Word has length 63 [2021-11-21 01:16:37,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:37,963 INFO L470 AbstractCegarLoop]: Abstraction has 18488 states and 78975 transitions. [2021-11-21 01:16:37,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:16:37,964 INFO L276 IsEmpty]: Start isEmpty. Operand 18488 states and 78975 transitions. [2021-11-21 01:16:38,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:16:38,008 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:38,009 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:38,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-21 01:16:38,009 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:16:38,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:38,010 INFO L85 PathProgramCache]: Analyzing trace with hash -528378221, now seen corresponding path program 24 times [2021-11-21 01:16:38,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:38,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386796888] [2021-11-21 01:16:38,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:38,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:38,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:38,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:38,528 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:38,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386796888] [2021-11-21 01:16:38,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386796888] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:38,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:38,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-21 01:16:38,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100626480] [2021-11-21 01:16:38,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:38,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-21 01:16:38,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:38,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-21 01:16:38,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-11-21 01:16:38,530 INFO L87 Difference]: Start difference. First operand 18488 states and 78975 transitions. Second operand has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:16:41,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:41,383 INFO L93 Difference]: Finished difference Result 20641 states and 88415 transitions. [2021-11-21 01:16:41,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-21 01:16:41,384 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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 63 [2021-11-21 01:16:41,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:41,458 INFO L225 Difference]: With dead ends: 20641 [2021-11-21 01:16:41,458 INFO L226 Difference]: Without dead ends: 20300 [2021-11-21 01:16:41,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=143, Invalid=1339, Unknown=0, NotChecked=0, Total=1482 [2021-11-21 01:16:41,459 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 464 mSDsluCounter, 3501 mSDsCounter, 0 mSdLazyCounter, 3981 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 4004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 3981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:41,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [464 Valid, 1175 Invalid, 4004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 3981 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-21 01:16:41,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20300 states. [2021-11-21 01:16:42,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20300 to 18400. [2021-11-21 01:16:42,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18400 states, 18399 states have (on average 4.277569433121365) internal successors, (78703), 18399 states have internal predecessors, (78703), 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) [2021-11-21 01:16:42,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18400 states to 18400 states and 78703 transitions. [2021-11-21 01:16:42,300 INFO L78 Accepts]: Start accepts. Automaton has 18400 states and 78703 transitions. Word has length 63 [2021-11-21 01:16:42,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:42,300 INFO L470 AbstractCegarLoop]: Abstraction has 18400 states and 78703 transitions. [2021-11-21 01:16:42,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:16:42,300 INFO L276 IsEmpty]: Start isEmpty. Operand 18400 states and 78703 transitions. [2021-11-21 01:16:42,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:16:42,344 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:42,344 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:42,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-21 01:16:42,345 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:16:42,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:42,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1378717513, now seen corresponding path program 25 times [2021-11-21 01:16:42,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:42,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705129290] [2021-11-21 01:16:42,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:42,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:42,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:42,893 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:42,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705129290] [2021-11-21 01:16:42,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705129290] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:42,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:42,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-21 01:16:42,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616529035] [2021-11-21 01:16:42,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:42,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-21 01:16:42,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:42,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-21 01:16:42,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-11-21 01:16:42,895 INFO L87 Difference]: Start difference. First operand 18400 states and 78703 transitions. Second operand has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:16:47,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:47,275 INFO L93 Difference]: Finished difference Result 22944 states and 98316 transitions. [2021-11-21 01:16:47,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-21 01:16:47,276 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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 63 [2021-11-21 01:16:47,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:47,374 INFO L225 Difference]: With dead ends: 22944 [2021-11-21 01:16:47,374 INFO L226 Difference]: Without dead ends: 22332 [2021-11-21 01:16:47,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=277, Invalid=2915, Unknown=0, NotChecked=0, Total=3192 [2021-11-21 01:16:47,375 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 765 mSDsluCounter, 4953 mSDsCounter, 0 mSdLazyCounter, 5833 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 1619 SdHoareTripleChecker+Invalid, 5897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 5833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:47,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [765 Valid, 1619 Invalid, 5897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 5833 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-11-21 01:16:47,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22332 states. [2021-11-21 01:16:47,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22332 to 18440. [2021-11-21 01:16:47,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18440 states, 18439 states have (on average 4.275882640056402) internal successors, (78843), 18439 states have internal predecessors, (78843), 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) [2021-11-21 01:16:48,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18440 states to 18440 states and 78843 transitions. [2021-11-21 01:16:48,334 INFO L78 Accepts]: Start accepts. Automaton has 18440 states and 78843 transitions. Word has length 63 [2021-11-21 01:16:48,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:48,334 INFO L470 AbstractCegarLoop]: Abstraction has 18440 states and 78843 transitions. [2021-11-21 01:16:48,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:16:48,335 INFO L276 IsEmpty]: Start isEmpty. Operand 18440 states and 78843 transitions. [2021-11-21 01:16:48,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:16:48,374 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:48,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:48,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-21 01:16:48,375 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:16:48,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:48,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1433275701, now seen corresponding path program 26 times [2021-11-21 01:16:48,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:48,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510569373] [2021-11-21 01:16:48,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:48,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:48,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:48,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:48,882 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:48,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510569373] [2021-11-21 01:16:48,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510569373] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:48,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:48,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-21 01:16:48,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270375788] [2021-11-21 01:16:48,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:48,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-21 01:16:48,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:48,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-21 01:16:48,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-11-21 01:16:48,883 INFO L87 Difference]: Start difference. First operand 18440 states and 78843 transitions. Second operand has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:16:54,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:54,383 INFO L93 Difference]: Finished difference Result 31985 states and 138280 transitions. [2021-11-21 01:16:54,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-21 01:16:54,384 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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 63 [2021-11-21 01:16:54,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:54,505 INFO L225 Difference]: With dead ends: 31985 [2021-11-21 01:16:54,505 INFO L226 Difference]: Without dead ends: 31764 [2021-11-21 01:16:54,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1124 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=358, Invalid=4064, Unknown=0, NotChecked=0, Total=4422 [2021-11-21 01:16:54,507 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 921 mSDsluCounter, 6883 mSDsCounter, 0 mSdLazyCounter, 8439 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 2313 SdHoareTripleChecker+Invalid, 8505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 8439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:54,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [921 Valid, 2313 Invalid, 8505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 8439 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-11-21 01:16:54,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31764 states. [2021-11-21 01:16:55,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31764 to 18592. [2021-11-21 01:16:55,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18592 states, 18591 states have (on average 4.277284707654242) internal successors, (79519), 18591 states have internal predecessors, (79519), 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) [2021-11-21 01:16:55,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18592 states to 18592 states and 79519 transitions. [2021-11-21 01:16:55,344 INFO L78 Accepts]: Start accepts. Automaton has 18592 states and 79519 transitions. Word has length 63 [2021-11-21 01:16:55,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:55,345 INFO L470 AbstractCegarLoop]: Abstraction has 18592 states and 79519 transitions. [2021-11-21 01:16:55,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:16:55,345 INFO L276 IsEmpty]: Start isEmpty. Operand 18592 states and 79519 transitions. [2021-11-21 01:16:55,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-21 01:16:55,387 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:55,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:55,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-21 01:16:55,387 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-21 01:16:55,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:55,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1901463371, now seen corresponding path program 27 times [2021-11-21 01:16:55,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:55,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384386867] [2021-11-21 01:16:55,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:55,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:55,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:55,889 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:55,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384386867] [2021-11-21 01:16:55,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384386867] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:55,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:55,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-21 01:16:55,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369991315] [2021-11-21 01:16:55,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:55,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-21 01:16:55,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:55,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-21 01:16:55,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-11-21 01:16:55,891 INFO L87 Difference]: Start difference. First operand 18592 states and 79519 transitions. Second operand has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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) [2021-11-21 01:17:00,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:17:00,907 INFO L93 Difference]: Finished difference Result 29655 states and 128065 transitions. [2021-11-21 01:17:00,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-21 01:17:00,908 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 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 63 [2021-11-21 01:17:00,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:17:01,020 INFO L225 Difference]: With dead ends: 29655 [2021-11-21 01:17:01,021 INFO L226 Difference]: Without dead ends: 29422 [2021-11-21 01:17:01,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 744 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=281, Invalid=3025, Unknown=0, NotChecked=0, Total=3306 [2021-11-21 01:17:01,022 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 842 mSDsluCounter, 6414 mSDsCounter, 0 mSdLazyCounter, 7673 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 2211 SdHoareTripleChecker+Invalid, 7724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 7673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:17:01,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [842 Valid, 2211 Invalid, 7724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 7673 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-11-21 01:17:01,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29422 states.