./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-8.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_1d38e33f-2f36-4363-be18-9f6dfc2221bf/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d38e33f-2f36-4363-be18-9f6dfc2221bf/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_1d38e33f-2f36-4363-be18-9f6dfc2221bf/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d38e33f-2f36-4363-be18-9f6dfc2221bf/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d38e33f-2f36-4363-be18-9f6dfc2221bf/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_1d38e33f-2f36-4363-be18-9f6dfc2221bf/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 f02fd31f03f03300713de36d3982e392122375115e7a5509580eaaa38dd9026f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:40:08,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:40:08,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:40:08,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:40:08,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:40:08,492 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:40:08,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:40:08,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:40:08,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:40:08,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:40:08,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:40:08,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:40:08,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:40:08,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:40:08,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:40:08,530 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:40:08,534 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:40:08,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:40:08,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:40:08,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:40:08,552 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:40:08,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:40:08,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:40:08,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:40:08,569 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:40:08,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:40:08,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:40:08,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:40:08,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:40:08,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:40:08,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:40:08,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:40:08,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:40:08,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:40:08,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:40:08,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:40:08,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:40:08,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:40:08,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:40:08,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:40:08,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:40:08,591 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d38e33f-2f36-4363-be18-9f6dfc2221bf/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:40:08,649 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:40:08,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:40:08,650 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:40:08,651 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:40:08,659 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:40:08,660 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:40:08,660 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:40:08,660 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:40:08,660 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:40:08,661 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:40:08,662 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:40:08,663 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:40:08,663 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:40:08,663 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:40:08,663 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:40:08,664 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:40:08,664 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:40:08,664 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:40:08,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:40:08,666 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:40:08,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:40:08,666 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:40:08,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:40:08,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:40:08,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:40:08,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:40:08,670 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:40:08,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:40:08,671 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:40:08,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:40:08,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:40:08,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:40:08,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:40:08,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:40:08,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:40:08,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:40:08,674 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:40:08,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:40:08,674 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:40:08,674 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:40:08,675 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:40:08,675 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_1d38e33f-2f36-4363-be18-9f6dfc2221bf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d38e33f-2f36-4363-be18-9f6dfc2221bf/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f02fd31f03f03300713de36d3982e392122375115e7a5509580eaaa38dd9026f [2021-11-21 01:40:09,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:40:09,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:40:09,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:40:09,060 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:40:09,060 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:40:09,062 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d38e33f-2f36-4363-be18-9f6dfc2221bf/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c [2021-11-21 01:40:09,142 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d38e33f-2f36-4363-be18-9f6dfc2221bf/bin/utaipan-TEXQjIfE4P/data/e2561d5f1/598f29b438b44e619b988399ed50b735/FLAG276d5f309 [2021-11-21 01:40:09,724 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:40:09,724 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d38e33f-2f36-4363-be18-9f6dfc2221bf/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c [2021-11-21 01:40:09,740 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d38e33f-2f36-4363-be18-9f6dfc2221bf/bin/utaipan-TEXQjIfE4P/data/e2561d5f1/598f29b438b44e619b988399ed50b735/FLAG276d5f309 [2021-11-21 01:40:10,032 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d38e33f-2f36-4363-be18-9f6dfc2221bf/bin/utaipan-TEXQjIfE4P/data/e2561d5f1/598f29b438b44e619b988399ed50b735 [2021-11-21 01:40:10,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:40:10,037 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:40:10,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:40:10,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:40:10,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:40:10,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:40:10" (1/1) ... [2021-11-21 01:40:10,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d787e24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:10, skipping insertion in model container [2021-11-21 01:40:10,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:40:10" (1/1) ... [2021-11-21 01:40:10,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:40:10,083 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:40:10,390 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_1d38e33f-2f36-4363-be18-9f6dfc2221bf/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c[5274,5287] [2021-11-21 01:40:10,395 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:40:10,408 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:40:10,461 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_1d38e33f-2f36-4363-be18-9f6dfc2221bf/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c[5274,5287] [2021-11-21 01:40:10,462 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:40:10,479 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:40:10,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:10 WrapperNode [2021-11-21 01:40:10,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:40:10,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:40:10,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:40:10,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:40:10,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:10" (1/1) ... [2021-11-21 01:40:10,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:10" (1/1) ... [2021-11-21 01:40:10,574 INFO L137 Inliner]: procedures = 27, calls = 130, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 358 [2021-11-21 01:40:10,577 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:40:10,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:40:10,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:40:10,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:40:10,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:10" (1/1) ... [2021-11-21 01:40:10,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:10" (1/1) ... [2021-11-21 01:40:10,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:10" (1/1) ... [2021-11-21 01:40:10,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:10" (1/1) ... [2021-11-21 01:40:10,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:10" (1/1) ... [2021-11-21 01:40:10,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:10" (1/1) ... [2021-11-21 01:40:10,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:10" (1/1) ... [2021-11-21 01:40:10,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:40:10,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:40:10,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:40:10,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:40:10,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:10" (1/1) ... [2021-11-21 01:40:10,690 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:40:10,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d38e33f-2f36-4363-be18-9f6dfc2221bf/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:40:10,721 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d38e33f-2f36-4363-be18-9f6dfc2221bf/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:40:10,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d38e33f-2f36-4363-be18-9f6dfc2221bf/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:40:10,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:40:10,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:40:10,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:40:10,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:40:10,774 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-21 01:40:10,774 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-21 01:40:10,774 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-21 01:40:10,774 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-21 01:40:10,775 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-21 01:40:10,775 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-21 01:40:10,775 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-11-21 01:40:10,775 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-11-21 01:40:10,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:40:10,776 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-11-21 01:40:10,776 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-11-21 01:40:10,776 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-11-21 01:40:10,776 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-11-21 01:40:10,776 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2021-11-21 01:40:10,777 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2021-11-21 01:40:10,777 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2021-11-21 01:40:10,777 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2021-11-21 01:40:10,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-21 01:40:10,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-21 01:40:10,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:40:10,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:40:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:40:10,780 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 01:40:10,938 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:40:10,940 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:40:11,421 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:40:11,606 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:40:11,607 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-21 01:40:11,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:40:11 BoogieIcfgContainer [2021-11-21 01:40:11,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:40:11,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:40:11,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:40:11,617 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:40:11,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:40:10" (1/3) ... [2021-11-21 01:40:11,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c1c796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:40:11, skipping insertion in model container [2021-11-21 01:40:11,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:10" (2/3) ... [2021-11-21 01:40:11,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c1c796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:40:11, skipping insertion in model container [2021-11-21 01:40:11,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:40:11" (3/3) ... [2021-11-21 01:40:11,625 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-ticket-8.wvr.c [2021-11-21 01:40:11,632 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-21 01:40:11,633 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:40:11,633 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:40:11,633 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-21 01:40:11,737 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,737 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,737 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,738 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,738 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,738 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,738 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,739 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,739 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,739 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,739 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,739 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,740 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,740 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,740 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,740 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,741 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,741 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,741 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,741 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,742 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,742 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,742 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,742 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,743 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,743 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,743 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,743 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,744 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,744 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,744 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,744 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,744 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,745 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,745 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,745 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,746 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,746 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,746 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,746 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,746 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,747 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,747 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,747 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,747 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,748 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,748 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,769 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,770 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork6_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,770 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork6_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,771 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork6_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,771 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork6_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,771 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork6_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,771 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork6_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,772 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork6_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,772 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork6_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,772 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork6_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,773 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork6_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,773 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork6_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,773 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork6_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,774 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,774 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,774 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,775 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,775 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,775 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,776 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,776 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,776 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,776 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,777 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,777 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,777 WARN L322 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork4_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,778 WARN L322 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork4_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,778 WARN L322 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,778 WARN L322 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,778 WARN L322 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,779 WARN L322 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,779 WARN L322 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork4_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,779 WARN L322 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork4_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,780 WARN L322 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,780 WARN L322 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,780 WARN L322 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,781 WARN L322 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,781 WARN L322 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork7_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,782 WARN L322 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork7_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,782 WARN L322 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork7_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,782 WARN L322 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork7_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,782 WARN L322 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork7_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,783 WARN L322 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork7_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,783 WARN L322 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork7_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,783 WARN L322 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork7_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,784 WARN L322 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork7_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,784 WARN L322 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork7_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,784 WARN L322 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork7_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,785 WARN L322 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork7_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,788 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,789 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,789 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,789 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,789 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,790 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,791 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,791 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,792 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,792 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,792 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,792 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,793 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,794 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,794 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,794 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,795 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,795 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,796 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,796 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,796 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,797 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,797 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,797 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,798 WARN L322 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,798 WARN L322 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork4_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,799 WARN L322 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,799 WARN L322 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork4_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,799 WARN L322 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,800 WARN L322 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,802 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,802 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,803 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork6_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,803 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork6_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,803 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork6_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,804 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork6_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,804 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork6_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,804 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork6_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,805 WARN L322 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork7_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,806 WARN L322 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork7_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,806 WARN L322 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork7_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,806 WARN L322 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork7_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,807 WARN L322 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork7_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,807 WARN L322 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork7_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:40:11,813 INFO L148 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2021-11-21 01:40:11,870 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:40:11,878 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 01:40:11,879 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-21 01:40:11,903 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-21 01:40:11,920 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 257 places, 234 transitions, 532 flow [2021-11-21 01:40:11,924 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 257 places, 234 transitions, 532 flow [2021-11-21 01:40:11,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 257 places, 234 transitions, 532 flow [2021-11-21 01:40:12,109 INFO L129 PetriNetUnfolder]: 2/226 cut-off events. [2021-11-21 01:40:12,109 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-11-21 01:40:12,114 INFO L84 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 226 events. 2/226 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 105 event pairs, 0 based on Foata normal form. 0/223 useless extension candidates. Maximal degree in co-relation 177. Up to 2 conditions per place. [2021-11-21 01:40:12,122 INFO L116 LiptonReduction]: Number of co-enabled transitions 5502 [2021-11-21 01:40:32,082 INFO L131 LiptonReduction]: Checked pairs total: 14145 [2021-11-21 01:40:32,083 INFO L133 LiptonReduction]: Total number of compositions: 184 [2021-11-21 01:40:32,095 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 84 places, 59 transitions, 182 flow [2021-11-21 01:40:34,924 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 32802 states, 32801 states have (on average 5.667327215633669) internal successors, (185894), 32801 states have internal predecessors, (185894), 0 states have call successors, (0), 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 01:40:35,184 INFO L276 IsEmpty]: Start isEmpty. Operand has 32802 states, 32801 states have (on average 5.667327215633669) internal successors, (185894), 32801 states have internal predecessors, (185894), 0 states have call successors, (0), 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 01:40:36,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-21 01:40:36,055 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:40:36,056 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] [2021-11-21 01:40:36,056 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2021-11-21 01:40:36,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:40:36,080 INFO L85 PathProgramCache]: Analyzing trace with hash 722391897, now seen corresponding path program 1 times [2021-11-21 01:40:36,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:40:36,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116054268] [2021-11-21 01:40:36,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:40:36,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:40:37,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:40:37,911 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 01:40:37,912 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:40:37,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116054268] [2021-11-21 01:40:37,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116054268] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:40:37,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:40:37,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:40:37,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136578241] [2021-11-21 01:40:37,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:40:37,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 01:40:37,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:40:37,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 01:40:37,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:40:38,037 INFO L87 Difference]: Start difference. First operand has 32802 states, 32801 states have (on average 5.667327215633669) internal successors, (185894), 32801 states have internal predecessors, (185894), 0 states have call successors, (0), 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 6 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:40:40,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:40:40,705 INFO L93 Difference]: Finished difference Result 51205 states and 283581 transitions. [2021-11-21 01:40:40,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:40:40,711 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-21 01:40:40,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:40:41,660 INFO L225 Difference]: With dead ends: 51205 [2021-11-21 01:40:41,661 INFO L226 Difference]: Without dead ends: 38846 [2021-11-21 01:40:41,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:40:41,666 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 116 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:40:41,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 0 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-21 01:40:41,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38846 states. [2021-11-21 01:40:44,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38846 to 38846. [2021-11-21 01:40:44,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38846 states, 38845 states have (on average 5.540120993692882) internal successors, (215206), 38845 states have internal predecessors, (215206), 0 states have call successors, (0), 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 01:40:45,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38846 states to 38846 states and 215206 transitions. [2021-11-21 01:40:45,543 INFO L78 Accepts]: Start accepts. Automaton has 38846 states and 215206 transitions. Word has length 50 [2021-11-21 01:40:45,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:40:45,545 INFO L470 AbstractCegarLoop]: Abstraction has 38846 states and 215206 transitions. [2021-11-21 01:40:45,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:40:45,546 INFO L276 IsEmpty]: Start isEmpty. Operand 38846 states and 215206 transitions. [2021-11-21 01:40:45,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-21 01:40:45,880 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:40:45,880 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] [2021-11-21 01:40:45,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:40:45,881 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2021-11-21 01:40:45,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:40:45,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1621813261, now seen corresponding path program 2 times [2021-11-21 01:40:45,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:40:45,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985991500] [2021-11-21 01:40:45,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:40:45,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:40:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:40:46,678 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 01:40:46,679 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:40:46,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985991500] [2021-11-21 01:40:46,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985991500] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:40:46,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:40:46,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-21 01:40:46,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647778396] [2021-11-21 01:40:46,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:40:46,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-21 01:40:46,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:40:46,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-21 01:40:46,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:40:46,685 INFO L87 Difference]: Start difference. First operand 38846 states and 215206 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:40:49,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:40:49,625 INFO L93 Difference]: Finished difference Result 117078 states and 630015 transitions. [2021-11-21 01:40:49,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 01:40:49,636 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-21 01:40:49,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:40:51,055 INFO L225 Difference]: With dead ends: 117078 [2021-11-21 01:40:51,055 INFO L226 Difference]: Without dead ends: 117070 [2021-11-21 01:40:51,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-21 01:40:51,058 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 165 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:40:51,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 0 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-21 01:40:51,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117070 states. [2021-11-21 01:40:55,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117070 to 70126. [2021-11-21 01:40:55,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70126 states, 70125 states have (on average 5.480698752228164) internal successors, (384334), 70125 states have internal predecessors, (384334), 0 states have call successors, (0), 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 01:40:56,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70126 states to 70126 states and 384334 transitions. [2021-11-21 01:40:56,888 INFO L78 Accepts]: Start accepts. Automaton has 70126 states and 384334 transitions. Word has length 50 [2021-11-21 01:40:56,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:40:56,889 INFO L470 AbstractCegarLoop]: Abstraction has 70126 states and 384334 transitions. [2021-11-21 01:40:56,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:40:56,889 INFO L276 IsEmpty]: Start isEmpty. Operand 70126 states and 384334 transitions. [2021-11-21 01:40:57,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-21 01:40:57,146 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:40:57,146 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] [2021-11-21 01:40:57,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:40:57,147 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2021-11-21 01:40:57,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:40:57,148 INFO L85 PathProgramCache]: Analyzing trace with hash -220246167, now seen corresponding path program 3 times [2021-11-21 01:40:57,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:40:57,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418473460] [2021-11-21 01:40:57,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:40:57,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:40:57,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:40:57,456 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 01:40:57,456 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:40:57,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418473460] [2021-11-21 01:40:57,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418473460] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:40:57,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:40:57,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-21 01:40:57,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810033114] [2021-11-21 01:40:57,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:40:57,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 01:40:57,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:40:57,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 01:40:57,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:40:57,463 INFO L87 Difference]: Start difference. First operand 70126 states and 384334 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:41:01,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:01,534 INFO L93 Difference]: Finished difference Result 161176 states and 853610 transitions. [2021-11-21 01:41:01,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-21 01:41:01,534 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-21 01:41:01,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:03,757 INFO L225 Difference]: With dead ends: 161176 [2021-11-21 01:41:03,757 INFO L226 Difference]: Without dead ends: 161168 [2021-11-21 01:41:03,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-21 01:41:03,774 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 165 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:03,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 0 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-21 01:41:04,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161168 states. [2021-11-21 01:41:09,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161168 to 103100. [2021-11-21 01:41:09,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103100 states, 103099 states have (on average 5.418762548618318) internal successors, (558669), 103099 states have internal predecessors, (558669), 0 states have call successors, (0), 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 01:41:11,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103100 states to 103100 states and 558669 transitions. [2021-11-21 01:41:11,614 INFO L78 Accepts]: Start accepts. Automaton has 103100 states and 558669 transitions. Word has length 50 [2021-11-21 01:41:11,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:11,629 INFO L470 AbstractCegarLoop]: Abstraction has 103100 states and 558669 transitions. [2021-11-21 01:41:11,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:41:11,630 INFO L276 IsEmpty]: Start isEmpty. Operand 103100 states and 558669 transitions. [2021-11-21 01:41:12,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-21 01:41:12,150 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:12,150 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] [2021-11-21 01:41:12,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:41:12,150 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2021-11-21 01:41:12,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:12,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1703943205, now seen corresponding path program 4 times [2021-11-21 01:41:12,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:12,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302866603] [2021-11-21 01:41:12,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:12,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:12,498 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 01:41:12,498 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:12,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302866603] [2021-11-21 01:41:12,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302866603] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:12,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:12,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-21 01:41:12,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683108547] [2021-11-21 01:41:12,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:12,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-21 01:41:12,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:12,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-21 01:41:12,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-21 01:41:12,509 INFO L87 Difference]: Start difference. First operand 103100 states and 558669 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:41:15,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:15,880 INFO L93 Difference]: Finished difference Result 179078 states and 938799 transitions. [2021-11-21 01:41:15,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-21 01:41:15,880 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-21 01:41:15,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:18,392 INFO L225 Difference]: With dead ends: 179078 [2021-11-21 01:41:18,392 INFO L226 Difference]: Without dead ends: 179070 [2021-11-21 01:41:18,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-11-21 01:41:18,394 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 181 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:18,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 0 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-21 01:41:19,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179070 states. [2021-11-21 01:41:25,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179070 to 127734. [2021-11-21 01:41:27,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127734 states, 127733 states have (on average 5.37011578840237) internal successors, (685941), 127733 states have internal predecessors, (685941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)