./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 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408a29c-b310-4bc0-bbe5-574141b54529/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408a29c-b310-4bc0-bbe5-574141b54529/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408a29c-b310-4bc0-bbe5-574141b54529/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408a29c-b310-4bc0-bbe5-574141b54529/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408a29c-b310-4bc0-bbe5-574141b54529/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408a29c-b310-4bc0-bbe5-574141b54529/bin/utaipan-aC7eJsxGYH --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-9ad7fb2 [2021-11-03 03:44:35,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:44:35,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:44:35,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:44:35,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:44:35,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:44:35,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:44:35,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:44:35,773 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:44:35,780 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:44:35,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:44:35,783 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:44:35,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:44:35,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:44:35,788 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:44:35,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:44:35,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:44:35,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:44:35,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:44:35,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:44:35,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:44:35,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:44:35,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:44:35,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:44:35,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:44:35,826 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:44:35,827 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:44:35,829 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:44:35,829 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:44:35,831 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:44:35,832 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:44:35,833 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:44:35,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:44:35,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:44:35,837 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:44:35,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:44:35,838 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:44:35,838 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:44:35,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:44:35,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:44:35,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:44:35,841 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408a29c-b310-4bc0-bbe5-574141b54529/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 03:44:35,886 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:44:35,890 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:44:35,891 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:44:35,891 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:44:35,891 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:44:35,892 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:44:35,892 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:44:35,892 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:44:35,898 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:44:35,898 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:44:35,900 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:44:35,900 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:44:35,900 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:44:35,900 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:44:35,901 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:44:35,901 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:44:35,902 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 03:44:35,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:44:35,902 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 03:44:35,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:44:35,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:44:35,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:44:35,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:44:35,903 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:44:35,903 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 03:44:35,904 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:44:35,904 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:44:35,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:44:35,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:44:35,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:44:35,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:44:35,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:44:35,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:44:35,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:44:35,908 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:44:35,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:44:35,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:44:35,908 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:44:35,909 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:44:35,909 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_7408a29c-b310-4bc0-bbe5-574141b54529/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408a29c-b310-4bc0-bbe5-574141b54529/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f02fd31f03f03300713de36d3982e392122375115e7a5509580eaaa38dd9026f [2021-11-03 03:44:36,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:44:36,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:44:36,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:44:36,220 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:44:36,221 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:44:36,222 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408a29c-b310-4bc0-bbe5-574141b54529/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c [2021-11-03 03:44:36,286 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408a29c-b310-4bc0-bbe5-574141b54529/bin/utaipan-aC7eJsxGYH/data/e6098a79c/3b0ae45653b444358a199e6b08e5a780/FLAGee3f90021 [2021-11-03 03:44:36,718 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:44:36,718 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408a29c-b310-4bc0-bbe5-574141b54529/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c [2021-11-03 03:44:36,726 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408a29c-b310-4bc0-bbe5-574141b54529/bin/utaipan-aC7eJsxGYH/data/e6098a79c/3b0ae45653b444358a199e6b08e5a780/FLAGee3f90021 [2021-11-03 03:44:37,108 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408a29c-b310-4bc0-bbe5-574141b54529/bin/utaipan-aC7eJsxGYH/data/e6098a79c/3b0ae45653b444358a199e6b08e5a780 [2021-11-03 03:44:37,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:44:37,112 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:44:37,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:44:37,114 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:44:37,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:44:37,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:44:37" (1/1) ... [2021-11-03 03:44:37,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d346e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:37, skipping insertion in model container [2021-11-03 03:44:37,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:44:37" (1/1) ... [2021-11-03 03:44:37,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:44:37,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:44:37,367 WARN L228 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_7408a29c-b310-4bc0-bbe5-574141b54529/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c[5274,5287] [2021-11-03 03:44:37,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:44:37,379 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:44:37,418 WARN L228 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_7408a29c-b310-4bc0-bbe5-574141b54529/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c[5274,5287] [2021-11-03 03:44:37,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:44:37,435 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:44:37,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:37 WrapperNode [2021-11-03 03:44:37,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:44:37,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:44:37,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:44:37,437 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:44:37,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:37" (1/1) ... [2021-11-03 03:44:37,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:37" (1/1) ... [2021-11-03 03:44:37,498 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:44:37,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:44:37,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:44:37,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:44:37,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:37" (1/1) ... [2021-11-03 03:44:37,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:37" (1/1) ... [2021-11-03 03:44:37,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:37" (1/1) ... [2021-11-03 03:44:37,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:37" (1/1) ... [2021-11-03 03:44:37,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:37" (1/1) ... [2021-11-03 03:44:37,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:37" (1/1) ... [2021-11-03 03:44:37,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:37" (1/1) ... [2021-11-03 03:44:37,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:44:37,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:44:37,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:44:37,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:44:37,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:37" (1/1) ... [2021-11-03 03:44:37,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:44:37,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408a29c-b310-4bc0-bbe5-574141b54529/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:44:37,590 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408a29c-b310-4bc0-bbe5-574141b54529/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:44:37,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7408a29c-b310-4bc0-bbe5-574141b54529/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:44:37,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:44:37,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 03:44:37,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 03:44:37,627 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-03 03:44:37,627 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-03 03:44:37,627 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-03 03:44:37,628 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-03 03:44:37,628 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-03 03:44:37,628 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-03 03:44:37,628 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-11-03 03:44:37,629 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-11-03 03:44:37,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 03:44:37,629 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-11-03 03:44:37,629 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-11-03 03:44:37,629 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-11-03 03:44:37,630 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-11-03 03:44:37,630 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2021-11-03 03:44:37,630 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2021-11-03 03:44:37,630 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2021-11-03 03:44:37,630 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2021-11-03 03:44:37,631 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-03 03:44:37,631 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-03 03:44:37,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:44:37,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:44:37,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:44:37,633 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-03 03:44:38,444 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:44:38,445 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-11-03 03:44:38,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:44:38 BoogieIcfgContainer [2021-11-03 03:44:38,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:44:38,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:44:38,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:44:38,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:44:38,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:44:37" (1/3) ... [2021-11-03 03:44:38,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6197ba6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:44:38, skipping insertion in model container [2021-11-03 03:44:38,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:37" (2/3) ... [2021-11-03 03:44:38,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6197ba6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:44:38, skipping insertion in model container [2021-11-03 03:44:38,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:44:38" (3/3) ... [2021-11-03 03:44:38,458 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-ticket-8.wvr.c [2021-11-03 03:44:38,469 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-03 03:44:38,469 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:44:38,469 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 03:44:38,470 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-03 03:44:38,525 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork7_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,525 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork7_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,526 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork7_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,526 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork7_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,526 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork7_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,526 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork7_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,527 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork7_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,527 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork7_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,527 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork7_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,527 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork7_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,528 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork7_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,528 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork7_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,528 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,529 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,529 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,529 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,529 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,529 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,530 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,530 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,530 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,530 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,531 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,531 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,531 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork5_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,531 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork5_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,532 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork5_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,532 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork5_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,532 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork5_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,532 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork5_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,533 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork5_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,533 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork5_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,533 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,533 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,533 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,534 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,534 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,534 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,535 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,535 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,535 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,535 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,536 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,536 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,536 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,536 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,536 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,537 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,537 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,537 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,537 WARN L313 ript$VariableManager]: TermVariabe thread5Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,538 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,538 WARN L313 ript$VariableManager]: TermVariabe thread5Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,538 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,538 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,539 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,539 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,539 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,539 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,539 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,540 WARN L313 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork6_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,540 WARN L313 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork6_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,540 WARN L313 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork6_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,540 WARN L313 ript$VariableManager]: TermVariabe thread6Thread1of1ForFork6_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,541 WARN L313 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork6_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,541 WARN L313 ript$VariableManager]: TermVariabe thread6Thread1of1ForFork6_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,541 WARN L313 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork6_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,541 WARN L313 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork6_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,542 WARN L313 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork6_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,542 WARN L313 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork6_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,542 WARN L313 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork6_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,542 WARN L313 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork6_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,543 WARN L313 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,543 WARN L313 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,543 WARN L313 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,543 WARN L313 ript$VariableManager]: TermVariabe thread7Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,544 WARN L313 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,544 WARN L313 ript$VariableManager]: TermVariabe thread7Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,544 WARN L313 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,544 WARN L313 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,545 WARN L313 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,545 WARN L313 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,545 WARN L313 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,545 WARN L313 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,546 WARN L313 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork4_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,546 WARN L313 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork4_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,546 WARN L313 ript$VariableManager]: TermVariabe thread8Thread1of1ForFork4_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,546 WARN L313 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork4_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,546 WARN L313 ript$VariableManager]: TermVariabe thread8Thread1of1ForFork4_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,547 WARN L313 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork4_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,547 WARN L313 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork4_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,547 WARN L313 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork4_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,547 WARN L313 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,548 WARN L313 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,548 WARN L313 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,548 WARN L313 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,551 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,551 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,551 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,552 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,552 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,552 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,554 WARN L313 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,554 WARN L313 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,554 WARN L313 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,555 WARN L313 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,555 WARN L313 ript$VariableManager]: TermVariabe |thread7Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,555 WARN L313 ript$VariableManager]: TermVariabe thread7Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,557 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,557 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,558 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,558 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,558 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,558 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,559 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,560 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,560 WARN L313 ript$VariableManager]: TermVariabe thread5Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,560 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,560 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,561 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,562 WARN L313 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork4_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,563 WARN L313 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,563 WARN L313 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork4_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,563 WARN L313 ript$VariableManager]: TermVariabe thread8Thread1of1ForFork4_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,563 WARN L313 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,563 WARN L313 ript$VariableManager]: TermVariabe |thread8Thread1of1ForFork4_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,565 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork5_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,566 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,566 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork5_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,566 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork5_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,566 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork5_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,566 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,568 WARN L313 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork6_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,568 WARN L313 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork6_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,568 WARN L313 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork6_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,569 WARN L313 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork6_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,569 WARN L313 ript$VariableManager]: TermVariabe thread6Thread1of1ForFork6_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,569 WARN L313 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork6_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,571 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork7_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,571 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork7_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,571 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork7_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,571 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork7_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,572 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork7_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,572 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork7_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 03:44:38,609 INFO L148 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2021-11-03 03:44:38,667 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:44:38,681 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 [2021-11-03 03:44:38,682 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-03 03:44:38,706 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-03 03:44:38,716 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 249 places, 226 transitions, 516 flow [2021-11-03 03:44:38,719 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 249 places, 226 transitions, 516 flow [2021-11-03 03:44:38,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 249 places, 226 transitions, 516 flow [2021-11-03 03:44:38,812 INFO L129 PetriNetUnfolder]: 2/218 cut-off events. [2021-11-03 03:44:38,812 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-11-03 03:44:38,816 INFO L84 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 218 events. 2/218 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. 0/215 useless extension candidates. Maximal degree in co-relation 172. Up to 2 conditions per place. [2021-11-03 03:44:38,823 INFO L116 LiptonReduction]: Number of co-enabled transitions 5502 [2021-11-03 03:44:55,262 INFO L131 LiptonReduction]: Checked pairs total: 14214 [2021-11-03 03:44:55,262 INFO L133 LiptonReduction]: Total number of compositions: 173 [2021-11-03 03:44:55,270 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 84 places, 59 transitions, 182 flow [2021-11-03 03:44:57,539 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) [2021-11-03 03:44:57,629 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) [2021-11-03 03:44:58,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-03 03:44:58,298 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:44:58,298 INFO L513 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] [2021-11-03 03:44:58,299 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)] === [2021-11-03 03:44:58,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:44:58,304 INFO L85 PathProgramCache]: Analyzing trace with hash 2039774785, now seen corresponding path program 1 times [2021-11-03 03:44:58,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:44:58,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96894981] [2021-11-03 03:44:58,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:44:58,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:44:59,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:44:59,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:44:59,401 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:44:59,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96894981] [2021-11-03 03:44:59,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96894981] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:44:59,402 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:44:59,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-03 03:44:59,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321192636] [2021-11-03 03:44:59,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 03:44:59,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:44:59,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 03:44:59,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-03 03:44:59,491 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 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) [2021-11-03 03:45:02,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:45:02,388 INFO L93 Difference]: Finished difference Result 107678 states and 590647 transitions. [2021-11-03 03:45:02,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 03:45:02,390 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 [2021-11-03 03:45:02,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:45:04,056 INFO L225 Difference]: With dead ends: 107678 [2021-11-03 03:45:04,056 INFO L226 Difference]: Without dead ends: 107678 [2021-11-03 03:45:04,058 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-03 03:45:04,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107678 states. [2021-11-03 03:45:08,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107678 to 57434. [2021-11-03 03:45:08,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57434 states, 57433 states have (on average 5.641564953946338) internal successors, (324012), 57433 states have internal predecessors, (324012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:45:08,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57434 states to 57434 states and 324012 transitions. [2021-11-03 03:45:08,994 INFO L78 Accepts]: Start accepts. Automaton has 57434 states and 324012 transitions. Word has length 50 [2021-11-03 03:45:08,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:45:08,997 INFO L470 AbstractCegarLoop]: Abstraction has 57434 states and 324012 transitions. [2021-11-03 03:45:08,998 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) [2021-11-03 03:45:08,998 INFO L276 IsEmpty]: Start isEmpty. Operand 57434 states and 324012 transitions. [2021-11-03 03:45:09,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-03 03:45:09,971 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:45:09,972 INFO L513 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] [2021-11-03 03:45:09,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 03:45:09,972 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)] === [2021-11-03 03:45:09,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:45:09,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1949991547, now seen corresponding path program 2 times [2021-11-03 03:45:09,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:45:09,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902504755] [2021-11-03 03:45:09,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:45:09,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:45:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:45:10,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:45:10,329 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:45:10,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902504755] [2021-11-03 03:45:10,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902504755] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:45:10,330 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:45:10,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-03 03:45:10,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852240329] [2021-11-03 03:45:10,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 03:45:10,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:45:10,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 03:45:10,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:45:10,344 INFO L87 Difference]: Start difference. First operand 57434 states and 324012 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) [2021-11-03 03:45:12,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:45:12,381 INFO L93 Difference]: Finished difference Result 130672 states and 713060 transitions. [2021-11-03 03:45:12,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 03:45:12,381 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 [2021-11-03 03:45:12,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:45:13,937 INFO L225 Difference]: With dead ends: 130672 [2021-11-03 03:45:13,938 INFO L226 Difference]: Without dead ends: 130672 [2021-11-03 03:45:13,938 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-03 03:45:14,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130672 states. [2021-11-03 03:45:17,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130672 to 87712. [2021-11-03 03:45:18,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87712 states, 87711 states have (on average 5.547856027180171) internal successors, (486608), 87711 states have internal predecessors, (486608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:45:19,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87712 states to 87712 states and 486608 transitions. [2021-11-03 03:45:19,120 INFO L78 Accepts]: Start accepts. Automaton has 87712 states and 486608 transitions. Word has length 50 [2021-11-03 03:45:19,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:45:19,120 INFO L470 AbstractCegarLoop]: Abstraction has 87712 states and 486608 transitions. [2021-11-03 03:45:19,121 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) [2021-11-03 03:45:19,121 INFO L276 IsEmpty]: Start isEmpty. Operand 87712 states and 486608 transitions. [2021-11-03 03:45:19,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-03 03:45:19,381 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:45:19,381 INFO L513 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] [2021-11-03 03:45:19,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 03:45:19,382 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)] === [2021-11-03 03:45:19,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:45:19,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1329787549, now seen corresponding path program 3 times [2021-11-03 03:45:19,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:45:19,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137645646] [2021-11-03 03:45:19,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:45:19,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:45:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:45:19,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:45:19,641 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:45:19,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137645646] [2021-11-03 03:45:19,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137645646] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:45:19,642 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:45:19,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-03 03:45:19,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587407038] [2021-11-03 03:45:19,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 03:45:19,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:45:19,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 03:45:19,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-03 03:45:19,649 INFO L87 Difference]: Start difference. First operand 87712 states and 486608 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) [2021-11-03 03:45:22,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:45:22,702 INFO L93 Difference]: Finished difference Result 152442 states and 821516 transitions. [2021-11-03 03:45:22,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 03:45:22,703 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 [2021-11-03 03:45:22,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:45:23,834 INFO L225 Difference]: With dead ends: 152442 [2021-11-03 03:45:23,835 INFO L226 Difference]: Without dead ends: 152442 [2021-11-03 03:45:23,835 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-03 03:45:24,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152442 states. [2021-11-03 03:45:30,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152442 to 113642. [2021-11-03 03:45:30,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113642 states, 113641 states have (on average 5.47816369092141) internal successors, (622544), 113641 states have internal predecessors, (622544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:45:30,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113642 states to 113642 states and 622544 transitions. [2021-11-03 03:45:30,950 INFO L78 Accepts]: Start accepts. Automaton has 113642 states and 622544 transitions. Word has length 50 [2021-11-03 03:45:30,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:45:30,950 INFO L470 AbstractCegarLoop]: Abstraction has 113642 states and 622544 transitions. [2021-11-03 03:45:30,950 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) [2021-11-03 03:45:30,951 INFO L276 IsEmpty]: Start isEmpty. Operand 113642 states and 622544 transitions. [2021-11-03 03:45:32,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-03 03:45:32,169 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:45:32,170 INFO L513 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] [2021-11-03 03:45:32,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 03:45:32,170 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)] === [2021-11-03 03:45:32,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:45:32,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1863108125, now seen corresponding path program 4 times [2021-11-03 03:45:32,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:45:32,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409878772] [2021-11-03 03:45:32,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:45:32,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:45:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:45:32,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:45:32,480 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:45:32,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409878772] [2021-11-03 03:45:32,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409878772] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:45:32,482 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:45:32,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-03 03:45:32,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792834338] [2021-11-03 03:45:32,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 03:45:32,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:45:32,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 03:45:32,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-03 03:45:32,484 INFO L87 Difference]: Start difference. First operand 113642 states and 622544 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) [2021-11-03 03:45:35,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:45:35,325 INFO L93 Difference]: Finished difference Result 196430 states and 1027515 transitions. [2021-11-03 03:45:35,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-03 03:45:35,325 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 [2021-11-03 03:45:35,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:45:37,753 INFO L225 Difference]: With dead ends: 196430 [2021-11-03 03:45:37,753 INFO L226 Difference]: Without dead ends: 196430 [2021-11-03 03:45:37,753 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-11-03 03:45:38,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196430 states.