./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/reorder_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bde2ea3-a0cc-4821-a208-616365fee033/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bde2ea3-a0cc-4821-a208-616365fee033/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bde2ea3-a0cc-4821-a208-616365fee033/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bde2ea3-a0cc-4821-a208-616365fee033/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/reorder_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bde2ea3-a0cc-4821-a208-616365fee033/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bde2ea3-a0cc-4821-a208-616365fee033/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7c8e5f65b78a025b6376ca00ad63a807363d8e09dfbfc133c782b166d87996a6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 01:09:17,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:09:17,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:09:17,627 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:09:17,628 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:09:17,629 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:09:17,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:09:17,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:09:17,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:09:17,637 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:09:17,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:09:17,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:09:17,641 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:09:17,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:09:17,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:09:17,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:09:17,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:09:17,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:09:17,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:09:17,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:09:17,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:09:17,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:09:17,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:09:17,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:09:17,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:09:17,668 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:09:17,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:09:17,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:09:17,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:09:17,673 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:09:17,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:09:17,675 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:09:17,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:09:17,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:09:17,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:09:17,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:09:17,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:09:17,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:09:17,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:09:17,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:09:17,685 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:09:17,686 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bde2ea3-a0cc-4821-a208-616365fee033/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 01:09:17,717 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:09:17,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:09:17,718 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:09:17,718 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:09:17,719 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:09:17,720 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:09:17,720 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:09:17,720 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:09:17,721 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:09:17,721 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 01:09:17,722 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:09:17,722 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:09:17,722 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 01:09:17,723 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 01:09:17,723 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:09:17,724 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 01:09:17,724 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 01:09:17,724 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 01:09:17,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:09:17,726 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 01:09:17,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 01:09:17,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 01:09:17,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:09:17,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:09:17,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:09:17,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:09:17,728 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 01:09:17,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:09:17,729 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:09:17,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:09:17,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:09:17,730 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:09:17,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:09:17,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:09:17,731 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 01:09:17,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:09:17,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:09:17,732 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 01:09:17,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 01:09:17,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:09:17,733 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:09:17,733 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bde2ea3-a0cc-4821-a208-616365fee033/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bde2ea3-a0cc-4821-a208-616365fee033/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c8e5f65b78a025b6376ca00ad63a807363d8e09dfbfc133c782b166d87996a6 [2022-11-26 01:09:18,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:09:18,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:09:18,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:09:18,069 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:09:18,070 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:09:18,071 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bde2ea3-a0cc-4821-a208-616365fee033/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread/reorder_2.i [2022-11-26 01:09:21,695 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:09:22,093 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:09:22,094 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bde2ea3-a0cc-4821-a208-616365fee033/sv-benchmarks/c/pthread/reorder_2.i [2022-11-26 01:09:22,117 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bde2ea3-a0cc-4821-a208-616365fee033/bin/utaipan-ByfvJB40ur/data/6261aae07/e821577d6954432d9daa48ae85206145/FLAG821c83e2d [2022-11-26 01:09:22,144 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bde2ea3-a0cc-4821-a208-616365fee033/bin/utaipan-ByfvJB40ur/data/6261aae07/e821577d6954432d9daa48ae85206145 [2022-11-26 01:09:22,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:09:22,149 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:09:22,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:09:22,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:09:22,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:09:22,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:09:22" (1/1) ... [2022-11-26 01:09:22,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ba9f078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:22, skipping insertion in model container [2022-11-26 01:09:22,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:09:22" (1/1) ... [2022-11-26 01:09:22,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:09:22,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:09:23,073 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 01:09:23,082 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 01:09:23,088 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 01:09:23,091 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 01:09:23,098 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 01:09:23,101 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 01:09:23,102 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bde2ea3-a0cc-4821-a208-616365fee033/sv-benchmarks/c/pthread/reorder_2.i[59793,59806] [2022-11-26 01:09:23,108 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:09:23,119 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:09:23,168 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 01:09:23,178 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 01:09:23,179 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 01:09:23,181 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 01:09:23,182 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 01:09:23,185 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 01:09:23,186 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bde2ea3-a0cc-4821-a208-616365fee033/sv-benchmarks/c/pthread/reorder_2.i[59793,59806] [2022-11-26 01:09:23,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:09:23,266 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:09:23,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:23 WrapperNode [2022-11-26 01:09:23,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:09:23,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:09:23,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:09:23,268 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:09:23,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:23" (1/1) ... [2022-11-26 01:09:23,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:23" (1/1) ... [2022-11-26 01:09:23,319 INFO L138 Inliner]: procedures = 370, calls = 36, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 135 [2022-11-26 01:09:23,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:09:23,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:09:23,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:09:23,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:09:23,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:23" (1/1) ... [2022-11-26 01:09:23,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:23" (1/1) ... [2022-11-26 01:09:23,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:23" (1/1) ... [2022-11-26 01:09:23,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:23" (1/1) ... [2022-11-26 01:09:23,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:23" (1/1) ... [2022-11-26 01:09:23,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:23" (1/1) ... [2022-11-26 01:09:23,351 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:23" (1/1) ... [2022-11-26 01:09:23,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:23" (1/1) ... [2022-11-26 01:09:23,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:09:23,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:09:23,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:09:23,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:09:23,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:23" (1/1) ... [2022-11-26 01:09:23,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:09:23,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bde2ea3-a0cc-4821-a208-616365fee033/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:09:23,413 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bde2ea3-a0cc-4821-a208-616365fee033/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:09:23,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bde2ea3-a0cc-4821-a208-616365fee033/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:09:23,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 01:09:23,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 01:09:23,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 01:09:23,452 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2022-11-26 01:09:23,453 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2022-11-26 01:09:23,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 01:09:23,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 01:09:23,453 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2022-11-26 01:09:23,453 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2022-11-26 01:09:23,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 01:09:23,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:09:23,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:09:23,455 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 01:09:23,700 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:09:23,702 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:09:24,125 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:09:24,137 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:09:24,137 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-26 01:09:24,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:09:24 BoogieIcfgContainer [2022-11-26 01:09:24,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:09:24,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:09:24,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:09:24,146 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:09:24,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:09:22" (1/3) ... [2022-11-26 01:09:24,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@768f0743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:09:24, skipping insertion in model container [2022-11-26 01:09:24,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:23" (2/3) ... [2022-11-26 01:09:24,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@768f0743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:09:24, skipping insertion in model container [2022-11-26 01:09:24,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:09:24" (3/3) ... [2022-11-26 01:09:24,156 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_2.i [2022-11-26 01:09:24,182 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 01:09:24,205 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:09:24,206 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 01:09:24,206 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 01:09:24,302 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-26 01:09:24,365 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 01:09:24,395 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 157 transitions, 336 flow [2022-11-26 01:09:24,400 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 157 transitions, 336 flow [2022-11-26 01:09:24,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 157 transitions, 336 flow [2022-11-26 01:09:24,612 INFO L130 PetriNetUnfolder]: 35/333 cut-off events. [2022-11-26 01:09:24,612 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-26 01:09:24,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 333 events. 35/333 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1139 event pairs, 0 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 174. Up to 8 conditions per place. [2022-11-26 01:09:24,629 INFO L119 LiptonReduction]: Number of co-enabled transitions 2234 [2022-11-26 01:09:36,685 INFO L134 LiptonReduction]: Checked pairs total: 3354 [2022-11-26 01:09:36,685 INFO L136 LiptonReduction]: Total number of compositions: 163 [2022-11-26 01:09:36,696 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 27 transitions, 76 flow [2022-11-26 01:09:36,726 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 119 states, 110 states have (on average 2.036363636363636) internal successors, (224), 118 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:36,751 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:09:36,759 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@671a4f34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:09:36,760 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-26 01:09:36,763 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 110 states have (on average 2.036363636363636) internal successors, (224), 118 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:36,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 01:09:36,782 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:09:36,783 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 01:09:36,783 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-26 01:09:36,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:09:36,790 INFO L85 PathProgramCache]: Analyzing trace with hash 554735323, now seen corresponding path program 1 times [2022-11-26 01:09:36,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:09:36,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503284268] [2022-11-26 01:09:36,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:09:36,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:09:37,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:09:37,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:09:37,240 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:09:37,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503284268] [2022-11-26 01:09:37,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503284268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:09:37,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:09:37,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 01:09:37,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669131406] [2022-11-26 01:09:37,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:09:37,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:09:37,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:09:37,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:09:37,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:09:37,303 INFO L87 Difference]: Start difference. First operand has 119 states, 110 states have (on average 2.036363636363636) internal successors, (224), 118 states have internal predecessors, (224), 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 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:37,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:09:37,406 INFO L93 Difference]: Finished difference Result 111 states and 194 transitions. [2022-11-26 01:09:37,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:09:37,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-11-26 01:09:37,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:09:37,419 INFO L225 Difference]: With dead ends: 111 [2022-11-26 01:09:37,419 INFO L226 Difference]: Without dead ends: 106 [2022-11-26 01:09:37,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:09:37,424 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 12 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 01:09:37,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 8 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 01:09:37,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-26 01:09:37,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2022-11-26 01:09:37,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 98 states have (on average 1.9285714285714286) internal successors, (189), 105 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:37,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 189 transitions. [2022-11-26 01:09:37,475 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 189 transitions. Word has length 5 [2022-11-26 01:09:37,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:09:37,476 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 189 transitions. [2022-11-26 01:09:37,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:37,477 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 189 transitions. [2022-11-26 01:09:37,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 01:09:37,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:09:37,478 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-26 01:09:37,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 01:09:37,479 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-26 01:09:37,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:09:37,479 INFO L85 PathProgramCache]: Analyzing trace with hash 28072665, now seen corresponding path program 1 times [2022-11-26 01:09:37,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:09:37,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466151101] [2022-11-26 01:09:37,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:09:37,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:09:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:09:37,533 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 01:09:37,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:09:37,590 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 01:09:37,590 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 01:09:37,592 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2022-11-26 01:09:37,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-11-26 01:09:37,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-11-26 01:09:37,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-11-26 01:09:37,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 01:09:37,599 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-26 01:09:37,601 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-26 01:09:37,602 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-26 01:09:37,629 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-26 01:09:37,633 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 01:09:37,634 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 166 places, 177 transitions, 402 flow [2022-11-26 01:09:37,634 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 166 places, 177 transitions, 402 flow [2022-11-26 01:09:37,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 166 places, 177 transitions, 402 flow [2022-11-26 01:09:37,883 INFO L130 PetriNetUnfolder]: 147/1072 cut-off events. [2022-11-26 01:09:37,884 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-11-26 01:09:37,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1169 conditions, 1072 events. 147/1072 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5595 event pairs, 2 based on Foata normal form. 0/932 useless extension candidates. Maximal degree in co-relation 624. Up to 32 conditions per place. [2022-11-26 01:09:37,914 INFO L119 LiptonReduction]: Number of co-enabled transitions 5132 [2022-11-26 01:09:49,753 INFO L134 LiptonReduction]: Checked pairs total: 10471 [2022-11-26 01:09:49,754 INFO L136 LiptonReduction]: Total number of compositions: 172 [2022-11-26 01:09:49,755 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 39 transitions, 126 flow [2022-11-26 01:09:49,896 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2267 states, 2228 states have (on average 3.0978456014362656) internal successors, (6902), 2266 states have internal predecessors, (6902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:49,898 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:09:49,899 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@671a4f34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:09:49,899 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-26 01:09:49,907 INFO L276 IsEmpty]: Start isEmpty. Operand has 2267 states, 2228 states have (on average 3.0978456014362656) internal successors, (6902), 2266 states have internal predecessors, (6902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:49,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 01:09:49,908 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:09:49,908 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 01:09:49,909 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-26 01:09:49,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:09:49,910 INFO L85 PathProgramCache]: Analyzing trace with hash 904859108, now seen corresponding path program 1 times [2022-11-26 01:09:49,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:09:49,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128939740] [2022-11-26 01:09:49,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:09:49,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:09:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:09:49,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:09:49,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:09:49,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128939740] [2022-11-26 01:09:49,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128939740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:09:49,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:09:49,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 01:09:49,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400762451] [2022-11-26 01:09:49,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:09:49,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:09:49,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:09:49,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:09:49,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:09:49,999 INFO L87 Difference]: Start difference. First operand has 2267 states, 2228 states have (on average 3.0978456014362656) internal successors, (6902), 2266 states have internal predecessors, (6902), 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 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:50,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:09:50,159 INFO L93 Difference]: Finished difference Result 2203 states and 6526 transitions. [2022-11-26 01:09:50,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:09:50,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-11-26 01:09:50,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:09:50,192 INFO L225 Difference]: With dead ends: 2203 [2022-11-26 01:09:50,192 INFO L226 Difference]: Without dead ends: 2170 [2022-11-26 01:09:50,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:09:50,194 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 25 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 01:09:50,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 12 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 01:09:50,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2170 states. [2022-11-26 01:09:50,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2170 to 2170. [2022-11-26 01:09:50,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 2134 states have (on average 3.036551077788191) internal successors, (6480), 2169 states have internal predecessors, (6480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:50,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 6480 transitions. [2022-11-26 01:09:50,332 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 6480 transitions. Word has length 5 [2022-11-26 01:09:50,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:09:50,332 INFO L495 AbstractCegarLoop]: Abstraction has 2170 states and 6480 transitions. [2022-11-26 01:09:50,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:50,333 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 6480 transitions. [2022-11-26 01:09:50,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 01:09:50,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:09:50,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:09:50,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 01:09:50,334 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-26 01:09:50,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:09:50,335 INFO L85 PathProgramCache]: Analyzing trace with hash 2038041010, now seen corresponding path program 1 times [2022-11-26 01:09:50,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:09:50,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309438507] [2022-11-26 01:09:50,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:09:50,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:09:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:09:50,371 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 01:09:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:09:50,418 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 01:09:50,418 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 01:09:50,418 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-11-26 01:09:50,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-11-26 01:09:50,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-11-26 01:09:50,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-11-26 01:09:50,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-11-26 01:09:50,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 01:09:50,420 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-26 01:09:50,425 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-11-26 01:09:50,425 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 01:09:50,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 01:09:50 BasicIcfg [2022-11-26 01:09:50,475 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 01:09:50,475 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 01:09:50,476 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 01:09:50,476 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 01:09:50,477 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:09:24" (3/4) ... [2022-11-26 01:09:50,479 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-26 01:09:50,558 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bde2ea3-a0cc-4821-a208-616365fee033/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 01:09:50,558 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 01:09:50,559 INFO L158 Benchmark]: Toolchain (without parser) took 28410.21ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 144.8MB in the beginning and 71.1MB in the end (delta: 73.7MB). Peak memory consumption was 110.8MB. Max. memory is 16.1GB. [2022-11-26 01:09:50,560 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 134.2MB. Free memory is still 77.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:09:50,560 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1116.62ms. Allocated memory is still 178.3MB. Free memory was 144.1MB in the beginning and 105.0MB in the end (delta: 39.2MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-26 01:09:50,561 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.68ms. Allocated memory is still 178.3MB. Free memory was 105.0MB in the beginning and 102.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 01:09:50,562 INFO L158 Benchmark]: Boogie Preprocessor took 35.78ms. Allocated memory is still 178.3MB. Free memory was 102.4MB in the beginning and 100.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 01:09:50,562 INFO L158 Benchmark]: RCFGBuilder took 783.22ms. Allocated memory is still 178.3MB. Free memory was 100.3MB in the beginning and 145.7MB in the end (delta: -45.4MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2022-11-26 01:09:50,563 INFO L158 Benchmark]: TraceAbstraction took 26333.00ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 144.7MB in the beginning and 76.4MB in the end (delta: 68.3MB). Peak memory consumption was 103.9MB. Max. memory is 16.1GB. [2022-11-26 01:09:50,564 INFO L158 Benchmark]: Witness Printer took 83.03ms. Allocated memory is still 213.9MB. Free memory was 76.4MB in the beginning and 71.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 01:09:50,567 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 134.2MB. Free memory is still 77.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1116.62ms. Allocated memory is still 178.3MB. Free memory was 144.1MB in the beginning and 105.0MB in the end (delta: 39.2MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.68ms. Allocated memory is still 178.3MB. Free memory was 105.0MB in the beginning and 102.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.78ms. Allocated memory is still 178.3MB. Free memory was 102.4MB in the beginning and 100.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 783.22ms. Allocated memory is still 178.3MB. Free memory was 100.3MB in the beginning and 145.7MB in the end (delta: -45.4MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. * TraceAbstraction took 26333.00ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 144.7MB in the beginning and 76.4MB in the end (delta: 68.3MB). Peak memory consumption was 103.9MB. Max. memory is 16.1GB. * Witness Printer took 83.03ms. Allocated memory is still 213.9MB. Free memory was 76.4MB in the beginning and 71.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.3s, 147 PlacesBefore, 28 PlacesAfterwards, 157 TransitionsBefore, 27 TransitionsAfterwards, 2234 CoEnabledTransitionPairs, 6 FixpointIterations, 45 TrivialSequentialCompositions, 72 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 27 ConcurrentYvCompositions, 11 ChoiceCompositions, 163 TotalNumberOfCompositions, 3354 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2713, independent: 2679, independent conditional: 0, independent unconditional: 2679, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1767, independent: 1753, independent conditional: 0, independent unconditional: 1753, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1767, independent: 1753, independent conditional: 0, independent unconditional: 1753, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 14, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 68, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2713, independent: 926, independent conditional: 0, independent unconditional: 926, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 1767, unknown conditional: 0, unknown unconditional: 1767] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 66, Positive conditional cache size: 0, Positive unconditional cache size: 66, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.1s, 166 PlacesBefore, 40 PlacesAfterwards, 177 TransitionsBefore, 39 TransitionsAfterwards, 5132 CoEnabledTransitionPairs, 7 FixpointIterations, 45 TrivialSequentialCompositions, 78 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 30 ConcurrentYvCompositions, 12 ChoiceCompositions, 172 TotalNumberOfCompositions, 10471 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7799, independent: 7719, independent conditional: 0, independent unconditional: 7719, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3995, independent: 3967, independent conditional: 0, independent unconditional: 3967, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3995, independent: 3961, independent conditional: 0, independent unconditional: 3961, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 34, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 132, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7799, independent: 3752, independent conditional: 0, independent unconditional: 3752, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 3995, unknown conditional: 0, unknown unconditional: 3995] , Statistics on independence cache: Total cache size (in pairs): 193, Positive cache size: 185, Positive conditional cache size: 0, Positive unconditional cache size: 185, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1292]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1236] 0 static int iSet = 2; [L1237] 0 static int iCheck = 2; [L1238] 0 static int a = 0; [L1239] 0 static int b = 0; [L1245] 0 int i, err; [L1246] COND TRUE 0 argc != 1 [L1247] COND FALSE 0 !(argc != 3) [L1255] EXPR 0 \read(iSet) [L1255] 0 pthread_t setPool[iSet]; [L1256] EXPR 0 \read(iCheck) [L1256] 0 pthread_t checkPool[iCheck]; [L1257] 0 i = 0 VAL [\old(argc)=3, \read(iCheck)=2, \read(iSet)=1, a=0, argc=3, argv={50:51}, argv={50:51}, b=0, checkPool={13:0}, fprintf(stderr, "./reorder \n")=52, i=0, iCheck={10:0}, iSet={9:0}, setPool={11:0}] [L1257] EXPR 0 \read(iSet) [L1257] COND TRUE 0 i < iSet [L1258] EXPR, FCALL, FORK 0 pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, \read(iCheck)=2, \read(iSet)=1, a=0, argc=3, argv={50:51}, argv={50:51}, b=0, checkPool={13:0}, fprintf(stderr, "./reorder \n")=52, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=0, setPool={11:0}] [L1285] 1 a = 1 VAL [a=1, b=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}] [L1258] EXPR 0 err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, \read(iCheck)=2, \read(iSet)=1, a=1, argc=3, argv={50:51}, argv={50:51}, b=0, checkPool={13:0}, err=0, fprintf(stderr, "./reorder \n")=52, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=0, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=0, setPool={11:0}] [L1258] COND FALSE 0 !(0 != (err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)))) [L1257] 0 i++ VAL [\old(argc)=3, \read(iCheck)=2, \read(iSet)=1, a=1, argc=3, argv={50:51}, argv={50:51}, b=0, checkPool={13:0}, err=0, fprintf(stderr, "./reorder \n")=52, fprintf(stderr, "Error [%d] found creating set thread.\n", err)=49, i=1, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, setPool={11:0}] [L1257] EXPR 0 \read(iSet) [L1257] COND FALSE 0 !(i < iSet) [L1263] 0 i = 0 VAL [\old(argc)=3, \read(iCheck)=2, \read(iSet)=1, a=1, argc=3, argv={50:51}, argv={50:51}, b=0, checkPool={13:0}, err=0, fprintf(stderr, "./reorder \n")=52, fprintf(stderr, "Error [%d] found creating set thread.\n", err)=49, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, setPool={11:0}] [L1263] EXPR 0 \read(iCheck) [L1263] COND TRUE 0 i < iCheck [L1264-L1265] FCALL, FORK 0 pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0)) VAL [\old(argc)=3, \read(iCheck)=2, \read(iSet)=1, a=1, argc=3, argv={50:51}, argv={50:51}, b=0, checkPool={13:0}, err=0, fprintf(stderr, "./reorder \n")=52, fprintf(stderr, "Error [%d] found creating set thread.\n", err)=49, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, param={0:0}, pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0))=1, setPool={11:0}] [L1290] COND TRUE 2 ! ((a == 0 && b == 0) || (a == 1 && b == -1)) [L1292] 2 reach_error() VAL [a=1, b=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, param={0:0}, param={0:0}] - UnprovableResult [Line: 1264]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1258]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 158 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 13.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=119occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 173 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 12.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64 IncrementalHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 6 mSDtfsCounter, 64 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2267occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-26 01:09:50,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bde2ea3-a0cc-4821-a208-616365fee033/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE