./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264281f-72d5-4812-95a5-254701dae903/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264281f-72d5-4812-95a5-254701dae903/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264281f-72d5-4812-95a5-254701dae903/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264281f-72d5-4812-95a5-254701dae903/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264281f-72d5-4812-95a5-254701dae903/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264281f-72d5-4812-95a5-254701dae903/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f02fd31f03f03300713de36d3982e392122375115e7a5509580eaaa38dd9026f --- 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-8393723 [2022-11-19 06:51:21,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:51:21,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:51:21,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:51:21,857 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:51:21,858 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:51:21,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:51:21,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:51:21,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:51:21,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:51:21,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:51:21,866 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:51:21,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:51:21,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:51:21,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:51:21,874 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:51:21,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:51:21,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:51:21,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:51:21,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:51:21,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:51:21,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:51:21,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:51:21,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:51:21,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:51:21,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:51:21,889 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:51:21,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:51:21,891 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:51:21,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:51:21,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:51:21,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:51:21,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:51:21,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:51:21,896 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:51:21,896 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:51:21,897 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:51:21,897 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:51:21,898 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:51:21,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:51:21,899 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:51:21,900 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264281f-72d5-4812-95a5-254701dae903/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 06:51:21,922 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:51:21,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:51:21,923 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:51:21,923 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:51:21,923 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:51:21,924 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:51:21,924 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:51:21,924 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:51:21,924 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:51:21,925 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:51:21,925 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:51:21,925 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:51:21,925 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:51:21,926 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:51:21,926 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:51:21,926 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:51:21,926 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:51:21,926 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:51:21,927 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:51:21,927 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:51:21,928 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 06:51:21,928 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:51:21,928 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:51:21,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:51:21,929 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:51:21,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:51:21,929 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:51:21,929 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 06:51:21,930 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:51:21,930 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:51:21,930 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:51:21,930 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:51:21,931 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:51:21,931 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:51:21,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:51:21,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:51:21,931 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:51:21,932 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:51:21,932 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:51:21,932 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:51:21,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:51:21,932 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:51:21,933 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:51:21,933 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_6264281f-72d5-4812-95a5-254701dae903/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264281f-72d5-4812-95a5-254701dae903/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f02fd31f03f03300713de36d3982e392122375115e7a5509580eaaa38dd9026f [2022-11-19 06:51:22,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:51:22,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:51:22,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:51:22,206 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:51:22,207 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:51:22,208 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264281f-72d5-4812-95a5-254701dae903/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c [2022-11-19 06:51:22,304 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264281f-72d5-4812-95a5-254701dae903/bin/utaipan-I9t0OCRTmS/data/67d825599/d051ff6538fd4e03a445a5868627f2a9/FLAG307a8dcfc [2022-11-19 06:51:22,781 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:51:22,782 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264281f-72d5-4812-95a5-254701dae903/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c [2022-11-19 06:51:22,793 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264281f-72d5-4812-95a5-254701dae903/bin/utaipan-I9t0OCRTmS/data/67d825599/d051ff6538fd4e03a445a5868627f2a9/FLAG307a8dcfc [2022-11-19 06:51:23,120 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264281f-72d5-4812-95a5-254701dae903/bin/utaipan-I9t0OCRTmS/data/67d825599/d051ff6538fd4e03a445a5868627f2a9 [2022-11-19 06:51:23,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:51:23,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:51:23,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:51:23,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:51:23,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:51:23,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:51:23" (1/1) ... [2022-11-19 06:51:23,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4751a74f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:23, skipping insertion in model container [2022-11-19 06:51:23,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:51:23" (1/1) ... [2022-11-19 06:51:23,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:51:23,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:51:23,405 WARN L234 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_6264281f-72d5-4812-95a5-254701dae903/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c[5274,5287] [2022-11-19 06:51:23,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:51:23,416 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:51:23,451 WARN L234 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_6264281f-72d5-4812-95a5-254701dae903/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c[5274,5287] [2022-11-19 06:51:23,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:51:23,467 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:51:23,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:23 WrapperNode [2022-11-19 06:51:23,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:51:23,469 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:51:23,469 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:51:23,469 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:51:23,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:23" (1/1) ... [2022-11-19 06:51:23,487 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:23" (1/1) ... [2022-11-19 06:51:23,524 INFO L138 Inliner]: procedures = 27, calls = 130, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 390 [2022-11-19 06:51:23,524 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:51:23,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:51:23,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:51:23,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:51:23,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:23" (1/1) ... [2022-11-19 06:51:23,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:23" (1/1) ... [2022-11-19 06:51:23,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:23" (1/1) ... [2022-11-19 06:51:23,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:23" (1/1) ... [2022-11-19 06:51:23,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:23" (1/1) ... [2022-11-19 06:51:23,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:23" (1/1) ... [2022-11-19 06:51:23,558 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:23" (1/1) ... [2022-11-19 06:51:23,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:23" (1/1) ... [2022-11-19 06:51:23,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:51:23,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:51:23,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:51:23,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:51:23,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:23" (1/1) ... [2022-11-19 06:51:23,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:51:23,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264281f-72d5-4812-95a5-254701dae903/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:51:23,602 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264281f-72d5-4812-95a5-254701dae903/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:51:23,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264281f-72d5-4812-95a5-254701dae903/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:51:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:51:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:51:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:51:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 06:51:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-19 06:51:23,656 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-19 06:51:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-19 06:51:23,656 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-19 06:51:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-19 06:51:23,656 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-19 06:51:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-19 06:51:23,657 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-19 06:51:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:51:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-19 06:51:23,657 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-19 06:51:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-19 06:51:23,658 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-19 06:51:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2022-11-19 06:51:23,659 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2022-11-19 06:51:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2022-11-19 06:51:23,659 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2022-11-19 06:51:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 06:51:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 06:51:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:51:23,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:51:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:51:23,662 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 06:51:23,852 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:51:23,854 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:51:24,443 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:51:24,702 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:51:24,702 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 06:51:24,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:51:24 BoogieIcfgContainer [2022-11-19 06:51:24,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:51:24,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:51:24,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:51:24,720 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:51:24,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:51:23" (1/3) ... [2022-11-19 06:51:24,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43b4599 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:51:24, skipping insertion in model container [2022-11-19 06:51:24,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:23" (2/3) ... [2022-11-19 06:51:24,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43b4599 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:51:24, skipping insertion in model container [2022-11-19 06:51:24,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:51:24" (3/3) ... [2022-11-19 06:51:24,724 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-8.wvr.c [2022-11-19 06:51:24,735 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-19 06:51:24,745 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:51:24,745 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-11-19 06:51:24,745 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 06:51:24,853 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-19 06:51:24,890 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 06:51:24,905 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 288 places, 265 transitions, 594 flow [2022-11-19 06:51:24,908 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 288 places, 265 transitions, 594 flow [2022-11-19 06:51:24,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 288 places, 265 transitions, 594 flow [2022-11-19 06:51:25,096 INFO L130 PetriNetUnfolder]: 2/257 cut-off events. [2022-11-19 06:51:25,096 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-19 06:51:25,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 257 events. 2/257 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 223 event pairs, 0 based on Foata normal form. 0/223 useless extension candidates. Maximal degree in co-relation 205. Up to 2 conditions per place. [2022-11-19 06:51:25,116 INFO L119 LiptonReduction]: Number of co-enabled transitions 11350 [2022-11-19 06:51:45,182 INFO L134 LiptonReduction]: Checked pairs total: 54703 [2022-11-19 06:51:45,183 INFO L136 LiptonReduction]: Total number of compositions: 200 [2022-11-19 06:51:45,191 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 123 places, 98 transitions, 260 flow