./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/gcd-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b 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_1344fd20-15f0-40be-8143-a39a1d86d577/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1344fd20-15f0-40be-8143-a39a1d86d577/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1344fd20-15f0-40be-8143-a39a1d86d577/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1344fd20-15f0-40be-8143-a39a1d86d577/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/gcd-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1344fd20-15f0-40be-8143-a39a1d86d577/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1344fd20-15f0-40be-8143-a39a1d86d577/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash abac4834eb8b1123405a2c6108c3d30e84ad22df2224a055d262e226b4ba66e1 --- 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-6b4ec56 [2022-11-20 10:46:23,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:46:23,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:46:23,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:46:23,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:46:23,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:46:23,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:46:23,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:46:23,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:46:23,680 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:46:23,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:46:23,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:46:23,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:46:23,695 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:46:23,697 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:46:23,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:46:23,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:46:23,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:46:23,707 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:46:23,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:46:23,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:46:23,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:46:23,714 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:46:23,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:46:23,720 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:46:23,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:46:23,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:46:23,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:46:23,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:46:23,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:46:23,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:46:23,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:46:23,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:46:23,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:46:23,730 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:46:23,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:46:23,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:46:23,732 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:46:23,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:46:23,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:46:23,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:46:23,736 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1344fd20-15f0-40be-8143-a39a1d86d577/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 10:46:23,767 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:46:23,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:46:23,768 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:46:23,768 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:46:23,769 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:46:23,769 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:46:23,770 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:46:23,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:46:23,771 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:46:23,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:46:23,772 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:46:23,772 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:46:23,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:46:23,773 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:46:23,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:46:23,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:46:23,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:46:23,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:46:23,774 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 10:46:23,774 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:46:23,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:46:23,775 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:46:23,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:46:23,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:46:23,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:46:23,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:46:23,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:46:23,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:46:23,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:46:23,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:46:23,778 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:46:23,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:46:23,778 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:46:23,779 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:46:23,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:46:23,793 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_1344fd20-15f0-40be-8143-a39a1d86d577/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1344fd20-15f0-40be-8143-a39a1d86d577/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abac4834eb8b1123405a2c6108c3d30e84ad22df2224a055d262e226b4ba66e1 [2022-11-20 10:46:24,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:46:24,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:46:24,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:46:24,254 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:46:24,255 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:46:24,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1344fd20-15f0-40be-8143-a39a1d86d577/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-atomic/gcd-2.i [2022-11-20 10:46:27,810 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:46:28,138 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:46:28,142 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1344fd20-15f0-40be-8143-a39a1d86d577/sv-benchmarks/c/pthread-atomic/gcd-2.i [2022-11-20 10:46:28,163 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1344fd20-15f0-40be-8143-a39a1d86d577/bin/uautomizer-ug76WZFUDN/data/c011ac204/659f7ec8b8c246b0a917301504033564/FLAG3d0720604 [2022-11-20 10:46:28,192 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1344fd20-15f0-40be-8143-a39a1d86d577/bin/uautomizer-ug76WZFUDN/data/c011ac204/659f7ec8b8c246b0a917301504033564 [2022-11-20 10:46:28,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:46:28,201 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:46:28,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:46:28,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:46:28,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:46:28,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:46:28" (1/1) ... [2022-11-20 10:46:28,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4aa42fc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:28, skipping insertion in model container [2022-11-20 10:46:28,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:46:28" (1/1) ... [2022-11-20 10:46:28,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:46:28,315 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:46:28,501 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_1344fd20-15f0-40be-8143-a39a1d86d577/sv-benchmarks/c/pthread-atomic/gcd-2.i[938,951] [2022-11-20 10:46:28,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:46:28,720 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:46:28,747 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_1344fd20-15f0-40be-8143-a39a1d86d577/sv-benchmarks/c/pthread-atomic/gcd-2.i[938,951] [2022-11-20 10:46:28,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:46:28,865 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:46:28,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:28 WrapperNode [2022-11-20 10:46:28,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:46:28,868 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:46:28,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:46:28,868 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:46:28,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:28" (1/1) ... [2022-11-20 10:46:28,893 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:28" (1/1) ... [2022-11-20 10:46:28,931 INFO L138 Inliner]: procedures = 174, calls = 38, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 182 [2022-11-20 10:46:28,932 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:46:28,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:46:28,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:46:28,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:46:28,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:28" (1/1) ... [2022-11-20 10:46:28,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:28" (1/1) ... [2022-11-20 10:46:28,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:28" (1/1) ... [2022-11-20 10:46:28,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:28" (1/1) ... [2022-11-20 10:46:28,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:28" (1/1) ... [2022-11-20 10:46:28,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:28" (1/1) ... [2022-11-20 10:46:28,973 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:28" (1/1) ... [2022-11-20 10:46:28,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:28" (1/1) ... [2022-11-20 10:46:28,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:46:28,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:46:28,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:46:28,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:46:28,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:28" (1/1) ... [2022-11-20 10:46:28,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:46:29,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1344fd20-15f0-40be-8143-a39a1d86d577/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:46:29,020 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1344fd20-15f0-40be-8143-a39a1d86d577/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:46:29,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1344fd20-15f0-40be-8143-a39a1d86d577/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:46:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:46:29,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:46:29,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:46:29,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:46:29,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:46:29,075 INFO L130 BoogieDeclarations]: Found specification of procedure dec_a [2022-11-20 10:46:29,075 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_a [2022-11-20 10:46:29,076 INFO L130 BoogieDeclarations]: Found specification of procedure dec_b [2022-11-20 10:46:29,076 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_b [2022-11-20 10:46:29,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:46:29,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:46:29,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:46:29,079 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 10:46:29,246 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:46:29,250 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:46:29,740 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:46:29,916 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:46:29,917 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 10:46:29,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:46:29 BoogieIcfgContainer [2022-11-20 10:46:29,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:46:29,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:46:29,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:46:29,927 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:46:29,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:46:28" (1/3) ... [2022-11-20 10:46:29,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9596630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:46:29, skipping insertion in model container [2022-11-20 10:46:29,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:28" (2/3) ... [2022-11-20 10:46:29,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9596630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:46:29, skipping insertion in model container [2022-11-20 10:46:29,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:46:29" (3/3) ... [2022-11-20 10:46:29,932 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd-2.i [2022-11-20 10:46:29,943 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 10:46:29,956 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:46:29,957 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2022-11-20 10:46:29,957 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:46:30,036 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 10:46:30,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 200 places, 205 transitions, 426 flow [2022-11-20 10:46:30,241 INFO L130 PetriNetUnfolder]: 12/203 cut-off events. [2022-11-20 10:46:30,242 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 10:46:30,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 203 events. 12/203 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 136 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 104. Up to 2 conditions per place. [2022-11-20 10:46:30,252 INFO L82 GeneralOperation]: Start removeDead. Operand has 200 places, 205 transitions, 426 flow [2022-11-20 10:46:30,267 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 130 transitions, 272 flow [2022-11-20 10:46:30,290 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:46:30,301 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=PETRI_NET, 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;@308ebeb8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:46:30,302 INFO L358 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2022-11-20 10:46:30,341 INFO L130 PetriNetUnfolder]: 2/51 cut-off events. [2022-11-20 10:46:30,341 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:46:30,341 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:46:30,342 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:46:30,343 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [dec_aErr0ASSERT_VIOLATIONDATA_RACE, dec_aErr1ASSERT_VIOLATIONDATA_RACE, dec_aErr2ASSERT_VIOLATIONDATA_RACE, dec_aErr3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-20 10:46:30,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:30,350 INFO L85 PathProgramCache]: Analyzing trace with hash 907435291, now seen corresponding path program 1 times [2022-11-20 10:46:30,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:30,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573693170] [2022-11-20 10:46:30,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:30,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:30,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:30,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:46:30,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:46:30,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573693170] [2022-11-20 10:46:30,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573693170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:30,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:46:30,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:46:30,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340390831] [2022-11-20 10:46:30,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:30,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:46:30,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:46:30,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:46:30,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:46:30,892 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 205 [2022-11-20 10:46:30,899 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 130 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 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) [2022-11-20 10:46:30,901 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:46:30,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 205 [2022-11-20 10:46:30,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:46:31,041 INFO L130 PetriNetUnfolder]: 34/228 cut-off events. [2022-11-20 10:46:31,041 INFO L131 PetriNetUnfolder]: For 23/42 co-relation queries the response was YES. [2022-11-20 10:46:31,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 323 conditions, 228 events. 34/228 cut-off events. For 23/42 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 673 event pairs, 22 based on Foata normal form. 2/187 useless extension candidates. Maximal degree in co-relation 204. Up to 74 conditions per place. [2022-11-20 10:46:31,046 INFO L137 encePairwiseOnDemand]: 188/205 looper letters, 17 selfloop transitions, 2 changer transitions 2/115 dead transitions. [2022-11-20 10:46:31,046 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 115 transitions, 280 flow [2022-11-20 10:46:31,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:46:31,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:46:31,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 517 transitions. [2022-11-20 10:46:31,069 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8406504065040651 [2022-11-20 10:46:31,070 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 517 transitions. [2022-11-20 10:46:31,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 517 transitions. [2022-11-20 10:46:31,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:46:31,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 517 transitions. [2022-11-20 10:46:31,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 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) [2022-11-20 10:46:31,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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) [2022-11-20 10:46:31,098 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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) [2022-11-20 10:46:31,101 INFO L175 Difference]: Start difference. First operand has 131 places, 130 transitions, 272 flow. Second operand 3 states and 517 transitions. [2022-11-20 10:46:31,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 115 transitions, 280 flow [2022-11-20 10:46:31,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 115 transitions, 272 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 10:46:31,113 INFO L231 Difference]: Finished difference. Result has 118 places, 113 transitions, 234 flow [2022-11-20 10:46:31,116 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=118, PETRI_TRANSITIONS=113} [2022-11-20 10:46:31,123 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -13 predicate places. [2022-11-20 10:46:31,123 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 113 transitions, 234 flow [2022-11-20 10:46:31,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 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) [2022-11-20 10:46:31,125 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:46:31,125 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:46:31,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:46:31,126 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [dec_aErr0ASSERT_VIOLATIONDATA_RACE, dec_aErr1ASSERT_VIOLATIONDATA_RACE, dec_aErr2ASSERT_VIOLATIONDATA_RACE, dec_aErr3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-20 10:46:31,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:31,128 INFO L85 PathProgramCache]: Analyzing trace with hash 589224822, now seen corresponding path program 1 times [2022-11-20 10:46:31,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:31,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549703446] [2022-11-20 10:46:31,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:31,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:31,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:46:31,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:46:31,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549703446] [2022-11-20 10:46:31,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549703446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:31,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:46:31,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:46:31,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821155232] [2022-11-20 10:46:31,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:31,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:46:31,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:46:31,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:46:31,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:46:31,292 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 205 [2022-11-20 10:46:31,296 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 113 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 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) [2022-11-20 10:46:31,297 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:46:31,297 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 205 [2022-11-20 10:46:31,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:46:31,452 INFO L130 PetriNetUnfolder]: 34/225 cut-off events. [2022-11-20 10:46:31,452 INFO L131 PetriNetUnfolder]: For 6/17 co-relation queries the response was YES. [2022-11-20 10:46:31,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 225 events. 34/225 cut-off events. For 6/17 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 665 event pairs, 22 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 253. Up to 72 conditions per place. [2022-11-20 10:46:31,457 INFO L137 encePairwiseOnDemand]: 202/205 looper letters, 15 selfloop transitions, 2 changer transitions 0/112 dead transitions. [2022-11-20 10:46:31,457 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 112 transitions, 266 flow [2022-11-20 10:46:31,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:46:31,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:46:31,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 510 transitions. [2022-11-20 10:46:31,463 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8292682926829268 [2022-11-20 10:46:31,463 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 510 transitions. [2022-11-20 10:46:31,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 510 transitions. [2022-11-20 10:46:31,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:46:31,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 510 transitions. [2022-11-20 10:46:31,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 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) [2022-11-20 10:46:31,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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) [2022-11-20 10:46:31,472 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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) [2022-11-20 10:46:31,472 INFO L175 Difference]: Start difference. First operand has 118 places, 113 transitions, 234 flow. Second operand 3 states and 510 transitions. [2022-11-20 10:46:31,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 112 transitions, 266 flow [2022-11-20 10:46:31,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 112 transitions, 262 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:46:31,494 INFO L231 Difference]: Finished difference. Result has 115 places, 112 transitions, 232 flow [2022-11-20 10:46:31,494 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=115, PETRI_TRANSITIONS=112} [2022-11-20 10:46:31,495 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -16 predicate places. [2022-11-20 10:46:31,495 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 112 transitions, 232 flow [2022-11-20 10:46:31,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 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) [2022-11-20 10:46:31,496 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:46:31,496 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:46:31,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:46:31,497 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting dec_aErr0ASSERT_VIOLATIONDATA_RACE === [dec_aErr0ASSERT_VIOLATIONDATA_RACE, dec_aErr1ASSERT_VIOLATIONDATA_RACE, dec_aErr2ASSERT_VIOLATIONDATA_RACE, dec_aErr3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-20 10:46:31,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:31,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1926933376, now seen corresponding path program 1 times [2022-11-20 10:46:31,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:31,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601268272] [2022-11-20 10:46:31,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:31,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:31,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:46:31,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:46:31,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601268272] [2022-11-20 10:46:31,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601268272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:31,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:46:31,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:46:31,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395400854] [2022-11-20 10:46:31,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:31,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:46:31,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:46:31,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:46:31,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:46:31,660 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 205 [2022-11-20 10:46:31,661 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 112 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 states have internal predecessors, (497), 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) [2022-11-20 10:46:31,661 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:46:31,662 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 205 [2022-11-20 10:46:31,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:46:31,741 INFO L130 PetriNetUnfolder]: 25/184 cut-off events. [2022-11-20 10:46:31,741 INFO L131 PetriNetUnfolder]: For 5/13 co-relation queries the response was YES. [2022-11-20 10:46:31,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 184 events. 25/184 cut-off events. For 5/13 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 447 event pairs, 9 based on Foata normal form. 2/166 useless extension candidates. Maximal degree in co-relation 186. Up to 49 conditions per place. [2022-11-20 10:46:31,746 INFO L137 encePairwiseOnDemand]: 200/205 looper letters, 12 selfloop transitions, 2 changer transitions 3/112 dead transitions. [2022-11-20 10:46:31,747 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 112 transitions, 265 flow [2022-11-20 10:46:31,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:46:31,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:46:31,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 511 transitions. [2022-11-20 10:46:31,750 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8308943089430895 [2022-11-20 10:46:31,751 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 511 transitions. [2022-11-20 10:46:31,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 511 transitions. [2022-11-20 10:46:31,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:46:31,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 511 transitions. [2022-11-20 10:46:31,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 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) [2022-11-20 10:46:31,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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) [2022-11-20 10:46:31,759 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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) [2022-11-20 10:46:31,760 INFO L175 Difference]: Start difference. First operand has 115 places, 112 transitions, 232 flow. Second operand 3 states and 511 transitions. [2022-11-20 10:46:31,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 112 transitions, 265 flow [2022-11-20 10:46:31,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 112 transitions, 261 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:46:31,767 INFO L231 Difference]: Finished difference. Result has 113 places, 108 transitions, 229 flow [2022-11-20 10:46:31,768 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=229, PETRI_PLACES=113, PETRI_TRANSITIONS=108} [2022-11-20 10:46:31,775 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -18 predicate places. [2022-11-20 10:46:31,775 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 108 transitions, 229 flow [2022-11-20 10:46:31,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 states have internal predecessors, (497), 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) [2022-11-20 10:46:31,776 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:46:31,777 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:46:31,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:46:31,778 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting dec_aErr1ASSERT_VIOLATIONDATA_RACE === [dec_aErr0ASSERT_VIOLATIONDATA_RACE, dec_aErr1ASSERT_VIOLATIONDATA_RACE, dec_aErr2ASSERT_VIOLATIONDATA_RACE, dec_aErr3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-20 10:46:31,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:31,780 INFO L85 PathProgramCache]: Analyzing trace with hash 652089122, now seen corresponding path program 1 times [2022-11-20 10:46:31,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:31,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220439717] [2022-11-20 10:46:31,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:31,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:31,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:31,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:46:31,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:46:31,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220439717] [2022-11-20 10:46:31,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220439717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:31,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:46:31,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:46:31,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461576650] [2022-11-20 10:46:31,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:31,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:46:31,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:46:31,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:46:31,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:46:31,914 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 205 [2022-11-20 10:46:31,915 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 108 transitions, 229 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 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) [2022-11-20 10:46:31,915 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:46:31,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 205 [2022-11-20 10:46:31,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:46:32,005 INFO L130 PetriNetUnfolder]: 34/244 cut-off events. [2022-11-20 10:46:32,005 INFO L131 PetriNetUnfolder]: For 5/23 co-relation queries the response was YES. [2022-11-20 10:46:32,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 244 events. 34/244 cut-off events. For 5/23 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 731 event pairs, 9 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 246. Up to 48 conditions per place. [2022-11-20 10:46:32,008 INFO L137 encePairwiseOnDemand]: 198/205 looper letters, 13 selfloop transitions, 5 changer transitions 0/113 dead transitions. [2022-11-20 10:46:32,009 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 113 transitions, 277 flow [2022-11-20 10:46:32,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:46:32,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:46:32,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 521 transitions. [2022-11-20 10:46:32,011 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8471544715447155 [2022-11-20 10:46:32,012 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 521 transitions. [2022-11-20 10:46:32,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 521 transitions. [2022-11-20 10:46:32,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:46:32,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 521 transitions. [2022-11-20 10:46:32,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 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) [2022-11-20 10:46:32,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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) [2022-11-20 10:46:32,022 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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) [2022-11-20 10:46:32,023 INFO L175 Difference]: Start difference. First operand has 113 places, 108 transitions, 229 flow. Second operand 3 states and 521 transitions. [2022-11-20 10:46:32,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 113 transitions, 277 flow [2022-11-20 10:46:32,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 113 transitions, 277 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 10:46:32,032 INFO L231 Difference]: Finished difference. Result has 113 places, 111 transitions, 265 flow [2022-11-20 10:46:32,034 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=265, PETRI_PLACES=113, PETRI_TRANSITIONS=111} [2022-11-20 10:46:32,036 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -18 predicate places. [2022-11-20 10:46:32,037 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 111 transitions, 265 flow [2022-11-20 10:46:32,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 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) [2022-11-20 10:46:32,043 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:46:32,044 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:46:32,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:46:32,045 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [dec_aErr0ASSERT_VIOLATIONDATA_RACE, dec_aErr1ASSERT_VIOLATIONDATA_RACE, dec_aErr2ASSERT_VIOLATIONDATA_RACE, dec_aErr3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-20 10:46:32,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:32,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1859413321, now seen corresponding path program 1 times [2022-11-20 10:46:32,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:32,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224104928] [2022-11-20 10:46:32,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:32,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:32,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:32,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:46:32,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:46:32,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224104928] [2022-11-20 10:46:32,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224104928] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:32,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:46:32,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:46:32,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119081914] [2022-11-20 10:46:32,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:32,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:46:32,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:46:32,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:46:32,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:46:32,803 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 205 [2022-11-20 10:46:32,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 111 transitions, 265 flow. Second operand has 6 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 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) [2022-11-20 10:46:32,805 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:46:32,805 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 205 [2022-11-20 10:46:32,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:46:33,041 INFO L130 PetriNetUnfolder]: 174/570 cut-off events. [2022-11-20 10:46:33,042 INFO L131 PetriNetUnfolder]: For 359/447 co-relation queries the response was YES. [2022-11-20 10:46:33,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1192 conditions, 570 events. 174/570 cut-off events. For 359/447 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2984 event pairs, 18 based on Foata normal form. 27/529 useless extension candidates. Maximal degree in co-relation 1016. Up to 118 conditions per place. [2022-11-20 10:46:33,050 INFO L137 encePairwiseOnDemand]: 200/205 looper letters, 29 selfloop transitions, 4 changer transitions 0/122 dead transitions. [2022-11-20 10:46:33,050 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 122 transitions, 393 flow [2022-11-20 10:46:33,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:46:33,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:46:33,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 977 transitions. [2022-11-20 10:46:33,053 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7943089430894309 [2022-11-20 10:46:33,053 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 977 transitions. [2022-11-20 10:46:33,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 977 transitions. [2022-11-20 10:46:33,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:46:33,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 977 transitions. [2022-11-20 10:46:33,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.83333333333334) internal successors, (977), 6 states have internal predecessors, (977), 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) [2022-11-20 10:46:33,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 205.0) internal successors, (1435), 7 states have internal predecessors, (1435), 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) [2022-11-20 10:46:33,061 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 205.0) internal successors, (1435), 7 states have internal predecessors, (1435), 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) [2022-11-20 10:46:33,061 INFO L175 Difference]: Start difference. First operand has 113 places, 111 transitions, 265 flow. Second operand 6 states and 977 transitions. [2022-11-20 10:46:33,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 122 transitions, 393 flow [2022-11-20 10:46:33,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 122 transitions, 367 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:46:33,066 INFO L231 Difference]: Finished difference. Result has 115 places, 110 transitions, 261 flow [2022-11-20 10:46:33,066 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=261, PETRI_PLACES=115, PETRI_TRANSITIONS=110} [2022-11-20 10:46:33,070 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -16 predicate places. [2022-11-20 10:46:33,070 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 110 transitions, 261 flow [2022-11-20 10:46:33,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 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) [2022-11-20 10:46:33,071 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:46:33,071 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:46:33,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:46:33,072 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting dec_aErr1ASSERT_VIOLATIONDATA_RACE === [dec_aErr0ASSERT_VIOLATIONDATA_RACE, dec_aErr1ASSERT_VIOLATIONDATA_RACE, dec_aErr2ASSERT_VIOLATIONDATA_RACE, dec_aErr3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-20 10:46:33,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:33,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1176644151, now seen corresponding path program 1 times [2022-11-20 10:46:33,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:33,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834327267] [2022-11-20 10:46:33,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:33,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:33,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:46:33,140 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:46:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:46:33,206 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:46:33,206 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 10:46:33,208 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location dec_aErr1ASSERT_VIOLATIONDATA_RACE (34 of 35 remaining) [2022-11-20 10:46:33,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr0ASSERT_VIOLATIONDATA_RACE (33 of 35 remaining) [2022-11-20 10:46:33,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr1ASSERT_VIOLATIONDATA_RACE (32 of 35 remaining) [2022-11-20 10:46:33,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr2ASSERT_VIOLATIONDATA_RACE (31 of 35 remaining) [2022-11-20 10:46:33,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr3ASSERT_VIOLATIONDATA_RACE (30 of 35 remaining) [2022-11-20 10:46:33,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr4ASSERT_VIOLATIONDATA_RACE (29 of 35 remaining) [2022-11-20 10:46:33,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr5ASSERT_VIOLATIONDATA_RACE (28 of 35 remaining) [2022-11-20 10:46:33,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr6ASSERT_VIOLATIONDATA_RACE (27 of 35 remaining) [2022-11-20 10:46:33,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr0ASSERT_VIOLATIONDATA_RACE (26 of 35 remaining) [2022-11-20 10:46:33,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr1ASSERT_VIOLATIONDATA_RACE (25 of 35 remaining) [2022-11-20 10:46:33,216 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr2ASSERT_VIOLATIONDATA_RACE (24 of 35 remaining) [2022-11-20 10:46:33,216 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr3ASSERT_VIOLATIONDATA_RACE (23 of 35 remaining) [2022-11-20 10:46:33,217 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr4ASSERT_VIOLATIONDATA_RACE (22 of 35 remaining) [2022-11-20 10:46:33,217 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr5ASSERT_VIOLATIONDATA_RACE (21 of 35 remaining) [2022-11-20 10:46:33,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr6ASSERT_VIOLATIONDATA_RACE (20 of 35 remaining) [2022-11-20 10:46:33,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 35 remaining) [2022-11-20 10:46:33,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 35 remaining) [2022-11-20 10:46:33,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 35 remaining) [2022-11-20 10:46:33,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 35 remaining) [2022-11-20 10:46:33,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 35 remaining) [2022-11-20 10:46:33,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 35 remaining) [2022-11-20 10:46:33,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 35 remaining) [2022-11-20 10:46:33,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr0ASSERT_VIOLATIONDATA_RACE (12 of 35 remaining) [2022-11-20 10:46:33,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr2ASSERT_VIOLATIONDATA_RACE (11 of 35 remaining) [2022-11-20 10:46:33,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr3ASSERT_VIOLATIONDATA_RACE (10 of 35 remaining) [2022-11-20 10:46:33,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr4ASSERT_VIOLATIONDATA_RACE (9 of 35 remaining) [2022-11-20 10:46:33,226 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr5ASSERT_VIOLATIONDATA_RACE (8 of 35 remaining) [2022-11-20 10:46:33,226 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr6ASSERT_VIOLATIONDATA_RACE (7 of 35 remaining) [2022-11-20 10:46:33,226 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr0ASSERT_VIOLATIONDATA_RACE (6 of 35 remaining) [2022-11-20 10:46:33,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr1ASSERT_VIOLATIONDATA_RACE (5 of 35 remaining) [2022-11-20 10:46:33,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr2ASSERT_VIOLATIONDATA_RACE (4 of 35 remaining) [2022-11-20 10:46:33,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr3ASSERT_VIOLATIONDATA_RACE (3 of 35 remaining) [2022-11-20 10:46:33,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr4ASSERT_VIOLATIONDATA_RACE (2 of 35 remaining) [2022-11-20 10:46:33,228 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr5ASSERT_VIOLATIONDATA_RACE (1 of 35 remaining) [2022-11-20 10:46:33,228 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr6ASSERT_VIOLATIONDATA_RACE (0 of 35 remaining) [2022-11-20 10:46:33,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:46:33,229 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-20 10:46:33,239 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 10:46:33,239 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:46:33,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:46:33 BasicIcfg [2022-11-20 10:46:33,327 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 10:46:33,327 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:46:33,327 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:46:33,328 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:46:33,328 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:46:29" (3/4) ... [2022-11-20 10:46:33,331 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 10:46:33,331 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:46:33,332 INFO L158 Benchmark]: Toolchain (without parser) took 5130.88ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 115.1MB in the beginning and 84.9MB in the end (delta: 30.2MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. [2022-11-20 10:46:33,333 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 113.2MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:46:33,333 INFO L158 Benchmark]: CACSL2BoogieTranslator took 662.33ms. Allocated memory is still 144.7MB. Free memory was 114.9MB in the beginning and 96.4MB in the end (delta: 18.5MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2022-11-20 10:46:33,334 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.65ms. Allocated memory is still 144.7MB. Free memory was 96.4MB in the beginning and 93.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:46:33,334 INFO L158 Benchmark]: Boogie Preprocessor took 46.09ms. Allocated memory is still 144.7MB. Free memory was 93.3MB in the beginning and 91.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:46:33,335 INFO L158 Benchmark]: RCFGBuilder took 940.43ms. Allocated memory is still 144.7MB. Free memory was 91.6MB in the beginning and 108.8MB in the end (delta: -17.3MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2022-11-20 10:46:33,335 INFO L158 Benchmark]: TraceAbstraction took 3403.76ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 107.9MB in the beginning and 85.9MB in the end (delta: 21.9MB). Peak memory consumption was 51.2MB. Max. memory is 16.1GB. [2022-11-20 10:46:33,336 INFO L158 Benchmark]: Witness Printer took 4.34ms. Allocated memory is still 174.1MB. Free memory was 85.9MB in the beginning and 84.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:46:33,338 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 113.2MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 662.33ms. Allocated memory is still 144.7MB. Free memory was 114.9MB in the beginning and 96.4MB in the end (delta: 18.5MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.65ms. Allocated memory is still 144.7MB. Free memory was 96.4MB in the beginning and 93.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.09ms. Allocated memory is still 144.7MB. Free memory was 93.3MB in the beginning and 91.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 940.43ms. Allocated memory is still 144.7MB. Free memory was 91.6MB in the beginning and 108.8MB in the end (delta: -17.3MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3403.76ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 107.9MB in the beginning and 85.9MB in the end (delta: 21.9MB). Peak memory consumption was 51.2MB. Max. memory is 16.1GB. * Witness Printer took 4.34ms. Allocated memory is still 174.1MB. Free memory was 85.9MB in the beginning and 84.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 709]: Data race detected Data race detected The following path leads to a data race: [L695] 0 unsigned a, b; VAL [a=0, b=0] [L747] 0 unsigned a_in=__VERIFIER_nondet_uint(); VAL [__VERIFIER_nondet_uint()=-4294967308, a=0, a_in=4294967284, b=0] [L748] 0 unsigned b_in=__VERIFIER_nondet_uint(); VAL [__VERIFIER_nondet_uint()=-4294967297, a=0, a_in=4294967284, b=0, b_in=4294967295] [L749] CALL 0 assume_abort_if_not(a_in>0) [L15] COND FALSE 0 !(!cond) VAL [\old(cond)=1, a=0, b=0, cond=1] [L749] RET 0 assume_abort_if_not(a_in>0) [L750] CALL 0 assume_abort_if_not(b_in>0) [L15] COND FALSE 0 !(!cond) VAL [\old(cond)=1, a=0, b=0, cond=1] [L750] RET 0 assume_abort_if_not(b_in>0) [L751] CALL 0 start(a_in, b_in) [L726] 0 a=a_in VAL [\old(a_in)=4294967284, \old(b_in)=4294967295, a=-4294967308, a_in=4294967284, b=0, b_in=4294967295] [L727] 0 b=b_in VAL [\old(a_in)=4294967284, \old(b_in)=4294967295, a=-4294967308, a_in=4294967284, b=-4294967297, b_in=4294967295] [L728] 0 pthread_t t1, t2; VAL [\old(a_in)=4294967284, \old(b_in)=4294967295, a=-4294967308, a_in=4294967284, b=-4294967297, b_in=4294967295, t1={10:0}, t2={9:0}] [L729] FCALL, FORK 0 pthread_create(&t1, 0, dec_a, 0) VAL [\old(a_in)=4294967284, \old(b_in)=4294967295, a=-4294967308, a_in=4294967284, b=-4294967297, b_in=4294967295, pthread_create(&t1, 0, dec_a, 0)=-1, t1={10:0}, t2={9:0}] [L709] 1 a!=b VAL [a=-4294967308, arg={0:0}, arg={0:0}, b=-4294967297] [L730] FCALL, FORK 0 pthread_create(&t2, 0, dec_b, 0) VAL [\old(a_in)=4294967284, \old(b_in)=4294967295, a=-4294967308, a_in=4294967284, b=-4294967297, b_in=4294967295, pthread_create(&t2, 0, dec_b, 0)=0, t1={10:0}, t2={9:0}] [L718] 2 a!=b VAL [a=-4294967308, arg={0:0}, arg={0:0}, b=-4294967297] [L718] COND TRUE 2 a!=b VAL [a=-4294967308, arg={0:0}, arg={0:0}, b=-4294967297] [L720] CALL 2 __VERIFIER_atomic_dec_b() [L703] 2 b>a [L703] COND TRUE 2 b>a [L704] EXPR 2 b-a [L704] 2 b=b-a [L720] RET 2 __VERIFIER_atomic_dec_b() [L709] 1 a!=b VAL [a=-4294967308, arg={0:0}, arg={0:0}, b=11] Now there is a data race on ~b~0 between C: b=b-a [704] and C: a!=b [709] - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 726]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 727]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 731]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 732]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 733]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 730]: 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: 729]: 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, 230 locations, 35 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 121 IncrementalHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 41 mSDtfsCounter, 121 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=272occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 381 NumberOfCodeBlocks, 381 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 298 ConstructedInterpolants, 0 QuantifiedInterpolants, 387 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! [2022-11-20 10:46:33,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1344fd20-15f0-40be-8143-a39a1d86d577/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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