./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_40-traces-ex-6_true.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_967484c5-75c0-4ff7-a5af-04296d0b63b0/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_967484c5-75c0-4ff7-a5af-04296d0b63b0/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_967484c5-75c0-4ff7-a5af-04296d0b63b0/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_967484c5-75c0-4ff7-a5af-04296d0b63b0/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_40-traces-ex-6_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_967484c5-75c0-4ff7-a5af-04296d0b63b0/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_967484c5-75c0-4ff7-a5af-04296d0b63b0/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 5ccb5cdd0373226e681809d7804324f4019c28126fdbac8b5748755015258b65 --- 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 11:17:20,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:17:20,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:17:20,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:17:20,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:17:20,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:17:20,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:17:20,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:17:20,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:17:20,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:17:20,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:17:20,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:17:20,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:17:20,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:17:20,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:17:20,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:17:20,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:17:20,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:17:20,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:17:20,748 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:17:20,750 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:17:20,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:17:20,755 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:17:20,756 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:17:20,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:17:20,768 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:17:20,768 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:17:20,770 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:17:20,771 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:17:20,772 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:17:20,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:17:20,773 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:17:20,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:17:20,777 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:17:20,778 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:17:20,778 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:17:20,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:17:20,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:17:20,779 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:17:20,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:17:20,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:17:20,783 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_967484c5-75c0-4ff7-a5af-04296d0b63b0/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:17:20,830 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:17:20,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:17:20,831 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:17:20,831 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:17:20,832 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:17:20,832 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:17:20,833 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:17:20,833 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:17:20,834 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:17:20,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:17:20,835 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:17:20,835 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:17:20,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:17:20,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:17:20,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:17:20,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:17:20,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:17:20,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:17:20,837 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:17:20,838 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:17:20,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:17:20,838 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:17:20,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:17:20,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:17:20,839 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:17:20,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:17:20,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:17:20,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:17:20,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:17:20,841 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:17:20,841 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:17:20,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:17:20,842 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:17:20,842 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:17:20,842 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:17:20,842 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_967484c5-75c0-4ff7-a5af-04296d0b63b0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_967484c5-75c0-4ff7-a5af-04296d0b63b0/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ccb5cdd0373226e681809d7804324f4019c28126fdbac8b5748755015258b65 [2022-11-20 11:17:21,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:17:21,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:17:21,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:17:21,264 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:17:21,265 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:17:21,266 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_967484c5-75c0-4ff7-a5af-04296d0b63b0/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/13-privatized_40-traces-ex-6_true.i [2022-11-20 11:17:24,506 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:17:24,912 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:17:24,912 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_967484c5-75c0-4ff7-a5af-04296d0b63b0/sv-benchmarks/c/goblint-regression/13-privatized_40-traces-ex-6_true.i [2022-11-20 11:17:24,926 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_967484c5-75c0-4ff7-a5af-04296d0b63b0/bin/uautomizer-ug76WZFUDN/data/a84874654/4601f85d277e4d539771e2ad7b175dd7/FLAG5b24e3e79 [2022-11-20 11:17:24,949 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_967484c5-75c0-4ff7-a5af-04296d0b63b0/bin/uautomizer-ug76WZFUDN/data/a84874654/4601f85d277e4d539771e2ad7b175dd7 [2022-11-20 11:17:24,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:17:24,953 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:17:24,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:17:24,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:17:24,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:17:24,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:17:24" (1/1) ... [2022-11-20 11:17:24,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4402ff73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:24, skipping insertion in model container [2022-11-20 11:17:24,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:17:24" (1/1) ... [2022-11-20 11:17:24,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:17:25,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:17:25,216 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_967484c5-75c0-4ff7-a5af-04296d0b63b0/sv-benchmarks/c/goblint-regression/13-privatized_40-traces-ex-6_true.i[1088,1101] [2022-11-20 11:17:25,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:17:25,446 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:17:25,462 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_967484c5-75c0-4ff7-a5af-04296d0b63b0/sv-benchmarks/c/goblint-regression/13-privatized_40-traces-ex-6_true.i[1088,1101] [2022-11-20 11:17:25,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:17:25,555 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:17:25,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:25 WrapperNode [2022-11-20 11:17:25,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:17:25,558 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:17:25,558 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:17:25,558 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:17:25,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:25" (1/1) ... [2022-11-20 11:17:25,581 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:25" (1/1) ... [2022-11-20 11:17:25,607 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 50 [2022-11-20 11:17:25,609 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:17:25,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:17:25,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:17:25,610 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:17:25,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:25" (1/1) ... [2022-11-20 11:17:25,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:25" (1/1) ... [2022-11-20 11:17:25,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:25" (1/1) ... [2022-11-20 11:17:25,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:25" (1/1) ... [2022-11-20 11:17:25,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:25" (1/1) ... [2022-11-20 11:17:25,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:25" (1/1) ... [2022-11-20 11:17:25,641 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:25" (1/1) ... [2022-11-20 11:17:25,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:25" (1/1) ... [2022-11-20 11:17:25,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:17:25,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:17:25,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:17:25,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:17:25,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:25" (1/1) ... [2022-11-20 11:17:25,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:17:25,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_967484c5-75c0-4ff7-a5af-04296d0b63b0/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:17:25,703 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_967484c5-75c0-4ff7-a5af-04296d0b63b0/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:17:25,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_967484c5-75c0-4ff7-a5af-04296d0b63b0/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:17:25,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:17:25,751 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:17:25,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:17:25,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:17:25,751 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 11:17:25,752 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 11:17:25,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:17:25,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:17:25,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:17:25,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:17:25,754 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 11:17:25,897 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:17:25,900 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:17:26,204 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:17:26,213 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:17:26,214 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:17:26,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:17:26 BoogieIcfgContainer [2022-11-20 11:17:26,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:17:26,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:17:26,220 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:17:26,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:17:26,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:17:24" (1/3) ... [2022-11-20 11:17:26,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717c9d11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:17:26, skipping insertion in model container [2022-11-20 11:17:26,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:25" (2/3) ... [2022-11-20 11:17:26,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717c9d11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:17:26, skipping insertion in model container [2022-11-20 11:17:26,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:17:26" (3/3) ... [2022-11-20 11:17:26,228 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_40-traces-ex-6_true.i [2022-11-20 11:17:26,239 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:17:26,253 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:17:26,253 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 11:17:26,253 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:17:26,321 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 11:17:26,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 79 transitions, 163 flow [2022-11-20 11:17:26,413 INFO L130 PetriNetUnfolder]: 1/78 cut-off events. [2022-11-20 11:17:26,413 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:17:26,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 78 events. 1/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2022-11-20 11:17:26,418 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 79 transitions, 163 flow [2022-11-20 11:17:26,423 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 78 transitions, 159 flow [2022-11-20 11:17:26,436 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:17:26,444 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;@4d37be6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:17:26,444 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-20 11:17:26,466 INFO L130 PetriNetUnfolder]: 0/48 cut-off events. [2022-11-20 11:17:26,466 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:17:26,466 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:17:26,467 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] [2022-11-20 11:17:26,468 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-20 11:17:26,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:26,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1009075193, now seen corresponding path program 1 times [2022-11-20 11:17:26,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:26,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987658591] [2022-11-20 11:17:26,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:26,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:26,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:17:26,827 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 11:17:26,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:17:26,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987658591] [2022-11-20 11:17:26,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987658591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:17:26,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:17:26,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:17:26,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133608626] [2022-11-20 11:17:26,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:17:26,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:17:26,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:17:26,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:17:26,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:17:26,882 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 79 [2022-11-20 11:17:26,886 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 78 transitions, 159 flow. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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 11:17:26,886 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:17:26,887 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 79 [2022-11-20 11:17:26,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:17:27,005 INFO L130 PetriNetUnfolder]: 21/220 cut-off events. [2022-11-20 11:17:27,005 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:17:27,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 220 events. 21/220 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 844 event pairs, 4 based on Foata normal form. 13/207 useless extension candidates. Maximal degree in co-relation 247. Up to 33 conditions per place. [2022-11-20 11:17:27,009 INFO L137 encePairwiseOnDemand]: 73/79 looper letters, 12 selfloop transitions, 4 changer transitions 1/83 dead transitions. [2022-11-20 11:17:27,009 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 83 transitions, 203 flow [2022-11-20 11:17:27,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:17:27,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:17:27,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 221 transitions. [2022-11-20 11:17:27,027 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9324894514767933 [2022-11-20 11:17:27,028 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 221 transitions. [2022-11-20 11:17:27,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 221 transitions. [2022-11-20 11:17:27,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:17:27,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 221 transitions. [2022-11-20 11:17:27,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 11:17:27,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 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 11:17:27,044 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 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 11:17:27,046 INFO L175 Difference]: Start difference. First operand has 81 places, 78 transitions, 159 flow. Second operand 3 states and 221 transitions. [2022-11-20 11:17:27,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 83 transitions, 203 flow [2022-11-20 11:17:27,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 83 transitions, 202 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:17:27,055 INFO L231 Difference]: Finished difference. Result has 83 places, 79 transitions, 184 flow [2022-11-20 11:17:27,058 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=184, PETRI_PLACES=83, PETRI_TRANSITIONS=79} [2022-11-20 11:17:27,062 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 2 predicate places. [2022-11-20 11:17:27,063 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 79 transitions, 184 flow [2022-11-20 11:17:27,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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 11:17:27,064 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:17:27,064 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] [2022-11-20 11:17:27,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:17:27,065 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-20 11:17:27,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:27,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1551591167, now seen corresponding path program 1 times [2022-11-20 11:17:27,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:27,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234538679] [2022-11-20 11:17:27,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:27,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:27,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:17:27,175 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 11:17:27,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:17:27,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234538679] [2022-11-20 11:17:27,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234538679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:17:27,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:17:27,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:17:27,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614716538] [2022-11-20 11:17:27,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:17:27,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:17:27,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:17:27,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:17:27,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:17:27,181 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 79 [2022-11-20 11:17:27,182 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 79 transitions, 184 flow. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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 11:17:27,182 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:17:27,183 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 79 [2022-11-20 11:17:27,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:17:27,281 INFO L130 PetriNetUnfolder]: 25/252 cut-off events. [2022-11-20 11:17:27,281 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-11-20 11:17:27,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 387 conditions, 252 events. 25/252 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1149 event pairs, 11 based on Foata normal form. 0/236 useless extension candidates. Maximal degree in co-relation 348. Up to 58 conditions per place. [2022-11-20 11:17:27,284 INFO L137 encePairwiseOnDemand]: 74/79 looper letters, 16 selfloop transitions, 5 changer transitions 0/85 dead transitions. [2022-11-20 11:17:27,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 85 transitions, 250 flow [2022-11-20 11:17:27,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:17:27,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:17:27,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 213 transitions. [2022-11-20 11:17:27,288 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8987341772151899 [2022-11-20 11:17:27,288 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 213 transitions. [2022-11-20 11:17:27,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 213 transitions. [2022-11-20 11:17:27,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:17:27,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 213 transitions. [2022-11-20 11:17:27,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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 11:17:27,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 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 11:17:27,293 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 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 11:17:27,293 INFO L175 Difference]: Start difference. First operand has 83 places, 79 transitions, 184 flow. Second operand 3 states and 213 transitions. [2022-11-20 11:17:27,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 85 transitions, 250 flow [2022-11-20 11:17:27,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 85 transitions, 238 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:17:27,298 INFO L231 Difference]: Finished difference. Result has 85 places, 82 transitions, 212 flow [2022-11-20 11:17:27,298 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=85, PETRI_TRANSITIONS=82} [2022-11-20 11:17:27,299 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 4 predicate places. [2022-11-20 11:17:27,300 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 82 transitions, 212 flow [2022-11-20 11:17:27,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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 11:17:27,300 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:17:27,300 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] [2022-11-20 11:17:27,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:17:27,301 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-20 11:17:27,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:27,302 INFO L85 PathProgramCache]: Analyzing trace with hash 618062949, now seen corresponding path program 1 times [2022-11-20 11:17:27,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:27,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209442237] [2022-11-20 11:17:27,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:27,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:17:27,512 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 11:17:27,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:17:27,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209442237] [2022-11-20 11:17:27,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209442237] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:17:27,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:17:27,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:17:27,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349554798] [2022-11-20 11:17:27,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:17:27,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:17:27,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:17:27,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:17:27,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:17:27,517 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 79 [2022-11-20 11:17:27,518 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 82 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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 11:17:27,518 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:17:27,519 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 79 [2022-11-20 11:17:27,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:17:27,607 INFO L130 PetriNetUnfolder]: 26/296 cut-off events. [2022-11-20 11:17:27,607 INFO L131 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2022-11-20 11:17:27,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 296 events. 26/296 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1424 event pairs, 9 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 415. Up to 58 conditions per place. [2022-11-20 11:17:27,610 INFO L137 encePairwiseOnDemand]: 74/79 looper letters, 14 selfloop transitions, 4 changer transitions 5/88 dead transitions. [2022-11-20 11:17:27,610 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 88 transitions, 280 flow [2022-11-20 11:17:27,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:17:27,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:17:27,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 213 transitions. [2022-11-20 11:17:27,615 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8987341772151899 [2022-11-20 11:17:27,615 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 213 transitions. [2022-11-20 11:17:27,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 213 transitions. [2022-11-20 11:17:27,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:17:27,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 213 transitions. [2022-11-20 11:17:27,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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 11:17:27,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 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 11:17:27,619 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 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 11:17:27,619 INFO L175 Difference]: Start difference. First operand has 85 places, 82 transitions, 212 flow. Second operand 3 states and 213 transitions. [2022-11-20 11:17:27,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 88 transitions, 280 flow [2022-11-20 11:17:27,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 88 transitions, 270 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:17:27,624 INFO L231 Difference]: Finished difference. Result has 87 places, 82 transitions, 226 flow [2022-11-20 11:17:27,624 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=87, PETRI_TRANSITIONS=82} [2022-11-20 11:17:27,625 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 6 predicate places. [2022-11-20 11:17:27,625 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 82 transitions, 226 flow [2022-11-20 11:17:27,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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 11:17:27,626 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:17:27,626 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] [2022-11-20 11:17:27,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:17:27,627 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-20 11:17:27,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:27,628 INFO L85 PathProgramCache]: Analyzing trace with hash -2119688797, now seen corresponding path program 1 times [2022-11-20 11:17:27,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:27,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137054291] [2022-11-20 11:17:27,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:27,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:17:28,024 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 11:17:28,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:17:28,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137054291] [2022-11-20 11:17:28,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137054291] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:17:28,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:17:28,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:17:28,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891657910] [2022-11-20 11:17:28,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:17:28,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:17:28,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:17:28,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:17:28,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:17:28,038 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 79 [2022-11-20 11:17:28,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 82 transitions, 226 flow. Second operand has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 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 11:17:28,040 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:17:28,041 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 79 [2022-11-20 11:17:28,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:17:28,210 INFO L130 PetriNetUnfolder]: 6/220 cut-off events. [2022-11-20 11:17:28,211 INFO L131 PetriNetUnfolder]: For 45/51 co-relation queries the response was YES. [2022-11-20 11:17:28,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 220 events. 6/220 cut-off events. For 45/51 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 793 event pairs, 1 based on Foata normal form. 5/214 useless extension candidates. Maximal degree in co-relation 290. Up to 15 conditions per place. [2022-11-20 11:17:28,212 INFO L137 encePairwiseOnDemand]: 73/79 looper letters, 14 selfloop transitions, 6 changer transitions 0/82 dead transitions. [2022-11-20 11:17:28,212 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 82 transitions, 266 flow [2022-11-20 11:17:28,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:17:28,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 11:17:28,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 307 transitions. [2022-11-20 11:17:28,215 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7772151898734178 [2022-11-20 11:17:28,216 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 307 transitions. [2022-11-20 11:17:28,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 307 transitions. [2022-11-20 11:17:28,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:17:28,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 307 transitions. [2022-11-20 11:17:28,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 61.4) internal successors, (307), 5 states have internal predecessors, (307), 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 11:17:28,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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 11:17:28,220 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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 11:17:28,220 INFO L175 Difference]: Start difference. First operand has 87 places, 82 transitions, 226 flow. Second operand 5 states and 307 transitions. [2022-11-20 11:17:28,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 82 transitions, 266 flow [2022-11-20 11:17:28,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 82 transitions, 256 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-11-20 11:17:28,225 INFO L231 Difference]: Finished difference. Result has 89 places, 82 transitions, 228 flow [2022-11-20 11:17:28,226 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=228, PETRI_PLACES=89, PETRI_TRANSITIONS=82} [2022-11-20 11:17:28,227 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 8 predicate places. [2022-11-20 11:17:28,227 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 82 transitions, 228 flow [2022-11-20 11:17:28,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 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 11:17:28,228 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:17:28,228 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] [2022-11-20 11:17:28,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:17:28,229 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-20 11:17:28,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:28,230 INFO L85 PathProgramCache]: Analyzing trace with hash -2072356875, now seen corresponding path program 2 times [2022-11-20 11:17:28,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:28,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507312725] [2022-11-20 11:17:28,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:28,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:17:28,482 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 11:17:28,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:17:28,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507312725] [2022-11-20 11:17:28,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507312725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:17:28,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:17:28,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:17:28,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159342970] [2022-11-20 11:17:28,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:17:28,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:17:28,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:17:28,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:17:28,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:17:28,487 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 79 [2022-11-20 11:17:28,487 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 82 transitions, 228 flow. Second operand has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 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 11:17:28,488 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:17:28,488 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 79 [2022-11-20 11:17:28,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:17:28,612 INFO L130 PetriNetUnfolder]: 0/95 cut-off events. [2022-11-20 11:17:28,612 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-20 11:17:28,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 95 events. 0/95 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 1/94 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2022-11-20 11:17:28,613 INFO L137 encePairwiseOnDemand]: 74/79 looper letters, 0 selfloop transitions, 0 changer transitions 74/74 dead transitions. [2022-11-20 11:17:28,613 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 74 transitions, 230 flow [2022-11-20 11:17:28,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:17:28,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 11:17:28,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 307 transitions. [2022-11-20 11:17:28,615 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7772151898734178 [2022-11-20 11:17:28,615 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 307 transitions. [2022-11-20 11:17:28,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 307 transitions. [2022-11-20 11:17:28,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:17:28,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 307 transitions. [2022-11-20 11:17:28,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 61.4) internal successors, (307), 5 states have internal predecessors, (307), 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 11:17:28,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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 11:17:28,622 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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 11:17:28,622 INFO L175 Difference]: Start difference. First operand has 89 places, 82 transitions, 228 flow. Second operand 5 states and 307 transitions. [2022-11-20 11:17:28,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 74 transitions, 230 flow [2022-11-20 11:17:28,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 74 transitions, 198 flow, removed 7 selfloop flow, removed 9 redundant places. [2022-11-20 11:17:28,628 INFO L231 Difference]: Finished difference. Result has 81 places, 0 transitions, 0 flow [2022-11-20 11:17:28,628 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=81, PETRI_TRANSITIONS=0} [2022-11-20 11:17:28,633 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 0 predicate places. [2022-11-20 11:17:28,633 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 0 transitions, 0 flow [2022-11-20 11:17:28,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 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 11:17:28,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2022-11-20 11:17:28,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 6 remaining) [2022-11-20 11:17:28,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2022-11-20 11:17:28,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2022-11-20 11:17:28,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2022-11-20 11:17:28,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2022-11-20 11:17:28,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:17:28,639 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2022-11-20 11:17:28,652 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 11:17:28,653 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:17:28,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:17:28 BasicIcfg [2022-11-20 11:17:28,666 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:17:28,666 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:17:28,666 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:17:28,667 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:17:28,669 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:17:26" (3/4) ... [2022-11-20 11:17:28,673 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:17:28,681 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-20 11:17:28,687 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-20 11:17:28,687 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 11:17:28,688 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 11:17:28,688 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:17:28,749 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_967484c5-75c0-4ff7-a5af-04296d0b63b0/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:17:28,749 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:17:28,750 INFO L158 Benchmark]: Toolchain (without parser) took 3796.56ms. Allocated memory is still 188.7MB. Free memory was 160.7MB in the beginning and 136.2MB in the end (delta: 24.5MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2022-11-20 11:17:28,752 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory is still 90.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:17:28,753 INFO L158 Benchmark]: CACSL2BoogieTranslator took 599.27ms. Allocated memory is still 188.7MB. Free memory was 160.7MB in the beginning and 147.3MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 11:17:28,753 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.31ms. Allocated memory is still 188.7MB. Free memory was 147.3MB in the beginning and 145.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:17:28,753 INFO L158 Benchmark]: Boogie Preprocessor took 43.90ms. Allocated memory is still 188.7MB. Free memory was 145.2MB in the beginning and 143.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:17:28,754 INFO L158 Benchmark]: RCFGBuilder took 562.27ms. Allocated memory is still 188.7MB. Free memory was 143.1MB in the beginning and 129.5MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 11:17:28,755 INFO L158 Benchmark]: TraceAbstraction took 2446.24ms. Allocated memory is still 188.7MB. Free memory was 128.4MB in the beginning and 138.3MB in the end (delta: -9.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:17:28,755 INFO L158 Benchmark]: Witness Printer took 82.73ms. Allocated memory is still 188.7MB. Free memory was 138.3MB in the beginning and 136.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:17:28,757 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 121.6MB. Free memory is still 90.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 599.27ms. Allocated memory is still 188.7MB. Free memory was 160.7MB in the beginning and 147.3MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.31ms. Allocated memory is still 188.7MB. Free memory was 147.3MB in the beginning and 145.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.90ms. Allocated memory is still 188.7MB. Free memory was 145.2MB in the beginning and 143.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 562.27ms. Allocated memory is still 188.7MB. Free memory was 143.1MB in the beginning and 129.5MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2446.24ms. Allocated memory is still 188.7MB. Free memory was 128.4MB in the beginning and 138.3MB in the end (delta: -9.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 82.73ms. Allocated memory is still 188.7MB. Free memory was 138.3MB in the beginning and 136.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 687]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 689]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 102 locations, 6 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: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 52 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 52 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 145 IncrementalHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 35 mSDtfsCounter, 145 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=228occurred in iteration=4, InterpolantAutomatonStates: 19, 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, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 227 NumberOfCodeBlocks, 227 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 492 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 11:17:28,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_967484c5-75c0-4ff7-a5af-04296d0b63b0/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE