./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/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_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/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_7ced0975-b750-491a-bca3-f3bdf224f1ef/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 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 --- 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 12:06:50,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:06:50,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:06:50,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:06:50,504 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:06:50,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:06:50,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:06:50,509 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:06:50,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:06:50,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:06:50,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:06:50,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:06:50,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:06:50,516 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:06:50,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:06:50,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:06:50,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:06:50,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:06:50,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:06:50,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:06:50,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:06:50,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:06:50,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:06:50,535 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:06:50,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:06:50,540 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:06:50,540 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:06:50,541 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:06:50,542 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:06:50,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:06:50,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:06:50,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:06:50,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:06:50,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:06:50,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:06:50,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:06:50,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:06:50,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:06:50,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:06:50,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:06:50,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:06:50,568 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 12:06:50,622 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:06:50,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:06:50,623 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:06:50,623 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:06:50,624 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:06:50,625 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:06:50,626 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:06:50,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:06:50,626 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:06:50,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:06:50,628 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:06:50,628 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:06:50,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:06:50,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:06:50,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:06:50,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:06:50,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:06:50,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:06:50,630 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 12:06:50,631 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:06:50,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:06:50,631 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:06:50,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:06:50,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:06:50,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:06:50,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:06:50,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:06:50,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:06:50,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:06:50,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:06:50,634 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:06:50,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:06:50,635 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:06:50,635 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:06:50,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:06:50,636 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_7ced0975-b750-491a-bca3-f3bdf224f1ef/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 [2022-11-20 12:06:51,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:06:51,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:06:51,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:06:51,065 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:06:51,065 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:06:51,067 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2022-11-20 12:06:54,410 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:06:54,687 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:06:54,688 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2022-11-20 12:06:54,704 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/data/b0a24487b/8d13063641d34fcca0f102a990c40ce3/FLAGd7133f04f [2022-11-20 12:06:54,740 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/data/b0a24487b/8d13063641d34fcca0f102a990c40ce3 [2022-11-20 12:06:54,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:06:54,745 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:06:54,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:06:54,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:06:54,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:06:54,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:06:54" (1/1) ... [2022-11-20 12:06:54,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d398643 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:54, skipping insertion in model container [2022-11-20 12:06:54,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:06:54" (1/1) ... [2022-11-20 12:06:54,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:06:54,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:06:55,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:06:55,340 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:06:55,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:06:55,484 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:06:55,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:55 WrapperNode [2022-11-20 12:06:55,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:06:55,487 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:06:55,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:06:55,488 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:06:55,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:55" (1/1) ... [2022-11-20 12:06:55,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:55" (1/1) ... [2022-11-20 12:06:55,584 INFO L138 Inliner]: procedures = 161, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2022-11-20 12:06:55,585 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:06:55,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:06:55,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:06:55,586 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:06:55,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:55" (1/1) ... [2022-11-20 12:06:55,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:55" (1/1) ... [2022-11-20 12:06:55,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:55" (1/1) ... [2022-11-20 12:06:55,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:55" (1/1) ... [2022-11-20 12:06:55,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:55" (1/1) ... [2022-11-20 12:06:55,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:55" (1/1) ... [2022-11-20 12:06:55,637 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:55" (1/1) ... [2022-11-20 12:06:55,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:55" (1/1) ... [2022-11-20 12:06:55,642 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:06:55,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:06:55,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:06:55,643 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:06:55,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:55" (1/1) ... [2022-11-20 12:06:55,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:06:55,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:06:55,683 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:06:55,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:06:55,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:06:55,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:06:55,754 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 12:06:55,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:06:55,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:06:55,755 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 12:06:55,755 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 12:06:55,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:06:55,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:06:55,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:06:55,764 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 12:06:55,927 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:06:55,930 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:06:56,344 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:06:56,353 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:06:56,354 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 12:06:56,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:06:56 BoogieIcfgContainer [2022-11-20 12:06:56,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:06:56,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:06:56,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:06:56,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:06:56,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:06:54" (1/3) ... [2022-11-20 12:06:56,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428f795c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:06:56, skipping insertion in model container [2022-11-20 12:06:56,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:55" (2/3) ... [2022-11-20 12:06:56,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428f795c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:06:56, skipping insertion in model container [2022-11-20 12:06:56,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:06:56" (3/3) ... [2022-11-20 12:06:56,380 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_23-idxsense_nr.i [2022-11-20 12:06:56,393 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:06:56,406 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:06:56,406 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-20 12:06:56,407 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:06:56,512 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 12:06:56,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 105 transitions, 215 flow [2022-11-20 12:06:56,614 INFO L130 PetriNetUnfolder]: 2/104 cut-off events. [2022-11-20 12:06:56,615 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:06:56,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 104 events. 2/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2022-11-20 12:06:56,620 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 105 transitions, 215 flow [2022-11-20 12:06:56,626 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 104 transitions, 211 flow [2022-11-20 12:06:56,638 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:06:56,647 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;@28d07cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:06:56,647 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-11-20 12:06:56,665 INFO L130 PetriNetUnfolder]: 2/44 cut-off events. [2022-11-20 12:06:56,665 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:06:56,665 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:06:56,666 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] [2022-11-20 12:06:56,667 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-11-20 12:06:56,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:06:56,674 INFO L85 PathProgramCache]: Analyzing trace with hash 513122938, now seen corresponding path program 1 times [2022-11-20 12:06:56,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:06:56,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568925221] [2022-11-20 12:06:56,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:06:56,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:06:56,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:06:57,042 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 12:06:57,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:06:57,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568925221] [2022-11-20 12:06:57,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568925221] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:06:57,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:06:57,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:06:57,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481296438] [2022-11-20 12:06:57,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:06:57,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:06:57,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:06:57,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:06:57,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:06:57,111 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 105 [2022-11-20 12:06:57,118 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 104 transitions, 211 flow. Second operand has 2 states, 2 states have (on average 104.0) internal successors, (208), 2 states have internal predecessors, (208), 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 12:06:57,120 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:06:57,121 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 105 [2022-11-20 12:06:57,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:06:57,208 INFO L130 PetriNetUnfolder]: 1/103 cut-off events. [2022-11-20 12:06:57,208 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 12:06:57,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 103 events. 1/103 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 1/97 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2022-11-20 12:06:57,211 INFO L137 encePairwiseOnDemand]: 104/105 looper letters, 1 selfloop transitions, 0 changer transitions 0/103 dead transitions. [2022-11-20 12:06:57,212 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 103 transitions, 211 flow [2022-11-20 12:06:57,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:06:57,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-20 12:06:57,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 208 transitions. [2022-11-20 12:06:57,231 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9904761904761905 [2022-11-20 12:06:57,232 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 208 transitions. [2022-11-20 12:06:57,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 208 transitions. [2022-11-20 12:06:57,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:06:57,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 208 transitions. [2022-11-20 12:06:57,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 104.0) internal successors, (208), 2 states have internal predecessors, (208), 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 12:06:57,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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 12:06:57,258 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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 12:06:57,260 INFO L175 Difference]: Start difference. First operand has 106 places, 104 transitions, 211 flow. Second operand 2 states and 208 transitions. [2022-11-20 12:06:57,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 103 transitions, 211 flow [2022-11-20 12:06:57,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 103 transitions, 210 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:06:57,272 INFO L231 Difference]: Finished difference. Result has 106 places, 103 transitions, 208 flow [2022-11-20 12:06:57,275 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=208, PETRI_PLACES=106, PETRI_TRANSITIONS=103} [2022-11-20 12:06:57,281 INFO L288 CegarLoopForPetriNet]: 106 programPoint places, 0 predicate places. [2022-11-20 12:06:57,282 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 103 transitions, 208 flow [2022-11-20 12:06:57,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 104.0) internal successors, (208), 2 states have internal predecessors, (208), 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 12:06:57,282 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:06:57,283 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] [2022-11-20 12:06:57,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:06:57,285 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-11-20 12:06:57,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:06:57,287 INFO L85 PathProgramCache]: Analyzing trace with hash 2020674747, now seen corresponding path program 1 times [2022-11-20 12:06:57,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:06:57,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218697548] [2022-11-20 12:06:57,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:06:57,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:06:57,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:06:57,512 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 12:06:57,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:06:57,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218697548] [2022-11-20 12:06:57,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218697548] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:06:57,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:06:57,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:06:57,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282170209] [2022-11-20 12:06:57,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:06:57,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:06:57,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:06:57,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:06:57,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:06:57,520 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 105 [2022-11-20 12:06:57,521 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 103 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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 12:06:57,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:06:57,521 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 105 [2022-11-20 12:06:57,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:06:57,578 INFO L130 PetriNetUnfolder]: 1/107 cut-off events. [2022-11-20 12:06:57,579 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:06:57,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 107 events. 1/107 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 121. Up to 9 conditions per place. [2022-11-20 12:06:57,580 INFO L137 encePairwiseOnDemand]: 102/105 looper letters, 10 selfloop transitions, 2 changer transitions 0/107 dead transitions. [2022-11-20 12:06:57,580 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 107 transitions, 240 flow [2022-11-20 12:06:57,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:06:57,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:06:57,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 301 transitions. [2022-11-20 12:06:57,584 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9555555555555556 [2022-11-20 12:06:57,584 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 301 transitions. [2022-11-20 12:06:57,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 301 transitions. [2022-11-20 12:06:57,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:06:57,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 301 transitions. [2022-11-20 12:06:57,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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 12:06:57,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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 12:06:57,640 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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 12:06:57,640 INFO L175 Difference]: Start difference. First operand has 106 places, 103 transitions, 208 flow. Second operand 3 states and 301 transitions. [2022-11-20 12:06:57,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 107 transitions, 240 flow [2022-11-20 12:06:57,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 107 transitions, 240 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 12:06:57,660 INFO L231 Difference]: Finished difference. Result has 109 places, 104 transitions, 220 flow [2022-11-20 12:06:57,661 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=109, PETRI_TRANSITIONS=104} [2022-11-20 12:06:57,662 INFO L288 CegarLoopForPetriNet]: 106 programPoint places, 3 predicate places. [2022-11-20 12:06:57,662 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 104 transitions, 220 flow [2022-11-20 12:06:57,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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 12:06:57,663 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:06:57,663 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] [2022-11-20 12:06:57,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:06:57,665 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-11-20 12:06:57,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:06:57,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1130899873, now seen corresponding path program 1 times [2022-11-20 12:06:57,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:06:57,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700586271] [2022-11-20 12:06:57,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:06:57,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:06:57,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:06:58,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:06:58,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:06:58,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700586271] [2022-11-20 12:06:58,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700586271] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:06:58,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663237201] [2022-11-20 12:06:58,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:06:58,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:06:58,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:06:58,026 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:06:58,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 12:06:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:06:58,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:06:58,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:06:58,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:06:58,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:06:58,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:06:58,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663237201] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:06:58,304 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:06:58,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 12:06:58,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893819529] [2022-11-20 12:06:58,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:06:58,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 12:06:58,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:06:58,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 12:06:58,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:06:58,310 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 105 [2022-11-20 12:06:58,311 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 104 transitions, 220 flow. Second operand has 10 states, 10 states have (on average 97.1) internal successors, (971), 10 states have internal predecessors, (971), 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 12:06:58,312 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:06:58,312 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 105 [2022-11-20 12:06:58,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:06:58,449 INFO L130 PetriNetUnfolder]: 1/114 cut-off events. [2022-11-20 12:06:58,450 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 12:06:58,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 114 events. 1/114 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 2/110 useless extension candidates. Maximal degree in co-relation 142. Up to 6 conditions per place. [2022-11-20 12:06:58,451 INFO L137 encePairwiseOnDemand]: 99/105 looper letters, 11 selfloop transitions, 9 changer transitions 0/114 dead transitions. [2022-11-20 12:06:58,451 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 114 transitions, 282 flow [2022-11-20 12:06:58,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:06:58,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 12:06:58,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 877 transitions. [2022-11-20 12:06:58,456 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.928042328042328 [2022-11-20 12:06:58,456 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 877 transitions. [2022-11-20 12:06:58,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 877 transitions. [2022-11-20 12:06:58,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:06:58,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 877 transitions. [2022-11-20 12:06:58,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 97.44444444444444) internal successors, (877), 9 states have internal predecessors, (877), 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 12:06:58,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 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 12:06:58,465 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 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 12:06:58,466 INFO L175 Difference]: Start difference. First operand has 109 places, 104 transitions, 220 flow. Second operand 9 states and 877 transitions. [2022-11-20 12:06:58,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 114 transitions, 282 flow [2022-11-20 12:06:58,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 114 transitions, 280 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:06:58,470 INFO L231 Difference]: Finished difference. Result has 119 places, 110 transitions, 268 flow [2022-11-20 12:06:58,471 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=268, PETRI_PLACES=119, PETRI_TRANSITIONS=110} [2022-11-20 12:06:58,472 INFO L288 CegarLoopForPetriNet]: 106 programPoint places, 13 predicate places. [2022-11-20 12:06:58,472 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 110 transitions, 268 flow [2022-11-20 12:06:58,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 97.1) internal successors, (971), 10 states have internal predecessors, (971), 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 12:06:58,473 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:06:58,474 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 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 12:06:58,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:06:58,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:06:58,681 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-11-20 12:06:58,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:06:58,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1774591519, now seen corresponding path program 2 times [2022-11-20 12:06:58,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:06:58,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753191401] [2022-11-20 12:06:58,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:06:58,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:06:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:06:58,936 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:06:58,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:06:58,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753191401] [2022-11-20 12:06:58,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753191401] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:06:58,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297745571] [2022-11-20 12:06:58,937 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:06:58,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:06:58,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:06:58,940 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:06:58,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 12:06:59,077 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:06:59,078 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:06:59,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 12:06:59,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:06:59,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-20 12:06:59,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-20 12:06:59,254 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:06:59,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-20 12:06:59,321 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:06:59,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2022-11-20 12:06:59,368 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-20 12:06:59,372 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:06:59,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297745571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:06:59,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:06:59,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2022-11-20 12:06:59,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735193106] [2022-11-20 12:06:59,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:06:59,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:06:59,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:06:59,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:06:59,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:06:59,385 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 105 [2022-11-20 12:06:59,386 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 110 transitions, 268 flow. Second operand has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 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 12:06:59,386 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:06:59,386 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 105 [2022-11-20 12:06:59,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:07:00,601 INFO L130 PetriNetUnfolder]: 514/1584 cut-off events. [2022-11-20 12:07:00,601 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-20 12:07:00,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2711 conditions, 1584 events. 514/1584 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 9761 event pairs, 175 based on Foata normal form. 0/1439 useless extension candidates. Maximal degree in co-relation 2704. Up to 498 conditions per place. [2022-11-20 12:07:00,620 INFO L137 encePairwiseOnDemand]: 83/105 looper letters, 169 selfloop transitions, 42 changer transitions 0/276 dead transitions. [2022-11-20 12:07:00,620 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 276 transitions, 1022 flow [2022-11-20 12:07:00,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:07:00,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:07:00,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 567 transitions. [2022-11-20 12:07:00,623 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9 [2022-11-20 12:07:00,624 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 567 transitions. [2022-11-20 12:07:00,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 567 transitions. [2022-11-20 12:07:00,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:07:00,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 567 transitions. [2022-11-20 12:07:00,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.5) internal successors, (567), 6 states have internal predecessors, (567), 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 12:07:00,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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 12:07:00,629 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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 12:07:00,629 INFO L175 Difference]: Start difference. First operand has 119 places, 110 transitions, 268 flow. Second operand 6 states and 567 transitions. [2022-11-20 12:07:00,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 276 transitions, 1022 flow [2022-11-20 12:07:00,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 276 transitions, 1016 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-20 12:07:00,637 INFO L231 Difference]: Finished difference. Result has 128 places, 156 transitions, 578 flow [2022-11-20 12:07:00,638 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=578, PETRI_PLACES=128, PETRI_TRANSITIONS=156} [2022-11-20 12:07:00,639 INFO L288 CegarLoopForPetriNet]: 106 programPoint places, 22 predicate places. [2022-11-20 12:07:00,639 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 156 transitions, 578 flow [2022-11-20 12:07:00,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 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 12:07:00,640 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:07:00,640 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 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 12:07:00,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:07:00,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:07:00,847 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-11-20 12:07:00,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:07:00,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1716795506, now seen corresponding path program 1 times [2022-11-20 12:07:00,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:07:00,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172258282] [2022-11-20 12:07:00,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:07:00,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:07:00,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:07:01,109 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:07:01,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:07:01,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172258282] [2022-11-20 12:07:01,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172258282] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:07:01,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389714821] [2022-11-20 12:07:01,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:07:01,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:07:01,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:07:01,112 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:07:01,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 12:07:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:07:01,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 12:07:01,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:07:01,325 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:07:01,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:07:01,460 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:07:01,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389714821] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:07:01,461 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:07:01,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-20 12:07:01,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579122566] [2022-11-20 12:07:01,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:07:01,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 12:07:01,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:07:01,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 12:07:01,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-20 12:07:01,472 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 105 [2022-11-20 12:07:01,475 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 156 transitions, 578 flow. Second operand has 18 states, 18 states have (on average 97.27777777777777) internal successors, (1751), 18 states have internal predecessors, (1751), 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 12:07:01,475 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:07:01,475 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 105 [2022-11-20 12:07:01,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:07:01,907 INFO L130 PetriNetUnfolder]: 115/688 cut-off events. [2022-11-20 12:07:01,908 INFO L131 PetriNetUnfolder]: For 114/138 co-relation queries the response was YES. [2022-11-20 12:07:01,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1274 conditions, 688 events. 115/688 cut-off events. For 114/138 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4027 event pairs, 24 based on Foata normal form. 7/677 useless extension candidates. Maximal degree in co-relation 1262. Up to 118 conditions per place. [2022-11-20 12:07:01,914 INFO L137 encePairwiseOnDemand]: 99/105 looper letters, 19 selfloop transitions, 21 changer transitions 0/180 dead transitions. [2022-11-20 12:07:01,914 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 180 transitions, 758 flow [2022-11-20 12:07:01,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 12:07:01,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 12:07:01,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2039 transitions. [2022-11-20 12:07:01,921 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9247165532879819 [2022-11-20 12:07:01,921 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2039 transitions. [2022-11-20 12:07:01,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2039 transitions. [2022-11-20 12:07:01,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:07:01,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2039 transitions. [2022-11-20 12:07:01,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 97.0952380952381) internal successors, (2039), 21 states have internal predecessors, (2039), 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 12:07:01,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 105.0) internal successors, (2310), 22 states have internal predecessors, (2310), 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 12:07:01,937 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 105.0) internal successors, (2310), 22 states have internal predecessors, (2310), 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 12:07:01,938 INFO L175 Difference]: Start difference. First operand has 128 places, 156 transitions, 578 flow. Second operand 21 states and 2039 transitions. [2022-11-20 12:07:01,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 180 transitions, 758 flow [2022-11-20 12:07:01,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 180 transitions, 758 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 12:07:01,952 INFO L231 Difference]: Finished difference. Result has 153 places, 169 transitions, 708 flow [2022-11-20 12:07:01,953 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=708, PETRI_PLACES=153, PETRI_TRANSITIONS=169} [2022-11-20 12:07:01,956 INFO L288 CegarLoopForPetriNet]: 106 programPoint places, 47 predicate places. [2022-11-20 12:07:01,957 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 169 transitions, 708 flow [2022-11-20 12:07:01,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 97.27777777777777) internal successors, (1751), 18 states have internal predecessors, (1751), 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 12:07:01,958 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:07:01,959 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 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 12:07:01,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:07:02,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:07:02,166 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-11-20 12:07:02,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:07:02,167 INFO L85 PathProgramCache]: Analyzing trace with hash 2072561650, now seen corresponding path program 2 times [2022-11-20 12:07:02,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:07:02,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719601065] [2022-11-20 12:07:02,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:07:02,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:07:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:07:02,663 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:07:02,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:07:02,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719601065] [2022-11-20 12:07:02,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719601065] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:07:02,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004174861] [2022-11-20 12:07:02,664 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:07:02,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:07:02,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:07:02,670 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:07:02,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 12:07:02,777 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:07:02,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:07:02,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 12:07:02,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:07:02,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-20 12:07:02,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-20 12:07:02,854 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:07:02,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-20 12:07:02,913 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:07:02,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2022-11-20 12:07:02,965 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-20 12:07:02,965 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:07:02,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004174861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:07:02,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:07:02,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-20 12:07:02,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637414691] [2022-11-20 12:07:02,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:07:02,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:07:02,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:07:02,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:07:02,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-20 12:07:02,991 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 105 [2022-11-20 12:07:02,991 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 169 transitions, 708 flow. Second operand has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 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 12:07:02,992 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:07:02,992 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 105 [2022-11-20 12:07:02,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:07:03,628 INFO L130 PetriNetUnfolder]: 501/1541 cut-off events. [2022-11-20 12:07:03,628 INFO L131 PetriNetUnfolder]: For 724/724 co-relation queries the response was YES. [2022-11-20 12:07:03,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3729 conditions, 1541 events. 501/1541 cut-off events. For 724/724 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 9106 event pairs, 262 based on Foata normal form. 0/1527 useless extension candidates. Maximal degree in co-relation 3712. Up to 905 conditions per place. [2022-11-20 12:07:03,644 INFO L137 encePairwiseOnDemand]: 99/105 looper letters, 137 selfloop transitions, 5 changer transitions 0/220 dead transitions. [2022-11-20 12:07:03,644 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 220 transitions, 1222 flow [2022-11-20 12:07:03,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:07:03,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:07:03,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 451 transitions. [2022-11-20 12:07:03,651 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7158730158730159 [2022-11-20 12:07:03,652 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 451 transitions. [2022-11-20 12:07:03,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 451 transitions. [2022-11-20 12:07:03,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:07:03,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 451 transitions. [2022-11-20 12:07:03,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 75.16666666666667) internal successors, (451), 6 states have internal predecessors, (451), 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 12:07:03,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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 12:07:03,658 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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 12:07:03,658 INFO L175 Difference]: Start difference. First operand has 153 places, 169 transitions, 708 flow. Second operand 6 states and 451 transitions. [2022-11-20 12:07:03,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 220 transitions, 1222 flow [2022-11-20 12:07:03,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 220 transitions, 1198 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-20 12:07:03,671 INFO L231 Difference]: Finished difference. Result has 151 places, 168 transitions, 692 flow [2022-11-20 12:07:03,671 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=692, PETRI_PLACES=151, PETRI_TRANSITIONS=168} [2022-11-20 12:07:03,675 INFO L288 CegarLoopForPetriNet]: 106 programPoint places, 45 predicate places. [2022-11-20 12:07:03,675 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 168 transitions, 692 flow [2022-11-20 12:07:03,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 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 12:07:03,676 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:07:03,676 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:07:03,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:07:03,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:07:03,883 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-11-20 12:07:03,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:07:03,884 INFO L85 PathProgramCache]: Analyzing trace with hash -2100397338, now seen corresponding path program 1 times [2022-11-20 12:07:03,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:07:03,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355824454] [2022-11-20 12:07:03,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:07:03,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:07:03,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:07:04,388 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:07:04,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:07:04,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355824454] [2022-11-20 12:07:04,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355824454] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:07:04,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740128669] [2022-11-20 12:07:04,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:07:04,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:07:04,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:07:04,392 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:07:04,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 12:07:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:07:04,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 12:07:04,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:07:04,671 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:07:04,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:07:04,965 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:07:04,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740128669] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:07:04,966 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:07:04,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-20 12:07:04,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188991599] [2022-11-20 12:07:04,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:07:04,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 12:07:04,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:07:04,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 12:07:04,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-20 12:07:04,971 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 105 [2022-11-20 12:07:04,973 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 168 transitions, 692 flow. Second operand has 23 states, 23 states have (on average 97.43478260869566) internal successors, (2241), 23 states have internal predecessors, (2241), 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 12:07:04,974 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:07:04,974 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 105 [2022-11-20 12:07:04,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:07:05,549 INFO L130 PetriNetUnfolder]: 115/702 cut-off events. [2022-11-20 12:07:05,550 INFO L131 PetriNetUnfolder]: For 221/245 co-relation queries the response was YES. [2022-11-20 12:07:05,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1372 conditions, 702 events. 115/702 cut-off events. For 221/245 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4025 event pairs, 24 based on Foata normal form. 6/691 useless extension candidates. Maximal degree in co-relation 1354. Up to 118 conditions per place. [2022-11-20 12:07:05,556 INFO L137 encePairwiseOnDemand]: 99/105 looper letters, 25 selfloop transitions, 30 changer transitions 0/194 dead transitions. [2022-11-20 12:07:05,556 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 194 transitions, 942 flow [2022-11-20 12:07:05,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-20 12:07:05,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-20 12:07:05,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2908 transitions. [2022-11-20 12:07:05,565 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9231746031746032 [2022-11-20 12:07:05,565 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2908 transitions. [2022-11-20 12:07:05,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2908 transitions. [2022-11-20 12:07:05,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:07:05,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2908 transitions. [2022-11-20 12:07:05,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 96.93333333333334) internal successors, (2908), 30 states have internal predecessors, (2908), 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 12:07:05,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 105.0) internal successors, (3255), 31 states have internal predecessors, (3255), 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 12:07:05,585 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 105.0) internal successors, (3255), 31 states have internal predecessors, (3255), 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 12:07:05,585 INFO L175 Difference]: Start difference. First operand has 151 places, 168 transitions, 692 flow. Second operand 30 states and 2908 transitions. [2022-11-20 12:07:05,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 194 transitions, 942 flow [2022-11-20 12:07:05,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 194 transitions, 932 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 12:07:05,594 INFO L231 Difference]: Finished difference. Result has 179 places, 178 transitions, 834 flow [2022-11-20 12:07:05,594 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=834, PETRI_PLACES=179, PETRI_TRANSITIONS=178} [2022-11-20 12:07:05,595 INFO L288 CegarLoopForPetriNet]: 106 programPoint places, 73 predicate places. [2022-11-20 12:07:05,596 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 178 transitions, 834 flow [2022-11-20 12:07:05,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 97.43478260869566) internal successors, (2241), 23 states have internal predecessors, (2241), 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 12:07:05,597 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:07:05,597 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:07:05,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:07:05,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:07:05,804 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-11-20 12:07:05,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:07:05,805 INFO L85 PathProgramCache]: Analyzing trace with hash 986327552, now seen corresponding path program 2 times [2022-11-20 12:07:05,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:07:05,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751533224] [2022-11-20 12:07:05,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:07:05,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:07:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:07:06,374 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-20 12:07:06,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:07:06,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751533224] [2022-11-20 12:07:06,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751533224] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:07:06,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:07:06,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:07:06,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251911012] [2022-11-20 12:07:06,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:07:06,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:07:06,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:07:06,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:07:06,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:07:06,377 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 105 [2022-11-20 12:07:06,378 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 178 transitions, 834 flow. Second operand has 6 states, 6 states have (on average 59.666666666666664) internal successors, (358), 6 states have internal predecessors, (358), 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 12:07:06,379 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:07:06,379 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 105 [2022-11-20 12:07:06,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:07:07,262 INFO L130 PetriNetUnfolder]: 684/2000 cut-off events. [2022-11-20 12:07:07,262 INFO L131 PetriNetUnfolder]: For 892/894 co-relation queries the response was YES. [2022-11-20 12:07:07,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4937 conditions, 2000 events. 684/2000 cut-off events. For 892/894 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 12502 event pairs, 269 based on Foata normal form. 38/2019 useless extension candidates. Maximal degree in co-relation 4916. Up to 964 conditions per place. [2022-11-20 12:07:07,277 INFO L137 encePairwiseOnDemand]: 88/105 looper letters, 179 selfloop transitions, 53 changer transitions 3/321 dead transitions. [2022-11-20 12:07:07,277 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 321 transitions, 1784 flow [2022-11-20 12:07:07,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:07:07,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:07:07,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 517 transitions. [2022-11-20 12:07:07,280 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8206349206349206 [2022-11-20 12:07:07,280 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 517 transitions. [2022-11-20 12:07:07,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 517 transitions. [2022-11-20 12:07:07,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:07:07,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 517 transitions. [2022-11-20 12:07:07,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 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 12:07:07,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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 12:07:07,284 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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 12:07:07,284 INFO L175 Difference]: Start difference. First operand has 179 places, 178 transitions, 834 flow. Second operand 6 states and 517 transitions. [2022-11-20 12:07:07,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 321 transitions, 1784 flow [2022-11-20 12:07:07,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 321 transitions, 1738 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-20 12:07:07,296 INFO L231 Difference]: Finished difference. Result has 171 places, 229 transitions, 1294 flow [2022-11-20 12:07:07,296 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=788, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1294, PETRI_PLACES=171, PETRI_TRANSITIONS=229} [2022-11-20 12:07:07,299 INFO L288 CegarLoopForPetriNet]: 106 programPoint places, 65 predicate places. [2022-11-20 12:07:07,299 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 229 transitions, 1294 flow [2022-11-20 12:07:07,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.666666666666664) internal successors, (358), 6 states have internal predecessors, (358), 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 12:07:07,300 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:07:07,300 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:07:07,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:07:07,300 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-11-20 12:07:07,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:07:07,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1487024271, now seen corresponding path program 1 times [2022-11-20 12:07:07,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:07:07,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122496868] [2022-11-20 12:07:07,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:07:07,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:07:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:07:07,783 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-20 12:07:07,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:07:07,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122496868] [2022-11-20 12:07:07,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122496868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:07:07,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:07:07,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:07:07,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730712720] [2022-11-20 12:07:07,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:07:07,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:07:07,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:07:07,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:07:07,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:07:07,787 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 105 [2022-11-20 12:07:07,788 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 229 transitions, 1294 flow. Second operand has 6 states, 6 states have (on average 58.833333333333336) internal successors, (353), 6 states have internal predecessors, (353), 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 12:07:07,788 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:07:07,788 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 105 [2022-11-20 12:07:07,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:07:08,532 INFO L130 PetriNetUnfolder]: 610/1869 cut-off events. [2022-11-20 12:07:08,532 INFO L131 PetriNetUnfolder]: For 2200/2200 co-relation queries the response was YES. [2022-11-20 12:07:08,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5610 conditions, 1869 events. 610/1869 cut-off events. For 2200/2200 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 11665 event pairs, 263 based on Foata normal form. 0/1863 useless extension candidates. Maximal degree in co-relation 5584. Up to 1177 conditions per place. [2022-11-20 12:07:08,550 INFO L137 encePairwiseOnDemand]: 99/105 looper letters, 182 selfloop transitions, 5 changer transitions 0/276 dead transitions. [2022-11-20 12:07:08,550 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 276 transitions, 1962 flow [2022-11-20 12:07:08,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:07:08,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:07:08,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 431 transitions. [2022-11-20 12:07:08,552 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6841269841269841 [2022-11-20 12:07:08,553 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 431 transitions. [2022-11-20 12:07:08,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 431 transitions. [2022-11-20 12:07:08,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:07:08,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 431 transitions. [2022-11-20 12:07:08,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 71.83333333333333) internal successors, (431), 6 states have internal predecessors, (431), 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 12:07:08,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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 12:07:08,557 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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 12:07:08,557 INFO L175 Difference]: Start difference. First operand has 171 places, 229 transitions, 1294 flow. Second operand 6 states and 431 transitions. [2022-11-20 12:07:08,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 276 transitions, 1962 flow [2022-11-20 12:07:08,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 276 transitions, 1954 flow, removed 4 selfloop flow, removed 0 redundant places. [2022-11-20 12:07:08,579 INFO L231 Difference]: Finished difference. Result has 175 places, 228 transitions, 1294 flow [2022-11-20 12:07:08,579 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=1284, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1294, PETRI_PLACES=175, PETRI_TRANSITIONS=228} [2022-11-20 12:07:08,580 INFO L288 CegarLoopForPetriNet]: 106 programPoint places, 69 predicate places. [2022-11-20 12:07:08,581 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 228 transitions, 1294 flow [2022-11-20 12:07:08,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.833333333333336) internal successors, (353), 6 states have internal predecessors, (353), 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 12:07:08,581 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:07:08,582 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:07:08,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:07:08,582 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-11-20 12:07:08,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:07:08,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1985777840, now seen corresponding path program 1 times [2022-11-20 12:07:08,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:07:08,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852750642] [2022-11-20 12:07:08,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:07:08,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:07:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:07:09,227 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-20 12:07:09,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:07:09,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852750642] [2022-11-20 12:07:09,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852750642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:07:09,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:07:09,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:07:09,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198282064] [2022-11-20 12:07:09,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:07:09,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:07:09,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:07:09,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:07:09,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:07:09,233 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 105 [2022-11-20 12:07:09,234 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 228 transitions, 1294 flow. Second operand has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 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 12:07:09,234 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:07:09,234 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 105 [2022-11-20 12:07:09,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:07:10,085 INFO L130 PetriNetUnfolder]: 754/2250 cut-off events. [2022-11-20 12:07:10,085 INFO L131 PetriNetUnfolder]: For 2591/2593 co-relation queries the response was YES. [2022-11-20 12:07:10,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6820 conditions, 2250 events. 754/2250 cut-off events. For 2591/2593 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 14881 event pairs, 305 based on Foata normal form. 28/2272 useless extension candidates. Maximal degree in co-relation 6793. Up to 1209 conditions per place. [2022-11-20 12:07:10,108 INFO L137 encePairwiseOnDemand]: 88/105 looper letters, 146 selfloop transitions, 58 changer transitions 36/328 dead transitions. [2022-11-20 12:07:10,109 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 328 transitions, 2330 flow [2022-11-20 12:07:10,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:07:10,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:07:10,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 459 transitions. [2022-11-20 12:07:10,112 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7285714285714285 [2022-11-20 12:07:10,112 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 459 transitions. [2022-11-20 12:07:10,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 459 transitions. [2022-11-20 12:07:10,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:07:10,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 459 transitions. [2022-11-20 12:07:10,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 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 12:07:10,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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 12:07:10,116 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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 12:07:10,116 INFO L175 Difference]: Start difference. First operand has 175 places, 228 transitions, 1294 flow. Second operand 6 states and 459 transitions. [2022-11-20 12:07:10,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 328 transitions, 2330 flow [2022-11-20 12:07:10,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 328 transitions, 2320 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 12:07:10,140 INFO L231 Difference]: Finished difference. Result has 179 places, 255 transitions, 1692 flow [2022-11-20 12:07:10,141 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=1284, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1692, PETRI_PLACES=179, PETRI_TRANSITIONS=255} [2022-11-20 12:07:10,142 INFO L288 CegarLoopForPetriNet]: 106 programPoint places, 73 predicate places. [2022-11-20 12:07:10,143 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 255 transitions, 1692 flow [2022-11-20 12:07:10,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 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 12:07:10,143 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:07:10,144 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:07:10,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:07:10,144 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-11-20 12:07:10,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:07:10,145 INFO L85 PathProgramCache]: Analyzing trace with hash 929258206, now seen corresponding path program 1 times [2022-11-20 12:07:10,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:07:10,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359767607] [2022-11-20 12:07:10,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:07:10,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:07:10,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:07:10,463 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-20 12:07:10,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:07:10,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359767607] [2022-11-20 12:07:10,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359767607] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:07:10,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:07:10,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:07:10,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13030117] [2022-11-20 12:07:10,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:07:10,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:07:10,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:07:10,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:07:10,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:07:10,469 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 105 [2022-11-20 12:07:10,470 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 255 transitions, 1692 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 12:07:10,470 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:07:10,470 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 105 [2022-11-20 12:07:10,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:07:10,540 INFO L130 PetriNetUnfolder]: 6/237 cut-off events. [2022-11-20 12:07:10,540 INFO L131 PetriNetUnfolder]: For 279/279 co-relation queries the response was YES. [2022-11-20 12:07:10,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 633 conditions, 237 events. 6/237 cut-off events. For 279/279 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 311 event pairs, 3 based on Foata normal form. 2/239 useless extension candidates. Maximal degree in co-relation 602. Up to 24 conditions per place. [2022-11-20 12:07:10,542 INFO L137 encePairwiseOnDemand]: 101/105 looper letters, 0 selfloop transitions, 0 changer transitions 129/129 dead transitions. [2022-11-20 12:07:10,542 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 129 transitions, 628 flow [2022-11-20 12:07:10,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:07:10,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:07:10,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2022-11-20 12:07:10,544 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9396825396825397 [2022-11-20 12:07:10,544 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 296 transitions. [2022-11-20 12:07:10,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 296 transitions. [2022-11-20 12:07:10,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:07:10,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 296 transitions. [2022-11-20 12:07:10,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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 12:07:10,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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 12:07:10,548 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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 12:07:10,548 INFO L175 Difference]: Start difference. First operand has 179 places, 255 transitions, 1692 flow. Second operand 3 states and 296 transitions. [2022-11-20 12:07:10,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 129 transitions, 628 flow [2022-11-20 12:07:10,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 129 transitions, 490 flow, removed 30 selfloop flow, removed 29 redundant places. [2022-11-20 12:07:10,555 INFO L231 Difference]: Finished difference. Result has 148 places, 0 transitions, 0 flow [2022-11-20 12:07:10,555 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=148, PETRI_TRANSITIONS=0} [2022-11-20 12:07:10,556 INFO L288 CegarLoopForPetriNet]: 106 programPoint places, 42 predicate places. [2022-11-20 12:07:10,556 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 0 transitions, 0 flow [2022-11-20 12:07:10,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 12:07:10,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2022-11-20 12:07:10,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2022-11-20 12:07:10,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2022-11-20 12:07:10,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2022-11-20 12:07:10,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2022-11-20 12:07:10,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2022-11-20 12:07:10,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2022-11-20 12:07:10,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2022-11-20 12:07:10,572 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2022-11-20 12:07:10,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 12:07:10,573 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1] [2022-11-20 12:07:10,580 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 12:07:10,580 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:07:10,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:07:10 BasicIcfg [2022-11-20 12:07:10,588 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:07:10,589 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:07:10,589 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:07:10,589 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:07:10,590 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:06:56" (3/4) ... [2022-11-20 12:07:10,592 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 12:07:10,599 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-20 12:07:10,605 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-20 12:07:10,606 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 12:07:10,606 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 12:07:10,658 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:07:10,658 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:07:10,659 INFO L158 Benchmark]: Toolchain (without parser) took 15914.08ms. Allocated memory was 157.3MB in the beginning and 272.6MB in the end (delta: 115.3MB). Free memory was 117.7MB in the beginning and 197.6MB in the end (delta: -79.9MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2022-11-20 12:07:10,659 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 121.6MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:07:10,659 INFO L158 Benchmark]: CACSL2BoogieTranslator took 739.91ms. Allocated memory is still 157.3MB. Free memory was 117.7MB in the beginning and 116.2MB in the end (delta: 1.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-20 12:07:10,660 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.37ms. Allocated memory is still 157.3MB. Free memory was 116.2MB in the beginning and 113.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:07:10,660 INFO L158 Benchmark]: Boogie Preprocessor took 56.61ms. Allocated memory is still 157.3MB. Free memory was 113.6MB in the beginning and 111.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:07:10,661 INFO L158 Benchmark]: RCFGBuilder took 713.90ms. Allocated memory is still 157.3MB. Free memory was 111.5MB in the beginning and 94.5MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 12:07:10,661 INFO L158 Benchmark]: TraceAbstraction took 14227.08ms. Allocated memory was 157.3MB in the beginning and 272.6MB in the end (delta: 115.3MB). Free memory was 94.0MB in the beginning and 200.8MB in the end (delta: -106.8MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2022-11-20 12:07:10,662 INFO L158 Benchmark]: Witness Printer took 69.41ms. Allocated memory is still 272.6MB. Free memory was 200.8MB in the beginning and 197.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:07:10,664 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 121.6MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 739.91ms. Allocated memory is still 157.3MB. Free memory was 117.7MB in the beginning and 116.2MB in the end (delta: 1.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.37ms. Allocated memory is still 157.3MB. Free memory was 116.2MB in the beginning and 113.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.61ms. Allocated memory is still 157.3MB. Free memory was 113.6MB in the beginning and 111.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 713.90ms. Allocated memory is still 157.3MB. Free memory was 111.5MB in the beginning and 94.5MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 14227.08ms. Allocated memory was 157.3MB in the beginning and 272.6MB in the end (delta: 115.3MB). Free memory was 94.0MB in the beginning and 200.8MB in the end (delta: -106.8MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * Witness Printer took 69.41ms. Allocated memory is still 272.6MB. Free memory was 200.8MB in the beginning and 197.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: 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, 131 locations, 9 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: 14.0s, OverallIterations: 11, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 287 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 287 mSDsluCounter, 254 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 41 mSDsCounter, 251 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1571 IncrementalHoareTripleChecker+Invalid, 1822 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 251 mSolverCounterUnsat, 213 mSDtfsCounter, 1571 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 527 GetRequests, 393 SyntacticMatches, 11 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 804 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1692occurred in iteration=10, InterpolantAutomatonStates: 98, 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: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 990 NumberOfCodeBlocks, 940 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1125 ConstructedInterpolants, 0 QuantifiedInterpolants, 2320 SizeOfPredicates, 22 NumberOfNonLiveVariables, 622 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 19 InterpolantComputations, 8 PerfectInterpolantSequences, 1070/1593 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 12:07:10,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ced0975-b750-491a-bca3-f3bdf224f1ef/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 Result: TRUE