./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/qw2004-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d94295-9ac4-4f55-8e10-156e60da50bf/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d94295-9ac4-4f55-8e10-156e60da50bf/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d94295-9ac4-4f55-8e10-156e60da50bf/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d94295-9ac4-4f55-8e10-156e60da50bf/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/qw2004-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d94295-9ac4-4f55-8e10-156e60da50bf/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d94295-9ac4-4f55-8e10-156e60da50bf/bin/uautomizer-J5u9QxTXDZ --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 a0f042164bf78d3595348b117153fa7346585efa21c060e488a9879023a64e1b --- 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-dbf71c6-m [2022-10-17 10:20:14,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:20:14,485 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:20:14,548 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:20:14,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:20:14,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:20:14,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:20:14,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:20:14,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:20:14,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:20:14,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:20:14,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:20:14,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:20:14,582 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:20:14,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:20:14,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:20:14,590 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:20:14,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:20:14,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:20:14,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:20:14,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:20:14,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:20:14,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:20:14,613 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:20:14,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:20:14,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:20:14,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:20:14,630 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:20:14,631 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:20:14,633 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:20:14,633 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:20:14,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:20:14,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:20:14,641 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:20:14,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:20:14,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:20:14,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:20:14,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:20:14,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:20:14,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:20:14,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:20:14,648 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d94295-9ac4-4f55-8e10-156e60da50bf/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-10-17 10:20:14,699 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:20:14,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:20:14,701 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:20:14,701 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:20:14,702 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:20:14,702 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:20:14,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:20:14,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:20:14,704 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:20:14,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:20:14,705 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:20:14,706 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:20:14,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:20:14,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:20:14,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:20:14,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:20:14,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:20:14,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:20:14,708 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-10-17 10:20:14,708 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:20:14,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:20:14,709 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:20:14,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:20:14,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:20:14,710 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:20:14,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:20:14,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:20:14,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:20:14,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:20:14,711 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:20:14,712 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:20:14,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:20:14,713 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:20:14,713 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:20:14,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:20:14,713 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_24d94295-9ac4-4f55-8e10-156e60da50bf/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d94295-9ac4-4f55-8e10-156e60da50bf/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0f042164bf78d3595348b117153fa7346585efa21c060e488a9879023a64e1b [2022-10-17 10:20:15,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:20:15,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:20:15,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:20:15,145 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:20:15,146 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:20:15,148 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d94295-9ac4-4f55-8e10-156e60da50bf/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/pthread-lit/qw2004-2.i [2022-10-17 10:20:15,248 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d94295-9ac4-4f55-8e10-156e60da50bf/bin/uautomizer-J5u9QxTXDZ/data/142276c14/b678a0877bed4c9b94b4717a544293ce/FLAGad0e232d5 [2022-10-17 10:20:15,855 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:20:15,855 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d94295-9ac4-4f55-8e10-156e60da50bf/sv-benchmarks/c/pthread-lit/qw2004-2.i [2022-10-17 10:20:15,889 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d94295-9ac4-4f55-8e10-156e60da50bf/bin/uautomizer-J5u9QxTXDZ/data/142276c14/b678a0877bed4c9b94b4717a544293ce/FLAGad0e232d5 [2022-10-17 10:20:16,131 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d94295-9ac4-4f55-8e10-156e60da50bf/bin/uautomizer-J5u9QxTXDZ/data/142276c14/b678a0877bed4c9b94b4717a544293ce [2022-10-17 10:20:16,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:20:16,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:20:16,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:20:16,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:20:16,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:20:16,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:20:16" (1/1) ... [2022-10-17 10:20:16,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f823c2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:16, skipping insertion in model container [2022-10-17 10:20:16,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:20:16" (1/1) ... [2022-10-17 10:20:16,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:20:16,199 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:20:16,664 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d94295-9ac4-4f55-8e10-156e60da50bf/sv-benchmarks/c/pthread-lit/qw2004-2.i[30003,30016] [2022-10-17 10:20:16,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:20:16,702 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:20:16,742 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d94295-9ac4-4f55-8e10-156e60da50bf/sv-benchmarks/c/pthread-lit/qw2004-2.i[30003,30016] [2022-10-17 10:20:16,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:20:16,796 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:20:16,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:16 WrapperNode [2022-10-17 10:20:16,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:20:16,798 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:20:16,798 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:20:16,799 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:20:16,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:16" (1/1) ... [2022-10-17 10:20:16,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:16" (1/1) ... [2022-10-17 10:20:16,860 INFO L138 Inliner]: procedures = 175, calls = 32, calls flagged for inlining = 9, calls inlined = 10, statements flattened = 172 [2022-10-17 10:20:16,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:20:16,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:20:16,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:20:16,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:20:16,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:16" (1/1) ... [2022-10-17 10:20:16,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:16" (1/1) ... [2022-10-17 10:20:16,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:16" (1/1) ... [2022-10-17 10:20:16,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:16" (1/1) ... [2022-10-17 10:20:16,887 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:16" (1/1) ... [2022-10-17 10:20:16,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:16" (1/1) ... [2022-10-17 10:20:16,892 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:16" (1/1) ... [2022-10-17 10:20:16,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:16" (1/1) ... [2022-10-17 10:20:16,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:20:16,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:20:16,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:20:16,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:20:16,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:16" (1/1) ... [2022-10-17 10:20:16,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:20:16,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d94295-9ac4-4f55-8e10-156e60da50bf/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:20:16,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d94295-9ac4-4f55-8e10-156e60da50bf/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:20:16,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d94295-9ac4-4f55-8e10-156e60da50bf/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:20:17,010 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2022-10-17 10:20:17,010 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2022-10-17 10:20:17,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:20:17,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-10-17 10:20:17,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:20:17,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:20:17,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:20:17,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:20:17,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-10-17 10:20:17,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:20:17,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:20:17,015 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-17 10:20:17,262 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:20:17,278 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:20:17,659 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:20:17,775 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:20:17,784 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:20:17,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:20:17 BoogieIcfgContainer [2022-10-17 10:20:17,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:20:17,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:20:17,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:20:17,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:20:17,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:20:16" (1/3) ... [2022-10-17 10:20:17,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@786a63a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:20:17, skipping insertion in model container [2022-10-17 10:20:17,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:16" (2/3) ... [2022-10-17 10:20:17,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@786a63a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:20:17, skipping insertion in model container [2022-10-17 10:20:17,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:20:17" (3/3) ... [2022-10-17 10:20:17,799 INFO L112 eAbstractionObserver]: Analyzing ICFG qw2004-2.i [2022-10-17 10:20:17,810 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-17 10:20:17,823 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:20:17,823 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2022-10-17 10:20:17,823 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-17 10:20:17,888 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-17 10:20:17,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 159 transitions, 323 flow [2022-10-17 10:20:18,033 INFO L130 PetriNetUnfolder]: 6/158 cut-off events. [2022-10-17 10:20:18,033 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:20:18,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 158 events. 6/158 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 206 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2022-10-17 10:20:18,040 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 159 transitions, 323 flow [2022-10-17 10:20:18,048 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 158 transitions, 319 flow [2022-10-17 10:20:18,069 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:20:18,076 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;@29cdf701, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:20:18,077 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-10-17 10:20:18,085 INFO L130 PetriNetUnfolder]: 0/20 cut-off events. [2022-10-17 10:20:18,085 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:20:18,085 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:20:18,086 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:20:18,087 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-10-17 10:20:18,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:18,093 INFO L85 PathProgramCache]: Analyzing trace with hash 340496940, now seen corresponding path program 1 times [2022-10-17 10:20:18,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:18,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081360286] [2022-10-17 10:20:18,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:18,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:18,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:18,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:20:18,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:20:18,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081360286] [2022-10-17 10:20:18,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081360286] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:20:18,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:20:18,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:20:18,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544663142] [2022-10-17 10:20:18,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:20:18,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:20:18,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:20:18,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:20:18,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:20:18,447 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 159 [2022-10-17 10:20:18,461 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 158 transitions, 319 flow. Second operand has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 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) [2022-10-17 10:20:18,471 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:20:18,472 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 159 [2022-10-17 10:20:18,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:20:18,733 INFO L130 PetriNetUnfolder]: 30/378 cut-off events. [2022-10-17 10:20:18,734 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-10-17 10:20:18,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 378 events. 30/378 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1541 event pairs, 14 based on Foata normal form. 10/350 useless extension candidates. Maximal degree in co-relation 383. Up to 54 conditions per place. [2022-10-17 10:20:18,746 INFO L137 encePairwiseOnDemand]: 141/159 looper letters, 13 selfloop transitions, 2 changer transitions 0/141 dead transitions. [2022-10-17 10:20:18,747 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 141 transitions, 315 flow [2022-10-17 10:20:18,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:20:18,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:20:18,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 412 transitions. [2022-10-17 10:20:18,775 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8637316561844863 [2022-10-17 10:20:18,776 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 412 transitions. [2022-10-17 10:20:18,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 412 transitions. [2022-10-17 10:20:18,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:20:18,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 412 transitions. [2022-10-17 10:20:18,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 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) [2022-10-17 10:20:18,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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) [2022-10-17 10:20:18,805 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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) [2022-10-17 10:20:18,807 INFO L175 Difference]: Start difference. First operand has 156 places, 158 transitions, 319 flow. Second operand 3 states and 412 transitions. [2022-10-17 10:20:18,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 141 transitions, 315 flow [2022-10-17 10:20:18,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 141 transitions, 314 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-10-17 10:20:18,827 INFO L231 Difference]: Finished difference. Result has 142 places, 141 transitions, 288 flow [2022-10-17 10:20:18,829 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=288, PETRI_PLACES=142, PETRI_TRANSITIONS=141} [2022-10-17 10:20:18,836 INFO L287 CegarLoopForPetriNet]: 156 programPoint places, -14 predicate places. [2022-10-17 10:20:18,836 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 141 transitions, 288 flow [2022-10-17 10:20:18,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 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) [2022-10-17 10:20:18,837 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:20:18,837 INFO L208 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] [2022-10-17 10:20:18,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:20:18,839 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-10-17 10:20:18,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:18,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1742999048, now seen corresponding path program 1 times [2022-10-17 10:20:18,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:18,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216749532] [2022-10-17 10:20:18,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:18,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:18,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:20:18,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:20:18,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216749532] [2022-10-17 10:20:18,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216749532] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:20:18,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:20:18,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:20:18,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926077624] [2022-10-17 10:20:18,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:20:18,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:20:18,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:20:18,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:20:18,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:20:18,970 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 159 [2022-10-17 10:20:18,971 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 141 transitions, 288 flow. Second operand has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 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) [2022-10-17 10:20:18,972 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:20:18,972 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 159 [2022-10-17 10:20:18,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:20:19,073 INFO L130 PetriNetUnfolder]: 30/377 cut-off events. [2022-10-17 10:20:19,074 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:20:19,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 377 events. 30/377 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1522 event pairs, 14 based on Foata normal form. 0/340 useless extension candidates. Maximal degree in co-relation 411. Up to 54 conditions per place. [2022-10-17 10:20:19,078 INFO L137 encePairwiseOnDemand]: 156/159 looper letters, 13 selfloop transitions, 2 changer transitions 0/140 dead transitions. [2022-10-17 10:20:19,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 140 transitions, 316 flow [2022-10-17 10:20:19,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:20:19,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:20:19,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2022-10-17 10:20:19,081 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8322851153039832 [2022-10-17 10:20:19,081 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2022-10-17 10:20:19,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2022-10-17 10:20:19,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:20:19,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2022-10-17 10:20:19,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 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) [2022-10-17 10:20:19,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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) [2022-10-17 10:20:19,087 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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) [2022-10-17 10:20:19,088 INFO L175 Difference]: Start difference. First operand has 142 places, 141 transitions, 288 flow. Second operand 3 states and 397 transitions. [2022-10-17 10:20:19,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 140 transitions, 316 flow [2022-10-17 10:20:19,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 140 transitions, 312 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-10-17 10:20:19,095 INFO L231 Difference]: Finished difference. Result has 141 places, 140 transitions, 286 flow [2022-10-17 10:20:19,096 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=286, PETRI_PLACES=141, PETRI_TRANSITIONS=140} [2022-10-17 10:20:19,097 INFO L287 CegarLoopForPetriNet]: 156 programPoint places, -15 predicate places. [2022-10-17 10:20:19,097 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 140 transitions, 286 flow [2022-10-17 10:20:19,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 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) [2022-10-17 10:20:19,098 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:20:19,098 INFO L208 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] [2022-10-17 10:20:19,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:20:19,099 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-10-17 10:20:19,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:19,100 INFO L85 PathProgramCache]: Analyzing trace with hash -260477463, now seen corresponding path program 1 times [2022-10-17 10:20:19,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:19,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696987609] [2022-10-17 10:20:19,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:19,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:19,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:19,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:20:19,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:20:19,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696987609] [2022-10-17 10:20:19,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696987609] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:20:19,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:20:19,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:20:19,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375165815] [2022-10-17 10:20:19,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:20:19,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:20:19,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:20:19,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:20:19,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:20:19,175 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 159 [2022-10-17 10:20:19,176 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 140 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 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) [2022-10-17 10:20:19,177 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:20:19,177 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 159 [2022-10-17 10:20:19,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:20:19,329 INFO L130 PetriNetUnfolder]: 30/376 cut-off events. [2022-10-17 10:20:19,330 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:20:19,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 376 events. 30/376 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1536 event pairs, 14 based on Foata normal form. 0/340 useless extension candidates. Maximal degree in co-relation 405. Up to 54 conditions per place. [2022-10-17 10:20:19,334 INFO L137 encePairwiseOnDemand]: 156/159 looper letters, 13 selfloop transitions, 2 changer transitions 0/139 dead transitions. [2022-10-17 10:20:19,334 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 139 transitions, 314 flow [2022-10-17 10:20:19,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:20:19,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:20:19,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2022-10-17 10:20:19,338 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8322851153039832 [2022-10-17 10:20:19,338 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2022-10-17 10:20:19,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2022-10-17 10:20:19,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:20:19,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2022-10-17 10:20:19,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 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) [2022-10-17 10:20:19,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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) [2022-10-17 10:20:19,346 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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) [2022-10-17 10:20:19,346 INFO L175 Difference]: Start difference. First operand has 141 places, 140 transitions, 286 flow. Second operand 3 states and 397 transitions. [2022-10-17 10:20:19,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 139 transitions, 314 flow [2022-10-17 10:20:19,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 139 transitions, 310 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-10-17 10:20:19,354 INFO L231 Difference]: Finished difference. Result has 140 places, 139 transitions, 284 flow [2022-10-17 10:20:19,355 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=140, PETRI_TRANSITIONS=139} [2022-10-17 10:20:19,358 INFO L287 CegarLoopForPetriNet]: 156 programPoint places, -16 predicate places. [2022-10-17 10:20:19,358 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 139 transitions, 284 flow [2022-10-17 10:20:19,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 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) [2022-10-17 10:20:19,359 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:20:19,360 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:20:19,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:20:19,360 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-10-17 10:20:19,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:19,361 INFO L85 PathProgramCache]: Analyzing trace with hash 459629893, now seen corresponding path program 1 times [2022-10-17 10:20:19,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:19,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501107351] [2022-10-17 10:20:19,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:19,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:19,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:20:19,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:20:19,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501107351] [2022-10-17 10:20:19,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501107351] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:20:19,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:20:19,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:20:19,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362175853] [2022-10-17 10:20:19,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:20:19,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:20:19,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:20:19,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:20:19,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:20:19,502 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 159 [2022-10-17 10:20:19,503 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 139 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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) [2022-10-17 10:20:19,504 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:20:19,504 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 159 [2022-10-17 10:20:19,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:20:19,712 INFO L130 PetriNetUnfolder]: 77/530 cut-off events. [2022-10-17 10:20:19,713 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:20:19,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 679 conditions, 530 events. 77/530 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2558 event pairs, 47 based on Foata normal form. 0/469 useless extension candidates. Maximal degree in co-relation 641. Up to 141 conditions per place. [2022-10-17 10:20:19,718 INFO L137 encePairwiseOnDemand]: 156/159 looper letters, 19 selfloop transitions, 2 changer transitions 0/138 dead transitions. [2022-10-17 10:20:19,718 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 138 transitions, 324 flow [2022-10-17 10:20:19,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:20:19,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:20:19,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 385 transitions. [2022-10-17 10:20:19,721 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8071278825995807 [2022-10-17 10:20:19,721 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 385 transitions. [2022-10-17 10:20:19,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 385 transitions. [2022-10-17 10:20:19,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:20:19,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 385 transitions. [2022-10-17 10:20:19,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 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) [2022-10-17 10:20:19,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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) [2022-10-17 10:20:19,732 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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) [2022-10-17 10:20:19,732 INFO L175 Difference]: Start difference. First operand has 140 places, 139 transitions, 284 flow. Second operand 3 states and 385 transitions. [2022-10-17 10:20:19,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 138 transitions, 324 flow [2022-10-17 10:20:19,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 138 transitions, 320 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-10-17 10:20:19,739 INFO L231 Difference]: Finished difference. Result has 139 places, 138 transitions, 282 flow [2022-10-17 10:20:19,740 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=139, PETRI_TRANSITIONS=138} [2022-10-17 10:20:19,741 INFO L287 CegarLoopForPetriNet]: 156 programPoint places, -17 predicate places. [2022-10-17 10:20:19,742 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 138 transitions, 282 flow [2022-10-17 10:20:19,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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) [2022-10-17 10:20:19,749 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:20:19,750 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:20:19,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:20:19,751 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-10-17 10:20:19,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:19,752 INFO L85 PathProgramCache]: Analyzing trace with hash 782364043, now seen corresponding path program 1 times [2022-10-17 10:20:19,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:19,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690913510] [2022-10-17 10:20:19,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:19,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:20,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:20:20,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:20:20,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690913510] [2022-10-17 10:20:20,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690913510] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:20:20,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:20:20,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:20:20,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579381692] [2022-10-17 10:20:20,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:20:20,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:20:20,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:20:20,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:20:20,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:20:20,013 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 159 [2022-10-17 10:20:20,015 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 138 transitions, 282 flow. Second operand has 4 states, 4 states have (on average 129.5) internal successors, (518), 4 states have internal predecessors, (518), 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) [2022-10-17 10:20:20,015 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:20:20,015 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 159 [2022-10-17 10:20:20,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:20:20,214 INFO L130 PetriNetUnfolder]: 58/616 cut-off events. [2022-10-17 10:20:20,214 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:20:20,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 718 conditions, 616 events. 58/616 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3364 event pairs, 10 based on Foata normal form. 0/557 useless extension candidates. Maximal degree in co-relation 674. Up to 47 conditions per place. [2022-10-17 10:20:20,220 INFO L137 encePairwiseOnDemand]: 154/159 looper letters, 24 selfloop transitions, 5 changer transitions 0/152 dead transitions. [2022-10-17 10:20:20,220 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 152 transitions, 368 flow [2022-10-17 10:20:20,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:20:20,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-10-17 10:20:20,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 671 transitions. [2022-10-17 10:20:20,224 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8440251572327044 [2022-10-17 10:20:20,225 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 671 transitions. [2022-10-17 10:20:20,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 671 transitions. [2022-10-17 10:20:20,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:20:20,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 671 transitions. [2022-10-17 10:20:20,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 134.2) internal successors, (671), 5 states have internal predecessors, (671), 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) [2022-10-17 10:20:20,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 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) [2022-10-17 10:20:20,235 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 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) [2022-10-17 10:20:20,235 INFO L175 Difference]: Start difference. First operand has 139 places, 138 transitions, 282 flow. Second operand 5 states and 671 transitions. [2022-10-17 10:20:20,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 152 transitions, 368 flow [2022-10-17 10:20:20,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 152 transitions, 364 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-10-17 10:20:20,243 INFO L231 Difference]: Finished difference. Result has 145 places, 141 transitions, 312 flow [2022-10-17 10:20:20,243 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=312, PETRI_PLACES=145, PETRI_TRANSITIONS=141} [2022-10-17 10:20:20,246 INFO L287 CegarLoopForPetriNet]: 156 programPoint places, -11 predicate places. [2022-10-17 10:20:20,247 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 141 transitions, 312 flow [2022-10-17 10:20:20,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 129.5) internal successors, (518), 4 states have internal predecessors, (518), 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) [2022-10-17 10:20:20,248 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:20:20,248 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:20:20,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 10:20:20,249 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-10-17 10:20:20,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:20,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1401429427, now seen corresponding path program 1 times [2022-10-17 10:20:20,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:20,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913176816] [2022-10-17 10:20:20,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:20,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:20,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:20,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:20:20,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:20:20,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913176816] [2022-10-17 10:20:20,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913176816] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:20:20,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:20:20,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:20:20,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238518251] [2022-10-17 10:20:20,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:20:20,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:20:20,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:20:20,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:20:20,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:20:20,341 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 159 [2022-10-17 10:20:20,342 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 141 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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) [2022-10-17 10:20:20,342 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:20:20,342 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 159 [2022-10-17 10:20:20,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:20:20,625 INFO L130 PetriNetUnfolder]: 125/1188 cut-off events. [2022-10-17 10:20:20,625 INFO L131 PetriNetUnfolder]: For 34/37 co-relation queries the response was YES. [2022-10-17 10:20:20,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1476 conditions, 1188 events. 125/1188 cut-off events. For 34/37 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 8296 event pairs, 37 based on Foata normal form. 0/1093 useless extension candidates. Maximal degree in co-relation 1422. Up to 145 conditions per place. [2022-10-17 10:20:20,635 INFO L137 encePairwiseOnDemand]: 155/159 looper letters, 26 selfloop transitions, 3 changer transitions 1/151 dead transitions. [2022-10-17 10:20:20,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 151 transitions, 396 flow [2022-10-17 10:20:20,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:20:20,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:20:20,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 401 transitions. [2022-10-17 10:20:20,638 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8406708595387841 [2022-10-17 10:20:20,638 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 401 transitions. [2022-10-17 10:20:20,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 401 transitions. [2022-10-17 10:20:20,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:20:20,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 401 transitions. [2022-10-17 10:20:20,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.66666666666666) internal successors, (401), 3 states have internal predecessors, (401), 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) [2022-10-17 10:20:20,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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) [2022-10-17 10:20:20,644 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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) [2022-10-17 10:20:20,644 INFO L175 Difference]: Start difference. First operand has 145 places, 141 transitions, 312 flow. Second operand 3 states and 401 transitions. [2022-10-17 10:20:20,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 151 transitions, 396 flow [2022-10-17 10:20:20,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 151 transitions, 396 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-10-17 10:20:20,650 INFO L231 Difference]: Finished difference. Result has 149 places, 143 transitions, 334 flow [2022-10-17 10:20:20,651 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=149, PETRI_TRANSITIONS=143} [2022-10-17 10:20:20,654 INFO L287 CegarLoopForPetriNet]: 156 programPoint places, -7 predicate places. [2022-10-17 10:20:20,655 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 143 transitions, 334 flow [2022-10-17 10:20:20,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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) [2022-10-17 10:20:20,656 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:20:20,656 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:20:20,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 10:20:20,657 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-10-17 10:20:20,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:20,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1363842661, now seen corresponding path program 1 times [2022-10-17 10:20:20,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:20,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895127522] [2022-10-17 10:20:20,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:20,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:20,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:20:20,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:20:20,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895127522] [2022-10-17 10:20:20,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895127522] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:20:20,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:20:20,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:20:20,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139033635] [2022-10-17 10:20:20,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:20:20,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:20:20,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:20:20,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:20:20,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:20:20,912 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 159 [2022-10-17 10:20:20,913 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 143 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 127.66666666666667) internal successors, (766), 6 states have internal predecessors, (766), 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) [2022-10-17 10:20:20,913 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:20:20,913 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 159 [2022-10-17 10:20:20,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:20:21,347 INFO L130 PetriNetUnfolder]: 171/1344 cut-off events. [2022-10-17 10:20:21,348 INFO L131 PetriNetUnfolder]: For 56/59 co-relation queries the response was YES. [2022-10-17 10:20:21,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1801 conditions, 1344 events. 171/1344 cut-off events. For 56/59 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 10954 event pairs, 8 based on Foata normal form. 0/1265 useless extension candidates. Maximal degree in co-relation 1745. Up to 175 conditions per place. [2022-10-17 10:20:21,358 INFO L137 encePairwiseOnDemand]: 151/159 looper letters, 23 selfloop transitions, 3 changer transitions 30/180 dead transitions. [2022-10-17 10:20:21,358 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 180 transitions, 534 flow [2022-10-17 10:20:21,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-17 10:20:21,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-10-17 10:20:21,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1316 transitions. [2022-10-17 10:20:21,364 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8276729559748428 [2022-10-17 10:20:21,365 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1316 transitions. [2022-10-17 10:20:21,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1316 transitions. [2022-10-17 10:20:21,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:20:21,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1316 transitions. [2022-10-17 10:20:21,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 131.6) internal successors, (1316), 10 states have internal predecessors, (1316), 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) [2022-10-17 10:20:21,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 159.0) internal successors, (1749), 11 states have internal predecessors, (1749), 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) [2022-10-17 10:20:21,377 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 159.0) internal successors, (1749), 11 states have internal predecessors, (1749), 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) [2022-10-17 10:20:21,378 INFO L175 Difference]: Start difference. First operand has 149 places, 143 transitions, 334 flow. Second operand 10 states and 1316 transitions. [2022-10-17 10:20:21,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 180 transitions, 534 flow [2022-10-17 10:20:21,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 180 transitions, 528 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-10-17 10:20:21,388 INFO L231 Difference]: Finished difference. Result has 163 places, 144 transitions, 363 flow [2022-10-17 10:20:21,388 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=363, PETRI_PLACES=163, PETRI_TRANSITIONS=144} [2022-10-17 10:20:21,389 INFO L287 CegarLoopForPetriNet]: 156 programPoint places, 7 predicate places. [2022-10-17 10:20:21,389 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 144 transitions, 363 flow [2022-10-17 10:20:21,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 127.66666666666667) internal successors, (766), 6 states have internal predecessors, (766), 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) [2022-10-17 10:20:21,390 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:20:21,390 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:20:21,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-17 10:20:21,391 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-10-17 10:20:21,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:21,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1436236176, now seen corresponding path program 1 times [2022-10-17 10:20:21,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:21,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619220615] [2022-10-17 10:20:21,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:21,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:21,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:21,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:20:21,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:20:21,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619220615] [2022-10-17 10:20:21,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619220615] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:20:21,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:20:21,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:20:21,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817831187] [2022-10-17 10:20:21,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:20:21,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:20:21,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:20:21,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:20:21,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:20:21,496 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 159 [2022-10-17 10:20:21,497 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 144 transitions, 363 flow. Second operand has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 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) [2022-10-17 10:20:21,497 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:20:21,498 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 159 [2022-10-17 10:20:21,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:20:21,821 INFO L130 PetriNetUnfolder]: 171/1531 cut-off events. [2022-10-17 10:20:21,822 INFO L131 PetriNetUnfolder]: For 546/562 co-relation queries the response was YES. [2022-10-17 10:20:21,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2287 conditions, 1531 events. 171/1531 cut-off events. For 546/562 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 11827 event pairs, 64 based on Foata normal form. 0/1424 useless extension candidates. Maximal degree in co-relation 2223. Up to 260 conditions per place. [2022-10-17 10:20:21,833 INFO L137 encePairwiseOnDemand]: 154/159 looper letters, 24 selfloop transitions, 4 changer transitions 9/155 dead transitions. [2022-10-17 10:20:21,833 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 155 transitions, 477 flow [2022-10-17 10:20:21,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:20:21,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:20:21,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2022-10-17 10:20:21,836 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8322851153039832 [2022-10-17 10:20:21,836 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2022-10-17 10:20:21,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2022-10-17 10:20:21,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:20:21,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2022-10-17 10:20:21,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 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) [2022-10-17 10:20:21,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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) [2022-10-17 10:20:21,841 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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) [2022-10-17 10:20:21,841 INFO L175 Difference]: Start difference. First operand has 163 places, 144 transitions, 363 flow. Second operand 3 states and 397 transitions. [2022-10-17 10:20:21,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 155 transitions, 477 flow [2022-10-17 10:20:21,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 155 transitions, 468 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-10-17 10:20:21,851 INFO L231 Difference]: Finished difference. Result has 155 places, 142 transitions, 368 flow [2022-10-17 10:20:21,852 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=368, PETRI_PLACES=155, PETRI_TRANSITIONS=142} [2022-10-17 10:20:21,853 INFO L287 CegarLoopForPetriNet]: 156 programPoint places, -1 predicate places. [2022-10-17 10:20:21,853 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 142 transitions, 368 flow [2022-10-17 10:20:21,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 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) [2022-10-17 10:20:21,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:20:21,854 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:20:21,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-17 10:20:21,855 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-10-17 10:20:21,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:21,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1239839679, now seen corresponding path program 1 times [2022-10-17 10:20:21,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:21,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162330501] [2022-10-17 10:20:21,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:21,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:21,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:21,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:20:21,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:20:21,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162330501] [2022-10-17 10:20:21,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162330501] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:20:21,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:20:21,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:20:21,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528768415] [2022-10-17 10:20:21,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:20:21,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:20:21,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:20:21,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:20:21,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:20:21,977 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 159 [2022-10-17 10:20:21,978 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 142 transitions, 368 flow. Second operand has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 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) [2022-10-17 10:20:21,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:20:21,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 159 [2022-10-17 10:20:21,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:20:22,380 INFO L130 PetriNetUnfolder]: 100/997 cut-off events. [2022-10-17 10:20:22,380 INFO L131 PetriNetUnfolder]: For 320/333 co-relation queries the response was YES. [2022-10-17 10:20:22,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1513 conditions, 997 events. 100/997 cut-off events. For 320/333 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6412 event pairs, 55 based on Foata normal form. 0/943 useless extension candidates. Maximal degree in co-relation 1453. Up to 164 conditions per place. [2022-10-17 10:20:22,387 INFO L137 encePairwiseOnDemand]: 154/159 looper letters, 21 selfloop transitions, 0 changer transitions 21/161 dead transitions. [2022-10-17 10:20:22,388 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 161 transitions, 514 flow [2022-10-17 10:20:22,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:20:22,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:20:22,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 773 transitions. [2022-10-17 10:20:22,392 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.810272536687631 [2022-10-17 10:20:22,392 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 773 transitions. [2022-10-17 10:20:22,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 773 transitions. [2022-10-17 10:20:22,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:20:22,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 773 transitions. [2022-10-17 10:20:22,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 128.83333333333334) internal successors, (773), 6 states have internal predecessors, (773), 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) [2022-10-17 10:20:22,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 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) [2022-10-17 10:20:22,401 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 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) [2022-10-17 10:20:22,401 INFO L175 Difference]: Start difference. First operand has 155 places, 142 transitions, 368 flow. Second operand 6 states and 773 transitions. [2022-10-17 10:20:22,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 161 transitions, 514 flow [2022-10-17 10:20:22,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 161 transitions, 500 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-10-17 10:20:22,411 INFO L231 Difference]: Finished difference. Result has 161 places, 140 transitions, 362 flow [2022-10-17 10:20:22,412 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=362, PETRI_PLACES=161, PETRI_TRANSITIONS=140} [2022-10-17 10:20:22,413 INFO L287 CegarLoopForPetriNet]: 156 programPoint places, 5 predicate places. [2022-10-17 10:20:22,413 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 140 transitions, 362 flow [2022-10-17 10:20:22,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 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) [2022-10-17 10:20:22,414 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:20:22,415 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:20:22,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-17 10:20:22,415 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-10-17 10:20:22,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:22,416 INFO L85 PathProgramCache]: Analyzing trace with hash 80110187, now seen corresponding path program 1 times [2022-10-17 10:20:22,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:22,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351331345] [2022-10-17 10:20:22,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:22,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:22,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:22,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:20:22,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:20:22,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351331345] [2022-10-17 10:20:22,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351331345] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:20:22,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:20:22,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:20:22,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504872093] [2022-10-17 10:20:22,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:20:22,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:20:22,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:20:22,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:20:22,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:20:22,552 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 159 [2022-10-17 10:20:22,553 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 140 transitions, 362 flow. Second operand has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2022-10-17 10:20:22,554 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:20:22,554 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 159 [2022-10-17 10:20:22,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:20:22,699 INFO L130 PetriNetUnfolder]: 33/555 cut-off events. [2022-10-17 10:20:22,700 INFO L131 PetriNetUnfolder]: For 131/134 co-relation queries the response was YES. [2022-10-17 10:20:22,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 821 conditions, 555 events. 33/555 cut-off events. For 131/134 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2539 event pairs, 10 based on Foata normal form. 4/537 useless extension candidates. Maximal degree in co-relation 804. Up to 60 conditions per place. [2022-10-17 10:20:22,704 INFO L137 encePairwiseOnDemand]: 156/159 looper letters, 16 selfloop transitions, 1 changer transitions 8/147 dead transitions. [2022-10-17 10:20:22,704 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 147 transitions, 427 flow [2022-10-17 10:20:22,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:20:22,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-10-17 10:20:22,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 537 transitions. [2022-10-17 10:20:22,707 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8443396226415094 [2022-10-17 10:20:22,707 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 537 transitions. [2022-10-17 10:20:22,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 537 transitions. [2022-10-17 10:20:22,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:20:22,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 537 transitions. [2022-10-17 10:20:22,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 134.25) internal successors, (537), 4 states have internal predecessors, (537), 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) [2022-10-17 10:20:22,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 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) [2022-10-17 10:20:22,713 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 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) [2022-10-17 10:20:22,713 INFO L175 Difference]: Start difference. First operand has 161 places, 140 transitions, 362 flow. Second operand 4 states and 537 transitions. [2022-10-17 10:20:22,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 147 transitions, 427 flow [2022-10-17 10:20:22,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 147 transitions, 417 flow, removed 4 selfloop flow, removed 5 redundant places. [2022-10-17 10:20:22,721 INFO L231 Difference]: Finished difference. Result has 155 places, 136 transitions, 333 flow [2022-10-17 10:20:22,722 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=333, PETRI_PLACES=155, PETRI_TRANSITIONS=136} [2022-10-17 10:20:22,723 INFO L287 CegarLoopForPetriNet]: 156 programPoint places, -1 predicate places. [2022-10-17 10:20:22,723 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 136 transitions, 333 flow [2022-10-17 10:20:22,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2022-10-17 10:20:22,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:20:22,724 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:20:22,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-17 10:20:22,725 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-10-17 10:20:22,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:22,726 INFO L85 PathProgramCache]: Analyzing trace with hash 8224897, now seen corresponding path program 2 times [2022-10-17 10:20:22,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:22,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305300085] [2022-10-17 10:20:22,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:22,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:23,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:20:23,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:20:23,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305300085] [2022-10-17 10:20:23,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305300085] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:20:23,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:20:23,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-17 10:20:23,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922630145] [2022-10-17 10:20:23,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:20:23,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:20:23,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:20:23,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:20:23,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:20:23,030 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 159 [2022-10-17 10:20:23,035 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 136 transitions, 333 flow. Second operand has 9 states, 9 states have (on average 121.33333333333333) internal successors, (1092), 9 states have internal predecessors, (1092), 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) [2022-10-17 10:20:23,035 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:20:23,035 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 159 [2022-10-17 10:20:23,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:20:23,567 INFO L130 PetriNetUnfolder]: 81/1291 cut-off events. [2022-10-17 10:20:23,567 INFO L131 PetriNetUnfolder]: For 229/244 co-relation queries the response was YES. [2022-10-17 10:20:23,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1753 conditions, 1291 events. 81/1291 cut-off events. For 229/244 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 9388 event pairs, 32 based on Foata normal form. 1/1233 useless extension candidates. Maximal degree in co-relation 1740. Up to 74 conditions per place. [2022-10-17 10:20:23,576 INFO L137 encePairwiseOnDemand]: 148/159 looper letters, 43 selfloop transitions, 6 changer transitions 32/193 dead transitions. [2022-10-17 10:20:23,577 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 193 transitions, 641 flow [2022-10-17 10:20:23,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-17 10:20:23,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-10-17 10:20:23,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1748 transitions. [2022-10-17 10:20:23,585 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7852650494159928 [2022-10-17 10:20:23,585 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1748 transitions. [2022-10-17 10:20:23,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1748 transitions. [2022-10-17 10:20:23,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:20:23,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1748 transitions. [2022-10-17 10:20:23,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 124.85714285714286) internal successors, (1748), 14 states have internal predecessors, (1748), 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) [2022-10-17 10:20:23,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 159.0) internal successors, (2385), 15 states have internal predecessors, (2385), 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) [2022-10-17 10:20:23,602 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 159.0) internal successors, (2385), 15 states have internal predecessors, (2385), 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) [2022-10-17 10:20:23,603 INFO L175 Difference]: Start difference. First operand has 155 places, 136 transitions, 333 flow. Second operand 14 states and 1748 transitions. [2022-10-17 10:20:23,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 193 transitions, 641 flow [2022-10-17 10:20:23,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 193 transitions, 621 flow, removed 1 selfloop flow, removed 6 redundant places. [2022-10-17 10:20:23,611 INFO L231 Difference]: Finished difference. Result has 171 places, 139 transitions, 372 flow [2022-10-17 10:20:23,611 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=372, PETRI_PLACES=171, PETRI_TRANSITIONS=139} [2022-10-17 10:20:23,612 INFO L287 CegarLoopForPetriNet]: 156 programPoint places, 15 predicate places. [2022-10-17 10:20:23,612 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 139 transitions, 372 flow [2022-10-17 10:20:23,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.33333333333333) internal successors, (1092), 9 states have internal predecessors, (1092), 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) [2022-10-17 10:20:23,614 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:20:23,614 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:20:23,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-17 10:20:23,614 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-10-17 10:20:23,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:23,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1829365635, now seen corresponding path program 3 times [2022-10-17 10:20:23,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:23,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885446062] [2022-10-17 10:20:23,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:23,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:20:23,644 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:20:23,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:20:23,707 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:20:23,708 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 10:20:23,709 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (26 of 27 remaining) [2022-10-17 10:20:23,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (25 of 27 remaining) [2022-10-17 10:20:23,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (24 of 27 remaining) [2022-10-17 10:20:23,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (23 of 27 remaining) [2022-10-17 10:20:23,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (22 of 27 remaining) [2022-10-17 10:20:23,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2022-10-17 10:20:23,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (20 of 27 remaining) [2022-10-17 10:20:23,715 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2022-10-17 10:20:23,715 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2022-10-17 10:20:23,715 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2022-10-17 10:20:23,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2022-10-17 10:20:23,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2022-10-17 10:20:23,722 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 27 remaining) [2022-10-17 10:20:23,723 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 27 remaining) [2022-10-17 10:20:23,723 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 27 remaining) [2022-10-17 10:20:23,723 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (11 of 27 remaining) [2022-10-17 10:20:23,723 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (10 of 27 remaining) [2022-10-17 10:20:23,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (9 of 27 remaining) [2022-10-17 10:20:23,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2022-10-17 10:20:23,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 27 remaining) [2022-10-17 10:20:23,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (6 of 27 remaining) [2022-10-17 10:20:23,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2022-10-17 10:20:23,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2022-10-17 10:20:23,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2022-10-17 10:20:23,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2022-10-17 10:20:23,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2022-10-17 10:20:23,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2022-10-17 10:20:23,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-17 10:20:23,727 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:20:23,736 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-10-17 10:20:23,736 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 10:20:23,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 10:20:23 BasicIcfg [2022-10-17 10:20:23,866 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 10:20:23,867 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:20:23,867 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:20:23,868 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:20:23,872 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:20:17" (3/4) ... [2022-10-17 10:20:23,875 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-10-17 10:20:23,875 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:20:23,875 INFO L158 Benchmark]: Toolchain (without parser) took 7739.91ms. Allocated memory was 104.9MB in the beginning and 195.0MB in the end (delta: 90.2MB). Free memory was 65.9MB in the beginning and 55.6MB in the end (delta: 10.3MB). Peak memory consumption was 100.9MB. Max. memory is 16.1GB. [2022-10-17 10:20:23,876 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 104.9MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:20:23,876 INFO L158 Benchmark]: CACSL2BoogieTranslator took 660.09ms. Allocated memory is still 104.9MB. Free memory was 65.7MB in the beginning and 67.0MB in the end (delta: -1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:20:23,877 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.36ms. Allocated memory is still 104.9MB. Free memory was 67.0MB in the beginning and 64.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:20:23,877 INFO L158 Benchmark]: Boogie Preprocessor took 36.88ms. Allocated memory is still 104.9MB. Free memory was 64.6MB in the beginning and 63.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:20:23,877 INFO L158 Benchmark]: RCFGBuilder took 888.36ms. Allocated memory was 104.9MB in the beginning and 134.2MB in the end (delta: 29.4MB). Free memory was 63.1MB in the beginning and 103.8MB in the end (delta: -40.7MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2022-10-17 10:20:23,878 INFO L158 Benchmark]: TraceAbstraction took 6074.93ms. Allocated memory was 134.2MB in the beginning and 195.0MB in the end (delta: 60.8MB). Free memory was 103.5MB in the beginning and 55.6MB in the end (delta: 47.9MB). Peak memory consumption was 109.7MB. Max. memory is 16.1GB. [2022-10-17 10:20:23,878 INFO L158 Benchmark]: Witness Printer took 7.62ms. Allocated memory is still 195.0MB. Free memory is still 55.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:20:23,881 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 104.9MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 660.09ms. Allocated memory is still 104.9MB. Free memory was 65.7MB in the beginning and 67.0MB in the end (delta: -1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.36ms. Allocated memory is still 104.9MB. Free memory was 67.0MB in the beginning and 64.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.88ms. Allocated memory is still 104.9MB. Free memory was 64.6MB in the beginning and 63.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 888.36ms. Allocated memory was 104.9MB in the beginning and 134.2MB in the end (delta: 29.4MB). Free memory was 63.1MB in the beginning and 103.8MB in the end (delta: -40.7MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6074.93ms. Allocated memory was 134.2MB in the beginning and 195.0MB in the end (delta: 60.8MB). Free memory was 103.5MB in the beginning and 55.6MB in the end (delta: 47.9MB). Peak memory consumption was 109.7MB. Max. memory is 16.1GB. * Witness Printer took 7.62ms. Allocated memory is still 195.0MB. Free memory is still 55.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 737]: Data race detected Data race detected The following path leads to a data race: [L697] 0 volatile int stoppingFlag; VAL [stoppingFlag=0] [L698] 0 volatile int pendingIo; VAL [pendingIo=0, stoppingFlag=0] [L699] 0 volatile int stoppingEvent; VAL [pendingIo=0, stoppingEvent=0, stoppingFlag=0] [L700] 0 volatile int stopped; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=0] [L755] 0 pthread_t t; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L756] 0 pendingIo = 1 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L757] 0 stoppingFlag = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L758] 0 stoppingEvent = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L759] 0 stopped = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L760] FCALL, FORK 0 pthread_create(&t, 0, BCSP_PnpStop, 0) VAL [pendingIo=1, pthread_create(&t, 0, BCSP_PnpStop, 0)=-1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L761] CALL 0 BCSP_PnpAdd(0) [L734] 0 int status; VAL [arg={0:0}, arg={0:0}, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L735] CALL, EXPR 0 BCSP_IoIncrement() [L703] 0 int lsf = stoppingFlag; VAL [lsf=0, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L744] 1 stoppingFlag = 1 VAL [arg={0:0}, arg={0:0}, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L746] CALL 1 BCSP_IoDecrement() [L725] 1 int pending; VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L726] CALL, EXPR 1 dec() [L705] COND FALSE 0 !(\read(lsf)) VAL [lsf=0, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L709] 0 int lp = pendingIo; VAL [lp=1, lsf=0, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L719] 1 pendingIo-- [L720] 1 int tmp = pendingIo; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1, tmp=0] [L722] 1 return tmp; VAL [\result=0, pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1, tmp=0] [L726] RET, EXPR 1 dec() [L726] 1 pending = dec() VAL [dec()=0, pending=0, pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1] [L727] COND TRUE 1 pending == 0 VAL [pending=0, pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1] [L729] 1 stoppingEvent = 1 VAL [pending=0, pendingIo=0, stopped=0, stoppingEvent=1, stoppingFlag=1] [L746] RET 1 BCSP_IoDecrement() [L748] 1 int lse = stoppingEvent; VAL [arg={0:0}, arg={0:0}, lse=1, pendingIo=0, stopped=0, stoppingEvent=1, stoppingFlag=1] [L712] 0 pendingIo = lp + 1 VAL [lp=1, lsf=0, pendingIo=2, stopped=0, stoppingEvent=1, stoppingFlag=1] [L715] 0 return 0; VAL [\result=0, lp=1, lsf=0, pendingIo=2, stopped=0, stoppingEvent=1, stoppingFlag=1] [L735] RET, EXPR 0 BCSP_IoIncrement() [L735] 0 status = BCSP_IoIncrement() VAL [arg={0:0}, arg={0:0}, BCSP_IoIncrement()=0, pendingIo=2, status=0, stopped=0, stoppingEvent=1, stoppingFlag=1] [L736] COND TRUE 0 status == 0 VAL [arg={0:0}, arg={0:0}, pendingIo=2, status=0, stopped=0, stoppingEvent=1, stoppingFlag=1] [L737] 0 !stopped VAL [arg={0:0}, arg={0:0}, pendingIo=2, status=0, stopped=0, stoppingEvent=1, stoppingFlag=1] [L750] CALL 1 assume_abort_if_not(lse) [L686] COND FALSE 1 !(!cond) VAL [\old(cond)=1, cond=1, pendingIo=2, stopped=0, stoppingEvent=1, stoppingFlag=1] [L750] RET 1 assume_abort_if_not(lse) [L751] 1 stopped = 1 VAL [arg={0:0}, arg={0:0}, lse=1, pendingIo=2, stopped=1, stopped = 1=53, stoppingEvent=1, stoppingFlag=1] [L737] 0 !stopped VAL [arg={0:0}, arg={0:0}, pendingIo=2, status=0, stopped=1, stoppingEvent=1, stoppingFlag=1] Now there is a data race on ~stopped~0 between C: stopped = 1 [751] and C: !stopped [737] - UnprovableResult [Line: 744]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 748]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 751]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 756]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 757]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 758]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 759]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 760]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 196 locations, 27 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: 5.8s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 181 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 181 mSDsluCounter, 303 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 471 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 681 IncrementalHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 97 mSDtfsCounter, 681 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=372occurred in iteration=11, InterpolantAutomatonStates: 57, 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, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 751 NumberOfCodeBlocks, 751 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 647 ConstructedInterpolants, 0 QuantifiedInterpolants, 988 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-10-17 10:20:24,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d94295-9ac4-4f55-8e10-156e60da50bf/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE