./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21dab76a-d448-4e8a-b48d-75b1ca2255af/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21dab76a-d448-4e8a-b48d-75b1ca2255af/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21dab76a-d448-4e8a-b48d-75b1ca2255af/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21dab76a-d448-4e8a-b48d-75b1ca2255af/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21dab76a-d448-4e8a-b48d-75b1ca2255af/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21dab76a-d448-4e8a-b48d-75b1ca2255af/bin/uautomizer-vX5HgA9Q3a --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 4864acf28eb3fe42b4a237468061905eb474c41e1edb519c0790cee08cdc91bf --- 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-b5237d8 [2022-11-21 16:07:25,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:07:25,573 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:07:25,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:07:25,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:07:25,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:07:25,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:07:25,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:07:25,622 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:07:25,623 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:07:25,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:07:25,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:07:25,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:07:25,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:07:25,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:07:25,636 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:07:25,638 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:07:25,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:07:25,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:07:25,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:07:25,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:07:25,655 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:07:25,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:07:25,659 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:07:25,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:07:25,667 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:07:25,667 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:07:25,668 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:07:25,669 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:07:25,670 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:07:25,670 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:07:25,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:07:25,672 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:07:25,672 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:07:25,673 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:07:25,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:07:25,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:07:25,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:07:25,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:07:25,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:07:25,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:07:25,681 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21dab76a-d448-4e8a-b48d-75b1ca2255af/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 16:07:25,723 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:07:25,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:07:25,724 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:07:25,724 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:07:25,725 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:07:25,725 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:07:25,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:07:25,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:07:25,726 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:07:25,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:07:25,728 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:07:25,728 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:07:25,728 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:07:25,728 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:07:25,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:07:25,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:07:25,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:07:25,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:07:25,729 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 16:07:25,729 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:07:25,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:07:25,730 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:07:25,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:07:25,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:07:25,730 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:07:25,730 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:07:25,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:07:25,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:07:25,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:07:25,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:07:25,732 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:07:25,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:07:25,732 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:07:25,732 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:07:25,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:07:25,733 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_21dab76a-d448-4e8a-b48d-75b1ca2255af/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21dab76a-d448-4e8a-b48d-75b1ca2255af/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4864acf28eb3fe42b4a237468061905eb474c41e1edb519c0790cee08cdc91bf [2022-11-21 16:07:26,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:07:26,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:07:26,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:07:26,163 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:07:26,166 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:07:26,167 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21dab76a-d448-4e8a-b48d-75b1ca2255af/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i [2022-11-21 16:07:29,304 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:07:29,607 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:07:29,611 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21dab76a-d448-4e8a-b48d-75b1ca2255af/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i [2022-11-21 16:07:29,631 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21dab76a-d448-4e8a-b48d-75b1ca2255af/bin/uautomizer-vX5HgA9Q3a/data/584bafe71/c2b4d2bfbc254fc1b29d22dbaf43030f/FLAGdc6a99d1a [2022-11-21 16:07:29,652 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21dab76a-d448-4e8a-b48d-75b1ca2255af/bin/uautomizer-vX5HgA9Q3a/data/584bafe71/c2b4d2bfbc254fc1b29d22dbaf43030f [2022-11-21 16:07:29,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:07:29,659 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:07:29,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:07:29,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:07:29,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:07:29,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:07:29" (1/1) ... [2022-11-21 16:07:29,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44ab03b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:29, skipping insertion in model container [2022-11-21 16:07:29,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:07:29" (1/1) ... [2022-11-21 16:07:29,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:07:29,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:07:30,193 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21dab76a-d448-4e8a-b48d-75b1ca2255af/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i[30176,30189] [2022-11-21 16:07:30,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:07:30,247 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:07:30,300 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21dab76a-d448-4e8a-b48d-75b1ca2255af/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i[30176,30189] [2022-11-21 16:07:30,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:07:30,357 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:07:30,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:30 WrapperNode [2022-11-21 16:07:30,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:07:30,358 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:07:30,358 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:07:30,358 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:07:30,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:30" (1/1) ... [2022-11-21 16:07:30,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:30" (1/1) ... [2022-11-21 16:07:30,413 INFO L138 Inliner]: procedures = 170, calls = 45, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 80 [2022-11-21 16:07:30,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:07:30,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:07:30,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:07:30,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:07:30,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:30" (1/1) ... [2022-11-21 16:07:30,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:30" (1/1) ... [2022-11-21 16:07:30,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:30" (1/1) ... [2022-11-21 16:07:30,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:30" (1/1) ... [2022-11-21 16:07:30,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:30" (1/1) ... [2022-11-21 16:07:30,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:30" (1/1) ... [2022-11-21 16:07:30,446 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:30" (1/1) ... [2022-11-21 16:07:30,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:30" (1/1) ... [2022-11-21 16:07:30,450 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:07:30,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:07:30,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:07:30,451 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:07:30,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:30" (1/1) ... [2022-11-21 16:07:30,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:07:30,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21dab76a-d448-4e8a-b48d-75b1ca2255af/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:30,505 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21dab76a-d448-4e8a-b48d-75b1ca2255af/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:30,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21dab76a-d448-4e8a-b48d-75b1ca2255af/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:07:30,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:07:30,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:07:30,550 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 16:07:30,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:07:30,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:07:30,557 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-21 16:07:30,557 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-21 16:07:30,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:07:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:07:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:07:30,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:07:30,561 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:07:30,690 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:07:30,692 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:07:31,098 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:07:31,112 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:07:31,117 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-21 16:07:31,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:07:31 BoogieIcfgContainer [2022-11-21 16:07:31,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:07:31,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:07:31,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:07:31,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:07:31,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:07:29" (1/3) ... [2022-11-21 16:07:31,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7b6d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:07:31, skipping insertion in model container [2022-11-21 16:07:31,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:30" (2/3) ... [2022-11-21 16:07:31,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7b6d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:07:31, skipping insertion in model container [2022-11-21 16:07:31,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:07:31" (3/3) ... [2022-11-21 16:07:31,136 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2022-11-21 16:07:31,146 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:07:31,158 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:07:31,158 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-21 16:07:31,159 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:07:31,275 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-21 16:07:31,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 147 transitions, 302 flow [2022-11-21 16:07:31,377 INFO L130 PetriNetUnfolder]: 9/146 cut-off events. [2022-11-21 16:07:31,377 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 16:07:31,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 146 events. 9/146 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 290 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 96. Up to 3 conditions per place. [2022-11-21 16:07:31,384 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 147 transitions, 302 flow [2022-11-21 16:07:31,389 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 136 transitions, 275 flow [2022-11-21 16:07:31,399 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:07:31,405 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;@5156c269, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:07:31,406 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-21 16:07:31,429 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-11-21 16:07:31,429 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:07:31,429 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:07:31,430 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:31,431 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-21 16:07:31,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:31,436 INFO L85 PathProgramCache]: Analyzing trace with hash 2087351322, now seen corresponding path program 1 times [2022-11-21 16:07:31,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:31,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005020407] [2022-11-21 16:07:31,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:31,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:32,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:32,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:07:32,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005020407] [2022-11-21 16:07:32,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005020407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:07:32,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:07:32,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:07:32,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364618410] [2022-11-21 16:07:32,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:07:32,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:07:32,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:07:32,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:07:32,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:07:32,521 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 147 [2022-11-21 16:07:32,528 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 136 transitions, 275 flow. Second operand has 6 states, 6 states have (on average 94.66666666666667) internal successors, (568), 6 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:32,528 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:07:32,528 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 147 [2022-11-21 16:07:32,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:07:33,273 INFO L130 PetriNetUnfolder]: 474/1649 cut-off events. [2022-11-21 16:07:33,273 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 16:07:33,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2672 conditions, 1649 events. 474/1649 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 10667 event pairs, 41 based on Foata normal form. 232/1700 useless extension candidates. Maximal degree in co-relation 2623. Up to 550 conditions per place. [2022-11-21 16:07:33,285 INFO L137 encePairwiseOnDemand]: 124/147 looper letters, 110 selfloop transitions, 37 changer transitions 0/232 dead transitions. [2022-11-21 16:07:33,286 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 232 transitions, 761 flow [2022-11-21 16:07:33,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:07:33,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:07:33,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 741 transitions. [2022-11-21 16:07:33,302 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8401360544217688 [2022-11-21 16:07:33,303 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 741 transitions. [2022-11-21 16:07:33,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 741 transitions. [2022-11-21 16:07:33,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:07:33,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 741 transitions. [2022-11-21 16:07:33,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:33,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:33,328 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:33,330 INFO L175 Difference]: Start difference. First operand has 131 places, 136 transitions, 275 flow. Second operand 6 states and 741 transitions. [2022-11-21 16:07:33,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 232 transitions, 761 flow [2022-11-21 16:07:33,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 232 transitions, 760 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:07:33,342 INFO L231 Difference]: Finished difference. Result has 139 places, 162 transitions, 500 flow [2022-11-21 16:07:33,344 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=500, PETRI_PLACES=139, PETRI_TRANSITIONS=162} [2022-11-21 16:07:33,350 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 8 predicate places. [2022-11-21 16:07:33,350 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 162 transitions, 500 flow [2022-11-21 16:07:33,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 94.66666666666667) internal successors, (568), 6 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:33,352 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:07:33,353 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:33,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:07:33,354 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-21 16:07:33,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:33,356 INFO L85 PathProgramCache]: Analyzing trace with hash -271588126, now seen corresponding path program 1 times [2022-11-21 16:07:33,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:33,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691374609] [2022-11-21 16:07:33,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:33,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:33,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:33,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:07:33,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691374609] [2022-11-21 16:07:33,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691374609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:07:33,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:07:33,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:07:33,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541714437] [2022-11-21 16:07:33,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:07:33,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:07:33,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:07:33,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:07:33,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:07:33,800 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 147 [2022-11-21 16:07:33,802 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 162 transitions, 500 flow. Second operand has 6 states, 6 states have (on average 95.33333333333333) internal successors, (572), 6 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:33,803 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:07:33,804 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 147 [2022-11-21 16:07:33,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:07:34,386 INFO L130 PetriNetUnfolder]: 494/1661 cut-off events. [2022-11-21 16:07:34,387 INFO L131 PetriNetUnfolder]: For 544/544 co-relation queries the response was YES. [2022-11-21 16:07:34,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3362 conditions, 1661 events. 494/1661 cut-off events. For 544/544 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 10151 event pairs, 160 based on Foata normal form. 0/1525 useless extension candidates. Maximal degree in co-relation 3312. Up to 645 conditions per place. [2022-11-21 16:07:34,399 INFO L137 encePairwiseOnDemand]: 135/147 looper letters, 122 selfloop transitions, 18 changer transitions 0/224 dead transitions. [2022-11-21 16:07:34,400 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 224 transitions, 1024 flow [2022-11-21 16:07:34,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:07:34,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:07:34,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 654 transitions. [2022-11-21 16:07:34,402 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7414965986394558 [2022-11-21 16:07:34,402 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 654 transitions. [2022-11-21 16:07:34,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 654 transitions. [2022-11-21 16:07:34,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:07:34,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 654 transitions. [2022-11-21 16:07:34,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:34,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:34,408 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:34,409 INFO L175 Difference]: Start difference. First operand has 139 places, 162 transitions, 500 flow. Second operand 6 states and 654 transitions. [2022-11-21 16:07:34,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 224 transitions, 1024 flow [2022-11-21 16:07:34,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 224 transitions, 1024 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:07:34,424 INFO L231 Difference]: Finished difference. Result has 142 places, 160 transitions, 532 flow [2022-11-21 16:07:34,424 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=532, PETRI_PLACES=142, PETRI_TRANSITIONS=160} [2022-11-21 16:07:34,425 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 11 predicate places. [2022-11-21 16:07:34,425 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 160 transitions, 532 flow [2022-11-21 16:07:34,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 95.33333333333333) internal successors, (572), 6 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:34,426 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:07:34,426 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:34,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:07:34,427 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-21 16:07:34,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:34,429 INFO L85 PathProgramCache]: Analyzing trace with hash -611260404, now seen corresponding path program 1 times [2022-11-21 16:07:34,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:34,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14097054] [2022-11-21 16:07:34,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:34,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:34,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:34,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:34,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:07:34,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14097054] [2022-11-21 16:07:34,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14097054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:07:34,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:07:34,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:07:34,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674792136] [2022-11-21 16:07:34,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:07:34,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:07:34,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:07:34,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:07:34,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:07:34,781 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 147 [2022-11-21 16:07:34,782 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 160 transitions, 532 flow. Second operand has 6 states, 6 states have (on average 94.5) internal successors, (567), 6 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:34,782 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:07:34,782 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 147 [2022-11-21 16:07:34,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:07:35,342 INFO L130 PetriNetUnfolder]: 591/1943 cut-off events. [2022-11-21 16:07:35,343 INFO L131 PetriNetUnfolder]: For 712/712 co-relation queries the response was YES. [2022-11-21 16:07:35,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4125 conditions, 1943 events. 591/1943 cut-off events. For 712/712 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 12413 event pairs, 297 based on Foata normal form. 0/1786 useless extension candidates. Maximal degree in co-relation 4074. Up to 1148 conditions per place. [2022-11-21 16:07:35,355 INFO L137 encePairwiseOnDemand]: 132/147 looper letters, 90 selfloop transitions, 48 changer transitions 0/220 dead transitions. [2022-11-21 16:07:35,355 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 220 transitions, 1024 flow [2022-11-21 16:07:35,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:07:35,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:07:35,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 648 transitions. [2022-11-21 16:07:35,358 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7346938775510204 [2022-11-21 16:07:35,358 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 648 transitions. [2022-11-21 16:07:35,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 648 transitions. [2022-11-21 16:07:35,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:07:35,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 648 transitions. [2022-11-21 16:07:35,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 108.0) internal successors, (648), 6 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:35,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:35,363 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:35,363 INFO L175 Difference]: Start difference. First operand has 142 places, 160 transitions, 532 flow. Second operand 6 states and 648 transitions. [2022-11-21 16:07:35,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 220 transitions, 1024 flow [2022-11-21 16:07:35,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 220 transitions, 988 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:07:35,378 INFO L231 Difference]: Finished difference. Result has 147 places, 203 transitions, 884 flow [2022-11-21 16:07:35,379 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=884, PETRI_PLACES=147, PETRI_TRANSITIONS=203} [2022-11-21 16:07:35,380 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 16 predicate places. [2022-11-21 16:07:35,381 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 203 transitions, 884 flow [2022-11-21 16:07:35,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 94.5) internal successors, (567), 6 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:35,381 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:07:35,382 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:35,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:07:35,382 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-21 16:07:35,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:35,383 INFO L85 PathProgramCache]: Analyzing trace with hash -774508311, now seen corresponding path program 1 times [2022-11-21 16:07:35,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:35,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842552760] [2022-11-21 16:07:35,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:35,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:35,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:35,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:35,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:07:35,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842552760] [2022-11-21 16:07:35,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842552760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:07:35,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:07:35,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:07:35,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903555338] [2022-11-21 16:07:35,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:07:35,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:07:35,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:07:35,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:07:35,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:07:35,799 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 147 [2022-11-21 16:07:35,800 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 203 transitions, 884 flow. Second operand has 6 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:35,800 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:07:35,801 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 147 [2022-11-21 16:07:35,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:07:36,468 INFO L130 PetriNetUnfolder]: 580/1905 cut-off events. [2022-11-21 16:07:36,469 INFO L131 PetriNetUnfolder]: For 1209/1215 co-relation queries the response was YES. [2022-11-21 16:07:36,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4704 conditions, 1905 events. 580/1905 cut-off events. For 1209/1215 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 12428 event pairs, 124 based on Foata normal form. 0/1803 useless extension candidates. Maximal degree in co-relation 4646. Up to 873 conditions per place. [2022-11-21 16:07:36,481 INFO L137 encePairwiseOnDemand]: 133/147 looper letters, 165 selfloop transitions, 75 changer transitions 4/330 dead transitions. [2022-11-21 16:07:36,481 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 330 transitions, 1936 flow [2022-11-21 16:07:36,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:07:36,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:07:36,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 690 transitions. [2022-11-21 16:07:36,483 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.782312925170068 [2022-11-21 16:07:36,484 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 690 transitions. [2022-11-21 16:07:36,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 690 transitions. [2022-11-21 16:07:36,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:07:36,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 690 transitions. [2022-11-21 16:07:36,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:36,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:36,494 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:36,495 INFO L175 Difference]: Start difference. First operand has 147 places, 203 transitions, 884 flow. Second operand 6 states and 690 transitions. [2022-11-21 16:07:36,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 330 transitions, 1936 flow [2022-11-21 16:07:36,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 330 transitions, 1918 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-21 16:07:36,510 INFO L231 Difference]: Finished difference. Result has 157 places, 273 transitions, 1642 flow [2022-11-21 16:07:36,510 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=866, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1642, PETRI_PLACES=157, PETRI_TRANSITIONS=273} [2022-11-21 16:07:36,512 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 26 predicate places. [2022-11-21 16:07:36,513 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 273 transitions, 1642 flow [2022-11-21 16:07:36,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:36,516 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:07:36,517 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:36,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:07:36,518 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-21 16:07:36,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:36,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1658477466, now seen corresponding path program 1 times [2022-11-21 16:07:36,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:36,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860681393] [2022-11-21 16:07:36,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:36,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:36,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:36,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:07:36,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860681393] [2022-11-21 16:07:36,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860681393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:07:36,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:07:36,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:07:36,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263594953] [2022-11-21 16:07:36,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:07:36,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:07:36,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:07:36,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:07:36,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:07:36,818 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 147 [2022-11-21 16:07:36,818 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 273 transitions, 1642 flow. Second operand has 6 states, 6 states have (on average 115.83333333333333) internal successors, (695), 6 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:36,819 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:07:36,819 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 147 [2022-11-21 16:07:36,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:07:37,053 INFO L130 PetriNetUnfolder]: 118/788 cut-off events. [2022-11-21 16:07:37,053 INFO L131 PetriNetUnfolder]: For 604/645 co-relation queries the response was YES. [2022-11-21 16:07:37,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1777 conditions, 788 events. 118/788 cut-off events. For 604/645 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4011 event pairs, 14 based on Foata normal form. 4/775 useless extension candidates. Maximal degree in co-relation 1705. Up to 135 conditions per place. [2022-11-21 16:07:37,058 INFO L137 encePairwiseOnDemand]: 138/147 looper letters, 18 selfloop transitions, 8 changer transitions 2/197 dead transitions. [2022-11-21 16:07:37,058 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 197 transitions, 1028 flow [2022-11-21 16:07:37,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:07:37,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 16:07:37,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 596 transitions. [2022-11-21 16:07:37,060 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8108843537414966 [2022-11-21 16:07:37,060 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 596 transitions. [2022-11-21 16:07:37,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 596 transitions. [2022-11-21 16:07:37,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:07:37,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 596 transitions. [2022-11-21 16:07:37,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 119.2) internal successors, (596), 5 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:37,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 147.0) internal successors, (882), 6 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:37,065 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 147.0) internal successors, (882), 6 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:37,065 INFO L175 Difference]: Start difference. First operand has 157 places, 273 transitions, 1642 flow. Second operand 5 states and 596 transitions. [2022-11-21 16:07:37,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 197 transitions, 1028 flow [2022-11-21 16:07:37,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 197 transitions, 905 flow, removed 50 selfloop flow, removed 7 redundant places. [2022-11-21 16:07:37,075 INFO L231 Difference]: Finished difference. Result has 154 places, 192 transitions, 863 flow [2022-11-21 16:07:37,076 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=839, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=863, PETRI_PLACES=154, PETRI_TRANSITIONS=192} [2022-11-21 16:07:37,076 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 23 predicate places. [2022-11-21 16:07:37,077 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 192 transitions, 863 flow [2022-11-21 16:07:37,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.83333333333333) internal successors, (695), 6 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:37,077 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:07:37,077 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:37,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:07:37,078 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-21 16:07:37,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:37,078 INFO L85 PathProgramCache]: Analyzing trace with hash -981814335, now seen corresponding path program 1 times [2022-11-21 16:07:37,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:37,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067296015] [2022-11-21 16:07:37,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:37,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:37,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:37,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:37,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:07:37,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067296015] [2022-11-21 16:07:37,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067296015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:07:37,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:07:37,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:07:37,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000830918] [2022-11-21 16:07:37,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:07:37,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:07:37,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:07:37,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:07:37,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:07:37,500 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 147 [2022-11-21 16:07:37,501 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 192 transitions, 863 flow. Second operand has 6 states, 6 states have (on average 96.5) internal successors, (579), 6 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:37,501 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:07:37,501 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 147 [2022-11-21 16:07:37,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:07:37,870 INFO L130 PetriNetUnfolder]: 351/1119 cut-off events. [2022-11-21 16:07:37,870 INFO L131 PetriNetUnfolder]: For 1135/1135 co-relation queries the response was YES. [2022-11-21 16:07:37,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3270 conditions, 1119 events. 351/1119 cut-off events. For 1135/1135 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5701 event pairs, 150 based on Foata normal form. 0/1097 useless extension candidates. Maximal degree in co-relation 3210. Up to 759 conditions per place. [2022-11-21 16:07:37,878 INFO L137 encePairwiseOnDemand]: 136/147 looper letters, 100 selfloop transitions, 31 changer transitions 14/228 dead transitions. [2022-11-21 16:07:37,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 228 transitions, 1359 flow [2022-11-21 16:07:37,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:07:37,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:07:37,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 623 transitions. [2022-11-21 16:07:37,881 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7063492063492064 [2022-11-21 16:07:37,881 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 623 transitions. [2022-11-21 16:07:37,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 623 transitions. [2022-11-21 16:07:37,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:07:37,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 623 transitions. [2022-11-21 16:07:37,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:37,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:37,886 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:37,886 INFO L175 Difference]: Start difference. First operand has 154 places, 192 transitions, 863 flow. Second operand 6 states and 623 transitions. [2022-11-21 16:07:37,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 228 transitions, 1359 flow [2022-11-21 16:07:37,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 228 transitions, 1339 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:07:37,898 INFO L231 Difference]: Finished difference. Result has 160 places, 210 transitions, 1089 flow [2022-11-21 16:07:37,899 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=843, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1089, PETRI_PLACES=160, PETRI_TRANSITIONS=210} [2022-11-21 16:07:37,900 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 29 predicate places. [2022-11-21 16:07:37,900 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 210 transitions, 1089 flow [2022-11-21 16:07:37,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.5) internal successors, (579), 6 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:37,900 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:07:37,901 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:37,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:07:37,901 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-21 16:07:37,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:37,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1613482602, now seen corresponding path program 1 times [2022-11-21 16:07:37,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:37,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722162767] [2022-11-21 16:07:37,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:37,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:37,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:38,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:38,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:07:38,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722162767] [2022-11-21 16:07:38,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722162767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:07:38,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:07:38,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 16:07:38,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440360944] [2022-11-21 16:07:38,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:07:38,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 16:07:38,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:07:38,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 16:07:38,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:07:38,559 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 147 [2022-11-21 16:07:38,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 210 transitions, 1089 flow. Second operand has 12 states, 12 states have (on average 76.91666666666667) internal successors, (923), 12 states have internal predecessors, (923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:38,560 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:07:38,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 147 [2022-11-21 16:07:38,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:07:39,322 INFO L130 PetriNetUnfolder]: 373/1256 cut-off events. [2022-11-21 16:07:39,322 INFO L131 PetriNetUnfolder]: For 1985/1993 co-relation queries the response was YES. [2022-11-21 16:07:39,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3874 conditions, 1256 events. 373/1256 cut-off events. For 1985/1993 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 6680 event pairs, 78 based on Foata normal form. 11/1257 useless extension candidates. Maximal degree in co-relation 3800. Up to 680 conditions per place. [2022-11-21 16:07:39,332 INFO L137 encePairwiseOnDemand]: 136/147 looper letters, 162 selfloop transitions, 31 changer transitions 11/272 dead transitions. [2022-11-21 16:07:39,332 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 272 transitions, 1883 flow [2022-11-21 16:07:39,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 16:07:39,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 16:07:39,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 921 transitions. [2022-11-21 16:07:39,336 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5695732838589982 [2022-11-21 16:07:39,336 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 921 transitions. [2022-11-21 16:07:39,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 921 transitions. [2022-11-21 16:07:39,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:07:39,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 921 transitions. [2022-11-21 16:07:39,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 83.72727272727273) internal successors, (921), 11 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:39,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 147.0) internal successors, (1764), 12 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:39,344 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 147.0) internal successors, (1764), 12 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:39,344 INFO L175 Difference]: Start difference. First operand has 160 places, 210 transitions, 1089 flow. Second operand 11 states and 921 transitions. [2022-11-21 16:07:39,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 272 transitions, 1883 flow [2022-11-21 16:07:39,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 272 transitions, 1833 flow, removed 25 selfloop flow, removed 0 redundant places. [2022-11-21 16:07:39,362 INFO L231 Difference]: Finished difference. Result has 169 places, 208 transitions, 1095 flow [2022-11-21 16:07:39,362 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=1035, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1095, PETRI_PLACES=169, PETRI_TRANSITIONS=208} [2022-11-21 16:07:39,364 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 38 predicate places. [2022-11-21 16:07:39,364 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 208 transitions, 1095 flow [2022-11-21 16:07:39,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 76.91666666666667) internal successors, (923), 12 states have internal predecessors, (923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:39,365 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:07:39,365 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:39,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:07:39,366 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-21 16:07:39,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:39,366 INFO L85 PathProgramCache]: Analyzing trace with hash 920631537, now seen corresponding path program 1 times [2022-11-21 16:07:39,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:39,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415176500] [2022-11-21 16:07:39,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:39,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:39,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:40,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:40,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:07:40,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415176500] [2022-11-21 16:07:40,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415176500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:07:40,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:07:40,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 16:07:40,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822760192] [2022-11-21 16:07:40,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:07:40,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 16:07:40,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:07:40,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 16:07:40,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:07:40,182 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2022-11-21 16:07:40,184 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 208 transitions, 1095 flow. Second operand has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:40,184 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:07:40,184 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2022-11-21 16:07:40,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:07:41,268 INFO L130 PetriNetUnfolder]: 376/1306 cut-off events. [2022-11-21 16:07:41,268 INFO L131 PetriNetUnfolder]: For 1448/1457 co-relation queries the response was YES. [2022-11-21 16:07:41,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4163 conditions, 1306 events. 376/1306 cut-off events. For 1448/1457 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 7175 event pairs, 71 based on Foata normal form. 21/1320 useless extension candidates. Maximal degree in co-relation 4085. Up to 483 conditions per place. [2022-11-21 16:07:41,278 INFO L137 encePairwiseOnDemand]: 128/147 looper letters, 153 selfloop transitions, 55 changer transitions 36/315 dead transitions. [2022-11-21 16:07:41,279 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 315 transitions, 1943 flow [2022-11-21 16:07:41,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 16:07:41,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 16:07:41,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1028 transitions. [2022-11-21 16:07:41,282 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6357452071737786 [2022-11-21 16:07:41,282 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1028 transitions. [2022-11-21 16:07:41,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1028 transitions. [2022-11-21 16:07:41,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:07:41,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1028 transitions. [2022-11-21 16:07:41,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 93.45454545454545) internal successors, (1028), 11 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:41,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 147.0) internal successors, (1764), 12 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:41,289 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 147.0) internal successors, (1764), 12 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:41,289 INFO L175 Difference]: Start difference. First operand has 169 places, 208 transitions, 1095 flow. Second operand 11 states and 1028 transitions. [2022-11-21 16:07:41,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 315 transitions, 1943 flow [2022-11-21 16:07:41,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 315 transitions, 1855 flow, removed 0 selfloop flow, removed 10 redundant places. [2022-11-21 16:07:41,310 INFO L231 Difference]: Finished difference. Result has 171 places, 208 transitions, 1161 flow [2022-11-21 16:07:41,311 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=1033, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1161, PETRI_PLACES=171, PETRI_TRANSITIONS=208} [2022-11-21 16:07:41,316 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 40 predicate places. [2022-11-21 16:07:41,316 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 208 transitions, 1161 flow [2022-11-21 16:07:41,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:41,317 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:07:41,317 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:41,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:07:41,317 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-21 16:07:41,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:41,318 INFO L85 PathProgramCache]: Analyzing trace with hash 704797511, now seen corresponding path program 2 times [2022-11-21 16:07:41,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:41,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843812042] [2022-11-21 16:07:41,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:41,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:41,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:41,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:41,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:07:41,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843812042] [2022-11-21 16:07:41,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843812042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:07:41,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:07:41,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 16:07:41,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222386922] [2022-11-21 16:07:41,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:07:41,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 16:07:41,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:07:41,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 16:07:41,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:07:41,868 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2022-11-21 16:07:41,869 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 208 transitions, 1161 flow. Second operand has 12 states, 12 states have (on average 78.83333333333333) internal successors, (946), 12 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:41,869 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:07:41,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2022-11-21 16:07:41,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:07:42,857 INFO L130 PetriNetUnfolder]: 492/1527 cut-off events. [2022-11-21 16:07:42,858 INFO L131 PetriNetUnfolder]: For 2743/2751 co-relation queries the response was YES. [2022-11-21 16:07:42,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5256 conditions, 1527 events. 492/1527 cut-off events. For 2743/2751 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 8541 event pairs, 25 based on Foata normal form. 32/1556 useless extension candidates. Maximal degree in co-relation 5175. Up to 438 conditions per place. [2022-11-21 16:07:42,870 INFO L137 encePairwiseOnDemand]: 136/147 looper letters, 237 selfloop transitions, 45 changer transitions 42/395 dead transitions. [2022-11-21 16:07:42,870 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 395 transitions, 2810 flow [2022-11-21 16:07:42,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 16:07:42,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-21 16:07:42,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1170 transitions. [2022-11-21 16:07:42,874 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6122448979591837 [2022-11-21 16:07:42,875 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1170 transitions. [2022-11-21 16:07:42,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1170 transitions. [2022-11-21 16:07:42,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:07:42,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1170 transitions. [2022-11-21 16:07:42,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 90.0) internal successors, (1170), 13 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:42,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 147.0) internal successors, (2058), 14 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:42,883 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 147.0) internal successors, (2058), 14 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:42,884 INFO L175 Difference]: Start difference. First operand has 171 places, 208 transitions, 1161 flow. Second operand 13 states and 1170 transitions. [2022-11-21 16:07:42,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 395 transitions, 2810 flow [2022-11-21 16:07:42,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 395 transitions, 2716 flow, removed 3 selfloop flow, removed 9 redundant places. [2022-11-21 16:07:42,922 INFO L231 Difference]: Finished difference. Result has 179 places, 232 transitions, 1495 flow [2022-11-21 16:07:42,923 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=1094, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1495, PETRI_PLACES=179, PETRI_TRANSITIONS=232} [2022-11-21 16:07:42,924 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 48 predicate places. [2022-11-21 16:07:42,924 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 232 transitions, 1495 flow [2022-11-21 16:07:42,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 78.83333333333333) internal successors, (946), 12 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:42,925 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:07:42,925 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:42,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:07:42,925 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-21 16:07:42,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:42,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1326544211, now seen corresponding path program 3 times [2022-11-21 16:07:42,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:42,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054493223] [2022-11-21 16:07:42,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:42,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:43,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:43,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:07:43,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054493223] [2022-11-21 16:07:43,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054493223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:07:43,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:07:43,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 16:07:43,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894347066] [2022-11-21 16:07:43,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:07:43,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 16:07:43,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:07:43,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 16:07:43,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:07:43,661 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2022-11-21 16:07:43,662 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 232 transitions, 1495 flow. Second operand has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:43,662 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:07:43,662 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2022-11-21 16:07:43,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:07:44,948 INFO L130 PetriNetUnfolder]: 488/1592 cut-off events. [2022-11-21 16:07:44,948 INFO L131 PetriNetUnfolder]: For 4906/4915 co-relation queries the response was YES. [2022-11-21 16:07:44,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6059 conditions, 1592 events. 488/1592 cut-off events. For 4906/4915 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9166 event pairs, 72 based on Foata normal form. 21/1606 useless extension candidates. Maximal degree in co-relation 5972. Up to 643 conditions per place. [2022-11-21 16:07:44,962 INFO L137 encePairwiseOnDemand]: 128/147 looper letters, 182 selfloop transitions, 59 changer transitions 41/353 dead transitions. [2022-11-21 16:07:44,963 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 353 transitions, 2491 flow [2022-11-21 16:07:44,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 16:07:44,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-21 16:07:44,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1116 transitions. [2022-11-21 16:07:44,966 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6326530612244898 [2022-11-21 16:07:44,967 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1116 transitions. [2022-11-21 16:07:44,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1116 transitions. [2022-11-21 16:07:44,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:07:44,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1116 transitions. [2022-11-21 16:07:44,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 93.0) internal successors, (1116), 12 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:44,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:44,974 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:44,974 INFO L175 Difference]: Start difference. First operand has 179 places, 232 transitions, 1495 flow. Second operand 12 states and 1116 transitions. [2022-11-21 16:07:44,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 353 transitions, 2491 flow [2022-11-21 16:07:45,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 353 transitions, 2470 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:07:45,037 INFO L231 Difference]: Finished difference. Result has 186 places, 235 transitions, 1662 flow [2022-11-21 16:07:45,039 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=1486, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1662, PETRI_PLACES=186, PETRI_TRANSITIONS=235} [2022-11-21 16:07:45,039 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 55 predicate places. [2022-11-21 16:07:45,040 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 235 transitions, 1662 flow [2022-11-21 16:07:45,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:45,040 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:07:45,041 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:45,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:07:45,041 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-21 16:07:45,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:45,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1772929711, now seen corresponding path program 4 times [2022-11-21 16:07:45,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:45,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234814461] [2022-11-21 16:07:45,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:45,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:45,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:45,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:45,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:07:45,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234814461] [2022-11-21 16:07:45,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234814461] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:07:45,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:07:45,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 16:07:45,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689299829] [2022-11-21 16:07:45,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:07:45,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 16:07:45,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:07:45,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 16:07:45,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:07:45,696 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2022-11-21 16:07:45,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 235 transitions, 1662 flow. Second operand has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:45,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:07:45,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2022-11-21 16:07:45,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:07:47,199 INFO L130 PetriNetUnfolder]: 706/2225 cut-off events. [2022-11-21 16:07:47,200 INFO L131 PetriNetUnfolder]: For 9343/9351 co-relation queries the response was YES. [2022-11-21 16:07:47,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9018 conditions, 2225 events. 706/2225 cut-off events. For 9343/9351 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 14177 event pairs, 68 based on Foata normal form. 32/2244 useless extension candidates. Maximal degree in co-relation 8928. Up to 719 conditions per place. [2022-11-21 16:07:47,232 INFO L137 encePairwiseOnDemand]: 128/147 looper letters, 280 selfloop transitions, 79 changer transitions 55/485 dead transitions. [2022-11-21 16:07:47,232 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 485 transitions, 4059 flow [2022-11-21 16:07:47,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 16:07:47,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-21 16:07:47,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1135 transitions. [2022-11-21 16:07:47,236 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6434240362811792 [2022-11-21 16:07:47,236 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1135 transitions. [2022-11-21 16:07:47,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1135 transitions. [2022-11-21 16:07:47,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:07:47,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1135 transitions. [2022-11-21 16:07:47,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 94.58333333333333) internal successors, (1135), 12 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:47,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:47,245 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:47,245 INFO L175 Difference]: Start difference. First operand has 186 places, 235 transitions, 1662 flow. Second operand 12 states and 1135 transitions. [2022-11-21 16:07:47,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 485 transitions, 4059 flow [2022-11-21 16:07:47,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 485 transitions, 3867 flow, removed 6 selfloop flow, removed 9 redundant places. [2022-11-21 16:07:47,314 INFO L231 Difference]: Finished difference. Result has 194 places, 274 transitions, 2307 flow [2022-11-21 16:07:47,315 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=1536, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2307, PETRI_PLACES=194, PETRI_TRANSITIONS=274} [2022-11-21 16:07:47,316 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 63 predicate places. [2022-11-21 16:07:47,316 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 274 transitions, 2307 flow [2022-11-21 16:07:47,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:47,317 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:07:47,317 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:47,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 16:07:47,317 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-21 16:07:47,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:47,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1840928947, now seen corresponding path program 5 times [2022-11-21 16:07:47,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:47,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561404365] [2022-11-21 16:07:47,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:47,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:47,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:47,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:47,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:07:47,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561404365] [2022-11-21 16:07:47,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561404365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:07:47,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:07:47,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 16:07:47,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623469299] [2022-11-21 16:07:47,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:07:47,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 16:07:47,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:07:47,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 16:07:47,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:07:47,932 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2022-11-21 16:07:47,933 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 274 transitions, 2307 flow. Second operand has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:47,933 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:07:47,934 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2022-11-21 16:07:47,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:07:49,631 INFO L130 PetriNetUnfolder]: 843/2622 cut-off events. [2022-11-21 16:07:49,631 INFO L131 PetriNetUnfolder]: For 14536/14545 co-relation queries the response was YES. [2022-11-21 16:07:49,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11257 conditions, 2622 events. 843/2622 cut-off events. For 14536/14545 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 17565 event pairs, 135 based on Foata normal form. 32/2639 useless extension candidates. Maximal degree in co-relation 11161. Up to 961 conditions per place. [2022-11-21 16:07:49,658 INFO L137 encePairwiseOnDemand]: 128/147 looper letters, 265 selfloop transitions, 83 changer transitions 54/473 dead transitions. [2022-11-21 16:07:49,658 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 473 transitions, 4288 flow [2022-11-21 16:07:49,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 16:07:49,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-21 16:07:49,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1127 transitions. [2022-11-21 16:07:49,665 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2022-11-21 16:07:49,666 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1127 transitions. [2022-11-21 16:07:49,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1127 transitions. [2022-11-21 16:07:49,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:07:49,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1127 transitions. [2022-11-21 16:07:49,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 93.91666666666667) internal successors, (1127), 12 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:49,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:49,677 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:49,678 INFO L175 Difference]: Start difference. First operand has 194 places, 274 transitions, 2307 flow. Second operand 12 states and 1127 transitions. [2022-11-21 16:07:49,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 473 transitions, 4288 flow [2022-11-21 16:07:49,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 473 transitions, 4205 flow, removed 34 selfloop flow, removed 5 redundant places. [2022-11-21 16:07:49,795 INFO L231 Difference]: Finished difference. Result has 206 places, 300 transitions, 2854 flow [2022-11-21 16:07:49,796 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=2230, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2854, PETRI_PLACES=206, PETRI_TRANSITIONS=300} [2022-11-21 16:07:49,797 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 75 predicate places. [2022-11-21 16:07:49,797 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 300 transitions, 2854 flow [2022-11-21 16:07:49,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:49,798 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:07:49,798 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:49,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 16:07:49,799 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-21 16:07:49,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:49,800 INFO L85 PathProgramCache]: Analyzing trace with hash 909514943, now seen corresponding path program 6 times [2022-11-21 16:07:49,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:49,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036854481] [2022-11-21 16:07:49,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:49,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:49,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:50,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:50,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:07:50,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036854481] [2022-11-21 16:07:50,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036854481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:07:50,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:07:50,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 16:07:50,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114651233] [2022-11-21 16:07:50,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:07:50,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 16:07:50,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:07:50,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 16:07:50,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:07:50,433 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2022-11-21 16:07:50,434 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 300 transitions, 2854 flow. Second operand has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:50,434 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:07:50,434 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2022-11-21 16:07:50,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:07:52,263 INFO L130 PetriNetUnfolder]: 869/2776 cut-off events. [2022-11-21 16:07:52,263 INFO L131 PetriNetUnfolder]: For 20833/20841 co-relation queries the response was YES. [2022-11-21 16:07:52,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12563 conditions, 2776 events. 869/2776 cut-off events. For 20833/20841 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 19162 event pairs, 138 based on Foata normal form. 32/2792 useless extension candidates. Maximal degree in co-relation 12462. Up to 1322 conditions per place. [2022-11-21 16:07:52,294 INFO L137 encePairwiseOnDemand]: 128/147 looper letters, 257 selfloop transitions, 81 changer transitions 52/461 dead transitions. [2022-11-21 16:07:52,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 461 transitions, 4516 flow [2022-11-21 16:07:52,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 16:07:52,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-21 16:07:52,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1131 transitions. [2022-11-21 16:07:52,297 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.641156462585034 [2022-11-21 16:07:52,297 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1131 transitions. [2022-11-21 16:07:52,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1131 transitions. [2022-11-21 16:07:52,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:07:52,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1131 transitions. [2022-11-21 16:07:52,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 94.25) internal successors, (1131), 12 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:52,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:52,305 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:52,305 INFO L175 Difference]: Start difference. First operand has 206 places, 300 transitions, 2854 flow. Second operand 12 states and 1131 transitions. [2022-11-21 16:07:52,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 461 transitions, 4516 flow [2022-11-21 16:07:52,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 461 transitions, 4336 flow, removed 36 selfloop flow, removed 5 redundant places. [2022-11-21 16:07:52,418 INFO L231 Difference]: Finished difference. Result has 219 places, 316 transitions, 3292 flow [2022-11-21 16:07:52,418 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=2691, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3292, PETRI_PLACES=219, PETRI_TRANSITIONS=316} [2022-11-21 16:07:52,419 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 88 predicate places. [2022-11-21 16:07:52,419 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 316 transitions, 3292 flow [2022-11-21 16:07:52,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:52,420 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:07:52,420 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:52,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 16:07:52,420 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-21 16:07:52,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:52,421 INFO L85 PathProgramCache]: Analyzing trace with hash 595123849, now seen corresponding path program 7 times [2022-11-21 16:07:52,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:52,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537136263] [2022-11-21 16:07:52,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:52,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:52,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:52,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:52,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:07:52,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537136263] [2022-11-21 16:07:52,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537136263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:07:52,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:07:52,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 16:07:52,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777092787] [2022-11-21 16:07:52,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:07:52,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 16:07:52,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:07:52,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 16:07:52,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:07:52,978 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2022-11-21 16:07:52,979 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 316 transitions, 3292 flow. Second operand has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:52,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:07:52,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2022-11-21 16:07:52,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:07:54,682 INFO L130 PetriNetUnfolder]: 914/2994 cut-off events. [2022-11-21 16:07:54,682 INFO L131 PetriNetUnfolder]: For 29143/29152 co-relation queries the response was YES. [2022-11-21 16:07:54,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14159 conditions, 2994 events. 914/2994 cut-off events. For 29143/29152 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 21293 event pairs, 165 based on Foata normal form. 32/3010 useless extension candidates. Maximal degree in co-relation 14050. Up to 768 conditions per place. [2022-11-21 16:07:54,711 INFO L137 encePairwiseOnDemand]: 128/147 looper letters, 314 selfloop transitions, 97 changer transitions 54/536 dead transitions. [2022-11-21 16:07:54,711 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 536 transitions, 5759 flow [2022-11-21 16:07:54,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 16:07:54,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-21 16:07:54,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1128 transitions. [2022-11-21 16:07:54,714 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6394557823129252 [2022-11-21 16:07:54,715 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1128 transitions. [2022-11-21 16:07:54,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1128 transitions. [2022-11-21 16:07:54,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:07:54,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1128 transitions. [2022-11-21 16:07:54,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:54,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:54,723 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:54,723 INFO L175 Difference]: Start difference. First operand has 219 places, 316 transitions, 3292 flow. Second operand 12 states and 1128 transitions. [2022-11-21 16:07:54,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 536 transitions, 5759 flow [2022-11-21 16:07:54,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 536 transitions, 5721 flow, removed 14 selfloop flow, removed 4 redundant places. [2022-11-21 16:07:54,946 INFO L231 Difference]: Finished difference. Result has 233 places, 340 transitions, 4003 flow [2022-11-21 16:07:54,947 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=3255, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4003, PETRI_PLACES=233, PETRI_TRANSITIONS=340} [2022-11-21 16:07:54,948 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 102 predicate places. [2022-11-21 16:07:54,948 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 340 transitions, 4003 flow [2022-11-21 16:07:54,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:54,949 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:07:54,949 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:54,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 16:07:54,950 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-21 16:07:54,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:54,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1992170313, now seen corresponding path program 8 times [2022-11-21 16:07:54,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:54,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092273482] [2022-11-21 16:07:54,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:54,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:54,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:55,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:55,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:07:55,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092273482] [2022-11-21 16:07:55,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092273482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:07:55,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:07:55,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 16:07:55,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168293740] [2022-11-21 16:07:55,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:07:55,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 16:07:55,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:07:55,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 16:07:55,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:07:55,502 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2022-11-21 16:07:55,504 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 340 transitions, 4003 flow. Second operand has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:55,504 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:07:55,504 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2022-11-21 16:07:55,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:07:57,166 INFO L130 PetriNetUnfolder]: 863/2880 cut-off events. [2022-11-21 16:07:57,167 INFO L131 PetriNetUnfolder]: For 35745/35754 co-relation queries the response was YES. [2022-11-21 16:07:57,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14614 conditions, 2880 events. 863/2880 cut-off events. For 35745/35754 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 20608 event pairs, 166 based on Foata normal form. 32/2893 useless extension candidates. Maximal degree in co-relation 14498. Up to 1290 conditions per place. [2022-11-21 16:07:57,280 INFO L137 encePairwiseOnDemand]: 128/147 looper letters, 298 selfloop transitions, 91 changer transitions 61/521 dead transitions. [2022-11-21 16:07:57,280 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 521 transitions, 5984 flow [2022-11-21 16:07:57,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 16:07:57,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-21 16:07:57,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1132 transitions. [2022-11-21 16:07:57,295 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6417233560090703 [2022-11-21 16:07:57,295 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1132 transitions. [2022-11-21 16:07:57,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1132 transitions. [2022-11-21 16:07:57,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:07:57,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1132 transitions. [2022-11-21 16:07:57,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 94.33333333333333) internal successors, (1132), 12 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:57,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:57,304 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:57,304 INFO L175 Difference]: Start difference. First operand has 233 places, 340 transitions, 4003 flow. Second operand 12 states and 1132 transitions. [2022-11-21 16:07:57,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 521 transitions, 5984 flow [2022-11-21 16:07:57,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 521 transitions, 5827 flow, removed 76 selfloop flow, removed 3 redundant places. [2022-11-21 16:07:57,549 INFO L231 Difference]: Finished difference. Result has 246 places, 358 transitions, 4466 flow [2022-11-21 16:07:57,550 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=3846, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4466, PETRI_PLACES=246, PETRI_TRANSITIONS=358} [2022-11-21 16:07:57,550 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 115 predicate places. [2022-11-21 16:07:57,550 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 358 transitions, 4466 flow [2022-11-21 16:07:57,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:57,551 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:07:57,551 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:57,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 16:07:57,551 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-21 16:07:57,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:57,552 INFO L85 PathProgramCache]: Analyzing trace with hash 905576933, now seen corresponding path program 9 times [2022-11-21 16:07:57,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:57,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64750611] [2022-11-21 16:07:57,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:57,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:57,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:58,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:58,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:07:58,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64750611] [2022-11-21 16:07:58,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64750611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:07:58,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:07:58,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 16:07:58,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925692799] [2022-11-21 16:07:58,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:07:58,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 16:07:58,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:07:58,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 16:07:58,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:07:58,240 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2022-11-21 16:07:58,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 358 transitions, 4466 flow. Second operand has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:58,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:07:58,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2022-11-21 16:07:58,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:08:00,006 INFO L130 PetriNetUnfolder]: 886/3030 cut-off events. [2022-11-21 16:08:00,007 INFO L131 PetriNetUnfolder]: For 47078/47087 co-relation queries the response was YES. [2022-11-21 16:08:00,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15796 conditions, 3030 events. 886/3030 cut-off events. For 47078/47087 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 22177 event pairs, 165 based on Foata normal form. 32/3043 useless extension candidates. Maximal degree in co-relation 15674. Up to 1117 conditions per place. [2022-11-21 16:08:00,036 INFO L137 encePairwiseOnDemand]: 128/147 looper letters, 308 selfloop transitions, 107 changer transitions 54/540 dead transitions. [2022-11-21 16:08:00,037 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 540 transitions, 6697 flow [2022-11-21 16:08:00,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 16:08:00,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-21 16:08:00,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1120 transitions. [2022-11-21 16:08:00,040 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6349206349206349 [2022-11-21 16:08:00,040 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1120 transitions. [2022-11-21 16:08:00,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1120 transitions. [2022-11-21 16:08:00,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:08:00,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1120 transitions. [2022-11-21 16:08:00,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 93.33333333333333) internal successors, (1120), 12 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:00,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:00,047 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:00,047 INFO L175 Difference]: Start difference. First operand has 246 places, 358 transitions, 4466 flow. Second operand 12 states and 1120 transitions. [2022-11-21 16:08:00,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 540 transitions, 6697 flow [2022-11-21 16:08:00,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 540 transitions, 6533 flow, removed 65 selfloop flow, removed 5 redundant places. [2022-11-21 16:08:00,375 INFO L231 Difference]: Finished difference. Result has 258 places, 372 transitions, 4934 flow [2022-11-21 16:08:00,376 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=4302, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4934, PETRI_PLACES=258, PETRI_TRANSITIONS=372} [2022-11-21 16:08:00,377 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 127 predicate places. [2022-11-21 16:08:00,377 INFO L495 AbstractCegarLoop]: Abstraction has has 258 places, 372 transitions, 4934 flow [2022-11-21 16:08:00,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:00,378 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:08:00,378 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:08:00,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 16:08:00,378 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-21 16:08:00,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:08:00,380 INFO L85 PathProgramCache]: Analyzing trace with hash 667061095, now seen corresponding path program 10 times [2022-11-21 16:08:00,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:08:00,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857797936] [2022-11-21 16:08:00,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:08:00,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:08:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:01,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:08:01,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:08:01,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857797936] [2022-11-21 16:08:01,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857797936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:08:01,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:08:01,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 16:08:01,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871636785] [2022-11-21 16:08:01,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:08:01,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 16:08:01,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:08:01,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 16:08:01,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:08:01,086 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2022-11-21 16:08:01,087 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 372 transitions, 4934 flow. Second operand has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:01,087 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:08:01,087 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2022-11-21 16:08:01,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:08:03,170 INFO L130 PetriNetUnfolder]: 900/3141 cut-off events. [2022-11-21 16:08:03,170 INFO L131 PetriNetUnfolder]: For 60086/60095 co-relation queries the response was YES. [2022-11-21 16:08:03,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16935 conditions, 3141 events. 900/3141 cut-off events. For 60086/60095 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 23514 event pairs, 166 based on Foata normal form. 32/3154 useless extension candidates. Maximal degree in co-relation 16807. Up to 1345 conditions per place. [2022-11-21 16:08:03,198 INFO L137 encePairwiseOnDemand]: 128/147 looper letters, 276 selfloop transitions, 107 changer transitions 59/513 dead transitions. [2022-11-21 16:08:03,199 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 513 transitions, 6645 flow [2022-11-21 16:08:03,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 16:08:03,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-21 16:08:03,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1192 transitions. [2022-11-21 16:08:03,205 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6237571951857667 [2022-11-21 16:08:03,205 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1192 transitions. [2022-11-21 16:08:03,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1192 transitions. [2022-11-21 16:08:03,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:08:03,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1192 transitions. [2022-11-21 16:08:03,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 91.6923076923077) internal successors, (1192), 13 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:03,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 147.0) internal successors, (2058), 14 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:03,212 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 147.0) internal successors, (2058), 14 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:03,213 INFO L175 Difference]: Start difference. First operand has 258 places, 372 transitions, 4934 flow. Second operand 13 states and 1192 transitions. [2022-11-21 16:08:03,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 513 transitions, 6645 flow [2022-11-21 16:08:03,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 513 transitions, 6256 flow, removed 108 selfloop flow, removed 6 redundant places. [2022-11-21 16:08:03,602 INFO L231 Difference]: Finished difference. Result has 271 places, 381 transitions, 5159 flow [2022-11-21 16:08:03,602 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=4558, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=5159, PETRI_PLACES=271, PETRI_TRANSITIONS=381} [2022-11-21 16:08:03,603 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 140 predicate places. [2022-11-21 16:08:03,603 INFO L495 AbstractCegarLoop]: Abstraction has has 271 places, 381 transitions, 5159 flow [2022-11-21 16:08:03,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:03,604 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:08:03,604 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:08:03,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 16:08:03,604 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-21 16:08:03,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:08:03,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1757213791, now seen corresponding path program 11 times [2022-11-21 16:08:03,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:08:03,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076292122] [2022-11-21 16:08:03,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:08:03,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:08:03,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:04,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:08:04,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:08:04,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076292122] [2022-11-21 16:08:04,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076292122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:08:04,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:08:04,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 16:08:04,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444127037] [2022-11-21 16:08:04,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:08:04,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 16:08:04,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:08:04,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 16:08:04,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:08:04,154 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2022-11-21 16:08:04,155 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 381 transitions, 5159 flow. Second operand has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:04,155 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:08:04,155 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2022-11-21 16:08:04,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:08:05,956 INFO L130 PetriNetUnfolder]: 827/3001 cut-off events. [2022-11-21 16:08:05,956 INFO L131 PetriNetUnfolder]: For 54752/54761 co-relation queries the response was YES. [2022-11-21 16:08:05,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16282 conditions, 3001 events. 827/3001 cut-off events. For 54752/54761 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 22697 event pairs, 120 based on Foata normal form. 32/3020 useless extension candidates. Maximal degree in co-relation 16148. Up to 1262 conditions per place. [2022-11-21 16:08:05,985 INFO L137 encePairwiseOnDemand]: 128/147 looper letters, 282 selfloop transitions, 118 changer transitions 51/522 dead transitions. [2022-11-21 16:08:05,985 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 522 transitions, 6823 flow [2022-11-21 16:08:05,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 16:08:05,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-21 16:08:05,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1201 transitions. [2022-11-21 16:08:05,993 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6284667713239142 [2022-11-21 16:08:05,993 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1201 transitions. [2022-11-21 16:08:05,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1201 transitions. [2022-11-21 16:08:05,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:08:05,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1201 transitions. [2022-11-21 16:08:05,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 92.38461538461539) internal successors, (1201), 13 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:05,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 147.0) internal successors, (2058), 14 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:06,000 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 147.0) internal successors, (2058), 14 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:06,000 INFO L175 Difference]: Start difference. First operand has 271 places, 381 transitions, 5159 flow. Second operand 13 states and 1201 transitions. [2022-11-21 16:08:06,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 522 transitions, 6823 flow [2022-11-21 16:08:06,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 522 transitions, 6662 flow, removed 43 selfloop flow, removed 6 redundant places. [2022-11-21 16:08:06,399 INFO L231 Difference]: Finished difference. Result has 280 places, 387 transitions, 5475 flow [2022-11-21 16:08:06,399 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=5000, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=5475, PETRI_PLACES=280, PETRI_TRANSITIONS=387} [2022-11-21 16:08:06,400 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 149 predicate places. [2022-11-21 16:08:06,400 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 387 transitions, 5475 flow [2022-11-21 16:08:06,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:06,400 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:08:06,400 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:08:06,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-21 16:08:06,401 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-21 16:08:06,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:08:06,401 INFO L85 PathProgramCache]: Analyzing trace with hash 864268809, now seen corresponding path program 12 times [2022-11-21 16:08:06,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:08:06,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645034838] [2022-11-21 16:08:06,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:08:06,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:08:06,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:06,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:08:06,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:08:06,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645034838] [2022-11-21 16:08:06,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645034838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:08:06,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:08:06,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 16:08:06,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975900804] [2022-11-21 16:08:06,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:08:06,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 16:08:06,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:08:06,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 16:08:06,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:08:06,943 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2022-11-21 16:08:06,944 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 387 transitions, 5475 flow. Second operand has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:06,944 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:08:06,944 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2022-11-21 16:08:06,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:08:08,616 INFO L130 PetriNetUnfolder]: 758/2892 cut-off events. [2022-11-21 16:08:08,616 INFO L131 PetriNetUnfolder]: For 57836/57845 co-relation queries the response was YES. [2022-11-21 16:08:08,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15696 conditions, 2892 events. 758/2892 cut-off events. For 57836/57845 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 21945 event pairs, 134 based on Foata normal form. 32/2908 useless extension candidates. Maximal degree in co-relation 15558. Up to 1181 conditions per place. [2022-11-21 16:08:08,636 INFO L137 encePairwiseOnDemand]: 128/147 looper letters, 266 selfloop transitions, 109 changer transitions 70/506 dead transitions. [2022-11-21 16:08:08,637 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 506 transitions, 6933 flow [2022-11-21 16:08:08,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 16:08:08,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-21 16:08:08,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1174 transitions. [2022-11-21 16:08:08,640 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6143380429094715 [2022-11-21 16:08:08,640 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1174 transitions. [2022-11-21 16:08:08,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1174 transitions. [2022-11-21 16:08:08,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:08:08,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1174 transitions. [2022-11-21 16:08:08,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 90.3076923076923) internal successors, (1174), 13 states have internal predecessors, (1174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:08,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 147.0) internal successors, (2058), 14 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:08,647 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 147.0) internal successors, (2058), 14 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:08,647 INFO L175 Difference]: Start difference. First operand has 280 places, 387 transitions, 5475 flow. Second operand 13 states and 1174 transitions. [2022-11-21 16:08:08,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 506 transitions, 6933 flow [2022-11-21 16:08:08,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 506 transitions, 6631 flow, removed 44 selfloop flow, removed 17 redundant places. [2022-11-21 16:08:08,998 INFO L231 Difference]: Finished difference. Result has 276 places, 372 transitions, 5365 flow [2022-11-21 16:08:08,999 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=5161, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=5365, PETRI_PLACES=276, PETRI_TRANSITIONS=372} [2022-11-21 16:08:08,999 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 145 predicate places. [2022-11-21 16:08:08,999 INFO L495 AbstractCegarLoop]: Abstraction has has 276 places, 372 transitions, 5365 flow [2022-11-21 16:08:09,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:09,000 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:08:09,000 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:08:09,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-21 16:08:09,000 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-21 16:08:09,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:08:09,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1571830909, now seen corresponding path program 1 times [2022-11-21 16:08:09,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:08:09,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633573625] [2022-11-21 16:08:09,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:08:09,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:08:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:09,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:08:09,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:08:09,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633573625] [2022-11-21 16:08:09,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633573625] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:08:09,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:08:09,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 16:08:09,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008287150] [2022-11-21 16:08:09,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:08:09,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 16:08:09,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:08:09,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 16:08:09,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:08:09,536 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 147 [2022-11-21 16:08:09,537 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 372 transitions, 5365 flow. Second operand has 12 states, 12 states have (on average 77.91666666666667) internal successors, (935), 12 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:09,537 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:08:09,537 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 147 [2022-11-21 16:08:09,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:08:10,555 INFO L130 PetriNetUnfolder]: 643/2165 cut-off events. [2022-11-21 16:08:10,556 INFO L131 PetriNetUnfolder]: For 46576/46577 co-relation queries the response was YES. [2022-11-21 16:08:10,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12742 conditions, 2165 events. 643/2165 cut-off events. For 46576/46577 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 14740 event pairs, 286 based on Foata normal form. 44/2186 useless extension candidates. Maximal degree in co-relation 12609. Up to 1312 conditions per place. [2022-11-21 16:08:10,579 INFO L137 encePairwiseOnDemand]: 137/147 looper letters, 0 selfloop transitions, 0 changer transitions 480/480 dead transitions. [2022-11-21 16:08:10,579 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 480 transitions, 8303 flow [2022-11-21 16:08:10,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 16:08:10,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 16:08:10,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 909 transitions. [2022-11-21 16:08:10,584 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.562152133580705 [2022-11-21 16:08:10,584 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 909 transitions. [2022-11-21 16:08:10,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 909 transitions. [2022-11-21 16:08:10,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:08:10,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 909 transitions. [2022-11-21 16:08:10,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 82.63636363636364) internal successors, (909), 11 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:10,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 147.0) internal successors, (1764), 12 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:10,589 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 147.0) internal successors, (1764), 12 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:10,590 INFO L175 Difference]: Start difference. First operand has 276 places, 372 transitions, 5365 flow. Second operand 11 states and 909 transitions. [2022-11-21 16:08:10,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 480 transitions, 8303 flow [2022-11-21 16:08:10,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 480 transitions, 7487 flow, removed 112 selfloop flow, removed 21 redundant places. [2022-11-21 16:08:10,762 INFO L231 Difference]: Finished difference. Result has 253 places, 0 transitions, 0 flow [2022-11-21 16:08:10,763 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=4709, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=253, PETRI_TRANSITIONS=0} [2022-11-21 16:08:10,763 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, 122 predicate places. [2022-11-21 16:08:10,763 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 0 transitions, 0 flow [2022-11-21 16:08:10,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 77.91666666666667) internal successors, (935), 12 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:10,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2022-11-21 16:08:10,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2022-11-21 16:08:10,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 11 remaining) [2022-11-21 16:08:10,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2022-11-21 16:08:10,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2022-11-21 16:08:10,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2022-11-21 16:08:10,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2022-11-21 16:08:10,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2022-11-21 16:08:10,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2022-11-21 16:08:10,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2022-11-21 16:08:10,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2022-11-21 16:08:10,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-21 16:08:10,769 INFO L444 BasicCegarLoop]: Path program histogram: [12, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:08:10,775 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:08:10,775 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:08:10,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:08:10 BasicIcfg [2022-11-21 16:08:10,781 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:08:10,781 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:08:10,781 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:08:10,782 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:08:10,782 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:07:31" (3/4) ... [2022-11-21 16:08:10,785 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:08:10,791 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-21 16:08:10,795 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-21 16:08:10,796 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 16:08:10,796 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 16:08:10,796 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:08:10,830 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21dab76a-d448-4e8a-b48d-75b1ca2255af/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:08:10,831 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:08:10,831 INFO L158 Benchmark]: Toolchain (without parser) took 41172.73ms. Allocated memory was 155.2MB in the beginning and 775.9MB in the end (delta: 620.8MB). Free memory was 112.6MB in the beginning and 488.0MB in the end (delta: -375.4MB). Peak memory consumption was 244.6MB. Max. memory is 16.1GB. [2022-11-21 16:08:10,832 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 75.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:08:10,832 INFO L158 Benchmark]: CACSL2BoogieTranslator took 694.45ms. Allocated memory is still 155.2MB. Free memory was 112.6MB in the beginning and 112.9MB in the end (delta: -353.6kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-21 16:08:10,832 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.88ms. Allocated memory is still 155.2MB. Free memory was 112.9MB in the beginning and 110.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:08:10,833 INFO L158 Benchmark]: Boogie Preprocessor took 36.59ms. Allocated memory is still 155.2MB. Free memory was 110.4MB in the beginning and 108.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:08:10,833 INFO L158 Benchmark]: RCFGBuilder took 670.90ms. Allocated memory is still 155.2MB. Free memory was 108.3MB in the beginning and 90.2MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 16:08:10,834 INFO L158 Benchmark]: TraceAbstraction took 39656.50ms. Allocated memory was 155.2MB in the beginning and 775.9MB in the end (delta: 620.8MB). Free memory was 89.4MB in the beginning and 491.1MB in the end (delta: -401.7MB). Peak memory consumption was 474.3MB. Max. memory is 16.1GB. [2022-11-21 16:08:10,834 INFO L158 Benchmark]: Witness Printer took 49.69ms. Allocated memory is still 775.9MB. Free memory was 490.1MB in the beginning and 488.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:08:10,838 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 75.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 694.45ms. Allocated memory is still 155.2MB. Free memory was 112.6MB in the beginning and 112.9MB in the end (delta: -353.6kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.88ms. Allocated memory is still 155.2MB. Free memory was 112.9MB in the beginning and 110.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.59ms. Allocated memory is still 155.2MB. Free memory was 110.4MB in the beginning and 108.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 670.90ms. Allocated memory is still 155.2MB. Free memory was 108.3MB in the beginning and 90.2MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 39656.50ms. Allocated memory was 155.2MB in the beginning and 775.9MB in the end (delta: 620.8MB). Free memory was 89.4MB in the beginning and 491.1MB in the end (delta: -401.7MB). Peak memory consumption was 474.3MB. Max. memory is 16.1GB. * Witness Printer took 49.69ms. Allocated memory is still 775.9MB. Free memory was 490.1MB in the beginning and 488.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 196 locations, 11 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: 39.5s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 12, EmptinessCheckTime: 0.0s, AutomataDifference: 27.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3074 SdHoareTripleChecker+Valid, 10.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3074 mSDsluCounter, 1715 SdHoareTripleChecker+Invalid, 8.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1002 mSDsCounter, 1526 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9937 IncrementalHoareTripleChecker+Invalid, 11463 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1526 mSolverCounterUnsat, 713 mSDtfsCounter, 9937 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 369 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 304 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 646 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5475occurred in iteration=18, InterpolantAutomatonStates: 204, 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, 0.3s SatisfiabilityAnalysisTime, 10.8s InterpolantComputationTime, 1596 NumberOfCodeBlocks, 1596 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1576 ConstructedInterpolants, 0 QuantifiedInterpolants, 10891 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 16:08:10,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21dab76a-d448-4e8a-b48d-75b1ca2255af/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE