./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/unroll-5.wvr.c --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_b6542c0c-21a5-402e-8e22-727621ca7d92/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6542c0c-21a5-402e-8e22-727621ca7d92/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_b6542c0c-21a5-402e-8e22-727621ca7d92/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6542c0c-21a5-402e-8e22-727621ca7d92/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/unroll-5.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6542c0c-21a5-402e-8e22-727621ca7d92/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_b6542c0c-21a5-402e-8e22-727621ca7d92/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 c8ce32899aa465c1eaa89b234122d94aaf792bb347295ccb743670e04bba6b8e --- 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 16:10:56,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:10:56,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:10:56,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:10:56,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:10:56,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:10:56,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:10:56,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:10:56,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:10:56,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:10:56,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:10:56,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:10:56,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:10:56,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:10:56,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:10:56,589 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:10:56,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:10:56,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:10:56,596 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:10:56,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:10:56,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:10:56,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:10:56,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:10:56,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:10:56,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:10:56,618 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:10:56,618 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:10:56,619 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:10:56,620 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:10:56,620 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:10:56,621 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:10:56,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:10:56,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:10:56,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:10:56,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:10:56,624 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:10:56,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:10:56,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:10:56,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:10:56,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:10:56,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:10:56,632 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6542c0c-21a5-402e-8e22-727621ca7d92/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 16:10:56,671 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:10:56,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:10:56,672 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:10:56,672 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:10:56,673 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:10:56,674 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:10:56,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:10:56,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:10:56,675 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:10:56,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:10:56,676 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:10:56,676 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:10:56,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:10:56,677 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:10:56,677 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:10:56,677 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:10:56,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:10:56,677 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:10:56,677 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 16:10:56,678 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:10:56,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:10:56,678 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:10:56,678 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:10:56,678 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:10:56,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:10:56,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:10:56,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:10:56,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:10:56,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:10:56,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:10:56,680 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:10:56,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:10:56,681 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:10:56,681 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:10:56,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:10:56,681 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_b6542c0c-21a5-402e-8e22-727621ca7d92/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6542c0c-21a5-402e-8e22-727621ca7d92/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8ce32899aa465c1eaa89b234122d94aaf792bb347295ccb743670e04bba6b8e [2022-11-21 16:10:56,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:10:56,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:10:56,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:10:56,972 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:10:56,973 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:10:56,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6542c0c-21a5-402e-8e22-727621ca7d92/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/weaver/unroll-5.wvr.c [2022-11-21 16:10:59,987 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:11:00,251 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:11:00,252 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6542c0c-21a5-402e-8e22-727621ca7d92/sv-benchmarks/c/weaver/unroll-5.wvr.c [2022-11-21 16:11:00,261 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6542c0c-21a5-402e-8e22-727621ca7d92/bin/uautomizer-vX5HgA9Q3a/data/ff13faf34/2427421fb303422f810fb8f0e5475726/FLAG1c86b7716 [2022-11-21 16:11:00,276 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6542c0c-21a5-402e-8e22-727621ca7d92/bin/uautomizer-vX5HgA9Q3a/data/ff13faf34/2427421fb303422f810fb8f0e5475726 [2022-11-21 16:11:00,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:11:00,280 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:11:00,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:11:00,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:11:00,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:11:00,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:11:00" (1/1) ... [2022-11-21 16:11:00,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4180806c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:11:00, skipping insertion in model container [2022-11-21 16:11:00,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:11:00" (1/1) ... [2022-11-21 16:11:00,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:11:00,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:11:00,610 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_b6542c0c-21a5-402e-8e22-727621ca7d92/sv-benchmarks/c/weaver/unroll-5.wvr.c[2644,2657] [2022-11-21 16:11:00,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:11:00,635 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:11:00,669 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_b6542c0c-21a5-402e-8e22-727621ca7d92/sv-benchmarks/c/weaver/unroll-5.wvr.c[2644,2657] [2022-11-21 16:11:00,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:11:00,688 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:11:00,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:11:00 WrapperNode [2022-11-21 16:11:00,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:11:00,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:11:00,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:11:00,691 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:11:00,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:11:00" (1/1) ... [2022-11-21 16:11:00,711 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:11:00" (1/1) ... [2022-11-21 16:11:00,748 INFO L138 Inliner]: procedures = 24, calls = 38, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 345 [2022-11-21 16:11:00,749 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:11:00,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:11:00,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:11:00,750 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:11:00,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:11:00" (1/1) ... [2022-11-21 16:11:00,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:11:00" (1/1) ... [2022-11-21 16:11:00,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:11:00" (1/1) ... [2022-11-21 16:11:00,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:11:00" (1/1) ... [2022-11-21 16:11:00,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:11:00" (1/1) ... [2022-11-21 16:11:00,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:11:00" (1/1) ... [2022-11-21 16:11:00,786 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:11:00" (1/1) ... [2022-11-21 16:11:00,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:11:00" (1/1) ... [2022-11-21 16:11:00,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:11:00,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:11:00,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:11:00,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:11:00,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:11:00" (1/1) ... [2022-11-21 16:11:00,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:11:00,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6542c0c-21a5-402e-8e22-727621ca7d92/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:11:00,826 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6542c0c-21a5-402e-8e22-727621ca7d92/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:11:00,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6542c0c-21a5-402e-8e22-727621ca7d92/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:11:00,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:11:00,878 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-21 16:11:00,878 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-21 16:11:00,878 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-21 16:11:00,878 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-21 16:11:00,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:11:00,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:11:00,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:11:00,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:11:00,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:11:00,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:11:00,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:11:00,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:11:00,883 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 16:11:00,992 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:11:00,996 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:11:01,734 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:11:01,747 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:11:01,748 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-21 16:11:01,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:11:01 BoogieIcfgContainer [2022-11-21 16:11:01,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:11:01,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:11:01,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:11:01,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:11:01,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:11:00" (1/3) ... [2022-11-21 16:11:01,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ef4585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:11:01, skipping insertion in model container [2022-11-21 16:11:01,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:11:00" (2/3) ... [2022-11-21 16:11:01,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ef4585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:11:01, skipping insertion in model container [2022-11-21 16:11:01,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:11:01" (3/3) ... [2022-11-21 16:11:01,760 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-5.wvr.c [2022-11-21 16:11:01,768 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:11:01,779 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:11:01,780 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 55 error locations. [2022-11-21 16:11:01,780 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:11:02,002 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-21 16:11:02,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 438 places, 454 transitions, 924 flow [2022-11-21 16:11:02,300 INFO L130 PetriNetUnfolder]: 23/452 cut-off events. [2022-11-21 16:11:02,300 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-21 16:11:02,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 452 events. 23/452 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 573 event pairs, 0 based on Foata normal form. 0/374 useless extension candidates. Maximal degree in co-relation 307. Up to 2 conditions per place. [2022-11-21 16:11:02,313 INFO L82 GeneralOperation]: Start removeDead. Operand has 438 places, 454 transitions, 924 flow [2022-11-21 16:11:02,324 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 419 places, 434 transitions, 880 flow [2022-11-21 16:11:02,336 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:11:02,343 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;@58bfa3a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:11:02,343 INFO L358 AbstractCegarLoop]: Starting to check reachability of 101 error locations. [2022-11-21 16:11:02,347 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2022-11-21 16:11:02,351 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:11:02,351 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:02,352 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] [2022-11-21 16:11:02,353 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-21 16:11:02,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:02,358 INFO L85 PathProgramCache]: Analyzing trace with hash -685848224, now seen corresponding path program 1 times [2022-11-21 16:11:02,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:02,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047067478] [2022-11-21 16:11:02,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:02,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:02,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:02,618 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 16:11:02,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:02,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047067478] [2022-11-21 16:11:02,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047067478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:02,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:02,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:11:02,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892574313] [2022-11-21 16:11:02,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:02,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:02,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:02,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:02,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:11:02,691 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 454 [2022-11-21 16:11:02,701 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 434 transitions, 880 flow. Second operand has 3 states, 3 states have (on average 421.3333333333333) internal successors, (1264), 3 states have internal predecessors, (1264), 0 states have call successors, (0), 0 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 16:11:02,702 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:02,702 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 454 [2022-11-21 16:11:02,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:03,173 INFO L130 PetriNetUnfolder]: 54/1458 cut-off events. [2022-11-21 16:11:03,173 INFO L131 PetriNetUnfolder]: For 32/62 co-relation queries the response was YES. [2022-11-21 16:11:03,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1533 conditions, 1458 events. 54/1458 cut-off events. For 32/62 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 6928 event pairs, 15 based on Foata normal form. 33/1198 useless extension candidates. Maximal degree in co-relation 1325. Up to 55 conditions per place. [2022-11-21 16:11:03,188 INFO L137 encePairwiseOnDemand]: 438/454 looper letters, 16 selfloop transitions, 2 changer transitions 4/420 dead transitions. [2022-11-21 16:11:03,188 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 420 transitions, 888 flow [2022-11-21 16:11:03,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:03,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:11:03,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1292 transitions. [2022-11-21 16:11:03,212 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9486049926578561 [2022-11-21 16:11:03,213 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1292 transitions. [2022-11-21 16:11:03,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1292 transitions. [2022-11-21 16:11:03,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:03,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1292 transitions. [2022-11-21 16:11:03,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 430.6666666666667) internal successors, (1292), 3 states have internal predecessors, (1292), 0 states have call successors, (0), 0 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 16:11:03,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:03,242 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:03,244 INFO L175 Difference]: Start difference. First operand has 419 places, 434 transitions, 880 flow. Second operand 3 states and 1292 transitions. [2022-11-21 16:11:03,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 420 transitions, 888 flow [2022-11-21 16:11:03,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 420 transitions, 880 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:11:03,268 INFO L231 Difference]: Finished difference. Result has 416 places, 416 transitions, 840 flow [2022-11-21 16:11:03,271 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=840, PETRI_PLACES=416, PETRI_TRANSITIONS=416} [2022-11-21 16:11:03,275 INFO L288 CegarLoopForPetriNet]: 419 programPoint places, -3 predicate places. [2022-11-21 16:11:03,275 INFO L495 AbstractCegarLoop]: Abstraction has has 416 places, 416 transitions, 840 flow [2022-11-21 16:11:03,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 421.3333333333333) internal successors, (1264), 3 states have internal predecessors, (1264), 0 states have call successors, (0), 0 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 16:11:03,277 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:03,277 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:03,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:11:03,278 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-21 16:11:03,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:03,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1447366186, now seen corresponding path program 1 times [2022-11-21 16:11:03,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:03,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518083727] [2022-11-21 16:11:03,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:03,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:03,368 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 16:11:03,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:03,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518083727] [2022-11-21 16:11:03,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518083727] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:03,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:03,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:11:03,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363407875] [2022-11-21 16:11:03,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:03,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:03,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:03,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:03,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:11:03,382 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 405 out of 454 [2022-11-21 16:11:03,384 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 416 transitions, 840 flow. Second operand has 3 states, 3 states have (on average 406.3333333333333) internal successors, (1219), 3 states have internal predecessors, (1219), 0 states have call successors, (0), 0 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 16:11:03,384 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:03,384 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 405 of 454 [2022-11-21 16:11:03,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:03,966 INFO L130 PetriNetUnfolder]: 147/1775 cut-off events. [2022-11-21 16:11:03,966 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-11-21 16:11:03,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1992 conditions, 1775 events. 147/1775 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 8951 event pairs, 63 based on Foata normal form. 0/1403 useless extension candidates. Maximal degree in co-relation 1961. Up to 206 conditions per place. [2022-11-21 16:11:03,984 INFO L137 encePairwiseOnDemand]: 451/454 looper letters, 31 selfloop transitions, 2 changer transitions 0/415 dead transitions. [2022-11-21 16:11:03,985 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 415 transitions, 904 flow [2022-11-21 16:11:03,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:03,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:11:03,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1249 transitions. [2022-11-21 16:11:03,990 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9170337738619677 [2022-11-21 16:11:03,990 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1249 transitions. [2022-11-21 16:11:03,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1249 transitions. [2022-11-21 16:11:03,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:03,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1249 transitions. [2022-11-21 16:11:03,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 416.3333333333333) internal successors, (1249), 3 states have internal predecessors, (1249), 0 states have call successors, (0), 0 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 16:11:03,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:03,998 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:03,998 INFO L175 Difference]: Start difference. First operand has 416 places, 416 transitions, 840 flow. Second operand 3 states and 1249 transitions. [2022-11-21 16:11:03,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 415 transitions, 904 flow [2022-11-21 16:11:04,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 415 transitions, 900 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:11:04,009 INFO L231 Difference]: Finished difference. Result has 411 places, 415 transitions, 838 flow [2022-11-21 16:11:04,010 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=834, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=838, PETRI_PLACES=411, PETRI_TRANSITIONS=415} [2022-11-21 16:11:04,010 INFO L288 CegarLoopForPetriNet]: 419 programPoint places, -8 predicate places. [2022-11-21 16:11:04,011 INFO L495 AbstractCegarLoop]: Abstraction has has 411 places, 415 transitions, 838 flow [2022-11-21 16:11:04,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 406.3333333333333) internal successors, (1219), 3 states have internal predecessors, (1219), 0 states have call successors, (0), 0 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 16:11:04,012 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:04,013 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] [2022-11-21 16:11:04,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:11:04,013 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-21 16:11:04,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:04,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1908182891, now seen corresponding path program 1 times [2022-11-21 16:11:04,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:04,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77626806] [2022-11-21 16:11:04,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:04,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:04,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:04,115 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 16:11:04,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:04,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77626806] [2022-11-21 16:11:04,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77626806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:04,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:04,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:11:04,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378286481] [2022-11-21 16:11:04,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:04,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:04,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:04,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:04,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:11:04,120 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 454 [2022-11-21 16:11:04,121 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 415 transitions, 838 flow. Second operand has 3 states, 3 states have (on average 409.3333333333333) internal successors, (1228), 3 states have internal predecessors, (1228), 0 states have call successors, (0), 0 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 16:11:04,121 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:04,122 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 454 [2022-11-21 16:11:04,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:04,550 INFO L130 PetriNetUnfolder]: 96/1478 cut-off events. [2022-11-21 16:11:04,551 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-11-21 16:11:04,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1606 conditions, 1478 events. 96/1478 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6908 event pairs, 32 based on Foata normal form. 0/1207 useless extension candidates. Maximal degree in co-relation 1567. Up to 117 conditions per place. [2022-11-21 16:11:04,568 INFO L137 encePairwiseOnDemand]: 445/454 looper letters, 21 selfloop transitions, 1 changer transitions 0/407 dead transitions. [2022-11-21 16:11:04,568 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 407 transitions, 866 flow [2022-11-21 16:11:04,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:04,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:11:04,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1254 transitions. [2022-11-21 16:11:04,572 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.920704845814978 [2022-11-21 16:11:04,572 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1254 transitions. [2022-11-21 16:11:04,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1254 transitions. [2022-11-21 16:11:04,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:04,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1254 transitions. [2022-11-21 16:11:04,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 418.0) internal successors, (1254), 3 states have internal predecessors, (1254), 0 states have call successors, (0), 0 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 16:11:04,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:04,580 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:04,580 INFO L175 Difference]: Start difference. First operand has 411 places, 415 transitions, 838 flow. Second operand 3 states and 1254 transitions. [2022-11-21 16:11:04,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 407 transitions, 866 flow [2022-11-21 16:11:04,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 407 transitions, 862 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:11:04,588 INFO L231 Difference]: Finished difference. Result has 403 places, 407 transitions, 820 flow [2022-11-21 16:11:04,588 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=818, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=820, PETRI_PLACES=403, PETRI_TRANSITIONS=407} [2022-11-21 16:11:04,589 INFO L288 CegarLoopForPetriNet]: 419 programPoint places, -16 predicate places. [2022-11-21 16:11:04,589 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 407 transitions, 820 flow [2022-11-21 16:11:04,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 409.3333333333333) internal successors, (1228), 3 states have internal predecessors, (1228), 0 states have call successors, (0), 0 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 16:11:04,590 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:04,591 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] [2022-11-21 16:11:04,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:11:04,591 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-21 16:11:04,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:04,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1971107898, now seen corresponding path program 1 times [2022-11-21 16:11:04,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:04,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627296723] [2022-11-21 16:11:04,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:04,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:04,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:04,669 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 16:11:04,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:04,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627296723] [2022-11-21 16:11:04,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627296723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:04,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:04,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:11:04,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77912754] [2022-11-21 16:11:04,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:04,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:04,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:04,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:04,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:11:04,679 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 454 [2022-11-21 16:11:04,681 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 407 transitions, 820 flow. Second operand has 3 states, 3 states have (on average 412.3333333333333) internal successors, (1237), 3 states have internal predecessors, (1237), 0 states have call successors, (0), 0 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 16:11:04,681 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:04,681 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 454 [2022-11-21 16:11:04,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:05,040 INFO L130 PetriNetUnfolder]: 131/1508 cut-off events. [2022-11-21 16:11:05,041 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-11-21 16:11:05,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1706 conditions, 1508 events. 131/1508 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 7197 event pairs, 63 based on Foata normal form. 0/1237 useless extension candidates. Maximal degree in co-relation 1668. Up to 188 conditions per place. [2022-11-21 16:11:05,060 INFO L137 encePairwiseOnDemand]: 451/454 looper letters, 25 selfloop transitions, 2 changer transitions 0/406 dead transitions. [2022-11-21 16:11:05,060 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 406 transitions, 872 flow [2022-11-21 16:11:05,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:05,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:11:05,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1261 transitions. [2022-11-21 16:11:05,064 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9258443465491923 [2022-11-21 16:11:05,064 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1261 transitions. [2022-11-21 16:11:05,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1261 transitions. [2022-11-21 16:11:05,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:05,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1261 transitions. [2022-11-21 16:11:05,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 420.3333333333333) internal successors, (1261), 3 states have internal predecessors, (1261), 0 states have call successors, (0), 0 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 16:11:05,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:05,077 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:05,077 INFO L175 Difference]: Start difference. First operand has 403 places, 407 transitions, 820 flow. Second operand 3 states and 1261 transitions. [2022-11-21 16:11:05,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 406 transitions, 872 flow [2022-11-21 16:11:05,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 406 transitions, 871 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:11:05,086 INFO L231 Difference]: Finished difference. Result has 403 places, 406 transitions, 821 flow [2022-11-21 16:11:05,087 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=817, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=821, PETRI_PLACES=403, PETRI_TRANSITIONS=406} [2022-11-21 16:11:05,088 INFO L288 CegarLoopForPetriNet]: 419 programPoint places, -16 predicate places. [2022-11-21 16:11:05,093 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 406 transitions, 821 flow [2022-11-21 16:11:05,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 412.3333333333333) internal successors, (1237), 3 states have internal predecessors, (1237), 0 states have call successors, (0), 0 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 16:11:05,095 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:05,095 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] [2022-11-21 16:11:05,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:11:05,095 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-21 16:11:05,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:05,096 INFO L85 PathProgramCache]: Analyzing trace with hash -2146104986, now seen corresponding path program 1 times [2022-11-21 16:11:05,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:05,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40372184] [2022-11-21 16:11:05,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:05,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:05,692 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 16:11:05,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:05,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40372184] [2022-11-21 16:11:05,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40372184] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:05,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:05,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:11:05,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246590162] [2022-11-21 16:11:05,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:05,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:11:05,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:05,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:11:05,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:11:05,698 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 454 [2022-11-21 16:11:05,701 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 406 transitions, 821 flow. Second operand has 6 states, 6 states have (on average 371.8333333333333) internal successors, (2231), 6 states have internal predecessors, (2231), 0 states have call successors, (0), 0 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 16:11:05,701 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:05,701 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 454 [2022-11-21 16:11:05,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:09,436 INFO L130 PetriNetUnfolder]: 3374/16354 cut-off events. [2022-11-21 16:11:09,436 INFO L131 PetriNetUnfolder]: For 61/61 co-relation queries the response was YES. [2022-11-21 16:11:09,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21203 conditions, 16354 events. 3374/16354 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 164491 event pairs, 2772 based on Foata normal form. 0/13297 useless extension candidates. Maximal degree in co-relation 21166. Up to 4831 conditions per place. [2022-11-21 16:11:09,557 INFO L137 encePairwiseOnDemand]: 448/454 looper letters, 63 selfloop transitions, 5 changer transitions 0/405 dead transitions. [2022-11-21 16:11:09,557 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 405 transitions, 955 flow [2022-11-21 16:11:09,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:11:09,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:11:09,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2289 transitions. [2022-11-21 16:11:09,562 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8403083700440529 [2022-11-21 16:11:09,562 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2289 transitions. [2022-11-21 16:11:09,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2289 transitions. [2022-11-21 16:11:09,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:09,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2289 transitions. [2022-11-21 16:11:09,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 381.5) internal successors, (2289), 6 states have internal predecessors, (2289), 0 states have call successors, (0), 0 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 16:11:09,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 0 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 16:11:09,576 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 0 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 16:11:09,577 INFO L175 Difference]: Start difference. First operand has 403 places, 406 transitions, 821 flow. Second operand 6 states and 2289 transitions. [2022-11-21 16:11:09,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 405 transitions, 955 flow [2022-11-21 16:11:09,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 405 transitions, 951 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:11:09,589 INFO L231 Difference]: Finished difference. Result has 405 places, 405 transitions, 825 flow [2022-11-21 16:11:09,590 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=815, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=825, PETRI_PLACES=405, PETRI_TRANSITIONS=405} [2022-11-21 16:11:09,593 INFO L288 CegarLoopForPetriNet]: 419 programPoint places, -14 predicate places. [2022-11-21 16:11:09,594 INFO L495 AbstractCegarLoop]: Abstraction has has 405 places, 405 transitions, 825 flow [2022-11-21 16:11:09,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 371.8333333333333) internal successors, (2231), 6 states have internal predecessors, (2231), 0 states have call successors, (0), 0 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 16:11:09,595 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:09,596 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] [2022-11-21 16:11:09,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:11:09,596 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-21 16:11:09,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:09,597 INFO L85 PathProgramCache]: Analyzing trace with hash 2103126755, now seen corresponding path program 1 times [2022-11-21 16:11:09,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:09,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543540769] [2022-11-21 16:11:09,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:09,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:09,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:09,672 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 16:11:09,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:09,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543540769] [2022-11-21 16:11:09,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543540769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:09,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:09,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:11:09,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330504095] [2022-11-21 16:11:09,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:09,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:09,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:09,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:09,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:11:09,676 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 454 [2022-11-21 16:11:09,677 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 405 transitions, 825 flow. Second operand has 3 states, 3 states have (on average 424.3333333333333) internal successors, (1273), 3 states have internal predecessors, (1273), 0 states have call successors, (0), 0 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 16:11:09,677 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:09,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 454 [2022-11-21 16:11:09,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:09,850 INFO L130 PetriNetUnfolder]: 40/1183 cut-off events. [2022-11-21 16:11:09,850 INFO L131 PetriNetUnfolder]: For 4/20 co-relation queries the response was YES. [2022-11-21 16:11:09,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1230 conditions, 1183 events. 40/1183 cut-off events. For 4/20 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 4892 event pairs, 8 based on Foata normal form. 0/982 useless extension candidates. Maximal degree in co-relation 1212. Up to 32 conditions per place. [2022-11-21 16:11:09,859 INFO L137 encePairwiseOnDemand]: 450/454 looper letters, 11 selfloop transitions, 1 changer transitions 0/402 dead transitions. [2022-11-21 16:11:09,859 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 402 transitions, 843 flow [2022-11-21 16:11:09,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:09,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:11:09,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1284 transitions. [2022-11-21 16:11:09,862 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9427312775330396 [2022-11-21 16:11:09,863 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1284 transitions. [2022-11-21 16:11:09,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1284 transitions. [2022-11-21 16:11:09,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:09,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1284 transitions. [2022-11-21 16:11:09,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 428.0) internal successors, (1284), 3 states have internal predecessors, (1284), 0 states have call successors, (0), 0 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 16:11:09,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:09,869 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:09,870 INFO L175 Difference]: Start difference. First operand has 405 places, 405 transitions, 825 flow. Second operand 3 states and 1284 transitions. [2022-11-21 16:11:09,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 402 transitions, 843 flow [2022-11-21 16:11:09,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 402 transitions, 833 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:11:09,877 INFO L231 Difference]: Finished difference. Result has 399 places, 402 transitions, 811 flow [2022-11-21 16:11:09,878 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=809, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=811, PETRI_PLACES=399, PETRI_TRANSITIONS=402} [2022-11-21 16:11:09,879 INFO L288 CegarLoopForPetriNet]: 419 programPoint places, -20 predicate places. [2022-11-21 16:11:09,879 INFO L495 AbstractCegarLoop]: Abstraction has has 399 places, 402 transitions, 811 flow [2022-11-21 16:11:09,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 424.3333333333333) internal successors, (1273), 3 states have internal predecessors, (1273), 0 states have call successors, (0), 0 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 16:11:09,880 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:09,880 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] [2022-11-21 16:11:09,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:11:09,880 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-21 16:11:09,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:09,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1284823680, now seen corresponding path program 1 times [2022-11-21 16:11:09,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:09,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949789222] [2022-11-21 16:11:09,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:09,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:09,925 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 16:11:09,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:09,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949789222] [2022-11-21 16:11:09,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949789222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:09,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:09,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:11:09,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153353205] [2022-11-21 16:11:09,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:09,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:09,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:09,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:09,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:11:09,929 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 454 [2022-11-21 16:11:09,930 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 402 transitions, 811 flow. Second operand has 3 states, 3 states have (on average 421.0) internal successors, (1263), 3 states have internal predecessors, (1263), 0 states have call successors, (0), 0 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 16:11:09,930 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:09,931 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 454 [2022-11-21 16:11:09,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:10,205 INFO L130 PetriNetUnfolder]: 45/1377 cut-off events. [2022-11-21 16:11:10,206 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-21 16:11:10,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1429 conditions, 1377 events. 45/1377 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 6264 event pairs, 5 based on Foata normal form. 0/1153 useless extension candidates. Maximal degree in co-relation 1392. Up to 22 conditions per place. [2022-11-21 16:11:10,216 INFO L137 encePairwiseOnDemand]: 447/454 looper letters, 13 selfloop transitions, 3 changer transitions 0/399 dead transitions. [2022-11-21 16:11:10,216 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 399 transitions, 838 flow [2022-11-21 16:11:10,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:10,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:11:10,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1280 transitions. [2022-11-21 16:11:10,221 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9397944199706314 [2022-11-21 16:11:10,221 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1280 transitions. [2022-11-21 16:11:10,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1280 transitions. [2022-11-21 16:11:10,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:10,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1280 transitions. [2022-11-21 16:11:10,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 426.6666666666667) internal successors, (1280), 3 states have internal predecessors, (1280), 0 states have call successors, (0), 0 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 16:11:10,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:10,228 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:10,229 INFO L175 Difference]: Start difference. First operand has 399 places, 402 transitions, 811 flow. Second operand 3 states and 1280 transitions. [2022-11-21 16:11:10,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 399 transitions, 838 flow [2022-11-21 16:11:10,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 399 transitions, 837 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:11:10,236 INFO L231 Difference]: Finished difference. Result has 396 places, 398 transitions, 808 flow [2022-11-21 16:11:10,237 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=802, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=808, PETRI_PLACES=396, PETRI_TRANSITIONS=398} [2022-11-21 16:11:10,238 INFO L288 CegarLoopForPetriNet]: 419 programPoint places, -23 predicate places. [2022-11-21 16:11:10,238 INFO L495 AbstractCegarLoop]: Abstraction has has 396 places, 398 transitions, 808 flow [2022-11-21 16:11:10,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 421.0) internal successors, (1263), 3 states have internal predecessors, (1263), 0 states have call successors, (0), 0 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 16:11:10,239 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:10,239 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] [2022-11-21 16:11:10,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:11:10,239 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-21 16:11:10,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:10,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1740622680, now seen corresponding path program 1 times [2022-11-21 16:11:10,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:10,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518138737] [2022-11-21 16:11:10,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:10,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:10,300 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 16:11:10,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:10,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518138737] [2022-11-21 16:11:10,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518138737] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:10,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:10,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:11:10,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106207019] [2022-11-21 16:11:10,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:10,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:10,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:10,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:10,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:11:10,305 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 454 [2022-11-21 16:11:10,306 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 398 transitions, 808 flow. Second operand has 3 states, 3 states have (on average 373.3333333333333) internal successors, (1120), 3 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 16:11:10,306 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:10,306 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 454 [2022-11-21 16:11:10,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:10,487 INFO L130 PetriNetUnfolder]: 61/643 cut-off events. [2022-11-21 16:11:10,487 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-11-21 16:11:10,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 795 conditions, 643 events. 61/643 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2456 event pairs, 29 based on Foata normal form. 1/581 useless extension candidates. Maximal degree in co-relation 758. Up to 92 conditions per place. [2022-11-21 16:11:10,492 INFO L137 encePairwiseOnDemand]: 427/454 looper letters, 39 selfloop transitions, 10 changer transitions 5/383 dead transitions. [2022-11-21 16:11:10,493 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 383 transitions, 881 flow [2022-11-21 16:11:10,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:10,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:11:10,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1183 transitions. [2022-11-21 16:11:10,496 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.868575624082232 [2022-11-21 16:11:10,496 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1183 transitions. [2022-11-21 16:11:10,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1183 transitions. [2022-11-21 16:11:10,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:10,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1183 transitions. [2022-11-21 16:11:10,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 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 16:11:10,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:10,516 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:10,517 INFO L175 Difference]: Start difference. First operand has 396 places, 398 transitions, 808 flow. Second operand 3 states and 1183 transitions. [2022-11-21 16:11:10,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 383 transitions, 881 flow [2022-11-21 16:11:10,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 383 transitions, 875 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:11:10,524 INFO L231 Difference]: Finished difference. Result has 380 places, 377 transitions, 779 flow [2022-11-21 16:11:10,525 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=779, PETRI_PLACES=380, PETRI_TRANSITIONS=377} [2022-11-21 16:11:10,525 INFO L288 CegarLoopForPetriNet]: 419 programPoint places, -39 predicate places. [2022-11-21 16:11:10,526 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 377 transitions, 779 flow [2022-11-21 16:11:10,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 373.3333333333333) internal successors, (1120), 3 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 16:11:10,527 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:10,527 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] [2022-11-21 16:11:10,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:11:10,527 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-21 16:11:10,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:10,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1949337363, now seen corresponding path program 1 times [2022-11-21 16:11:10,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:10,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342311752] [2022-11-21 16:11:10,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:10,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:10,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:10,902 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 16:11:10,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:10,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342311752] [2022-11-21 16:11:10,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342311752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:10,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:10,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:11:10,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242404516] [2022-11-21 16:11:10,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:10,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:11:10,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:10,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:11:10,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:11:10,907 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 454 [2022-11-21 16:11:10,909 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 377 transitions, 779 flow. Second operand has 6 states, 6 states have (on average 376.8333333333333) internal successors, (2261), 6 states have internal predecessors, (2261), 0 states have call successors, (0), 0 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 16:11:10,910 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:10,910 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 454 [2022-11-21 16:11:10,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:13,182 INFO L130 PetriNetUnfolder]: 3193/9085 cut-off events. [2022-11-21 16:11:13,183 INFO L131 PetriNetUnfolder]: For 7/65 co-relation queries the response was YES. [2022-11-21 16:11:13,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14133 conditions, 9085 events. 3193/9085 cut-off events. For 7/65 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 70642 event pairs, 762 based on Foata normal form. 15/7960 useless extension candidates. Maximal degree in co-relation 14094. Up to 1767 conditions per place. [2022-11-21 16:11:13,256 INFO L137 encePairwiseOnDemand]: 449/454 looper letters, 199 selfloop transitions, 4 changer transitions 0/520 dead transitions. [2022-11-21 16:11:13,257 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 520 transitions, 1471 flow [2022-11-21 16:11:13,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:11:13,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:11:13,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2454 transitions. [2022-11-21 16:11:13,263 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9008810572687225 [2022-11-21 16:11:13,263 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2454 transitions. [2022-11-21 16:11:13,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2454 transitions. [2022-11-21 16:11:13,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:13,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2454 transitions. [2022-11-21 16:11:13,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 409.0) internal successors, (2454), 6 states have internal predecessors, (2454), 0 states have call successors, (0), 0 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 16:11:13,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 0 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 16:11:13,278 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 0 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 16:11:13,278 INFO L175 Difference]: Start difference. First operand has 380 places, 377 transitions, 779 flow. Second operand 6 states and 2454 transitions. [2022-11-21 16:11:13,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 520 transitions, 1471 flow [2022-11-21 16:11:13,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 520 transitions, 1451 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:11:13,290 INFO L231 Difference]: Finished difference. Result has 377 places, 376 transitions, 765 flow [2022-11-21 16:11:13,291 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=757, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=765, PETRI_PLACES=377, PETRI_TRANSITIONS=376} [2022-11-21 16:11:13,292 INFO L288 CegarLoopForPetriNet]: 419 programPoint places, -42 predicate places. [2022-11-21 16:11:13,292 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 376 transitions, 765 flow [2022-11-21 16:11:13,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 376.8333333333333) internal successors, (2261), 6 states have internal predecessors, (2261), 0 states have call successors, (0), 0 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 16:11:13,293 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:13,294 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] [2022-11-21 16:11:13,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:11:13,294 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-21 16:11:13,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:13,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1775938818, now seen corresponding path program 1 times [2022-11-21 16:11:13,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:13,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077703061] [2022-11-21 16:11:13,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:13,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:13,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:13,345 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 16:11:13,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:13,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077703061] [2022-11-21 16:11:13,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077703061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:13,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:13,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:11:13,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092052347] [2022-11-21 16:11:13,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:13,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:13,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:13,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:13,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:11:13,350 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 414 out of 454 [2022-11-21 16:11:13,352 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 376 transitions, 765 flow. Second operand has 3 states, 3 states have (on average 415.6666666666667) internal successors, (1247), 3 states have internal predecessors, (1247), 0 states have call successors, (0), 0 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 16:11:13,352 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:13,352 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 414 of 454 [2022-11-21 16:11:13,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:13,605 INFO L130 PetriNetUnfolder]: 85/1177 cut-off events. [2022-11-21 16:11:13,605 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-11-21 16:11:13,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1299 conditions, 1177 events. 85/1177 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 4903 event pairs, 10 based on Foata normal form. 0/1064 useless extension candidates. Maximal degree in co-relation 1262. Up to 104 conditions per place. [2022-11-21 16:11:13,614 INFO L137 encePairwiseOnDemand]: 446/454 looper letters, 19 selfloop transitions, 2 changer transitions 0/374 dead transitions. [2022-11-21 16:11:13,615 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 374 transitions, 805 flow [2022-11-21 16:11:13,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:13,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:11:13,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1269 transitions. [2022-11-21 16:11:13,619 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9317180616740088 [2022-11-21 16:11:13,619 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1269 transitions. [2022-11-21 16:11:13,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1269 transitions. [2022-11-21 16:11:13,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:13,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1269 transitions. [2022-11-21 16:11:13,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 423.0) internal successors, (1269), 3 states have internal predecessors, (1269), 0 states have call successors, (0), 0 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 16:11:13,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:13,627 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:13,628 INFO L175 Difference]: Start difference. First operand has 377 places, 376 transitions, 765 flow. Second operand 3 states and 1269 transitions. [2022-11-21 16:11:13,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 374 transitions, 805 flow [2022-11-21 16:11:13,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 374 transitions, 798 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:11:13,636 INFO L231 Difference]: Finished difference. Result has 370 places, 372 transitions, 760 flow [2022-11-21 16:11:13,637 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=760, PETRI_PLACES=370, PETRI_TRANSITIONS=372} [2022-11-21 16:11:13,638 INFO L288 CegarLoopForPetriNet]: 419 programPoint places, -49 predicate places. [2022-11-21 16:11:13,638 INFO L495 AbstractCegarLoop]: Abstraction has has 370 places, 372 transitions, 760 flow [2022-11-21 16:11:13,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 415.6666666666667) internal successors, (1247), 3 states have internal predecessors, (1247), 0 states have call successors, (0), 0 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 16:11:13,639 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:13,639 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, 1, 1, 1, 1] [2022-11-21 16:11:13,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:11:13,640 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-21 16:11:13,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:13,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1170695588, now seen corresponding path program 1 times [2022-11-21 16:11:13,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:13,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110962013] [2022-11-21 16:11:13,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:13,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:13,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:13,775 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 16:11:13,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:13,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110962013] [2022-11-21 16:11:13,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110962013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:13,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:13,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:11:13,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804589232] [2022-11-21 16:11:13,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:13,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:11:13,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:13,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:11:13,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:11:13,780 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 419 out of 454 [2022-11-21 16:11:13,783 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 372 transitions, 760 flow. Second operand has 4 states, 4 states have (on average 422.0) internal successors, (1688), 4 states have internal predecessors, (1688), 0 states have call successors, (0), 0 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 16:11:13,783 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:13,783 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 419 of 454 [2022-11-21 16:11:13,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:14,212 INFO L130 PetriNetUnfolder]: 78/1847 cut-off events. [2022-11-21 16:11:14,212 INFO L131 PetriNetUnfolder]: For 2/4 co-relation queries the response was YES. [2022-11-21 16:11:14,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1991 conditions, 1847 events. 78/1847 cut-off events. For 2/4 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 9157 event pairs, 11 based on Foata normal form. 1/1671 useless extension candidates. Maximal degree in co-relation 1953. Up to 42 conditions per place. [2022-11-21 16:11:14,227 INFO L137 encePairwiseOnDemand]: 448/454 looper letters, 29 selfloop transitions, 6 changer transitions 0/389 dead transitions. [2022-11-21 16:11:14,227 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 389 transitions, 868 flow [2022-11-21 16:11:14,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:11:14,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 16:11:14,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2131 transitions. [2022-11-21 16:11:14,233 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9387665198237886 [2022-11-21 16:11:14,233 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2131 transitions. [2022-11-21 16:11:14,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2131 transitions. [2022-11-21 16:11:14,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:14,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2131 transitions. [2022-11-21 16:11:14,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 426.2) internal successors, (2131), 5 states have internal predecessors, (2131), 0 states have call successors, (0), 0 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 16:11:14,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 454.0) internal successors, (2724), 6 states have internal predecessors, (2724), 0 states have call successors, (0), 0 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 16:11:14,245 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 454.0) internal successors, (2724), 6 states have internal predecessors, (2724), 0 states have call successors, (0), 0 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 16:11:14,246 INFO L175 Difference]: Start difference. First operand has 370 places, 372 transitions, 760 flow. Second operand 5 states and 2131 transitions. [2022-11-21 16:11:14,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 389 transitions, 868 flow [2022-11-21 16:11:14,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 389 transitions, 868 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:11:14,255 INFO L231 Difference]: Finished difference. Result has 377 places, 376 transitions, 798 flow [2022-11-21 16:11:14,256 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=798, PETRI_PLACES=377, PETRI_TRANSITIONS=376} [2022-11-21 16:11:14,256 INFO L288 CegarLoopForPetriNet]: 419 programPoint places, -42 predicate places. [2022-11-21 16:11:14,257 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 376 transitions, 798 flow [2022-11-21 16:11:14,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 422.0) internal successors, (1688), 4 states have internal predecessors, (1688), 0 states have call successors, (0), 0 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 16:11:14,258 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:14,258 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:14,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 16:11:14,258 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-21 16:11:14,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:14,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1919829365, now seen corresponding path program 1 times [2022-11-21 16:11:14,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:14,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684024215] [2022-11-21 16:11:14,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:14,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:14,686 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 16:11:14,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:14,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684024215] [2022-11-21 16:11:14,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684024215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:14,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:14,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:11:14,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082288231] [2022-11-21 16:11:14,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:14,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:11:14,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:14,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:11:14,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:11:14,692 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 454 [2022-11-21 16:11:14,695 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 376 transitions, 798 flow. Second operand has 6 states, 6 states have (on average 377.8333333333333) internal successors, (2267), 6 states have internal predecessors, (2267), 0 states have call successors, (0), 0 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 16:11:14,696 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:14,696 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 454 [2022-11-21 16:11:14,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:19,293 INFO L130 PetriNetUnfolder]: 5406/24920 cut-off events. [2022-11-21 16:11:19,293 INFO L131 PetriNetUnfolder]: For 115/115 co-relation queries the response was YES. [2022-11-21 16:11:19,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33673 conditions, 24920 events. 5406/24920 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 265897 event pairs, 4476 based on Foata normal form. 0/22363 useless extension candidates. Maximal degree in co-relation 33629. Up to 7311 conditions per place. [2022-11-21 16:11:19,418 INFO L137 encePairwiseOnDemand]: 449/454 looper letters, 174 selfloop transitions, 4 changer transitions 0/495 dead transitions. [2022-11-21 16:11:19,418 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 495 transitions, 1392 flow [2022-11-21 16:11:19,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:11:19,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:11:19,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2429 transitions. [2022-11-21 16:11:19,432 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8917033773861968 [2022-11-21 16:11:19,433 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2429 transitions. [2022-11-21 16:11:19,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2429 transitions. [2022-11-21 16:11:19,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:19,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2429 transitions. [2022-11-21 16:11:19,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 404.8333333333333) internal successors, (2429), 6 states have internal predecessors, (2429), 0 states have call successors, (0), 0 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 16:11:19,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 0 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 16:11:19,446 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 0 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 16:11:19,446 INFO L175 Difference]: Start difference. First operand has 377 places, 376 transitions, 798 flow. Second operand 6 states and 2429 transitions. [2022-11-21 16:11:19,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 495 transitions, 1392 flow [2022-11-21 16:11:19,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 495 transitions, 1392 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:11:19,457 INFO L231 Difference]: Finished difference. Result has 381 places, 375 transitions, 804 flow [2022-11-21 16:11:19,458 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=804, PETRI_PLACES=381, PETRI_TRANSITIONS=375} [2022-11-21 16:11:19,461 INFO L288 CegarLoopForPetriNet]: 419 programPoint places, -38 predicate places. [2022-11-21 16:11:19,461 INFO L495 AbstractCegarLoop]: Abstraction has has 381 places, 375 transitions, 804 flow [2022-11-21 16:11:19,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 377.8333333333333) internal successors, (2267), 6 states have internal predecessors, (2267), 0 states have call successors, (0), 0 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 16:11:19,463 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:19,463 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:19,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 16:11:19,463 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-21 16:11:19,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:19,464 INFO L85 PathProgramCache]: Analyzing trace with hash 477295308, now seen corresponding path program 1 times [2022-11-21 16:11:19,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:19,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015827312] [2022-11-21 16:11:19,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:19,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:19,870 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 16:11:19,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:19,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015827312] [2022-11-21 16:11:19,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015827312] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:19,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:19,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:11:19,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600076595] [2022-11-21 16:11:19,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:19,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:11:19,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:19,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:11:19,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:11:19,877 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 454 [2022-11-21 16:11:19,880 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 375 transitions, 804 flow. Second operand has 6 states, 6 states have (on average 370.0) internal successors, (2220), 6 states have internal predecessors, (2220), 0 states have call successors, (0), 0 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 16:11:19,880 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:19,880 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 454 [2022-11-21 16:11:19,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:24,586 INFO L130 PetriNetUnfolder]: 8325/24257 cut-off events. [2022-11-21 16:11:24,587 INFO L131 PetriNetUnfolder]: For 2734/2734 co-relation queries the response was YES. [2022-11-21 16:11:24,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39877 conditions, 24257 events. 8325/24257 cut-off events. For 2734/2734 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 229865 event pairs, 3496 based on Foata normal form. 0/22228 useless extension candidates. Maximal degree in co-relation 39832. Up to 6359 conditions per place. [2022-11-21 16:11:24,743 INFO L137 encePairwiseOnDemand]: 448/454 looper letters, 226 selfloop transitions, 6 changer transitions 0/538 dead transitions. [2022-11-21 16:11:24,743 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 538 transitions, 1602 flow [2022-11-21 16:11:24,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:11:24,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:11:24,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2438 transitions. [2022-11-21 16:11:24,750 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.895007342143906 [2022-11-21 16:11:24,751 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2438 transitions. [2022-11-21 16:11:24,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2438 transitions. [2022-11-21 16:11:24,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:24,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2438 transitions. [2022-11-21 16:11:24,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 406.3333333333333) internal successors, (2438), 6 states have internal predecessors, (2438), 0 states have call successors, (0), 0 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 16:11:24,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 0 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 16:11:24,765 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 0 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 16:11:24,765 INFO L175 Difference]: Start difference. First operand has 381 places, 375 transitions, 804 flow. Second operand 6 states and 2438 transitions. [2022-11-21 16:11:24,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 538 transitions, 1602 flow [2022-11-21 16:11:24,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 538 transitions, 1595 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:11:24,777 INFO L231 Difference]: Finished difference. Result has 381 places, 374 transitions, 807 flow [2022-11-21 16:11:24,777 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=795, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=374, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=807, PETRI_PLACES=381, PETRI_TRANSITIONS=374} [2022-11-21 16:11:24,778 INFO L288 CegarLoopForPetriNet]: 419 programPoint places, -38 predicate places. [2022-11-21 16:11:24,778 INFO L495 AbstractCegarLoop]: Abstraction has has 381 places, 374 transitions, 807 flow [2022-11-21 16:11:24,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 370.0) internal successors, (2220), 6 states have internal predecessors, (2220), 0 states have call successors, (0), 0 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 16:11:24,779 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:24,780 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:24,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 16:11:24,780 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-21 16:11:24,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:24,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1087598914, now seen corresponding path program 1 times [2022-11-21 16:11:24,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:24,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90388380] [2022-11-21 16:11:24,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:24,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:24,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:11:24,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:24,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90388380] [2022-11-21 16:11:24,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90388380] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:24,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:24,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:11:24,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40755190] [2022-11-21 16:11:24,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:24,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:11:24,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:24,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:11:24,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:11:24,912 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 454 [2022-11-21 16:11:24,914 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 374 transitions, 807 flow. Second operand has 4 states, 4 states have (on average 382.25) internal successors, (1529), 4 states have internal predecessors, (1529), 0 states have call successors, (0), 0 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 16:11:24,914 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:24,914 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 454 [2022-11-21 16:11:24,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:25,406 INFO L130 PetriNetUnfolder]: 159/1453 cut-off events. [2022-11-21 16:11:25,406 INFO L131 PetriNetUnfolder]: For 132/133 co-relation queries the response was YES. [2022-11-21 16:11:25,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1963 conditions, 1453 events. 159/1453 cut-off events. For 132/133 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 9527 event pairs, 22 based on Foata normal form. 0/1328 useless extension candidates. Maximal degree in co-relation 1919. Up to 367 conditions per place. [2022-11-21 16:11:25,416 INFO L137 encePairwiseOnDemand]: 448/454 looper letters, 68 selfloop transitions, 6 changer transitions 0/390 dead transitions. [2022-11-21 16:11:25,416 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 390 transitions, 990 flow [2022-11-21 16:11:25,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:11:25,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 16:11:25,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1970 transitions. [2022-11-21 16:11:25,421 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8678414096916299 [2022-11-21 16:11:25,421 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1970 transitions. [2022-11-21 16:11:25,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1970 transitions. [2022-11-21 16:11:25,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:25,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1970 transitions. [2022-11-21 16:11:25,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 394.0) internal successors, (1970), 5 states have internal predecessors, (1970), 0 states have call successors, (0), 0 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 16:11:25,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 454.0) internal successors, (2724), 6 states have internal predecessors, (2724), 0 states have call successors, (0), 0 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 16:11:25,431 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 454.0) internal successors, (2724), 6 states have internal predecessors, (2724), 0 states have call successors, (0), 0 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 16:11:25,432 INFO L175 Difference]: Start difference. First operand has 381 places, 374 transitions, 807 flow. Second operand 5 states and 1970 transitions. [2022-11-21 16:11:25,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 390 transitions, 990 flow [2022-11-21 16:11:25,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 390 transitions, 978 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:11:25,439 INFO L231 Difference]: Finished difference. Result has 383 places, 378 transitions, 833 flow [2022-11-21 16:11:25,439 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=795, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=374, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=369, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=833, PETRI_PLACES=383, PETRI_TRANSITIONS=378} [2022-11-21 16:11:25,440 INFO L288 CegarLoopForPetriNet]: 419 programPoint places, -36 predicate places. [2022-11-21 16:11:25,440 INFO L495 AbstractCegarLoop]: Abstraction has has 383 places, 378 transitions, 833 flow [2022-11-21 16:11:25,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 382.25) internal successors, (1529), 4 states have internal predecessors, (1529), 0 states have call successors, (0), 0 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 16:11:25,441 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:25,441 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:25,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 16:11:25,442 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-21 16:11:25,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:25,442 INFO L85 PathProgramCache]: Analyzing trace with hash -220324401, now seen corresponding path program 1 times [2022-11-21 16:11:25,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:25,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422253727] [2022-11-21 16:11:25,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:25,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:25,487 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 16:11:25,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:25,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422253727] [2022-11-21 16:11:25,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422253727] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:25,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:25,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:11:25,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921072749] [2022-11-21 16:11:25,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:25,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:25,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:25,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:25,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:11:25,491 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 454 [2022-11-21 16:11:25,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 378 transitions, 833 flow. Second operand has 3 states, 3 states have (on average 421.3333333333333) internal successors, (1264), 3 states have internal predecessors, (1264), 0 states have call successors, (0), 0 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 16:11:25,492 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:25,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 454 [2022-11-21 16:11:25,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:25,674 INFO L130 PetriNetUnfolder]: 43/961 cut-off events. [2022-11-21 16:11:25,674 INFO L131 PetriNetUnfolder]: For 20/22 co-relation queries the response was YES. [2022-11-21 16:11:25,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1121 conditions, 961 events. 43/961 cut-off events. For 20/22 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2765 event pairs, 16 based on Foata normal form. 0/886 useless extension candidates. Maximal degree in co-relation 1074. Up to 47 conditions per place. [2022-11-21 16:11:25,683 INFO L137 encePairwiseOnDemand]: 451/454 looper letters, 12 selfloop transitions, 2 changer transitions 0/378 dead transitions. [2022-11-21 16:11:25,683 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 384 places, 378 transitions, 862 flow [2022-11-21 16:11:25,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:25,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:11:25,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1269 transitions. [2022-11-21 16:11:25,687 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9317180616740088 [2022-11-21 16:11:25,687 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1269 transitions. [2022-11-21 16:11:25,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1269 transitions. [2022-11-21 16:11:25,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:25,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1269 transitions. [2022-11-21 16:11:25,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 423.0) internal successors, (1269), 3 states have internal predecessors, (1269), 0 states have call successors, (0), 0 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 16:11:25,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:25,694 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:25,694 INFO L175 Difference]: Start difference. First operand has 383 places, 378 transitions, 833 flow. Second operand 3 states and 1269 transitions. [2022-11-21 16:11:25,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 384 places, 378 transitions, 862 flow [2022-11-21 16:11:25,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 378 transitions, 862 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:11:25,702 INFO L231 Difference]: Finished difference. Result has 384 places, 377 transitions, 835 flow [2022-11-21 16:11:25,703 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=831, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=835, PETRI_PLACES=384, PETRI_TRANSITIONS=377} [2022-11-21 16:11:25,704 INFO L288 CegarLoopForPetriNet]: 419 programPoint places, -35 predicate places. [2022-11-21 16:11:25,704 INFO L495 AbstractCegarLoop]: Abstraction has has 384 places, 377 transitions, 835 flow [2022-11-21 16:11:25,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 421.3333333333333) internal successors, (1264), 3 states have internal predecessors, (1264), 0 states have call successors, (0), 0 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 16:11:25,705 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:25,705 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:25,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 16:11:25,706 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-21 16:11:25,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:25,706 INFO L85 PathProgramCache]: Analyzing trace with hash -18494300, now seen corresponding path program 1 times [2022-11-21 16:11:25,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:25,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645574656] [2022-11-21 16:11:25,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:25,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:25,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:26,125 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 16:11:26,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:26,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645574656] [2022-11-21 16:11:26,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645574656] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:26,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:26,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:11:26,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356164728] [2022-11-21 16:11:26,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:26,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:11:26,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:26,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:11:26,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:11:26,134 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 356 out of 454 [2022-11-21 16:11:26,136 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 377 transitions, 835 flow. Second operand has 6 states, 6 states have (on average 358.1666666666667) internal successors, (2149), 6 states have internal predecessors, (2149), 0 states have call successors, (0), 0 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 16:11:26,136 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:26,216 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 356 of 454 [2022-11-21 16:11:26,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:31,062 INFO L130 PetriNetUnfolder]: 8112/28463 cut-off events. [2022-11-21 16:11:31,062 INFO L131 PetriNetUnfolder]: For 1170/1170 co-relation queries the response was YES. [2022-11-21 16:11:31,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43566 conditions, 28463 events. 8112/28463 cut-off events. For 1170/1170 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 287742 event pairs, 2858 based on Foata normal form. 0/26805 useless extension candidates. Maximal degree in co-relation 43516. Up to 5250 conditions per place. [2022-11-21 16:11:31,336 INFO L137 encePairwiseOnDemand]: 424/454 looper letters, 117 selfloop transitions, 26 changer transitions 0/440 dead transitions. [2022-11-21 16:11:31,337 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 384 places, 440 transitions, 1259 flow [2022-11-21 16:11:31,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:11:31,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:11:31,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2281 transitions. [2022-11-21 16:11:31,342 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8373715124816447 [2022-11-21 16:11:31,343 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2281 transitions. [2022-11-21 16:11:31,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2281 transitions. [2022-11-21 16:11:31,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:31,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2281 transitions. [2022-11-21 16:11:31,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 380.1666666666667) internal successors, (2281), 6 states have internal predecessors, (2281), 0 states have call successors, (0), 0 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 16:11:31,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 0 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 16:11:31,354 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 0 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 16:11:31,356 INFO L175 Difference]: Start difference. First operand has 384 places, 377 transitions, 835 flow. Second operand 6 states and 2281 transitions. [2022-11-21 16:11:31,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 384 places, 440 transitions, 1259 flow [2022-11-21 16:11:31,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 440 transitions, 1255 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:11:31,367 INFO L231 Difference]: Finished difference. Result has 382 places, 372 transitions, 873 flow [2022-11-21 16:11:31,368 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=821, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=873, PETRI_PLACES=382, PETRI_TRANSITIONS=372} [2022-11-21 16:11:31,368 INFO L288 CegarLoopForPetriNet]: 419 programPoint places, -37 predicate places. [2022-11-21 16:11:31,369 INFO L495 AbstractCegarLoop]: Abstraction has has 382 places, 372 transitions, 873 flow [2022-11-21 16:11:31,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 358.1666666666667) internal successors, (2149), 6 states have internal predecessors, (2149), 0 states have call successors, (0), 0 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 16:11:31,370 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:31,370 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:31,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 16:11:31,370 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-21 16:11:31,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:31,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1245292839, now seen corresponding path program 1 times [2022-11-21 16:11:31,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:31,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345211600] [2022-11-21 16:11:31,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:31,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:31,419 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 16:11:31,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:31,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345211600] [2022-11-21 16:11:31,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345211600] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:31,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:31,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:11:31,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136931997] [2022-11-21 16:11:31,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:31,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:31,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:31,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:31,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:11:31,423 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 454 [2022-11-21 16:11:31,424 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 372 transitions, 873 flow. Second operand has 3 states, 3 states have (on average 373.6666666666667) internal successors, (1121), 3 states have internal predecessors, (1121), 0 states have call successors, (0), 0 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 16:11:31,424 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:31,425 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 454 [2022-11-21 16:11:31,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:31,760 INFO L130 PetriNetUnfolder]: 141/1403 cut-off events. [2022-11-21 16:11:31,760 INFO L131 PetriNetUnfolder]: For 143/144 co-relation queries the response was YES. [2022-11-21 16:11:31,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2021 conditions, 1403 events. 141/1403 cut-off events. For 143/144 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8840 event pairs, 102 based on Foata normal form. 0/1317 useless extension candidates. Maximal degree in co-relation 1973. Up to 347 conditions per place. [2022-11-21 16:11:31,772 INFO L137 encePairwiseOnDemand]: 451/454 looper letters, 48 selfloop transitions, 2 changer transitions 0/372 dead transitions. [2022-11-21 16:11:31,773 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 372 transitions, 974 flow [2022-11-21 16:11:31,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:31,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:11:31,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1161 transitions. [2022-11-21 16:11:31,776 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8524229074889867 [2022-11-21 16:11:31,776 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1161 transitions. [2022-11-21 16:11:31,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1161 transitions. [2022-11-21 16:11:31,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:31,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1161 transitions. [2022-11-21 16:11:31,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 387.0) internal successors, (1161), 3 states have internal predecessors, (1161), 0 states have call successors, (0), 0 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 16:11:31,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:31,783 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:31,783 INFO L175 Difference]: Start difference. First operand has 382 places, 372 transitions, 873 flow. Second operand 3 states and 1161 transitions. [2022-11-21 16:11:31,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 372 transitions, 974 flow [2022-11-21 16:11:31,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 372 transitions, 922 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:11:31,792 INFO L231 Difference]: Finished difference. Result has 378 places, 371 transitions, 823 flow [2022-11-21 16:11:31,793 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=819, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=369, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=823, PETRI_PLACES=378, PETRI_TRANSITIONS=371} [2022-11-21 16:11:31,793 INFO L288 CegarLoopForPetriNet]: 419 programPoint places, -41 predicate places. [2022-11-21 16:11:31,793 INFO L495 AbstractCegarLoop]: Abstraction has has 378 places, 371 transitions, 823 flow [2022-11-21 16:11:31,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 373.6666666666667) internal successors, (1121), 3 states have internal predecessors, (1121), 0 states have call successors, (0), 0 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 16:11:31,794 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:31,794 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:11:31,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 16:11:31,795 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-21 16:11:31,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:31,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1608529474, now seen corresponding path program 1 times [2022-11-21 16:11:31,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:31,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107769292] [2022-11-21 16:11:31,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:31,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:31,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:31,853 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 16:11:31,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:31,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107769292] [2022-11-21 16:11:31,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107769292] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:31,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:31,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:11:31,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165555042] [2022-11-21 16:11:31,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:31,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:31,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:31,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:31,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:11:31,857 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 454 [2022-11-21 16:11:31,858 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 371 transitions, 823 flow. Second operand has 3 states, 3 states have (on average 375.6666666666667) internal successors, (1127), 3 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 16:11:31,859 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:31,859 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 454 [2022-11-21 16:11:31,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:32,181 INFO L130 PetriNetUnfolder]: 139/1396 cut-off events. [2022-11-21 16:11:32,181 INFO L131 PetriNetUnfolder]: For 131/132 co-relation queries the response was YES. [2022-11-21 16:11:32,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1867 conditions, 1396 events. 139/1396 cut-off events. For 131/132 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8632 event pairs, 100 based on Foata normal form. 0/1315 useless extension candidates. Maximal degree in co-relation 1819. Up to 340 conditions per place. [2022-11-21 16:11:32,191 INFO L137 encePairwiseOnDemand]: 451/454 looper letters, 47 selfloop transitions, 2 changer transitions 0/371 dead transitions. [2022-11-21 16:11:32,191 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 371 transitions, 922 flow [2022-11-21 16:11:32,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:32,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:11:32,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1160 transitions. [2022-11-21 16:11:32,195 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8516886930983847 [2022-11-21 16:11:32,195 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1160 transitions. [2022-11-21 16:11:32,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1160 transitions. [2022-11-21 16:11:32,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:32,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1160 transitions. [2022-11-21 16:11:32,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 386.6666666666667) internal successors, (1160), 3 states have internal predecessors, (1160), 0 states have call successors, (0), 0 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 16:11:32,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:32,202 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:32,202 INFO L175 Difference]: Start difference. First operand has 378 places, 371 transitions, 823 flow. Second operand 3 states and 1160 transitions. [2022-11-21 16:11:32,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 371 transitions, 922 flow [2022-11-21 16:11:32,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 371 transitions, 918 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:11:32,209 INFO L231 Difference]: Finished difference. Result has 377 places, 370 transitions, 821 flow [2022-11-21 16:11:32,210 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=817, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=821, PETRI_PLACES=377, PETRI_TRANSITIONS=370} [2022-11-21 16:11:32,210 INFO L288 CegarLoopForPetriNet]: 419 programPoint places, -42 predicate places. [2022-11-21 16:11:32,210 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 370 transitions, 821 flow [2022-11-21 16:11:32,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 375.6666666666667) internal successors, (1127), 3 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 16:11:32,211 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:32,211 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:11:32,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-21 16:11:32,212 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-21 16:11:32,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:32,212 INFO L85 PathProgramCache]: Analyzing trace with hash 758723701, now seen corresponding path program 1 times [2022-11-21 16:11:32,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:32,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999118149] [2022-11-21 16:11:32,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:32,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:32,276 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 16:11:32,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:32,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999118149] [2022-11-21 16:11:32,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999118149] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:32,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:32,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:11:32,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118792679] [2022-11-21 16:11:32,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:32,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:32,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:32,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:32,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:11:32,281 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 454 [2022-11-21 16:11:32,283 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 370 transitions, 821 flow. Second operand has 3 states, 3 states have (on average 377.6666666666667) internal successors, (1133), 3 states have internal predecessors, (1133), 0 states have call successors, (0), 0 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 16:11:32,283 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:32,283 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 454 [2022-11-21 16:11:32,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:32,786 INFO L130 PetriNetUnfolder]: 137/1389 cut-off events. [2022-11-21 16:11:32,787 INFO L131 PetriNetUnfolder]: For 129/130 co-relation queries the response was YES. [2022-11-21 16:11:32,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1853 conditions, 1389 events. 137/1389 cut-off events. For 129/130 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8597 event pairs, 98 based on Foata normal form. 0/1313 useless extension candidates. Maximal degree in co-relation 1805. Up to 333 conditions per place. [2022-11-21 16:11:32,795 INFO L137 encePairwiseOnDemand]: 451/454 looper letters, 46 selfloop transitions, 2 changer transitions 0/370 dead transitions. [2022-11-21 16:11:32,795 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 370 transitions, 918 flow [2022-11-21 16:11:32,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:32,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:11:32,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1159 transitions. [2022-11-21 16:11:32,800 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8509544787077826 [2022-11-21 16:11:32,800 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1159 transitions. [2022-11-21 16:11:32,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1159 transitions. [2022-11-21 16:11:32,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:32,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1159 transitions. [2022-11-21 16:11:32,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 386.3333333333333) internal successors, (1159), 3 states have internal predecessors, (1159), 0 states have call successors, (0), 0 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 16:11:32,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:32,812 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:32,812 INFO L175 Difference]: Start difference. First operand has 377 places, 370 transitions, 821 flow. Second operand 3 states and 1159 transitions. [2022-11-21 16:11:32,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 370 transitions, 918 flow [2022-11-21 16:11:32,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 370 transitions, 914 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:11:32,820 INFO L231 Difference]: Finished difference. Result has 376 places, 369 transitions, 819 flow [2022-11-21 16:11:32,821 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=815, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=819, PETRI_PLACES=376, PETRI_TRANSITIONS=369} [2022-11-21 16:11:32,822 INFO L288 CegarLoopForPetriNet]: 419 programPoint places, -43 predicate places. [2022-11-21 16:11:32,822 INFO L495 AbstractCegarLoop]: Abstraction has has 376 places, 369 transitions, 819 flow [2022-11-21 16:11:32,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 377.6666666666667) internal successors, (1133), 3 states have internal predecessors, (1133), 0 states have call successors, (0), 0 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 16:11:32,823 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:32,823 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:11:32,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-21 16:11:32,823 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err28ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-21 16:11:32,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:32,824 INFO L85 PathProgramCache]: Analyzing trace with hash 2101440844, now seen corresponding path program 1 times [2022-11-21 16:11:32,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:32,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148009338] [2022-11-21 16:11:32,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:32,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:32,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:32,921 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 16:11:32,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:32,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148009338] [2022-11-21 16:11:32,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148009338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:32,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:32,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:11:32,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425301084] [2022-11-21 16:11:32,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:32,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:32,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:32,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:32,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:11:32,926 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 454 [2022-11-21 16:11:32,927 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 369 transitions, 819 flow. Second operand has 3 states, 3 states have (on average 379.6666666666667) internal successors, (1139), 3 states have internal predecessors, (1139), 0 states have call successors, (0), 0 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 16:11:32,928 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:32,928 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 454 [2022-11-21 16:11:32,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:33,333 INFO L130 PetriNetUnfolder]: 135/1382 cut-off events. [2022-11-21 16:11:33,333 INFO L131 PetriNetUnfolder]: For 127/128 co-relation queries the response was YES. [2022-11-21 16:11:33,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1839 conditions, 1382 events. 135/1382 cut-off events. For 127/128 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8562 event pairs, 96 based on Foata normal form. 0/1311 useless extension candidates. Maximal degree in co-relation 1791. Up to 326 conditions per place. [2022-11-21 16:11:33,343 INFO L137 encePairwiseOnDemand]: 451/454 looper letters, 45 selfloop transitions, 2 changer transitions 0/369 dead transitions. [2022-11-21 16:11:33,344 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 369 transitions, 914 flow [2022-11-21 16:11:33,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:33,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:11:33,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1158 transitions. [2022-11-21 16:11:33,348 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8502202643171806 [2022-11-21 16:11:33,348 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1158 transitions. [2022-11-21 16:11:33,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1158 transitions. [2022-11-21 16:11:33,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:33,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1158 transitions. [2022-11-21 16:11:33,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 386.0) internal successors, (1158), 3 states have internal predecessors, (1158), 0 states have call successors, (0), 0 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 16:11:33,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:33,355 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:33,356 INFO L175 Difference]: Start difference. First operand has 376 places, 369 transitions, 819 flow. Second operand 3 states and 1158 transitions. [2022-11-21 16:11:33,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 369 transitions, 914 flow [2022-11-21 16:11:33,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 369 transitions, 910 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:11:33,364 INFO L231 Difference]: Finished difference. Result has 375 places, 368 transitions, 817 flow [2022-11-21 16:11:33,364 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=813, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=817, PETRI_PLACES=375, PETRI_TRANSITIONS=368} [2022-11-21 16:11:33,365 INFO L288 CegarLoopForPetriNet]: 419 programPoint places, -44 predicate places. [2022-11-21 16:11:33,365 INFO L495 AbstractCegarLoop]: Abstraction has has 375 places, 368 transitions, 817 flow [2022-11-21 16:11:33,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 379.6666666666667) internal successors, (1139), 3 states have internal predecessors, (1139), 0 states have call successors, (0), 0 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 16:11:33,366 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:33,366 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:11:33,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-21 16:11:33,367 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err35ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-21 16:11:33,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:33,367 INFO L85 PathProgramCache]: Analyzing trace with hash -854194109, now seen corresponding path program 1 times [2022-11-21 16:11:33,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:33,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455274934] [2022-11-21 16:11:33,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:33,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:33,469 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 16:11:33,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:33,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455274934] [2022-11-21 16:11:33,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455274934] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:33,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:33,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:11:33,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114719180] [2022-11-21 16:11:33,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:33,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:33,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:33,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:33,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:11:33,476 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 454 [2022-11-21 16:11:33,478 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 368 transitions, 817 flow. Second operand has 3 states, 3 states have (on average 381.6666666666667) internal successors, (1145), 3 states have internal predecessors, (1145), 0 states have call successors, (0), 0 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 16:11:33,478 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:33,478 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 454 [2022-11-21 16:11:33,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:33,862 INFO L130 PetriNetUnfolder]: 133/1375 cut-off events. [2022-11-21 16:11:33,862 INFO L131 PetriNetUnfolder]: For 125/126 co-relation queries the response was YES. [2022-11-21 16:11:33,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1825 conditions, 1375 events. 133/1375 cut-off events. For 125/126 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 8453 event pairs, 94 based on Foata normal form. 0/1309 useless extension candidates. Maximal degree in co-relation 1777. Up to 319 conditions per place. [2022-11-21 16:11:33,870 INFO L137 encePairwiseOnDemand]: 451/454 looper letters, 0 selfloop transitions, 0 changer transitions 368/368 dead transitions. [2022-11-21 16:11:33,870 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 368 transitions, 910 flow [2022-11-21 16:11:33,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:33,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:11:33,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1157 transitions. [2022-11-21 16:11:33,874 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8494860499265786 [2022-11-21 16:11:33,875 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1157 transitions. [2022-11-21 16:11:33,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1157 transitions. [2022-11-21 16:11:33,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:33,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1157 transitions. [2022-11-21 16:11:33,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 385.6666666666667) internal successors, (1157), 3 states have internal predecessors, (1157), 0 states have call successors, (0), 0 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 16:11:33,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:33,885 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 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 16:11:33,885 INFO L175 Difference]: Start difference. First operand has 375 places, 368 transitions, 817 flow. Second operand 3 states and 1157 transitions. [2022-11-21 16:11:33,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 368 transitions, 910 flow [2022-11-21 16:11:33,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 368 transitions, 906 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:11:33,892 INFO L231 Difference]: Finished difference. Result has 374 places, 0 transitions, 0 flow [2022-11-21 16:11:33,892 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=811, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=374, PETRI_TRANSITIONS=0} [2022-11-21 16:11:33,893 INFO L288 CegarLoopForPetriNet]: 419 programPoint places, -45 predicate places. [2022-11-21 16:11:33,893 INFO L495 AbstractCegarLoop]: Abstraction has has 374 places, 0 transitions, 0 flow [2022-11-21 16:11:33,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 381.6666666666667) internal successors, (1145), 3 states have internal predecessors, (1145), 0 states have call successors, (0), 0 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 16:11:33,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (100 of 101 remaining) [2022-11-21 16:11:33,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (99 of 101 remaining) [2022-11-21 16:11:33,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (98 of 101 remaining) [2022-11-21 16:11:33,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (97 of 101 remaining) [2022-11-21 16:11:33,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (96 of 101 remaining) [2022-11-21 16:11:33,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (95 of 101 remaining) [2022-11-21 16:11:33,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (94 of 101 remaining) [2022-11-21 16:11:33,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (93 of 101 remaining) [2022-11-21 16:11:33,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (92 of 101 remaining) [2022-11-21 16:11:33,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (91 of 101 remaining) [2022-11-21 16:11:33,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (90 of 101 remaining) [2022-11-21 16:11:33,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (89 of 101 remaining) [2022-11-21 16:11:33,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (88 of 101 remaining) [2022-11-21 16:11:33,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (87 of 101 remaining) [2022-11-21 16:11:33,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (86 of 101 remaining) [2022-11-21 16:11:33,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (85 of 101 remaining) [2022-11-21 16:11:33,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (84 of 101 remaining) [2022-11-21 16:11:33,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (83 of 101 remaining) [2022-11-21 16:11:33,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (82 of 101 remaining) [2022-11-21 16:11:33,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (81 of 101 remaining) [2022-11-21 16:11:33,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (80 of 101 remaining) [2022-11-21 16:11:33,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (79 of 101 remaining) [2022-11-21 16:11:33,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (78 of 101 remaining) [2022-11-21 16:11:33,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (77 of 101 remaining) [2022-11-21 16:11:33,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (76 of 101 remaining) [2022-11-21 16:11:33,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (75 of 101 remaining) [2022-11-21 16:11:33,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (74 of 101 remaining) [2022-11-21 16:11:33,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONDATA_RACE (73 of 101 remaining) [2022-11-21 16:11:33,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONDATA_RACE (72 of 101 remaining) [2022-11-21 16:11:33,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONDATA_RACE (71 of 101 remaining) [2022-11-21 16:11:33,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONDATA_RACE (70 of 101 remaining) [2022-11-21 16:11:33,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONDATA_RACE (69 of 101 remaining) [2022-11-21 16:11:33,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err24ASSERT_VIOLATIONDATA_RACE (68 of 101 remaining) [2022-11-21 16:11:33,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err25ASSERT_VIOLATIONDATA_RACE (67 of 101 remaining) [2022-11-21 16:11:33,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err26ASSERT_VIOLATIONDATA_RACE (66 of 101 remaining) [2022-11-21 16:11:33,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err27ASSERT_VIOLATIONDATA_RACE (65 of 101 remaining) [2022-11-21 16:11:33,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err28ASSERT_VIOLATIONDATA_RACE (64 of 101 remaining) [2022-11-21 16:11:33,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err29ASSERT_VIOLATIONDATA_RACE (63 of 101 remaining) [2022-11-21 16:11:33,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err30ASSERT_VIOLATIONDATA_RACE (62 of 101 remaining) [2022-11-21 16:11:33,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err31ASSERT_VIOLATIONDATA_RACE (61 of 101 remaining) [2022-11-21 16:11:33,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err32ASSERT_VIOLATIONDATA_RACE (60 of 101 remaining) [2022-11-21 16:11:33,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err33ASSERT_VIOLATIONDATA_RACE (59 of 101 remaining) [2022-11-21 16:11:33,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err34ASSERT_VIOLATIONDATA_RACE (58 of 101 remaining) [2022-11-21 16:11:33,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err35ASSERT_VIOLATIONDATA_RACE (57 of 101 remaining) [2022-11-21 16:11:33,909 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (56 of 101 remaining) [2022-11-21 16:11:33,909 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (55 of 101 remaining) [2022-11-21 16:11:33,909 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (54 of 101 remaining) [2022-11-21 16:11:33,909 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (53 of 101 remaining) [2022-11-21 16:11:33,909 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (52 of 101 remaining) [2022-11-21 16:11:33,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (51 of 101 remaining) [2022-11-21 16:11:33,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (50 of 101 remaining) [2022-11-21 16:11:33,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (49 of 101 remaining) [2022-11-21 16:11:33,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (48 of 101 remaining) [2022-11-21 16:11:33,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (47 of 101 remaining) [2022-11-21 16:11:33,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (46 of 101 remaining) [2022-11-21 16:11:33,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 101 remaining) [2022-11-21 16:11:33,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (44 of 101 remaining) [2022-11-21 16:11:33,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (43 of 101 remaining) [2022-11-21 16:11:33,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (42 of 101 remaining) [2022-11-21 16:11:33,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (41 of 101 remaining) [2022-11-21 16:11:33,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (40 of 101 remaining) [2022-11-21 16:11:33,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (39 of 101 remaining) [2022-11-21 16:11:33,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (38 of 101 remaining) [2022-11-21 16:11:33,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (37 of 101 remaining) [2022-11-21 16:11:33,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (36 of 101 remaining) [2022-11-21 16:11:33,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (35 of 101 remaining) [2022-11-21 16:11:33,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (34 of 101 remaining) [2022-11-21 16:11:33,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (33 of 101 remaining) [2022-11-21 16:11:33,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (32 of 101 remaining) [2022-11-21 16:11:33,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (31 of 101 remaining) [2022-11-21 16:11:33,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (30 of 101 remaining) [2022-11-21 16:11:33,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (29 of 101 remaining) [2022-11-21 16:11:33,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (28 of 101 remaining) [2022-11-21 16:11:33,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (27 of 101 remaining) [2022-11-21 16:11:33,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (26 of 101 remaining) [2022-11-21 16:11:33,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (25 of 101 remaining) [2022-11-21 16:11:33,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (24 of 101 remaining) [2022-11-21 16:11:33,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (23 of 101 remaining) [2022-11-21 16:11:33,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (22 of 101 remaining) [2022-11-21 16:11:33,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (21 of 101 remaining) [2022-11-21 16:11:33,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (20 of 101 remaining) [2022-11-21 16:11:33,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (19 of 101 remaining) [2022-11-21 16:11:33,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (18 of 101 remaining) [2022-11-21 16:11:33,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (17 of 101 remaining) [2022-11-21 16:11:33,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONDATA_RACE (16 of 101 remaining) [2022-11-21 16:11:33,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONDATA_RACE (15 of 101 remaining) [2022-11-21 16:11:33,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONDATA_RACE (14 of 101 remaining) [2022-11-21 16:11:33,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONDATA_RACE (13 of 101 remaining) [2022-11-21 16:11:33,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONDATA_RACE (12 of 101 remaining) [2022-11-21 16:11:33,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err24ASSERT_VIOLATIONDATA_RACE (11 of 101 remaining) [2022-11-21 16:11:33,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err25ASSERT_VIOLATIONDATA_RACE (10 of 101 remaining) [2022-11-21 16:11:33,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err26ASSERT_VIOLATIONDATA_RACE (9 of 101 remaining) [2022-11-21 16:11:33,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err27ASSERT_VIOLATIONDATA_RACE (8 of 101 remaining) [2022-11-21 16:11:33,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err28ASSERT_VIOLATIONDATA_RACE (7 of 101 remaining) [2022-11-21 16:11:33,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err29ASSERT_VIOLATIONDATA_RACE (6 of 101 remaining) [2022-11-21 16:11:33,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err30ASSERT_VIOLATIONDATA_RACE (5 of 101 remaining) [2022-11-21 16:11:33,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err31ASSERT_VIOLATIONDATA_RACE (4 of 101 remaining) [2022-11-21 16:11:33,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err32ASSERT_VIOLATIONDATA_RACE (3 of 101 remaining) [2022-11-21 16:11:33,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err33ASSERT_VIOLATIONDATA_RACE (2 of 101 remaining) [2022-11-21 16:11:33,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err34ASSERT_VIOLATIONDATA_RACE (1 of 101 remaining) [2022-11-21 16:11:33,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err35ASSERT_VIOLATIONDATA_RACE (0 of 101 remaining) [2022-11-21 16:11:33,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-21 16:11:33,925 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:33,934 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:11:33,935 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:11:33,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:11:33 BasicIcfg [2022-11-21 16:11:33,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:11:33,942 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:11:33,943 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:11:33,943 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:11:33,943 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:11:01" (3/4) ... [2022-11-21 16:11:33,946 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:11:33,952 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-21 16:11:33,953 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-21 16:11:33,961 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-21 16:11:33,961 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 16:11:33,962 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 16:11:33,962 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:11:34,030 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6542c0c-21a5-402e-8e22-727621ca7d92/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:11:34,030 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:11:34,031 INFO L158 Benchmark]: Toolchain (without parser) took 33750.53ms. Allocated memory was 138.4MB in the beginning and 9.6GB in the end (delta: 9.5GB). Free memory was 76.0MB in the beginning and 8.3GB in the end (delta: -8.2GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2022-11-21 16:11:34,031 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 138.4MB. Free memory was 108.6MB in the beginning and 108.5MB in the end (delta: 72.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:11:34,031 INFO L158 Benchmark]: CACSL2BoogieTranslator took 407.37ms. Allocated memory was 138.4MB in the beginning and 176.2MB in the end (delta: 37.7MB). Free memory was 75.8MB in the beginning and 139.0MB in the end (delta: -63.2MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2022-11-21 16:11:34,032 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.63ms. Allocated memory is still 176.2MB. Free memory was 139.0MB in the beginning and 136.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:11:34,032 INFO L158 Benchmark]: Boogie Preprocessor took 43.11ms. Allocated memory is still 176.2MB. Free memory was 136.0MB in the beginning and 133.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:11:34,032 INFO L158 Benchmark]: RCFGBuilder took 958.11ms. Allocated memory is still 176.2MB. Free memory was 133.1MB in the beginning and 100.8MB in the end (delta: 32.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-21 16:11:34,033 INFO L158 Benchmark]: TraceAbstraction took 32188.78ms. Allocated memory was 176.2MB in the beginning and 9.6GB in the end (delta: 9.5GB). Free memory was 100.4MB in the beginning and 8.3GB in the end (delta: -8.2GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2022-11-21 16:11:34,033 INFO L158 Benchmark]: Witness Printer took 87.58ms. Allocated memory is still 9.6GB. Free memory was 8.3GB in the beginning and 8.3GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:11:34,035 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 138.4MB. Free memory was 108.6MB in the beginning and 108.5MB in the end (delta: 72.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 407.37ms. Allocated memory was 138.4MB in the beginning and 176.2MB in the end (delta: 37.7MB). Free memory was 75.8MB in the beginning and 139.0MB in the end (delta: -63.2MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.63ms. Allocated memory is still 176.2MB. Free memory was 139.0MB in the beginning and 136.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.11ms. Allocated memory is still 176.2MB. Free memory was 136.0MB in the beginning and 133.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 958.11ms. Allocated memory is still 176.2MB. Free memory was 133.1MB in the beginning and 100.8MB in the end (delta: 32.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 32188.78ms. Allocated memory was 176.2MB in the beginning and 9.6GB in the end (delta: 9.5GB). Free memory was 100.4MB in the beginning and 8.3GB in the end (delta: -8.2GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. * Witness Printer took 87.58ms. Allocated memory is still 9.6GB. Free memory was 8.3GB in the beginning and 8.3GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 108]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: 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 5 procedures, 708 locations, 101 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: 31.9s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 27.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 311 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 311 mSDsluCounter, 713 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 457 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2016 IncrementalHoareTripleChecker+Invalid, 2473 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 457 mSolverCounterUnsat, 661 mSDtfsCounter, 2016 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=880occurred in iteration=0, InterpolantAutomatonStates: 82, 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, 3.0s InterpolantComputationTime, 2313 NumberOfCodeBlocks, 2313 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 2292 ConstructedInterpolants, 0 QuantifiedInterpolants, 3165 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 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 55 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 16:11:34,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6542c0c-21a5-402e-8e22-727621ca7d92/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