./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b 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_ac5486cc-4d9e-431e-8158-66c8d5426254/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5486cc-4d9e-431e-8158-66c8d5426254/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5486cc-4d9e-431e-8158-66c8d5426254/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5486cc-4d9e-431e-8158-66c8d5426254/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5486cc-4d9e-431e-8158-66c8d5426254/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5486cc-4d9e-431e-8158-66c8d5426254/bin/uautomizer-TMbwUNV5ro --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 98c397d7a260fe673f9e4655b5dca942c114f9b11115010a8eef60e068615ab1 --- 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-8393723 [2022-11-18 20:02:13,692 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:02:13,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:02:13,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:02:13,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:02:13,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:02:13,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:02:13,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:02:13,742 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:02:13,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:02:13,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:02:13,753 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:02:13,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:02:13,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:02:13,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:02:13,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:02:13,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:02:13,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:02:13,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:02:13,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:02:13,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:02:13,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:02:13,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:02:13,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:02:13,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:02:13,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:02:13,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:02:13,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:02:13,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:02:13,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:02:13,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:02:13,803 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:02:13,805 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:02:13,806 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:02:13,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:02:13,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:02:13,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:02:13,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:02:13,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:02:13,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:02:13,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:02:13,815 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5486cc-4d9e-431e-8158-66c8d5426254/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:02:13,867 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:02:13,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:02:13,869 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:02:13,869 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:02:13,870 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:02:13,870 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:02:13,871 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:02:13,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:02:13,872 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:02:13,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:02:13,874 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:02:13,874 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:02:13,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:02:13,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:02:13,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:02:13,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:02:13,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:02:13,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:02:13,876 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:02:13,876 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:02:13,877 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:02:13,877 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:02:13,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:02:13,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:02:13,878 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:02:13,878 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:02:13,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:02:13,880 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:02:13,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:02:13,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:02:13,881 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:02:13,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:02:13,882 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:02:13,883 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:02:13,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:02:13,883 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_ac5486cc-4d9e-431e-8158-66c8d5426254/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5486cc-4d9e-431e-8158-66c8d5426254/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98c397d7a260fe673f9e4655b5dca942c114f9b11115010a8eef60e068615ab1 [2022-11-18 20:02:14,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:02:14,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:02:14,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:02:14,296 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:02:14,298 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:02:14,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5486cc-4d9e-431e-8158-66c8d5426254/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c [2022-11-18 20:02:14,382 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5486cc-4d9e-431e-8158-66c8d5426254/bin/uautomizer-TMbwUNV5ro/data/34b08cc90/aaaeaf3789bc421e86ae7cb7e39395f7/FLAG43a8b3d50 [2022-11-18 20:02:15,079 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:02:15,083 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5486cc-4d9e-431e-8158-66c8d5426254/sv-benchmarks/c/weaver/chl-word-subst.wvr.c [2022-11-18 20:02:15,095 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5486cc-4d9e-431e-8158-66c8d5426254/bin/uautomizer-TMbwUNV5ro/data/34b08cc90/aaaeaf3789bc421e86ae7cb7e39395f7/FLAG43a8b3d50 [2022-11-18 20:02:15,410 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5486cc-4d9e-431e-8158-66c8d5426254/bin/uautomizer-TMbwUNV5ro/data/34b08cc90/aaaeaf3789bc421e86ae7cb7e39395f7 [2022-11-18 20:02:15,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:02:15,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:02:15,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:02:15,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:02:15,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:02:15,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:02:15" (1/1) ... [2022-11-18 20:02:15,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a278c76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:15, skipping insertion in model container [2022-11-18 20:02:15,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:02:15" (1/1) ... [2022-11-18 20:02:15,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:02:15,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:02:15,729 WARN L234 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_ac5486cc-4d9e-431e-8158-66c8d5426254/sv-benchmarks/c/weaver/chl-word-subst.wvr.c[3345,3358] [2022-11-18 20:02:15,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:02:15,745 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:02:15,838 WARN L234 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_ac5486cc-4d9e-431e-8158-66c8d5426254/sv-benchmarks/c/weaver/chl-word-subst.wvr.c[3345,3358] [2022-11-18 20:02:15,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:02:15,894 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:02:15,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:15 WrapperNode [2022-11-18 20:02:15,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:02:15,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:02:15,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:02:15,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:02:15,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:15" (1/1) ... [2022-11-18 20:02:15,945 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:15" (1/1) ... [2022-11-18 20:02:16,006 INFO L138 Inliner]: procedures = 25, calls = 45, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 268 [2022-11-18 20:02:16,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:02:16,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:02:16,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:02:16,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:02:16,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:15" (1/1) ... [2022-11-18 20:02:16,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:15" (1/1) ... [2022-11-18 20:02:16,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:15" (1/1) ... [2022-11-18 20:02:16,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:15" (1/1) ... [2022-11-18 20:02:16,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:15" (1/1) ... [2022-11-18 20:02:16,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:15" (1/1) ... [2022-11-18 20:02:16,065 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:15" (1/1) ... [2022-11-18 20:02:16,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:15" (1/1) ... [2022-11-18 20:02:16,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:02:16,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:02:16,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:02:16,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:02:16,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:15" (1/1) ... [2022-11-18 20:02:16,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:02:16,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5486cc-4d9e-431e-8158-66c8d5426254/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:02:16,147 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5486cc-4d9e-431e-8158-66c8d5426254/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:02:16,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5486cc-4d9e-431e-8158-66c8d5426254/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:02:16,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:02:16,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:02:16,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:02:16,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:02:16,202 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:02:16,204 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:02:16,205 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:02:16,206 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:02:16,206 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 20:02:16,206 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 20:02:16,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:02:16,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:02:16,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:02:16,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:02:16,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:02:16,209 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:02:16,413 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:02:16,416 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:02:17,769 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:02:17,785 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:02:17,786 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-18 20:02:17,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:02:17 BoogieIcfgContainer [2022-11-18 20:02:17,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:02:17,800 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:02:17,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:02:17,806 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:02:17,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:02:15" (1/3) ... [2022-11-18 20:02:17,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48392e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:02:17, skipping insertion in model container [2022-11-18 20:02:17,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:15" (2/3) ... [2022-11-18 20:02:17,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48392e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:02:17, skipping insertion in model container [2022-11-18 20:02:17,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:02:17" (3/3) ... [2022-11-18 20:02:17,810 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-subst.wvr.c [2022-11-18 20:02:17,824 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:02:17,836 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:02:17,836 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 80 error locations. [2022-11-18 20:02:17,836 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:02:18,076 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 20:02:18,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 645 places, 668 transitions, 1360 flow [2022-11-18 20:02:18,582 INFO L130 PetriNetUnfolder]: 33/665 cut-off events. [2022-11-18 20:02:18,583 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:02:18,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 678 conditions, 665 events. 33/665 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1730 event pairs, 0 based on Foata normal form. 0/552 useless extension candidates. Maximal degree in co-relation 481. Up to 3 conditions per place. [2022-11-18 20:02:18,606 INFO L82 GeneralOperation]: Start removeDead. Operand has 645 places, 668 transitions, 1360 flow [2022-11-18 20:02:18,629 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 621 places, 642 transitions, 1302 flow [2022-11-18 20:02:18,653 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:02:18,664 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;@65fa1143, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:02:18,664 INFO L358 AbstractCegarLoop]: Starting to check reachability of 140 error locations. [2022-11-18 20:02:18,670 INFO L130 PetriNetUnfolder]: 0/31 cut-off events. [2022-11-18 20:02:18,670 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:02:18,671 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:18,672 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] [2022-11-18 20:02:18,672 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-18 20:02:18,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:18,681 INFO L85 PathProgramCache]: Analyzing trace with hash 504251784, now seen corresponding path program 1 times [2022-11-18 20:02:18,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:18,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596907867] [2022-11-18 20:02:18,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:18,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:19,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:02:19,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:19,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596907867] [2022-11-18 20:02:19,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596907867] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:19,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:19,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:02:19,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943150824] [2022-11-18 20:02:19,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:19,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:02:19,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:19,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:02:19,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:02:19,117 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 629 out of 668 [2022-11-18 20:02:19,129 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 621 places, 642 transitions, 1302 flow. Second operand has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:19,129 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:02:19,130 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 629 of 668 [2022-11-18 20:02:19,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:02:20,467 INFO L130 PetriNetUnfolder]: 235/2607 cut-off events. [2022-11-18 20:02:20,467 INFO L131 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES. [2022-11-18 20:02:20,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2986 conditions, 2607 events. 235/2607 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 21024 event pairs, 132 based on Foata normal form. 75/2126 useless extension candidates. Maximal degree in co-relation 2557. Up to 250 conditions per place. [2022-11-18 20:02:20,548 INFO L137 encePairwiseOnDemand]: 652/668 looper letters, 21 selfloop transitions, 2 changer transitions 7/628 dead transitions. [2022-11-18 20:02:20,548 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 622 places, 628 transitions, 1320 flow [2022-11-18 20:02:20,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:02:20,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:02:20,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1924 transitions. [2022-11-18 20:02:20,578 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9600798403193613 [2022-11-18 20:02:20,579 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1924 transitions. [2022-11-18 20:02:20,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1924 transitions. [2022-11-18 20:02:20,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:02:20,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1924 transitions. [2022-11-18 20:02:20,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 641.3333333333334) internal successors, (1924), 3 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:20,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:20,616 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:20,618 INFO L175 Difference]: Start difference. First operand has 621 places, 642 transitions, 1302 flow. Second operand 3 states and 1924 transitions. [2022-11-18 20:02:20,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 622 places, 628 transitions, 1320 flow [2022-11-18 20:02:20,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 616 places, 628 transitions, 1308 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 20:02:20,652 INFO L231 Difference]: Finished difference. Result has 616 places, 621 transitions, 1252 flow [2022-11-18 20:02:20,658 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=668, PETRI_DIFFERENCE_MINUEND_FLOW=1262, PETRI_DIFFERENCE_MINUEND_PLACES=614, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=628, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=626, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1252, PETRI_PLACES=616, PETRI_TRANSITIONS=621} [2022-11-18 20:02:20,662 INFO L288 CegarLoopForPetriNet]: 621 programPoint places, -5 predicate places. [2022-11-18 20:02:20,663 INFO L495 AbstractCegarLoop]: Abstraction has has 616 places, 621 transitions, 1252 flow [2022-11-18 20:02:20,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:20,664 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:20,665 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] [2022-11-18 20:02:20,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:02:20,666 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-18 20:02:20,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:20,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1202226586, now seen corresponding path program 1 times [2022-11-18 20:02:20,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:20,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776859029] [2022-11-18 20:02:20,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:20,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:20,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:20,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:02:20,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:20,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776859029] [2022-11-18 20:02:20,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776859029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:20,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:20,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:02:20,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078282637] [2022-11-18 20:02:20,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:20,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:02:20,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:20,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:02:20,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:02:20,802 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 629 out of 668 [2022-11-18 20:02:20,805 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 616 places, 621 transitions, 1252 flow. Second operand has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:20,805 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:02:20,806 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 629 of 668 [2022-11-18 20:02:20,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:02:21,826 INFO L130 PetriNetUnfolder]: 133/1880 cut-off events. [2022-11-18 20:02:21,827 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-18 20:02:21,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2043 conditions, 1880 events. 133/1880 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 12578 event pairs, 60 based on Foata normal form. 0/1494 useless extension candidates. Maximal degree in co-relation 2003. Up to 142 conditions per place. [2022-11-18 20:02:21,881 INFO L137 encePairwiseOnDemand]: 665/668 looper letters, 21 selfloop transitions, 2 changer transitions 0/620 dead transitions. [2022-11-18 20:02:21,881 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 610 places, 620 transitions, 1296 flow [2022-11-18 20:02:21,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:02:21,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:02:21,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1911 transitions. [2022-11-18 20:02:21,889 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9535928143712575 [2022-11-18 20:02:21,889 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1911 transitions. [2022-11-18 20:02:21,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1911 transitions. [2022-11-18 20:02:21,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:02:21,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1911 transitions. [2022-11-18 20:02:21,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 637.0) internal successors, (1911), 3 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:21,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:21,904 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:21,904 INFO L175 Difference]: Start difference. First operand has 616 places, 621 transitions, 1252 flow. Second operand 3 states and 1911 transitions. [2022-11-18 20:02:21,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 610 places, 620 transitions, 1296 flow [2022-11-18 20:02:21,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 608 places, 620 transitions, 1292 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:02:21,918 INFO L231 Difference]: Finished difference. Result has 608 places, 620 transitions, 1250 flow [2022-11-18 20:02:21,920 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=668, PETRI_DIFFERENCE_MINUEND_FLOW=1246, PETRI_DIFFERENCE_MINUEND_PLACES=606, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=620, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=618, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1250, PETRI_PLACES=608, PETRI_TRANSITIONS=620} [2022-11-18 20:02:21,921 INFO L288 CegarLoopForPetriNet]: 621 programPoint places, -13 predicate places. [2022-11-18 20:02:21,921 INFO L495 AbstractCegarLoop]: Abstraction has has 608 places, 620 transitions, 1250 flow [2022-11-18 20:02:21,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:21,924 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:21,924 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] [2022-11-18 20:02:21,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:02:21,924 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-18 20:02:21,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:21,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1029815392, now seen corresponding path program 1 times [2022-11-18 20:02:21,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:21,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082783245] [2022-11-18 20:02:21,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:21,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:21,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:22,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:02:22,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:22,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082783245] [2022-11-18 20:02:22,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082783245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:22,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:22,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:02:22,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424188471] [2022-11-18 20:02:22,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:22,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:02:22,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:22,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:02:22,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:02:22,053 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 629 out of 668 [2022-11-18 20:02:22,056 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 608 places, 620 transitions, 1250 flow. Second operand has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:22,057 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:02:22,057 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 629 of 668 [2022-11-18 20:02:22,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:02:23,051 INFO L130 PetriNetUnfolder]: 241/2561 cut-off events. [2022-11-18 20:02:23,051 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2022-11-18 20:02:23,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2832 conditions, 2561 events. 241/2561 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 20338 event pairs, 132 based on Foata normal form. 0/2032 useless extension candidates. Maximal degree in co-relation 2785. Up to 256 conditions per place. [2022-11-18 20:02:23,125 INFO L137 encePairwiseOnDemand]: 665/668 looper letters, 21 selfloop transitions, 2 changer transitions 0/619 dead transitions. [2022-11-18 20:02:23,125 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 609 places, 619 transitions, 1294 flow [2022-11-18 20:02:23,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:02:23,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:02:23,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1911 transitions. [2022-11-18 20:02:23,134 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9535928143712575 [2022-11-18 20:02:23,135 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1911 transitions. [2022-11-18 20:02:23,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1911 transitions. [2022-11-18 20:02:23,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:02:23,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1911 transitions. [2022-11-18 20:02:23,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 637.0) internal successors, (1911), 3 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:23,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:23,152 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:23,153 INFO L175 Difference]: Start difference. First operand has 608 places, 620 transitions, 1250 flow. Second operand 3 states and 1911 transitions. [2022-11-18 20:02:23,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 609 places, 619 transitions, 1294 flow [2022-11-18 20:02:23,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 607 places, 619 transitions, 1290 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:02:23,174 INFO L231 Difference]: Finished difference. Result has 607 places, 619 transitions, 1248 flow [2022-11-18 20:02:23,176 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=668, PETRI_DIFFERENCE_MINUEND_FLOW=1244, PETRI_DIFFERENCE_MINUEND_PLACES=605, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=619, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=617, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1248, PETRI_PLACES=607, PETRI_TRANSITIONS=619} [2022-11-18 20:02:23,178 INFO L288 CegarLoopForPetriNet]: 621 programPoint places, -14 predicate places. [2022-11-18 20:02:23,179 INFO L495 AbstractCegarLoop]: Abstraction has has 607 places, 619 transitions, 1248 flow [2022-11-18 20:02:23,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:23,180 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:23,181 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:23,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:02:23,181 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-18 20:02:23,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:23,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1723244206, now seen corresponding path program 1 times [2022-11-18 20:02:23,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:23,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170493205] [2022-11-18 20:02:23,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:23,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:23,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:23,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:02:23,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:23,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170493205] [2022-11-18 20:02:23,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170493205] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:23,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:23,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:02:23,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861693375] [2022-11-18 20:02:23,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:23,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:02:23,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:23,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:02:23,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:02:23,313 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 626 out of 668 [2022-11-18 20:02:23,317 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 607 places, 619 transitions, 1248 flow. Second operand has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:23,317 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:02:23,318 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 626 of 668 [2022-11-18 20:02:23,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:02:24,326 INFO L130 PetriNetUnfolder]: 254/2815 cut-off events. [2022-11-18 20:02:24,326 INFO L131 PetriNetUnfolder]: For 15/20 co-relation queries the response was YES. [2022-11-18 20:02:24,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3164 conditions, 2815 events. 254/2815 cut-off events. For 15/20 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 23371 event pairs, 132 based on Foata normal form. 0/2244 useless extension candidates. Maximal degree in co-relation 3110. Up to 286 conditions per place. [2022-11-18 20:02:24,379 INFO L137 encePairwiseOnDemand]: 665/668 looper letters, 24 selfloop transitions, 2 changer transitions 0/618 dead transitions. [2022-11-18 20:02:24,379 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 608 places, 618 transitions, 1298 flow [2022-11-18 20:02:24,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:02:24,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:02:24,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1905 transitions. [2022-11-18 20:02:24,386 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9505988023952096 [2022-11-18 20:02:24,386 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1905 transitions. [2022-11-18 20:02:24,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1905 transitions. [2022-11-18 20:02:24,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:02:24,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1905 transitions. [2022-11-18 20:02:24,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 635.0) internal successors, (1905), 3 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:24,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:24,401 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:24,402 INFO L175 Difference]: Start difference. First operand has 607 places, 619 transitions, 1248 flow. Second operand 3 states and 1905 transitions. [2022-11-18 20:02:24,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 608 places, 618 transitions, 1298 flow [2022-11-18 20:02:24,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 606 places, 618 transitions, 1294 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:02:24,416 INFO L231 Difference]: Finished difference. Result has 606 places, 618 transitions, 1246 flow [2022-11-18 20:02:24,417 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=668, PETRI_DIFFERENCE_MINUEND_FLOW=1242, PETRI_DIFFERENCE_MINUEND_PLACES=604, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=618, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=616, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1246, PETRI_PLACES=606, PETRI_TRANSITIONS=618} [2022-11-18 20:02:24,418 INFO L288 CegarLoopForPetriNet]: 621 programPoint places, -15 predicate places. [2022-11-18 20:02:24,418 INFO L495 AbstractCegarLoop]: Abstraction has has 606 places, 618 transitions, 1246 flow [2022-11-18 20:02:24,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:24,420 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:24,420 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:24,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:02:24,421 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-18 20:02:24,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:24,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1672899481, now seen corresponding path program 1 times [2022-11-18 20:02:24,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:24,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354196505] [2022-11-18 20:02:24,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:24,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:24,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:02:24,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:24,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354196505] [2022-11-18 20:02:24,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354196505] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:24,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:24,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:02:24,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618584532] [2022-11-18 20:02:24,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:24,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:02:24,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:24,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:02:24,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:02:24,482 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 626 out of 668 [2022-11-18 20:02:24,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 606 places, 618 transitions, 1246 flow. Second operand has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:24,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:02:24,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 626 of 668 [2022-11-18 20:02:24,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:02:25,285 INFO L130 PetriNetUnfolder]: 154/1960 cut-off events. [2022-11-18 20:02:25,285 INFO L131 PetriNetUnfolder]: For 22/24 co-relation queries the response was YES. [2022-11-18 20:02:25,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2155 conditions, 1960 events. 154/1960 cut-off events. For 22/24 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 13604 event pairs, 60 based on Foata normal form. 0/1578 useless extension candidates. Maximal degree in co-relation 2094. Up to 174 conditions per place. [2022-11-18 20:02:25,338 INFO L137 encePairwiseOnDemand]: 665/668 looper letters, 24 selfloop transitions, 2 changer transitions 0/617 dead transitions. [2022-11-18 20:02:25,338 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 607 places, 617 transitions, 1296 flow [2022-11-18 20:02:25,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:02:25,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:02:25,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1905 transitions. [2022-11-18 20:02:25,344 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9505988023952096 [2022-11-18 20:02:25,344 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1905 transitions. [2022-11-18 20:02:25,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1905 transitions. [2022-11-18 20:02:25,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:02:25,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1905 transitions. [2022-11-18 20:02:25,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 635.0) internal successors, (1905), 3 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:25,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:25,359 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:25,359 INFO L175 Difference]: Start difference. First operand has 606 places, 618 transitions, 1246 flow. Second operand 3 states and 1905 transitions. [2022-11-18 20:02:25,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 607 places, 617 transitions, 1296 flow [2022-11-18 20:02:25,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 605 places, 617 transitions, 1292 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:02:25,372 INFO L231 Difference]: Finished difference. Result has 605 places, 617 transitions, 1244 flow [2022-11-18 20:02:25,374 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=668, PETRI_DIFFERENCE_MINUEND_FLOW=1240, PETRI_DIFFERENCE_MINUEND_PLACES=603, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=617, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=615, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1244, PETRI_PLACES=605, PETRI_TRANSITIONS=617} [2022-11-18 20:02:25,375 INFO L288 CegarLoopForPetriNet]: 621 programPoint places, -16 predicate places. [2022-11-18 20:02:25,375 INFO L495 AbstractCegarLoop]: Abstraction has has 605 places, 617 transitions, 1244 flow [2022-11-18 20:02:25,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:25,377 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:25,377 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] [2022-11-18 20:02:25,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:02:25,377 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-18 20:02:25,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:25,378 INFO L85 PathProgramCache]: Analyzing trace with hash -335974082, now seen corresponding path program 1 times [2022-11-18 20:02:25,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:25,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497385801] [2022-11-18 20:02:25,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:25,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:25,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:25,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:02:25,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:25,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497385801] [2022-11-18 20:02:25,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497385801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:25,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:25,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:02:25,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772310693] [2022-11-18 20:02:25,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:25,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:02:25,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:25,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:02:25,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:02:25,435 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 626 out of 668 [2022-11-18 20:02:25,438 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 605 places, 617 transitions, 1244 flow. Second operand has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:25,439 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:02:25,439 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 626 of 668 [2022-11-18 20:02:25,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:02:26,476 INFO L130 PetriNetUnfolder]: 274/2576 cut-off events. [2022-11-18 20:02:26,477 INFO L131 PetriNetUnfolder]: For 71/75 co-relation queries the response was YES. [2022-11-18 20:02:26,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2910 conditions, 2576 events. 274/2576 cut-off events. For 71/75 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 19846 event pairs, 132 based on Foata normal form. 0/2071 useless extension candidates. Maximal degree in co-relation 2842. Up to 319 conditions per place. [2022-11-18 20:02:26,558 INFO L137 encePairwiseOnDemand]: 665/668 looper letters, 24 selfloop transitions, 2 changer transitions 0/616 dead transitions. [2022-11-18 20:02:26,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 606 places, 616 transitions, 1294 flow [2022-11-18 20:02:26,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:02:26,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:02:26,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1905 transitions. [2022-11-18 20:02:26,570 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9505988023952096 [2022-11-18 20:02:26,570 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1905 transitions. [2022-11-18 20:02:26,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1905 transitions. [2022-11-18 20:02:26,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:02:26,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1905 transitions. [2022-11-18 20:02:26,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 635.0) internal successors, (1905), 3 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:26,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:26,605 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:26,605 INFO L175 Difference]: Start difference. First operand has 605 places, 617 transitions, 1244 flow. Second operand 3 states and 1905 transitions. [2022-11-18 20:02:26,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 606 places, 616 transitions, 1294 flow [2022-11-18 20:02:26,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 604 places, 616 transitions, 1290 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:02:26,624 INFO L231 Difference]: Finished difference. Result has 604 places, 616 transitions, 1242 flow [2022-11-18 20:02:26,626 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=668, PETRI_DIFFERENCE_MINUEND_FLOW=1238, PETRI_DIFFERENCE_MINUEND_PLACES=602, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=616, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=614, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1242, PETRI_PLACES=604, PETRI_TRANSITIONS=616} [2022-11-18 20:02:26,629 INFO L288 CegarLoopForPetriNet]: 621 programPoint places, -17 predicate places. [2022-11-18 20:02:26,630 INFO L495 AbstractCegarLoop]: Abstraction has has 604 places, 616 transitions, 1242 flow [2022-11-18 20:02:26,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:26,632 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:26,632 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] [2022-11-18 20:02:26,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:02:26,633 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-18 20:02:26,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:26,633 INFO L85 PathProgramCache]: Analyzing trace with hash -2052208895, now seen corresponding path program 1 times [2022-11-18 20:02:26,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:26,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155791427] [2022-11-18 20:02:26,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:26,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:26,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:02:26,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:26,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155791427] [2022-11-18 20:02:26,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155791427] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:26,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:26,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:02:26,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149046107] [2022-11-18 20:02:26,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:26,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:02:26,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:26,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:02:26,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:02:26,739 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 629 out of 668 [2022-11-18 20:02:26,742 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 604 places, 616 transitions, 1242 flow. Second operand has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:26,742 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:02:26,742 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 629 of 668 [2022-11-18 20:02:26,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:02:27,558 INFO L130 PetriNetUnfolder]: 165/2355 cut-off events. [2022-11-18 20:02:27,558 INFO L131 PetriNetUnfolder]: For 11/14 co-relation queries the response was YES. [2022-11-18 20:02:27,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2544 conditions, 2355 events. 165/2355 cut-off events. For 11/14 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 18225 event pairs, 64 based on Foata normal form. 0/1926 useless extension candidates. Maximal degree in co-relation 2468. Up to 151 conditions per place. [2022-11-18 20:02:27,603 INFO L137 encePairwiseOnDemand]: 662/668 looper letters, 17 selfloop transitions, 1 changer transitions 0/611 dead transitions. [2022-11-18 20:02:27,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 601 places, 611 transitions, 1268 flow [2022-11-18 20:02:27,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:02:27,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:02:27,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1910 transitions. [2022-11-18 20:02:27,609 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9530938123752495 [2022-11-18 20:02:27,609 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1910 transitions. [2022-11-18 20:02:27,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1910 transitions. [2022-11-18 20:02:27,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:02:27,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1910 transitions. [2022-11-18 20:02:27,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 636.6666666666666) internal successors, (1910), 3 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:27,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:27,621 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:27,621 INFO L175 Difference]: Start difference. First operand has 604 places, 616 transitions, 1242 flow. Second operand 3 states and 1910 transitions. [2022-11-18 20:02:27,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 601 places, 611 transitions, 1268 flow [2022-11-18 20:02:27,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 599 places, 611 transitions, 1264 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:02:27,635 INFO L231 Difference]: Finished difference. Result has 599 places, 611 transitions, 1230 flow [2022-11-18 20:02:27,636 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=668, PETRI_DIFFERENCE_MINUEND_FLOW=1228, PETRI_DIFFERENCE_MINUEND_PLACES=597, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=611, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=610, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1230, PETRI_PLACES=599, PETRI_TRANSITIONS=611} [2022-11-18 20:02:27,637 INFO L288 CegarLoopForPetriNet]: 621 programPoint places, -22 predicate places. [2022-11-18 20:02:27,638 INFO L495 AbstractCegarLoop]: Abstraction has has 599 places, 611 transitions, 1230 flow [2022-11-18 20:02:27,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:27,639 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:27,639 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] [2022-11-18 20:02:27,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:02:27,640 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-18 20:02:27,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:27,640 INFO L85 PathProgramCache]: Analyzing trace with hash -725399534, now seen corresponding path program 1 times [2022-11-18 20:02:27,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:27,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921375766] [2022-11-18 20:02:27,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:27,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:27,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:02:27,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:27,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921375766] [2022-11-18 20:02:27,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921375766] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:27,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:27,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:02:27,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577228244] [2022-11-18 20:02:27,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:27,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:02:27,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:27,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:02:27,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:02:27,773 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 629 out of 668 [2022-11-18 20:02:27,779 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 599 places, 611 transitions, 1230 flow. Second operand has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:27,779 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:02:27,779 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 629 of 668 [2022-11-18 20:02:27,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:02:28,669 INFO L130 PetriNetUnfolder]: 259/2800 cut-off events. [2022-11-18 20:02:28,669 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-11-18 20:02:28,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3152 conditions, 2800 events. 259/2800 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 21920 event pairs, 132 based on Foata normal form. 0/2270 useless extension candidates. Maximal degree in co-relation 3077. Up to 290 conditions per place. [2022-11-18 20:02:28,756 INFO L137 encePairwiseOnDemand]: 665/668 looper letters, 21 selfloop transitions, 2 changer transitions 0/610 dead transitions. [2022-11-18 20:02:28,756 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 600 places, 610 transitions, 1274 flow [2022-11-18 20:02:28,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:02:28,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:02:28,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1911 transitions. [2022-11-18 20:02:28,762 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9535928143712575 [2022-11-18 20:02:28,762 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1911 transitions. [2022-11-18 20:02:28,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1911 transitions. [2022-11-18 20:02:28,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:02:28,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1911 transitions. [2022-11-18 20:02:28,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 637.0) internal successors, (1911), 3 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:28,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:28,778 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:28,778 INFO L175 Difference]: Start difference. First operand has 599 places, 611 transitions, 1230 flow. Second operand 3 states and 1911 transitions. [2022-11-18 20:02:28,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 600 places, 610 transitions, 1274 flow [2022-11-18 20:02:28,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 599 places, 610 transitions, 1273 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:02:28,790 INFO L231 Difference]: Finished difference. Result has 599 places, 610 transitions, 1231 flow [2022-11-18 20:02:28,791 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=668, PETRI_DIFFERENCE_MINUEND_FLOW=1227, PETRI_DIFFERENCE_MINUEND_PLACES=597, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=610, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=608, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1231, PETRI_PLACES=599, PETRI_TRANSITIONS=610} [2022-11-18 20:02:28,796 INFO L288 CegarLoopForPetriNet]: 621 programPoint places, -22 predicate places. [2022-11-18 20:02:28,796 INFO L495 AbstractCegarLoop]: Abstraction has has 599 places, 610 transitions, 1231 flow [2022-11-18 20:02:28,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:28,797 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:28,798 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:28,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:02:28,798 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-18 20:02:28,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:28,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1684484972, now seen corresponding path program 1 times [2022-11-18 20:02:28,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:28,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230071242] [2022-11-18 20:02:28,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:28,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:28,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:29,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:02:29,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:29,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230071242] [2022-11-18 20:02:29,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230071242] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:29,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:29,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:02:29,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603724006] [2022-11-18 20:02:29,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:29,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:02:29,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:29,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:02:29,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:02:29,597 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 506 out of 668 [2022-11-18 20:02:29,602 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 599 places, 610 transitions, 1231 flow. Second operand has 6 states, 6 states have (on average 507.8333333333333) internal successors, (3047), 6 states have internal predecessors, (3047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:29,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:02:29,603 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 506 of 668 [2022-11-18 20:02:29,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand